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* [PATCH 0/7] use interval trees for anon rmap
@ 2012-09-04  9:20 Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 1/7] mm: interval tree updates Michel Lespinasse
                   ` (6 more replies)
  0 siblings, 7 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

This patch series applies on top of the previous ones currently queued
into Andrew's -mm tree (the rbtree, augmented rbtree and interval tree
changes).

The goal here is to use interval trees to replace the same_anon_vma
linked list, and avoid anon rmap scalability issues when a given
process has many vmas linked onto the same anon_vma (as can easily
happen when a large vma is broken up into smaller chunks using
mprotect or munmap).

Patch 1 modifies the generic interval tree implementation and as such,
it can be seen as an amendment to the previous patch series which had
introduced it.

Patch 2 makes the anon_vma locking more strict in vma_adjust(), fixing
an issue I noticed when mprotect adjusts the boundary between two vmas
and only the second one has an anon_vma assigned.

Patch 3 makes the anon_vma locking more strict in move_ptes(). This is
a temporary solution to make things simpler while the anon rmap interval
tree is being introduced. Patch 7 later relaxes the locking again for the
most common cases.

Patch 4 implements the anon rmap interval tree and uses it to replace the
same_anon_vma linked list.

Patch 5 eliminates the error case in vma_address() - the call sites
have gotten their vma's from an interval tree so that the desired
pgoff (and address) are guaranteed to fall within the vma's interval.

Patch 6 adds a build option for the existing DEBUG_MM_RB code, and
extends it to check that vma's intervals have not been modified since
the vmas were added onto their interval trees.

Patch 7 avoids taking rmap locks in move_ptes() during exec() and for the
common cases of mremap(). The most common case where mremap() would still
take these locks would be if part of a large vma had been previously moved
and is now being moved back to its original location. I don't expect this
to be very frequent, though, so move_ptes() should be as efficient as it
was before patch 3 for all likely cases.

Michel Lespinasse (7):
  mm: interval tree updates
  mm: fix potential anon_vma locking issue in mprotect()
  mm anon rmap: remove anon_vma_moveto_tail
  mm anon rmap: replace same_anon_vma linked list with an interval tree.
  mm rmap: remove vma_address check for address inside vma
  mm: add CONFIG_DEBUG_VM_RB build option
  mm: avoid taking rmap locks in move_ptes()

 fs/exec.c                             |    2 +-
 include/linux/interval_tree_generic.h |  191 ++++++++++++++++++++++++++++
 include/linux/interval_tree_tmpl.h    |  219 ---------------------------------
 include/linux/mm.h                    |   29 ++++-
 include/linux/rmap.h                  |   15 ++-
 kernel/fork.c                         |    7 +-
 lib/Kconfig.debug                     |    9 ++
 lib/interval_tree.c                   |   15 +--
 mm/huge_memory.c                      |    9 +-
 mm/interval_tree.c                    |  109 ++++++++++++-----
 mm/ksm.c                              |    9 +-
 mm/memory-failure.c                   |    5 +-
 mm/mmap.c                             |  100 +++++++++++-----
 mm/mremap.c                           |   65 ++++++----
 mm/rmap.c                             |  117 +++++-------------
 15 files changed, 484 insertions(+), 417 deletions(-)
 create mode 100644 include/linux/interval_tree_generic.h
 delete mode 100644 include/linux/interval_tree_tmpl.h

-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* [PATCH 1/7] mm: interval tree updates
  2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
@ 2012-09-04  9:20 ` Michel Lespinasse
  2012-09-07 22:13   ` Andrew Morton
  2012-09-04  9:20 ` [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect() Michel Lespinasse
                   ` (5 subsequent siblings)
  6 siblings, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

This commit updates the generic interval tree code that was
introduced in "mm: replace vma prio_tree with an interval tree".

Changes:

- fixed 'endpoing' typo noticed by Andrew Morton

- replaced include/linux/interval_tree_tmpl.h, which was used as a
  template (including it automatically defined the interval tree
  functions) with include/linux/interval_tree_generic.h, which only
  defines a preprocessor macro INTERVAL_TREE_DEFINE(), which itself
  defines the interval tree functions when invoked. Now that is a very
  long macro which is unfortunate, but it does make the usage sites
  (lib/interval_tree.c and mm/interval_tree.c) a bit nicer than previously.

- make use of RB_DECLARE_CALLBACKS() in the INTERVAL_TREE_DEFINE() macro,
  instead of duplicating that code in the interval tree template.

- replaced vma_interval_tree_add(), which was actually handling the
  nonlinear and interval tree cases, with vma_interval_tree_insert_after()
  which handles only the interval tree case and has an API that is more
  consistent with the other interval tree handling functions.
  The nonlinear case is now handled explicitly in kernel/fork.c dup_mmap().

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 include/linux/interval_tree_generic.h |  191 ++++++++++++++++++++++++++++
 include/linux/interval_tree_tmpl.h    |  219 ---------------------------------
 include/linux/mm.h                    |    6 +-
 kernel/fork.c                         |    7 +-
 lib/interval_tree.c                   |   15 +--
 mm/interval_tree.c                    |   60 +++++-----
 6 files changed, 235 insertions(+), 263 deletions(-)
 create mode 100644 include/linux/interval_tree_generic.h
 delete mode 100644 include/linux/interval_tree_tmpl.h

diff --git a/include/linux/interval_tree_generic.h b/include/linux/interval_tree_generic.h
new file mode 100644
index 000000000000..58370e1862ad
--- /dev/null
+++ b/include/linux/interval_tree_generic.h
@@ -0,0 +1,191 @@
+/*
+  Interval Trees
+  (C) 2012  Michel Lespinasse <walken@google.com>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  include/linux/interval_tree_generic.h
+*/
+
+#include <linux/rbtree_augmented.h>
+
+/*
+ * Template for implementing interval trees
+ *
+ * ITSTRUCT:   struct type of the interval tree nodes
+ * ITRB:       name of struct rb_node field within ITSTRUCT
+ * ITTYPE:     type of the interval endpoints
+ * ITSUBTREE:  name of ITTYPE field within ITSTRUCT holding last-in-subtree
+ * ITSTART(n): start endpoint of ITSTRUCT node n
+ * ITLAST(n):  last endpoint of ITSTRUCT node n
+ * ITSTATIC:   'static' or empty
+ * ITPREFIX:   prefix to use for the inline tree definitions
+ *
+ * Note - before using this, please consider if non-generic version
+ * (interval_tree.h) would work for you...
+ */
+
+#define INTERVAL_TREE_DEFINE(ITSTRUCT, ITRB, ITTYPE, ITSUBTREE,		      \
+			     ITSTART, ITLAST, ITSTATIC, ITPREFIX)	      \
+									      \
+/* Callbacks for augmented rbtree insert and remove */			      \
+									      \
+static inline ITTYPE ITPREFIX ## _compute_subtree_last(ITSTRUCT *node)	      \
+{									      \
+	ITTYPE max = ITLAST(node), subtree_last;			      \
+	if (node->ITRB.rb_left) {					      \
+		subtree_last = rb_entry(node->ITRB.rb_left,		      \
+					ITSTRUCT, ITRB)->ITSUBTREE;	      \
+		if (max < subtree_last)					      \
+			max = subtree_last;				      \
+	}								      \
+	if (node->ITRB.rb_right) {					      \
+		subtree_last = rb_entry(node->ITRB.rb_right,		      \
+					ITSTRUCT, ITRB)->ITSUBTREE;	      \
+		if (max < subtree_last)					      \
+			max = subtree_last;				      \
+	}								      \
+	return max;							      \
+}									      \
+									      \
+RB_DECLARE_CALLBACKS(static, ITPREFIX ## _augment, ITSTRUCT, ITRB,	      \
+		     ITTYPE, ITSUBTREE, ITPREFIX ## _compute_subtree_last)    \
+									      \
+/* Insert / remove interval nodes from the tree */			      \
+									      \
+ITSTATIC void ITPREFIX ## _insert(ITSTRUCT *node, struct rb_root *root)	      \
+{									      \
+	struct rb_node **link = &root->rb_node, *rb_parent = NULL;	      \
+	ITTYPE start = ITSTART(node), last = ITLAST(node);		      \
+	ITSTRUCT *parent;						      \
+									      \
+	while (*link) {							      \
+		rb_parent = *link;					      \
+		parent = rb_entry(rb_parent, ITSTRUCT, ITRB);		      \
+		if (parent->ITSUBTREE < last)				      \
+			parent->ITSUBTREE = last;			      \
+		if (start < ITSTART(parent))				      \
+			link = &parent->ITRB.rb_left;			      \
+		else							      \
+			link = &parent->ITRB.rb_right;			      \
+	}								      \
+									      \
+	node->ITSUBTREE = last;						      \
+	rb_link_node(&node->ITRB, rb_parent, link);			      \
+	rb_insert_augmented(&node->ITRB, root, &ITPREFIX ## _augment);	      \
+}									      \
+									      \
+ITSTATIC void ITPREFIX ## _remove(ITSTRUCT *node, struct rb_root *root)	      \
+{									      \
+	rb_erase_augmented(&node->ITRB, root, &ITPREFIX ## _augment);	      \
+}									      \
+									      \
+/*									      \
+ * Iterate over intervals intersecting [start;last]			      \
+ *									      \
+ * Note that a node's interval intersects [start;last] iff:		      \
+ *   Cond1: ITSTART(node) <= last					      \
+ * and									      \
+ *   Cond2: start <= ITLAST(node)					      \
+ */									      \
+									      \
+static ITSTRUCT *							      \
+ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last)	      \
+{									      \
+	while (true) {							      \
+		/*							      \
+		 * Loop invariant: start <= node->ITSUBTREE		      \
+		 * (Cond2 is satisfied by one of the subtree nodes)	      \
+		 */							      \
+		if (node->ITRB.rb_left) {				      \
+			ITSTRUCT *left = rb_entry(node->ITRB.rb_left,	      \
+						  ITSTRUCT, ITRB);	      \
+			if (start <= left->ITSUBTREE) {			      \
+				/*					      \
+				 * Some nodes in left subtree satisfy Cond2.  \
+				 * Iterate to find the leftmost such node N.  \
+				 * If it also satisfies Cond1, that's the     \
+				 * match we are looking for. Otherwise, there \
+				 * is no matching interval as nodes to the    \
+				 * right of N can't satisfy Cond1 either.     \
+				 */					      \
+				node = left;				      \
+				continue;				      \
+			}						      \
+		}							      \
+		if (ITSTART(node) <= last) {		/* Cond1 */	      \
+			if (start <= ITLAST(node))	/* Cond2 */	      \
+				return node;	/* node is leftmost match */  \
+			if (node->ITRB.rb_right) {			      \
+				node = rb_entry(node->ITRB.rb_right,	      \
+						ITSTRUCT, ITRB);	      \
+				if (start <= node->ITSUBTREE)		      \
+					continue;			      \
+			}						      \
+		}							      \
+		return NULL;	/* No match */				      \
+	}								      \
+}									      \
+									      \
+ITSTATIC ITSTRUCT *							      \
+ITPREFIX ## _iter_first(struct rb_root *root, ITTYPE start, ITTYPE last)      \
+{									      \
+	ITSTRUCT *node;							      \
+									      \
+	if (!root->rb_node)						      \
+		return NULL;						      \
+	node = rb_entry(root->rb_node, ITSTRUCT, ITRB);			      \
+	if (node->ITSUBTREE < start)					      \
+		return NULL;						      \
+	return ITPREFIX ## _subtree_search(node, start, last);		      \
+}									      \
+									      \
+ITSTATIC ITSTRUCT *							      \
+ITPREFIX ## _iter_next(ITSTRUCT *node, ITTYPE start, ITTYPE last)	      \
+{									      \
+	struct rb_node *rb = node->ITRB.rb_right, *prev;		      \
+									      \
+	while (true) {							      \
+		/*							      \
+		 * Loop invariants:					      \
+		 *   Cond1: ITSTART(node) <= last			      \
+		 *   rb == node->ITRB.rb_right				      \
+		 *							      \
+		 * First, search right subtree if suitable		      \
+		 */							      \
+		if (rb) {						      \
+			ITSTRUCT *right = rb_entry(rb, ITSTRUCT, ITRB);	      \
+			if (start <= right->ITSUBTREE)			      \
+				return ITPREFIX ## _subtree_search(right,     \
+								start, last); \
+		}							      \
+									      \
+		/* Move up the tree until we come from a node's left child */ \
+		do {							      \
+			rb = rb_parent(&node->ITRB);			      \
+			if (!rb)					      \
+				return NULL;				      \
+			prev = &node->ITRB;				      \
+			node = rb_entry(rb, ITSTRUCT, ITRB);		      \
+			rb = node->ITRB.rb_right;			      \
+		} while (prev == rb);					      \
+									      \
+		/* Check if the node intersects [start;last] */		      \
+		if (last < ITSTART(node))		/* !Cond1 */	      \
+			return NULL;					      \
+		else if (start <= ITLAST(node))		/* Cond2 */	      \
+			return node;					      \
+	}								      \
+}
diff --git a/include/linux/interval_tree_tmpl.h b/include/linux/interval_tree_tmpl.h
deleted file mode 100644
index c1aeb922d65f..000000000000
--- a/include/linux/interval_tree_tmpl.h
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
-  Interval Trees
-  (C) 2012  Michel Lespinasse <walken@google.com>
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with this program; if not, write to the Free Software
-  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-  include/linux/interval_tree_tmpl.h
-*/
-
-#include <linux/rbtree_augmented.h>
-
-/*
- * Template for implementing interval trees
- *
- * ITSTRUCT:   struct type of the interval tree nodes
- * ITRB:       name of struct rb_node field within ITSTRUCT
- * ITTYPE:     type of the interval endpoints
- * ITSUBTREE:  name of ITTYPE field within ITSTRUCT holding last-in-subtree
- * ITSTART(n): start endpoint of ITSTRUCT node n
- * ITLAST(n):  last endpoing of ITSTRUCT node n
- * ITSTATIC:   'static' or empty
- * ITPREFIX:   prefix to use for the inline tree definitions
- */
-
-/* IT(name) -> ITPREFIX_name */
-#define _ITNAME(prefix, name) prefix ## _ ## name
-#define ITNAME(prefix, name) _ITNAME(prefix, name)
-#define IT(name) ITNAME(ITPREFIX, name)
-
-/* Callbacks for augmented rbtree insert and remove */
-
-static inline ITTYPE IT(compute_subtree_last)(ITSTRUCT *node)
-{
-	ITTYPE max = ITLAST(node), subtree_last;
-	if (node->ITRB.rb_left) {
-		subtree_last = rb_entry(node->ITRB.rb_left,
-					ITSTRUCT, ITRB)->ITSUBTREE;
-		if (max < subtree_last)
-			max = subtree_last;
-	}
-	if (node->ITRB.rb_right) {
-		subtree_last = rb_entry(node->ITRB.rb_right,
-					ITSTRUCT, ITRB)->ITSUBTREE;
-		if (max < subtree_last)
-			max = subtree_last;
-	}
-	return max;
-}
-
-static inline void
-IT(augment_propagate)(struct rb_node *rb, struct rb_node *stop)
-{
-	while (rb != stop) {
-		ITSTRUCT *node = rb_entry(rb, ITSTRUCT, ITRB);
-		ITTYPE subtree_last = IT(compute_subtree_last)(node);
-		if (node->ITSUBTREE == subtree_last)
-			break;
-		node->ITSUBTREE = subtree_last;
-		rb = rb_parent(&node->ITRB);
-	}
-}
-
-static inline void
-IT(augment_copy)(struct rb_node *rb_old, struct rb_node *rb_new)
-{
-	ITSTRUCT *old = rb_entry(rb_old, ITSTRUCT, ITRB);
-	ITSTRUCT *new = rb_entry(rb_new, ITSTRUCT, ITRB);
-
-	new->ITSUBTREE = old->ITSUBTREE;
-}
-
-static void IT(augment_rotate)(struct rb_node *rb_old, struct rb_node *rb_new)
-{
-	ITSTRUCT *old = rb_entry(rb_old, ITSTRUCT, ITRB);
-	ITSTRUCT *new = rb_entry(rb_new, ITSTRUCT, ITRB);
-
-	new->ITSUBTREE = old->ITSUBTREE;
-	old->ITSUBTREE = IT(compute_subtree_last)(old);
-}
-
-static const struct rb_augment_callbacks IT(augment_callbacks) = {
-	IT(augment_propagate), IT(augment_copy), IT(augment_rotate)
-};
-
-/* Insert / remove interval nodes from the tree */
-
-ITSTATIC void IT(insert)(ITSTRUCT *node, struct rb_root *root)
-{
-	struct rb_node **link = &root->rb_node, *rb_parent = NULL;
-	ITTYPE start = ITSTART(node), last = ITLAST(node);
-	ITSTRUCT *parent;
-
-	while (*link) {
-		rb_parent = *link;
-		parent = rb_entry(rb_parent, ITSTRUCT, ITRB);
-		if (parent->ITSUBTREE < last)
-			parent->ITSUBTREE = last;
-		if (start < ITSTART(parent))
-			link = &parent->ITRB.rb_left;
-		else
-			link = &parent->ITRB.rb_right;
-	}
-
-	node->ITSUBTREE = last;
-	rb_link_node(&node->ITRB, rb_parent, link);
-	rb_insert_augmented(&node->ITRB, root, &IT(augment_callbacks));
-}
-
-ITSTATIC void IT(remove)(ITSTRUCT *node, struct rb_root *root)
-{
-	rb_erase_augmented(&node->ITRB, root, &IT(augment_callbacks));
-}
-
-/*
- * Iterate over intervals intersecting [start;last]
- *
- * Note that a node's interval intersects [start;last] iff:
- *   Cond1: ITSTART(node) <= last
- * and
- *   Cond2: start <= ITLAST(node)
- */
-
-static ITSTRUCT *IT(subtree_search)(ITSTRUCT *node, ITTYPE start, ITTYPE last)
-{
-	while (true) {
-		/*
-		 * Loop invariant: start <= node->ITSUBTREE
-		 * (Cond2 is satisfied by one of the subtree nodes)
-		 */
-		if (node->ITRB.rb_left) {
-			ITSTRUCT *left = rb_entry(node->ITRB.rb_left,
-						  ITSTRUCT, ITRB);
-			if (start <= left->ITSUBTREE) {
-				/*
-				 * Some nodes in left subtree satisfy Cond2.
-				 * Iterate to find the leftmost such node N.
-				 * If it also satisfies Cond1, that's the match
-				 * we are looking for. Otherwise, there is no
-				 * matching interval as nodes to the right of N
-				 * can't satisfy Cond1 either.
-				 */
-				node = left;
-				continue;
-			}
-		}
-		if (ITSTART(node) <= last) {		/* Cond1 */
-			if (start <= ITLAST(node))	/* Cond2 */
-				return node;	/* node is leftmost match */
-			if (node->ITRB.rb_right) {
-				node = rb_entry(node->ITRB.rb_right,
-						ITSTRUCT, ITRB);
-				if (start <= node->ITSUBTREE)
-					continue;
-			}
-		}
-		return NULL;	/* No match */
-	}
-}
-
-ITSTATIC ITSTRUCT *IT(iter_first)(struct rb_root *root,
-				  ITTYPE start, ITTYPE last)
-{
-	ITSTRUCT *node;
-
-	if (!root->rb_node)
-		return NULL;
-	node = rb_entry(root->rb_node, ITSTRUCT, ITRB);
-	if (node->ITSUBTREE < start)
-		return NULL;
-	return IT(subtree_search)(node, start, last);
-}
-
-ITSTATIC ITSTRUCT *IT(iter_next)(ITSTRUCT *node, ITTYPE start, ITTYPE last)
-{
-	struct rb_node *rb = node->ITRB.rb_right, *prev;
-
-	while (true) {
-		/*
-		 * Loop invariants:
-		 *   Cond1: ITSTART(node) <= last
-		 *   rb == node->ITRB.rb_right
-		 *
-		 * First, search right subtree if suitable
-		 */
-		if (rb) {
-			ITSTRUCT *right = rb_entry(rb, ITSTRUCT, ITRB);
-			if (start <= right->ITSUBTREE)
-				return IT(subtree_search)(right, start, last);
-		}
-
-		/* Move up the tree until we come from a node's left child */
-		do {
-			rb = rb_parent(&node->ITRB);
-			if (!rb)
-				return NULL;
-			prev = &node->ITRB;
-			node = rb_entry(rb, ITSTRUCT, ITRB);
-			rb = node->ITRB.rb_right;
-		} while (prev == rb);
-
-		/* Check if the node intersects [start;last] */
-		if (last < ITSTART(node))		/* !Cond1 */
-			return NULL;
-		else if (start <= ITLAST(node))		/* Cond2 */
-			return node;
-	}
-}
diff --git a/include/linux/mm.h b/include/linux/mm.h
index dc504c7e9f84..38af0048037f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1336,11 +1336,11 @@ extern atomic_long_t mmap_pages_allocated;
 extern int nommu_shrink_inode_mappings(struct inode *, size_t, size_t);
 
 /* interval_tree.c */
-void vma_interval_tree_add(struct vm_area_struct *vma,
-			   struct vm_area_struct *old,
-			   struct address_space *mapping);
 void vma_interval_tree_insert(struct vm_area_struct *node,
 			      struct rb_root *root);
+void vma_interval_tree_insert_after(struct vm_area_struct *node,
+				    struct vm_area_struct *prev,
+				    struct rb_root *root);
 void vma_interval_tree_remove(struct vm_area_struct *node,
 			      struct rb_root *root);
 struct vm_area_struct *vma_interval_tree_iter_first(struct rb_root *root,
diff --git a/kernel/fork.c b/kernel/fork.c
index 1a5a355c54ca..4e064731971e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -425,7 +425,12 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 				mapping->i_mmap_writable++;
 			flush_dcache_mmap_lock(mapping);
 			/* insert tmp into the share list, just after mpnt */
-			vma_interval_tree_add(tmp, mpnt, mapping);
+			if (unlikely(tmp->vm_flags & VM_NONLINEAR))
+				vma_nonlinear_insert(tmp,
+						&mapping->i_mmap_nonlinear);
+			else
+				vma_interval_tree_insert_after(tmp, mpnt,
+							&mapping->i_mmap);
 			flush_dcache_mmap_unlock(mapping);
 			mutex_unlock(&mapping->i_mmap_mutex);
 		}
diff --git a/lib/interval_tree.c b/lib/interval_tree.c
index 77a793e0644b..e6eb406f2d65 100644
--- a/lib/interval_tree.c
+++ b/lib/interval_tree.c
@@ -1,13 +1,10 @@
 #include <linux/init.h>
 #include <linux/interval_tree.h>
+#include <linux/interval_tree_generic.h>
 
-#define ITSTRUCT   struct interval_tree_node
-#define ITRB       rb
-#define ITTYPE     unsigned long
-#define ITSUBTREE  __subtree_last
-#define ITSTART(n) ((n)->start)
-#define ITLAST(n)  ((n)->last)
-#define ITSTATIC
-#define ITPREFIX   interval_tree
+#define START(node) ((node)->start)
+#define LAST(node)  ((node)->last)
 
-#include <linux/interval_tree_tmpl.h>
+INTERVAL_TREE_DEFINE(struct interval_tree_node, rb,
+		     unsigned long, __subtree_last,
+		     START, LAST,, interval_tree)
diff --git a/mm/interval_tree.c b/mm/interval_tree.c
index 7dc565660e56..4ab7b9ec3a56 100644
--- a/mm/interval_tree.c
+++ b/mm/interval_tree.c
@@ -8,40 +8,38 @@
 
 #include <linux/mm.h>
 #include <linux/fs.h>
+#include <linux/interval_tree_generic.h>
 
-#define ITSTRUCT   struct vm_area_struct
-#define ITRB       shared.linear.rb
-#define ITTYPE     unsigned long
-#define ITSUBTREE  shared.linear.rb_subtree_last
-#define ITSTART(n) ((n)->vm_pgoff)
-#define ITLAST(n)  ((n)->vm_pgoff + \
-		    (((n)->vm_end - (n)->vm_start) >> PAGE_SHIFT) - 1)
-#define ITSTATIC
-#define ITPREFIX   vma_interval_tree
-
-#include <linux/interval_tree_tmpl.h>
-
-/* Insert old immediately after vma in the interval tree */
-void vma_interval_tree_add(struct vm_area_struct *vma,
-			   struct vm_area_struct *old,
-			   struct address_space *mapping)
+static inline unsigned long vma_start_pgoff(struct vm_area_struct *v)
+{
+	return v->vm_pgoff;
+}
+
+static inline unsigned long vma_last_pgoff(struct vm_area_struct *v)
+{
+	return v->vm_pgoff + ((v->vm_end - v->vm_start) >> PAGE_SHIFT) - 1;
+}
+
+INTERVAL_TREE_DEFINE(struct vm_area_struct, shared.linear.rb,
+		     unsigned long, shared.linear.rb_subtree_last,
+		     vma_start_pgoff, vma_last_pgoff,, vma_interval_tree)
+
+/* Insert node immediately after prev in the interval tree */
+void vma_interval_tree_insert_after(struct vm_area_struct *node,
+				    struct vm_area_struct *prev,
+				    struct rb_root *root)
 {
 	struct rb_node **link;
 	struct vm_area_struct *parent;
-	unsigned long last;
-
-	if (unlikely(vma->vm_flags & VM_NONLINEAR)) {
-		list_add(&vma->shared.nonlinear, &old->shared.nonlinear);
-		return;
-	}
+	unsigned long last = vma_last_pgoff(node);
 
-	last = ITLAST(vma);
+	VM_BUG_ON(vma_start_pgoff(node) != vma_start_pgoff(prev));
 
-	if (!old->shared.linear.rb.rb_right) {
-		parent = old;
-		link = &old->shared.linear.rb.rb_right;
+	if (!prev->shared.linear.rb.rb_right) {
+		parent = prev;
+		link = &prev->shared.linear.rb.rb_right;
 	} else {
-		parent = rb_entry(old->shared.linear.rb.rb_right,
+		parent = rb_entry(prev->shared.linear.rb.rb_right,
 				  struct vm_area_struct, shared.linear.rb);
 		if (parent->shared.linear.rb_subtree_last < last)
 			parent->shared.linear.rb_subtree_last = last;
@@ -54,8 +52,8 @@ void vma_interval_tree_add(struct vm_area_struct *vma,
 		link = &parent->shared.linear.rb.rb_left;
 	}
 
-	vma->shared.linear.rb_subtree_last = last;
-	rb_link_node(&vma->shared.linear.rb, &parent->shared.linear.rb, link);
-	rb_insert_augmented(&vma->shared.linear.rb, &mapping->i_mmap,
-			    &vma_interval_tree_augment_callbacks);
+	node->shared.linear.rb_subtree_last = last;
+	rb_link_node(&node->shared.linear.rb, &parent->shared.linear.rb, link);
+	rb_insert_augmented(&node->shared.linear.rb, root,
+			    &vma_interval_tree_augment);
 }
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect()
  2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 1/7] mm: interval tree updates Michel Lespinasse
@ 2012-09-04  9:20 ` Michel Lespinasse
  2012-09-04 14:27   ` Andrea Arcangeli
  2012-09-04  9:20 ` [PATCH 3/7] mm anon rmap: remove anon_vma_moveto_tail Michel Lespinasse
                   ` (4 subsequent siblings)
  6 siblings, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

This change fixes an anon_vma locking issue in the following situation:
- vma has no anon_vma
- next has an anon_vma
- vma is being shrunk / next is being expanded, due to an mprotect call

We need to take next's anon_vma lock to avoid races with rmap users
(such as page migration) while next is being expanded.

This change also removes an optimization which avoided taking anon_vma
lock during brk adjustments. We could probably make that optimization
work again, but the following anon rmap change would break it,
so I kept things as simple as possible here.

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 mm/mmap.c |   14 ++++++--------
 1 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index cebc346ba0db..5e64c7dfc090 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -570,14 +570,12 @@ again:			remove_next = 1 + (end > next->vm_end);
 
 	vma_adjust_trans_huge(vma, start, end, adjust_next);
 
-	/*
-	 * When changing only vma->vm_end, we don't really need anon_vma
-	 * lock. This is a fairly rare case by itself, but the anon_vma
-	 * lock may be shared between many sibling processes.  Skipping
-	 * the lock for brk adjustments makes a difference sometimes.
-	 */
-	if (vma->anon_vma && (importer || start != vma->vm_start)) {
-		anon_vma = vma->anon_vma;
+	anon_vma = vma->anon_vma;
+	if (!anon_vma && adjust_next)
+		anon_vma = next->anon_vma;
+	if (anon_vma) {
+		VM_BUG_ON(adjust_next && next->anon_vma &&
+			  anon_vma != next->anon_vma);
 		anon_vma_lock(anon_vma);
 	}
 
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* [PATCH 3/7] mm anon rmap: remove anon_vma_moveto_tail
  2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 1/7] mm: interval tree updates Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect() Michel Lespinasse
@ 2012-09-04  9:20 ` Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 4/7] mm anon rmap: replace same_anon_vma linked list with an interval tree Michel Lespinasse
                   ` (3 subsequent siblings)
  6 siblings, 0 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

mremap() had a clever optimization where move_ptes() did not take the
anon_vma lock to avoid a race with anon rmap users such as page migration.
Instead, the avc's were ordered in such a way that the origin vma was
always visited by rmap before the destination. This ordering and the use
of page table locks rmap usage safe. However, we want to replace the
use of linked lists in anon rmap with an interval tree, and this will
make it harder to impose such ordering as the interval tree will always
be sorted by the avc->vma->vm_pgoff value. For now, let's replace the
anon_vma_moveto_tail() ordering function with proper anon_vma locking
in move_ptes(). Once we have the anon interval tree in place, we will
re-introduce an optimization to avoid taking these locks in the most
common cases.

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 include/linux/rmap.h |    1 -
 mm/mmap.c            |    3 +--
 mm/mremap.c          |   14 +++++---------
 mm/rmap.c            |   45 ---------------------------------------------
 4 files changed, 6 insertions(+), 57 deletions(-)

diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 3fce545df394..7f32cec57e67 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -120,7 +120,6 @@ void anon_vma_init(void);	/* create anon_vma_cachep */
 int  anon_vma_prepare(struct vm_area_struct *);
 void unlink_anon_vmas(struct vm_area_struct *);
 int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
-void anon_vma_moveto_tail(struct vm_area_struct *);
 int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
 
 static inline void anon_vma_merge(struct vm_area_struct *vma,
diff --git a/mm/mmap.c b/mm/mmap.c
index 5e64c7dfc090..ea647255d763 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2397,8 +2397,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 			 */
 			VM_BUG_ON(faulted_in_anon_vma);
 			*vmap = new_vma;
-		} else
-			anon_vma_moveto_tail(new_vma);
+		}
 	} else {
 		new_vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
 		if (new_vma) {
diff --git a/mm/mremap.c b/mm/mremap.c
index 21fed202ddad..95fb2e024ced 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -74,6 +74,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		unsigned long new_addr)
 {
 	struct address_space *mapping = NULL;
+	struct anon_vma *anon_vma = vma->anon_vma;
 	struct mm_struct *mm = vma->vm_mm;
 	pte_t *old_pte, *new_pte, pte;
 	spinlock_t *old_ptl, *new_ptl;
@@ -88,6 +89,8 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		mapping = vma->vm_file->f_mapping;
 		mutex_lock(&mapping->i_mmap_mutex);
 	}
+	if (anon_vma)
+		anon_vma_lock(anon_vma);
 
 	/*
 	 * We don't have to worry about the ordering of src and dst
@@ -114,6 +117,8 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		spin_unlock(new_ptl);
 	pte_unmap(new_pte - 1);
 	pte_unmap_unlock(old_pte - 1, old_ptl);
+	if (anon_vma)
+		anon_vma_unlock(anon_vma);
 	if (mapping)
 		mutex_unlock(&mapping->i_mmap_mutex);
 }
@@ -221,15 +226,6 @@ static unsigned long move_vma(struct vm_area_struct *vma,
 	moved_len = move_page_tables(vma, old_addr, new_vma, new_addr, old_len);
 	if (moved_len < old_len) {
 		/*
-		 * Before moving the page tables from the new vma to
-		 * the old vma, we need to be sure the old vma is
-		 * queued after new vma in the same_anon_vma list to
-		 * prevent SMP races with rmap_walk (that could lead
-		 * rmap_walk to miss some page table).
-		 */
-		anon_vma_moveto_tail(vma);
-
-		/*
 		 * On error, move entries back from new area to old,
 		 * which will succeed since page tables still there,
 		 * and then proceed to unmap new area instead of old.
diff --git a/mm/rmap.c b/mm/rmap.c
index 7b5b51d25fc5..8cbd62fde0f1 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -269,51 +269,6 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
 }
 
 /*
- * Some rmap walk that needs to find all ptes/hugepmds without false
- * negatives (like migrate and split_huge_page) running concurrent
- * with operations that copy or move pagetables (like mremap() and
- * fork()) to be safe. They depend on the anon_vma "same_anon_vma"
- * list to be in a certain order: the dst_vma must be placed after the
- * src_vma in the list. This is always guaranteed by fork() but
- * mremap() needs to call this function to enforce it in case the
- * dst_vma isn't newly allocated and chained with the anon_vma_clone()
- * function but just an extension of a pre-existing vma through
- * vma_merge.
- *
- * NOTE: the same_anon_vma list can still be changed by other
- * processes while mremap runs because mremap doesn't hold the
- * anon_vma mutex to prevent modifications to the list while it
- * runs. All we need to enforce is that the relative order of this
- * process vmas isn't changing (we don't care about other vmas
- * order). Each vma corresponds to an anon_vma_chain structure so
- * there's no risk that other processes calling anon_vma_moveto_tail()
- * and changing the same_anon_vma list under mremap() will screw with
- * the relative order of this process vmas in the list, because we
- * they can't alter the order of any vma that belongs to this
- * process. And there can't be another anon_vma_moveto_tail() running
- * concurrently with mremap() coming from this process because we hold
- * the mmap_sem for the whole mremap(). fork() ordering dependency
- * also shouldn't be affected because fork() only cares that the
- * parent vmas are placed in the list before the child vmas and
- * anon_vma_moveto_tail() won't reorder vmas from either the fork()
- * parent or child.
- */
-void anon_vma_moveto_tail(struct vm_area_struct *dst)
-{
-	struct anon_vma_chain *pavc;
-	struct anon_vma *root = NULL;
-
-	list_for_each_entry_reverse(pavc, &dst->anon_vma_chain, same_vma) {
-		struct anon_vma *anon_vma = pavc->anon_vma;
-		VM_BUG_ON(pavc->vma != dst);
-		root = lock_anon_vma_root(root, anon_vma);
-		list_del(&pavc->same_anon_vma);
-		list_add_tail(&pavc->same_anon_vma, &anon_vma->head);
-	}
-	unlock_anon_vma_root(root);
-}
-
-/*
  * Attach vma to its own anon_vma, as well as to the anon_vmas that
  * the corresponding VMA in the parent process is attached to.
  * Returns 0 on success, non-zero on failure.
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* [PATCH 4/7] mm anon rmap: replace same_anon_vma linked list with an interval tree.
  2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
                   ` (2 preceding siblings ...)
  2012-09-04  9:20 ` [PATCH 3/7] mm anon rmap: remove anon_vma_moveto_tail Michel Lespinasse
@ 2012-09-04  9:20 ` Michel Lespinasse
  2012-09-05  0:51   ` Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 5/7] mm rmap: remove vma_address check for address inside vma Michel Lespinasse
                   ` (2 subsequent siblings)
  6 siblings, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

When a large VMA (anon or private file mapping) is first touched, which
will populate its anon_vma field, and then split into many regions through
the use of mprotect(), the original anon_vma ends up linking all of the
vmas on a linked list. This can cause rmap to become inefficient, as we
have to walk potentially thousands of irrelevent vmas before finding the
one a given anon page might fall into.

By replacing the same_anon_vma linked list with an interval tree
(where each avc's interval is determined by its vma's start and
last pgoffs), we can make rmap efficient for this use case again.

While the change is large, all of its pieces are fairly simple.

Most places that were walking the same_anon_vma list were looking for
a known pgoff, so they can just use the anon_vma_interval_tree_foreach()
interval tree iterator instead. The exception here is ksm, where the
page's index is not known. It would probably be possible to rework ksm
so that the index would be known, but for now I have decided to keep things
simple and just walk the entirety of the interval tree there.

When updating vma's that already have an anon_vma assigned, we must take
care to re-index the corresponding avc's on their interval tree. This is
done through the use of anon_vma_interval_tree_pre_update_vma() and
anon_vma_interval_tree_post_update_vma(), which remove the avc's from
their interval tree before the update and re-insert them after the update.
The anon_vma stays locked during the update, so there is no chance that
rmap would miss the vmas that are being updated.

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 include/linux/mm.h   |   14 ++++++++++++
 include/linux/rmap.h |   11 +++++----
 mm/huge_memory.c     |    5 ++-
 mm/interval_tree.c   |   14 ++++++++++++
 mm/ksm.c             |    9 +++++--
 mm/memory-failure.c  |    5 +++-
 mm/mmap.c            |   57 +++++++++++++++++++++++++++++++++++++++++++------
 mm/rmap.c            |   24 ++++++++++----------
 8 files changed, 109 insertions(+), 30 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 38af0048037f..19d63ec2cbbb 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -20,6 +20,7 @@
 
 struct mempolicy;
 struct anon_vma;
+struct anon_vma_chain;
 struct file_ra_state;
 struct user_struct;
 struct writeback_control;
@@ -1358,6 +1359,19 @@ static inline void vma_nonlinear_insert(struct vm_area_struct *vma,
 	list_add_tail(&vma->shared.nonlinear, list);
 }
 
+void anon_vma_interval_tree_insert(struct anon_vma_chain *node,
+				   struct rb_root *root);
+void anon_vma_interval_tree_remove(struct anon_vma_chain *node,
+				   struct rb_root *root);
+struct anon_vma_chain *anon_vma_interval_tree_iter_first(
+	struct rb_root *root, unsigned long start, unsigned long last);
+struct anon_vma_chain *anon_vma_interval_tree_iter_next(
+	struct anon_vma_chain *node, unsigned long start, unsigned long last);
+
+#define anon_vma_interval_tree_foreach(avc, root, start, last)		 \
+	for (avc = anon_vma_interval_tree_iter_first(root, start, last); \
+	     avc; avc = anon_vma_interval_tree_iter_next(avc, start, last))
+
 /* mmap.c */
 extern int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin);
 extern int vma_adjust(struct vm_area_struct *vma, unsigned long start,
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 7f32cec57e67..dce44f7d3ed8 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -37,14 +37,14 @@ struct anon_vma {
 	atomic_t refcount;
 
 	/*
-	 * NOTE: the LSB of the head.next is set by
+	 * NOTE: the LSB of the rb_root.rb_node is set by
 	 * mm_take_all_locks() _after_ taking the above lock. So the
-	 * head must only be read/written after taking the above lock
+	 * rb_root must only be read/written after taking the above lock
 	 * to be sure to see a valid next pointer. The LSB bit itself
 	 * is serialized by a system wide lock only visible to
 	 * mm_take_all_locks() (mm_all_locks_mutex).
 	 */
-	struct list_head head;	/* Chain of private "related" vmas */
+	struct rb_root rb_root;	/* Interval tree of private "related" vmas */
 };
 
 /*
@@ -57,14 +57,15 @@ struct anon_vma {
  * with a VMA, or the VMAs associated with an anon_vma.
  * The "same_vma" list contains the anon_vma_chains linking
  * all the anon_vmas associated with this VMA.
- * The "same_anon_vma" list contains the anon_vma_chains
+ * The "rb" field indexes on an interval tree the anon_vma_chains
  * which link all the VMAs associated with this anon_vma.
  */
 struct anon_vma_chain {
 	struct vm_area_struct *vma;
 	struct anon_vma *anon_vma;
 	struct list_head same_vma;   /* locked by mmap_sem & page_table_lock */
-	struct list_head same_anon_vma;	/* locked by anon_vma->mutex */
+	struct rb_node rb;			/* locked by anon_vma->mutex */
+	unsigned long rb_subtree_last;
 };
 
 #ifdef CONFIG_MMU
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 57c4b9309015..fe119cb71b41 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1421,13 +1421,14 @@ static void __split_huge_page(struct page *page,
 			      struct anon_vma *anon_vma)
 {
 	int mapcount, mapcount2;
+	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct anon_vma_chain *avc;
 
 	BUG_ON(!PageHead(page));
 	BUG_ON(PageTail(page));
 
 	mapcount = 0;
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long addr = vma_address(page, vma);
 		BUG_ON(is_vma_temporary_stack(vma));
@@ -1453,7 +1454,7 @@ static void __split_huge_page(struct page *page,
 	__split_huge_page_refcount(page);
 
 	mapcount2 = 0;
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long addr = vma_address(page, vma);
 		BUG_ON(is_vma_temporary_stack(vma));
diff --git a/mm/interval_tree.c b/mm/interval_tree.c
index 4ab7b9ec3a56..f7c72cd35e1d 100644
--- a/mm/interval_tree.c
+++ b/mm/interval_tree.c
@@ -8,6 +8,7 @@
 
 #include <linux/mm.h>
 #include <linux/fs.h>
+#include <linux/rmap.h>
 #include <linux/interval_tree_generic.h>
 
 static inline unsigned long vma_start_pgoff(struct vm_area_struct *v)
@@ -57,3 +58,16 @@ void vma_interval_tree_insert_after(struct vm_area_struct *node,
 	rb_insert_augmented(&node->shared.linear.rb, root,
 			    &vma_interval_tree_augment);
 }
+
+static inline unsigned long avc_start_pgoff(struct anon_vma_chain *avc)
+{
+	return vma_start_pgoff(avc->vma);
+}
+
+static inline unsigned long avc_last_pgoff(struct anon_vma_chain *avc)
+{
+	return vma_last_pgoff(avc->vma);
+}
+
+INTERVAL_TREE_DEFINE(struct anon_vma_chain, rb, unsigned long, rb_subtree_last,
+		     avc_start_pgoff, avc_last_pgoff,, anon_vma_interval_tree)
diff --git a/mm/ksm.c b/mm/ksm.c
index 47c885368890..4b7cda74c2b2 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1614,7 +1614,8 @@ again:
 		struct vm_area_struct *vma;
 
 		anon_vma_lock(anon_vma);
-		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
+					       0, ULONG_MAX) {
 			vma = vmac->vma;
 			if (rmap_item->address < vma->vm_start ||
 			    rmap_item->address >= vma->vm_end)
@@ -1667,7 +1668,8 @@ again:
 		struct vm_area_struct *vma;
 
 		anon_vma_lock(anon_vma);
-		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
+					       0, ULONG_MAX) {
 			vma = vmac->vma;
 			if (rmap_item->address < vma->vm_start ||
 			    rmap_item->address >= vma->vm_end)
@@ -1719,7 +1721,8 @@ again:
 		struct vm_area_struct *vma;
 
 		anon_vma_lock(anon_vma);
-		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
+					       0, ULONG_MAX) {
 			vma = vmac->vma;
 			if (rmap_item->address < vma->vm_start ||
 			    rmap_item->address >= vma->vm_end)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 65d5e8d43633..c1b6841c13b6 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -400,18 +400,21 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill,
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
 	struct anon_vma *av;
+	pgoff_t pgoff;
 
 	av = page_lock_anon_vma(page);
 	if (av == NULL)	/* Not actually mapped anymore */
 		return;
 
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	read_lock(&tasklist_lock);
 	for_each_process (tsk) {
 		struct anon_vma_chain *vmac;
 
 		if (!task_early_kill(tsk))
 			continue;
-		list_for_each_entry(vmac, &av->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &av->rb_root,
+					       pgoff, pgoff) {
 			vma = vmac->vma;
 			if (!page_mapped_in_vma(page, vma))
 				continue;
diff --git a/mm/mmap.c b/mm/mmap.c
index ea647255d763..1a6afdb5194a 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -356,6 +356,38 @@ void validate_mm(struct mm_struct *mm)
 #define validate_mm(mm) do { } while (0)
 #endif
 
+/*
+ * vma has some anon_vma assigned, and is already inserted on that
+ * anon_vma's interval trees.
+ *
+ * Before updating the vma's vm_start / vm_end / vm_pgoff fields, the
+ * vma must be removed from the anon_vma's interval trees using
+ * anon_vma_interval_tree_pre_update_vma().
+ *
+ * After the update, the vma will be reinserted using
+ * anon_vma_interval_tree_post_update_vma().
+ *
+ * The entire update must be protected by exclusive mmap_sem and by
+ * the root anon_vma's mutex.
+ */
+static inline void
+anon_vma_interval_tree_pre_update_vma(struct vm_area_struct *vma)
+{
+	struct anon_vma_chain *avc;
+
+	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
+		anon_vma_interval_tree_remove(avc, &avc->anon_vma->rb_root);
+}
+
+static inline void
+anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma)
+{
+	struct anon_vma_chain *avc;
+
+	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
+		anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root);
+}
+
 static struct vm_area_struct *
 find_vma_prepare(struct mm_struct *mm, unsigned long addr,
 		struct vm_area_struct **pprev, struct rb_node ***rb_link,
@@ -577,6 +609,9 @@ again:			remove_next = 1 + (end > next->vm_end);
 		VM_BUG_ON(adjust_next && next->anon_vma &&
 			  anon_vma != next->anon_vma);
 		anon_vma_lock(anon_vma);
+		anon_vma_interval_tree_pre_update_vma(vma);
+		if (adjust_next)
+			anon_vma_interval_tree_pre_update_vma(next);
 	}
 
 	if (root) {
@@ -618,8 +653,12 @@ again:			remove_next = 1 + (end > next->vm_end);
 		__insert_vm_struct(mm, insert);
 	}
 
-	if (anon_vma)
+	if (anon_vma) {
+		anon_vma_interval_tree_post_update_vma(vma);
+		if (adjust_next)
+			anon_vma_interval_tree_post_update_vma(next);
 		anon_vma_unlock(anon_vma);
+	}
 	if (mapping)
 		mutex_unlock(&mapping->i_mmap_mutex);
 
@@ -1757,7 +1796,9 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 		if (vma->vm_pgoff + (size >> PAGE_SHIFT) >= vma->vm_pgoff) {
 			error = acct_stack_growth(vma, size, grow);
 			if (!error) {
+				anon_vma_interval_tree_pre_update_vma(vma);
 				vma->vm_end = address;
+				anon_vma_interval_tree_post_update_vma(vma);
 				perf_event_mmap(vma);
 			}
 		}
@@ -1807,8 +1848,10 @@ int expand_downwards(struct vm_area_struct *vma,
 		if (grow <= vma->vm_pgoff) {
 			error = acct_stack_growth(vma, size, grow);
 			if (!error) {
+				anon_vma_interval_tree_pre_update_vma(vma);
 				vma->vm_start = address;
 				vma->vm_pgoff -= grow;
+				anon_vma_interval_tree_post_update_vma(vma);
 				perf_event_mmap(vma);
 			}
 		}
@@ -2541,7 +2584,7 @@ static DEFINE_MUTEX(mm_all_locks_mutex);
 
 static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
 {
-	if (!test_bit(0, (unsigned long *) &anon_vma->root->head.next)) {
+	if (!test_bit(0, (unsigned long *) &anon_vma->root->rb_root.rb_node)) {
 		/*
 		 * The LSB of head.next can't change from under us
 		 * because we hold the mm_all_locks_mutex.
@@ -2557,7 +2600,7 @@ static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
 		 * anon_vma->root->mutex.
 		 */
 		if (__test_and_set_bit(0, (unsigned long *)
-				       &anon_vma->root->head.next))
+				       &anon_vma->root->rb_root.rb_node))
 			BUG();
 	}
 }
@@ -2598,7 +2641,7 @@ static void vm_lock_mapping(struct mm_struct *mm, struct address_space *mapping)
  * A single task can't take more than one mm_take_all_locks() in a row
  * or it would deadlock.
  *
- * The LSB in anon_vma->head.next and the AS_MM_ALL_LOCKS bitflag in
+ * The LSB in anon_vma->rb_root.rb_node and the AS_MM_ALL_LOCKS bitflag in
  * mapping->flags avoid to take the same lock twice, if more than one
  * vma in this mm is backed by the same anon_vma or address_space.
  *
@@ -2645,13 +2688,13 @@ out_unlock:
 
 static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
 {
-	if (test_bit(0, (unsigned long *) &anon_vma->root->head.next)) {
+	if (test_bit(0, (unsigned long *) &anon_vma->root->rb_root.rb_node)) {
 		/*
 		 * The LSB of head.next can't change to 0 from under
 		 * us because we hold the mm_all_locks_mutex.
 		 *
 		 * We must however clear the bitflag before unlocking
-		 * the vma so the users using the anon_vma->head will
+		 * the vma so the users using the anon_vma->rb_root will
 		 * never see our bitflag.
 		 *
 		 * No need of atomic instructions here, head.next
@@ -2659,7 +2702,7 @@ static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
 		 * anon_vma->root->mutex.
 		 */
 		if (!__test_and_clear_bit(0, (unsigned long *)
-					  &anon_vma->root->head.next))
+					  &anon_vma->root->rb_root.rb_node))
 			BUG();
 		anon_vma_unlock(anon_vma);
 	}
diff --git a/mm/rmap.c b/mm/rmap.c
index 8cbd62fde0f1..9c61bf387fd1 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -127,12 +127,7 @@ static void anon_vma_chain_link(struct vm_area_struct *vma,
 	avc->vma = vma;
 	avc->anon_vma = anon_vma;
 	list_add(&avc->same_vma, &vma->anon_vma_chain);
-
-	/*
-	 * It's critical to add new vmas to the tail of the anon_vma,
-	 * see comment in huge_memory.c:__split_huge_page().
-	 */
-	list_add_tail(&avc->same_anon_vma, &anon_vma->head);
+	anon_vma_interval_tree_insert(avc, &anon_vma->rb_root);
 }
 
 /**
@@ -336,13 +331,13 @@ void unlink_anon_vmas(struct vm_area_struct *vma)
 		struct anon_vma *anon_vma = avc->anon_vma;
 
 		root = lock_anon_vma_root(root, anon_vma);
-		list_del(&avc->same_anon_vma);
+		anon_vma_interval_tree_remove(avc, &anon_vma->rb_root);
 
 		/*
 		 * Leave empty anon_vmas on the list - we'll need
 		 * to free them outside the lock.
 		 */
-		if (list_empty(&anon_vma->head))
+		if (RB_EMPTY_ROOT(&anon_vma->rb_root))
 			continue;
 
 		list_del(&avc->same_vma);
@@ -371,7 +366,7 @@ static void anon_vma_ctor(void *data)
 
 	mutex_init(&anon_vma->mutex);
 	atomic_set(&anon_vma->refcount, 0);
-	INIT_LIST_HEAD(&anon_vma->head);
+	anon_vma->rb_root = RB_ROOT;
 }
 
 void __init anon_vma_init(void)
@@ -724,6 +719,7 @@ static int page_referenced_anon(struct page *page,
 {
 	unsigned int mapcount;
 	struct anon_vma *anon_vma;
+	pgoff_t pgoff;
 	struct anon_vma_chain *avc;
 	int referenced = 0;
 
@@ -732,7 +728,8 @@ static int page_referenced_anon(struct page *page,
 		return referenced;
 
 	mapcount = page_mapcount(page);
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address = vma_address(page, vma);
 		if (address == -EFAULT)
@@ -1445,6 +1442,7 @@ bool is_vma_temporary_stack(struct vm_area_struct *vma)
 static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
 {
 	struct anon_vma *anon_vma;
+	pgoff_t pgoff;
 	struct anon_vma_chain *avc;
 	int ret = SWAP_AGAIN;
 
@@ -1452,7 +1450,8 @@ static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
 	if (!anon_vma)
 		return ret;
 
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address;
 
@@ -1668,6 +1667,7 @@ static int rmap_walk_anon(struct page *page, int (*rmap_one)(struct page *,
 		struct vm_area_struct *, unsigned long, void *), void *arg)
 {
 	struct anon_vma *anon_vma;
+	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct anon_vma_chain *avc;
 	int ret = SWAP_AGAIN;
 
@@ -1681,7 +1681,7 @@ static int rmap_walk_anon(struct page *page, int (*rmap_one)(struct page *,
 	if (!anon_vma)
 		return ret;
 	anon_vma_lock(anon_vma);
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address = vma_address(page, vma);
 		if (address == -EFAULT)
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* [PATCH 5/7] mm rmap: remove vma_address check for address inside vma
  2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
                   ` (3 preceding siblings ...)
  2012-09-04  9:20 ` [PATCH 4/7] mm anon rmap: replace same_anon_vma linked list with an interval tree Michel Lespinasse
@ 2012-09-04  9:20 ` Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option Michel Lespinasse
  2012-09-04  9:20 ` [PATCH 7/7] mm: avoid taking rmap locks in move_ptes() Michel Lespinasse
  6 siblings, 0 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

In file and anon rmap, we use interval trees to find potentially relevant
vmas and then call vma_address() to find the virtual address the given
page might be found at in these vmas. vma_address() used to include a
check that the returned address falls within the limits of the vma, but
this check isn't necessary now that we always use interval trees in rmap:
the interval tree just doesn't return any vmas which this check would find
to be irrelevant. As a result, we can replace the use of -EFAULT error code
(which then needed to be checked in every call site) with a VM_BUG_ON().

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 mm/huge_memory.c |    4 ----
 mm/rmap.c        |   48 +++++++++++++++++++++---------------------------
 2 files changed, 21 insertions(+), 31 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index fe119cb71b41..91b65f962320 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1432,8 +1432,6 @@ static void __split_huge_page(struct page *page,
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long addr = vma_address(page, vma);
 		BUG_ON(is_vma_temporary_stack(vma));
-		if (addr == -EFAULT)
-			continue;
 		mapcount += __split_huge_page_splitting(page, vma, addr);
 	}
 	/*
@@ -1458,8 +1456,6 @@ static void __split_huge_page(struct page *page,
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long addr = vma_address(page, vma);
 		BUG_ON(is_vma_temporary_stack(vma));
-		if (addr == -EFAULT)
-			continue;
 		mapcount2 += __split_huge_page_map(page, vma, addr);
 	}
 	if (mapcount != mapcount2)
diff --git a/mm/rmap.c b/mm/rmap.c
index 9c61bf387fd1..28777412de62 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -510,22 +510,26 @@ void page_unlock_anon_vma(struct anon_vma *anon_vma)
 
 /*
  * At what user virtual address is page expected in @vma?
- * Returns virtual address or -EFAULT if page's index/offset is not
- * within the range mapped the @vma.
  */
-inline unsigned long
-vma_address(struct page *page, struct vm_area_struct *vma)
+static inline unsigned long
+__vma_address(struct page *page, struct vm_area_struct *vma)
 {
 	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
-	unsigned long address;
 
 	if (unlikely(is_vm_hugetlb_page(vma)))
 		pgoff = page->index << huge_page_order(page_hstate(page));
-	address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
-	if (unlikely(address < vma->vm_start || address >= vma->vm_end)) {
-		/* page should be within @vma mapping range */
-		return -EFAULT;
-	}
+
+	return vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
+}
+
+inline unsigned long
+vma_address(struct page *page, struct vm_area_struct *vma)
+{
+	unsigned long address = __vma_address(page, vma);
+
+	/* page should be within @vma mapping range */
+	VM_BUG_ON(address < vma->vm_start || address >= vma->vm_end);
+
 	return address;
 }
 
@@ -535,6 +539,7 @@ vma_address(struct page *page, struct vm_area_struct *vma)
  */
 unsigned long page_address_in_vma(struct page *page, struct vm_area_struct *vma)
 {
+	unsigned long address;
 	if (PageAnon(page)) {
 		struct anon_vma *page__anon_vma = page_anon_vma(page);
 		/*
@@ -550,7 +555,10 @@ unsigned long page_address_in_vma(struct page *page, struct vm_area_struct *vma)
 			return -EFAULT;
 	} else
 		return -EFAULT;
-	return vma_address(page, vma);
+	address = __vma_address(page, vma);
+	if (unlikely(address < vma->vm_start || address >= vma->vm_end))
+		return -EFAULT;
+	return address;
 }
 
 /*
@@ -624,8 +632,8 @@ int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma)
 	pte_t *pte;
 	spinlock_t *ptl;
 
-	address = vma_address(page, vma);
-	if (address == -EFAULT)		/* out of vma range */
+	address = __vma_address(page, vma);
+	if (unlikely(address < vma->vm_start || address >= vma->vm_end))
 		return 0;
 	pte = page_check_address(page, vma->vm_mm, address, &ptl, 1);
 	if (!pte)			/* the page is not in this mm */
@@ -732,8 +740,6 @@ static int page_referenced_anon(struct page *page,
 	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address = vma_address(page, vma);
-		if (address == -EFAULT)
-			continue;
 		/*
 		 * If we are reclaiming on behalf of a cgroup, skip
 		 * counting on behalf of references from different
@@ -799,8 +805,6 @@ static int page_referenced_file(struct page *page,
 
 	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		unsigned long address = vma_address(page, vma);
-		if (address == -EFAULT)
-			continue;
 		/*
 		 * If we are reclaiming on behalf of a cgroup, skip
 		 * counting on behalf of references from different
@@ -904,8 +908,6 @@ static int page_mkclean_file(struct address_space *mapping, struct page *page)
 	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		if (vma->vm_flags & VM_SHARED) {
 			unsigned long address = vma_address(page, vma);
-			if (address == -EFAULT)
-				continue;
 			ret += page_mkclean_one(page, vma, address);
 		}
 	}
@@ -1468,8 +1470,6 @@ static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
 			continue;
 
 		address = vma_address(page, vma);
-		if (address == -EFAULT)
-			continue;
 		ret = try_to_unmap_one(page, vma, address, flags);
 		if (ret != SWAP_AGAIN || !page_mapped(page))
 			break;
@@ -1508,8 +1508,6 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
 	mutex_lock(&mapping->i_mmap_mutex);
 	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		unsigned long address = vma_address(page, vma);
-		if (address == -EFAULT)
-			continue;
 		ret = try_to_unmap_one(page, vma, address, flags);
 		if (ret != SWAP_AGAIN || !page_mapped(page))
 			goto out;
@@ -1684,8 +1682,6 @@ static int rmap_walk_anon(struct page *page, int (*rmap_one)(struct page *,
 	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address = vma_address(page, vma);
-		if (address == -EFAULT)
-			continue;
 		ret = rmap_one(page, vma, address, arg);
 		if (ret != SWAP_AGAIN)
 			break;
@@ -1707,8 +1703,6 @@ static int rmap_walk_file(struct page *page, int (*rmap_one)(struct page *,
 	mutex_lock(&mapping->i_mmap_mutex);
 	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		unsigned long address = vma_address(page, vma);
-		if (address == -EFAULT)
-			continue;
 		ret = rmap_one(page, vma, address, arg);
 		if (ret != SWAP_AGAIN)
 			break;
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
                   ` (4 preceding siblings ...)
  2012-09-04  9:20 ` [PATCH 5/7] mm rmap: remove vma_address check for address inside vma Michel Lespinasse
@ 2012-09-04  9:20 ` Michel Lespinasse
  2012-09-14 22:14   ` Sasha Levin
  2012-09-04  9:20 ` [PATCH 7/7] mm: avoid taking rmap locks in move_ptes() Michel Lespinasse
  6 siblings, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

Add a CONFIG_DEBUG_VM_RB build option for the previously existing
DEBUG_MM_RB code. Now that Andi Kleen modified it to avoid using
recursive algorithms, we can expose it a bit more.

Also extend this code to validate_mm() after stack expansion, and to
check that the vma's start and last pgoffs have not changed since the
nodes were inserted on the anon vma interval tree (as it is important
that the nodes be reindexed after each such update).

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 include/linux/mm.h   |    3 +++
 include/linux/rmap.h |    3 +++
 lib/Kconfig.debug    |    9 +++++++++
 mm/interval_tree.c   |   41 ++++++++++++++++++++++++++++++++++++++++-
 mm/mmap.c            |   19 +++++++++----------
 5 files changed, 64 insertions(+), 11 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 19d63ec2cbbb..1a2b1a44bd4e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1367,6 +1367,9 @@ struct anon_vma_chain *anon_vma_interval_tree_iter_first(
 	struct rb_root *root, unsigned long start, unsigned long last);
 struct anon_vma_chain *anon_vma_interval_tree_iter_next(
 	struct anon_vma_chain *node, unsigned long start, unsigned long last);
+#ifdef CONFIG_DEBUG_VM_RB
+void anon_vma_interval_tree_verify(struct anon_vma_chain *node);
+#endif
 
 #define anon_vma_interval_tree_foreach(avc, root, start, last)		 \
 	for (avc = anon_vma_interval_tree_iter_first(root, start, last); \
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index dce44f7d3ed8..b2cce644ffc7 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -66,6 +66,9 @@ struct anon_vma_chain {
 	struct list_head same_vma;   /* locked by mmap_sem & page_table_lock */
 	struct rb_node rb;			/* locked by anon_vma->mutex */
 	unsigned long rb_subtree_last;
+#ifdef CONFIG_DEBUG_VM_RB
+	unsigned long cached_vma_start, cached_vma_last;
+#endif
 };
 
 #ifdef CONFIG_MMU
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index eba4b0961187..d261b4555dc5 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -781,6 +781,15 @@ config DEBUG_VM
 
 	  If unsure, say N.
 
+config DEBUG_VM_RB
+	bool "Debug VM red-black trees"
+	depends on DEBUG_VM
+	help
+	  Enable this to turn on more extended checks in the virtual-memory
+	  system that may impact performance.
+
+	  If unsure, say N.
+
 config DEBUG_VIRTUAL
 	bool "Debug VM translations"
 	depends on DEBUG_KERNEL && X86
diff --git a/mm/interval_tree.c b/mm/interval_tree.c
index f7c72cd35e1d..4a5822a586e6 100644
--- a/mm/interval_tree.c
+++ b/mm/interval_tree.c
@@ -70,4 +70,43 @@ static inline unsigned long avc_last_pgoff(struct anon_vma_chain *avc)
 }
 
 INTERVAL_TREE_DEFINE(struct anon_vma_chain, rb, unsigned long, rb_subtree_last,
-		     avc_start_pgoff, avc_last_pgoff,, anon_vma_interval_tree)
+		     avc_start_pgoff, avc_last_pgoff,
+		     static inline, __anon_vma_interval_tree)
+
+void anon_vma_interval_tree_insert(struct anon_vma_chain *node,
+				   struct rb_root *root)
+{
+#ifdef CONFIG_DEBUG_VM_RB
+	node->cached_vma_start = avc_start_pgoff(node);
+	node->cached_vma_last = avc_last_pgoff(node);
+#endif
+	__anon_vma_interval_tree_insert(node, root);
+}
+
+void anon_vma_interval_tree_remove(struct anon_vma_chain *node,
+				   struct rb_root *root)
+{
+	__anon_vma_interval_tree_remove(node, root);
+}
+
+struct anon_vma_chain *
+anon_vma_interval_tree_iter_first(struct rb_root *root,
+				  unsigned long first, unsigned long last)
+{
+	return __anon_vma_interval_tree_iter_first(root, first, last);
+}
+
+struct anon_vma_chain *
+anon_vma_interval_tree_iter_next(struct anon_vma_chain *node,
+				 unsigned long first, unsigned long last)
+{
+	return __anon_vma_interval_tree_iter_next(node, first, last);
+}
+
+#ifdef CONFIG_DEBUG_VM_RB
+void anon_vma_interval_tree_verify(struct anon_vma_chain *node)
+{
+	WARN_ON_ONCE(node->cached_vma_start != avc_start_pgoff(node));
+	WARN_ON_ONCE(node->cached_vma_last != avc_last_pgoff(node));
+}
+#endif
diff --git a/mm/mmap.c b/mm/mmap.c
index 1a6afdb5194a..884bda4cd3ea 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -51,12 +51,6 @@ static void unmap_region(struct mm_struct *mm,
 		struct vm_area_struct *vma, struct vm_area_struct *prev,
 		unsigned long start, unsigned long end);
 
-/*
- * WARNING: the debugging will use recursive algorithms so never enable this
- * unless you know what you are doing.
- */
-#undef DEBUG_MM_RB
-
 /* description of effects of mapping type and prot in current implementation.
  * this is due to the limited x86 page protection hardware.  The expected
  * behavior is in parens:
@@ -306,7 +300,7 @@ out:
 	return retval;
 }
 
-#ifdef DEBUG_MM_RB
+#ifdef CONFIG_DEBUG_VM_RB
 static int browse_rb(struct rb_root *root)
 {
 	int i = 0, j;
@@ -340,9 +334,12 @@ void validate_mm(struct mm_struct *mm)
 {
 	int bug = 0;
 	int i = 0;
-	struct vm_area_struct *tmp = mm->mmap;
-	while (tmp) {
-		tmp = tmp->vm_next;
+	struct vm_area_struct *vma = mm->mmap;
+	while (vma) {
+		struct anon_vma_chain *avc;
+		list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
+			anon_vma_interval_tree_verify(avc);
+		vma = vma->vm_next;
 		i++;
 	}
 	if (i != mm->map_count)
@@ -1805,6 +1802,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 	}
 	vma_unlock_anon_vma(vma);
 	khugepaged_enter_vma_merge(vma);
+	validate_mm(vma->vm_mm);
 	return error;
 }
 #endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */
@@ -1858,6 +1856,7 @@ int expand_downwards(struct vm_area_struct *vma,
 	}
 	vma_unlock_anon_vma(vma);
 	khugepaged_enter_vma_merge(vma);
+	validate_mm(vma->vm_mm);
 	return error;
 }
 
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* [PATCH 7/7] mm: avoid taking rmap locks in move_ptes()
  2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
                   ` (5 preceding siblings ...)
  2012-09-04  9:20 ` [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option Michel Lespinasse
@ 2012-09-04  9:20 ` Michel Lespinasse
  6 siblings, 0 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04  9:20 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

During mremap(), the destination VMA is generally placed after the
original vma in rmap traversal order: in move_vma(), we always have
new_pgoff >= vma->vm_pgoff, and as a result new_vma->vm_pgoff >=
vma->vm_pgoff unless vma_merge() merged the new vma with an adjacent
one.

When the destination VMA is placed after the original in rmap
traversal order, we can avoid taking the rmap locks in move_ptes().

Essentially, this reintroduces the optimization that had been disabled
in "mm anon rmap: remove anon_vma_moveto_tail". The difference is that
we don't try to impose the rmap traversal order; instead we just rely
on things being in the desired order in the common case and fall back
to taking locks in the uncommon case. Also we skip the i_mmap_mutex in
addition to the anon_vma lock: in both cases, the vmas are traversed in
increasing vm_pgoff order with ties resolved in tree insertion order.

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 fs/exec.c          |    2 +-
 include/linux/mm.h |    6 +++-
 mm/mmap.c          |    7 ++++-
 mm/mremap.c        |   57 +++++++++++++++++++++++++++++++++++----------------
 4 files changed, 49 insertions(+), 23 deletions(-)

diff --git a/fs/exec.c b/fs/exec.c
index da27b91ff1e8..f7b4009ea327 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -613,7 +613,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 	 * process cleanup to remove whatever mess we made.
 	 */
 	if (length != move_page_tables(vma, old_start,
-				       vma, new_start, length))
+				       vma, new_start, length, false))
 		return -ENOMEM;
 
 	lru_add_drain();
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1a2b1a44bd4e..c6a6b0b0f176 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1042,7 +1042,8 @@ vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group);
 
 extern unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
-		unsigned long new_addr, unsigned long len);
+		unsigned long new_addr, unsigned long len,
+		bool need_rmap_locks);
 extern unsigned long do_mremap(unsigned long addr,
 			       unsigned long old_len, unsigned long new_len,
 			       unsigned long flags, unsigned long new_addr);
@@ -1391,7 +1392,8 @@ extern void __vma_link_rb(struct mm_struct *, struct vm_area_struct *,
 	struct rb_node **, struct rb_node *);
 extern void unlink_file_vma(struct vm_area_struct *);
 extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
-	unsigned long addr, unsigned long len, pgoff_t pgoff);
+	unsigned long addr, unsigned long len, pgoff_t pgoff,
+	bool *need_rmap_locks);
 extern void exit_mmap(struct mm_struct *);
 
 extern int mm_take_all_locks(struct mm_struct *mm);
diff --git a/mm/mmap.c b/mm/mmap.c
index 884bda4cd3ea..cc8c64077a42 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2397,7 +2397,8 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
  * prior to moving page table entries, to effect an mremap move.
  */
 struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
-	unsigned long addr, unsigned long len, pgoff_t pgoff)
+	unsigned long addr, unsigned long len, pgoff_t pgoff,
+	bool *need_rmap_locks)
 {
 	struct vm_area_struct *vma = *vmap;
 	unsigned long vma_start = vma->vm_start;
@@ -2438,8 +2439,9 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 			 * linear if there are no pages mapped yet.
 			 */
 			VM_BUG_ON(faulted_in_anon_vma);
-			*vmap = new_vma;
+			*vmap = vma = new_vma;
 		}
+		*need_rmap_locks = (new_vma->vm_pgoff <= vma->vm_pgoff);
 	} else {
 		new_vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
 		if (new_vma) {
@@ -2466,6 +2468,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 			if (new_vma->vm_ops && new_vma->vm_ops->open)
 				new_vma->vm_ops->open(new_vma);
 			vma_link(mm, new_vma, prev, rb_link, rb_parent);
+			*need_rmap_locks = false;
 		}
 	}
 	return new_vma;
diff --git a/mm/mremap.c b/mm/mremap.c
index 95fb2e024ced..d18cdf09868c 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -71,26 +71,42 @@ static pmd_t *alloc_new_pmd(struct mm_struct *mm, struct vm_area_struct *vma,
 static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		unsigned long old_addr, unsigned long old_end,
 		struct vm_area_struct *new_vma, pmd_t *new_pmd,
-		unsigned long new_addr)
+		unsigned long new_addr, bool need_rmap_locks)
 {
 	struct address_space *mapping = NULL;
-	struct anon_vma *anon_vma = vma->anon_vma;
+	struct anon_vma *anon_vma = NULL;
 	struct mm_struct *mm = vma->vm_mm;
 	pte_t *old_pte, *new_pte, pte;
 	spinlock_t *old_ptl, *new_ptl;
 
-	if (vma->vm_file) {
-		/*
-		 * Subtle point from Rajesh Venkatasubramanian: before
-		 * moving file-based ptes, we must lock truncate_pagecache
-		 * out, since it might clean the dst vma before the src vma,
-		 * and we propagate stale pages into the dst afterward.
-		 */
-		mapping = vma->vm_file->f_mapping;
-		mutex_lock(&mapping->i_mmap_mutex);
+	/*
+	 * When need_rmap_locks is true, we take the i_mmap_mutex and anon_vma
+	 * locks to ensure that rmap will always observe either the old or the
+	 * new ptes. This is the easiest way to avoid races with
+	 * truncate_pagecache(), page migration, etc...
+	 *
+	 * When need_rmap_locks is false, we use other ways to avoid
+	 * such races:
+	 *
+	 * - During exec() shift_arg_pages(), we use a specially tagged vma
+	 *   which rmap call sites look for using is_vma_temporary_stack().
+	 *
+	 * - During mremap(), new_vma is often known to be placed after vma
+	 *   in rmap traversal order. This ensures rmap will always observe
+	 *   either the old pte, or the new pte, or both (the page table locks
+	 *   serialize access to individual ptes, but only rmap traversal
+	 *   order guarantees that we won't miss both the old and new ptes).
+	 */
+	if (need_rmap_locks) {
+		if (vma->vm_file) {
+			mapping = vma->vm_file->f_mapping;
+			mutex_lock(&mapping->i_mmap_mutex);
+		}
+		if (vma->anon_vma) {
+			anon_vma = vma->anon_vma;
+			anon_vma_lock(anon_vma);
+		}
 	}
-	if (anon_vma)
-		anon_vma_lock(anon_vma);
 
 	/*
 	 * We don't have to worry about the ordering of src and dst
@@ -127,7 +143,8 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 
 unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
-		unsigned long new_addr, unsigned long len)
+		unsigned long new_addr, unsigned long len,
+		bool need_rmap_locks)
 {
 	unsigned long extent, next, old_end;
 	pmd_t *old_pmd, *new_pmd;
@@ -174,7 +191,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 		if (extent > LATENCY_LIMIT)
 			extent = LATENCY_LIMIT;
 		move_ptes(vma, old_pmd, old_addr, old_addr + extent,
-				new_vma, new_pmd, new_addr);
+			  new_vma, new_pmd, new_addr, need_rmap_locks);
 		need_flush = true;
 	}
 	if (likely(need_flush))
@@ -198,6 +215,7 @@ static unsigned long move_vma(struct vm_area_struct *vma,
 	unsigned long hiwater_vm;
 	int split = 0;
 	int err;
+	bool need_rmap_locks;
 
 	/*
 	 * We'd prefer to avoid failure later on in do_munmap:
@@ -219,18 +237,21 @@ static unsigned long move_vma(struct vm_area_struct *vma,
 		return err;
 
 	new_pgoff = vma->vm_pgoff + ((old_addr - vma->vm_start) >> PAGE_SHIFT);
-	new_vma = copy_vma(&vma, new_addr, new_len, new_pgoff);
+	new_vma = copy_vma(&vma, new_addr, new_len, new_pgoff,
+			   &need_rmap_locks);
 	if (!new_vma)
 		return -ENOMEM;
 
-	moved_len = move_page_tables(vma, old_addr, new_vma, new_addr, old_len);
+	moved_len = move_page_tables(vma, old_addr, new_vma, new_addr, old_len,
+				     need_rmap_locks);
 	if (moved_len < old_len) {
 		/*
 		 * On error, move entries back from new area to old,
 		 * which will succeed since page tables still there,
 		 * and then proceed to unmap new area instead of old.
 		 */
-		move_page_tables(new_vma, new_addr, vma, old_addr, moved_len);
+		move_page_tables(new_vma, new_addr, vma, old_addr, moved_len,
+				 true);
 		vma = new_vma;
 		old_len = new_len;
 		old_addr = new_addr;
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect()
  2012-09-04  9:20 ` [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect() Michel Lespinasse
@ 2012-09-04 14:27   ` Andrea Arcangeli
  2012-09-04 21:53     ` Michel Lespinasse
  0 siblings, 1 reply; 30+ messages in thread
From: Andrea Arcangeli @ 2012-09-04 14:27 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: linux-mm, riel, peterz, hughd, daniel.santos, linux-kernel, akpm

Hi Michel,

On Tue, Sep 04, 2012 at 02:20:52AM -0700, Michel Lespinasse wrote:
> This change fixes an anon_vma locking issue in the following situation:
> - vma has no anon_vma
> - next has an anon_vma
> - vma is being shrunk / next is being expanded, due to an mprotect call
> 
> We need to take next's anon_vma lock to avoid races with rmap users
> (such as page migration) while next is being expanded.
> 
> This change also removes an optimization which avoided taking anon_vma
> lock during brk adjustments. We could probably make that optimization
> work again, but the following anon rmap change would break it,
> so I kept things as simple as possible here.

Agreed, definitely a bug not to take the lock whenever any
vm_start/vm_pgoff are moved, regardless if they're the next or current
vma. Only vm_end can be moved without taking the lock.

I'd prefer to fix it like this though:

-	if (vma->anon_vma && (importer || start != vma->vm_start)) {
+	if ((vma->anon_vma && (importer || start != vma->vm_start) ||
+           (adjust_next && next->anon_vma)) {

The strict fix is just to check also if we're moving next->vm_start or
not, and the lock is only needed if next->anon_vma is set (otherwise
there's no page yet set in the vma and we hold the mmap_sem in write
mode clearly that prevents new pages to be instantiated under us).

Plus we know if adjust_next is set, next is not null, so the above
should work. The already existing (optimized) check for the "vma"
should have been ok, so no need to de-optimize it.

Then it's still fine to retain the VM_BUG_ON in the branch where
anon_vma was not null.

Thanks!
Andrea

> 
> Signed-off-by: Michel Lespinasse <walken@google.com>
> ---
>  mm/mmap.c |   14 ++++++--------
>  1 files changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/mm/mmap.c b/mm/mmap.c
> index cebc346ba0db..5e64c7dfc090 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -570,14 +570,12 @@ again:			remove_next = 1 + (end > next->vm_end);
>  
>  	vma_adjust_trans_huge(vma, start, end, adjust_next);
>  
> -	/*
> -	 * When changing only vma->vm_end, we don't really need anon_vma
> -	 * lock. This is a fairly rare case by itself, but the anon_vma
> -	 * lock may be shared between many sibling processes.  Skipping
> -	 * the lock for brk adjustments makes a difference sometimes.
> -	 */
> -	if (vma->anon_vma && (importer || start != vma->vm_start)) {
> -		anon_vma = vma->anon_vma;
> +	anon_vma = vma->anon_vma;
> +	if (!anon_vma && adjust_next)
> +		anon_vma = next->anon_vma;
> +	if (anon_vma) {
> +		VM_BUG_ON(adjust_next && next->anon_vma &&
> +			  anon_vma != next->anon_vma);
>  		anon_vma_lock(anon_vma);
>  	}
>  
> -- 
> 1.7.7.3
> 

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect()
  2012-09-04 14:27   ` Andrea Arcangeli
@ 2012-09-04 21:53     ` Michel Lespinasse
  2012-09-04 22:16       ` Andrea Arcangeli
  0 siblings, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-04 21:53 UTC (permalink / raw)
  To: Andrea Arcangeli
  Cc: linux-mm, riel, peterz, hughd, daniel.santos, linux-kernel, akpm

On Tue, Sep 04, 2012 at 04:27:45PM +0200, Andrea Arcangeli wrote:
> Hi Michel,
> 
> On Tue, Sep 04, 2012 at 02:20:52AM -0700, Michel Lespinasse wrote:
> > This change fixes an anon_vma locking issue in the following situation:
> > - vma has no anon_vma
> > - next has an anon_vma
> > - vma is being shrunk / next is being expanded, due to an mprotect call
> > 
> > We need to take next's anon_vma lock to avoid races with rmap users
> > (such as page migration) while next is being expanded.
> > 
> > This change also removes an optimization which avoided taking anon_vma
> > lock during brk adjustments. We could probably make that optimization
> > work again, but the following anon rmap change would break it,
> > so I kept things as simple as possible here.
> 
> Agreed, definitely a bug not to take the lock whenever any
> vm_start/vm_pgoff are moved, regardless if they're the next or current
> vma. Only vm_end can be moved without taking the lock.
> 
> I'd prefer to fix it like this though:
> 
> -	if (vma->anon_vma && (importer || start != vma->vm_start)) {
> +	if ((vma->anon_vma && (importer || start != vma->vm_start) ||
> +           (adjust_next && next->anon_vma)) {

I think the minimal fix would actually be:

 	if (vma->anon_vma && (importer || start != vma->vm_start)) {
 		anon_vma = vma->anon_vma;
+	else if (next->anon_vma && adjust_next)
+		anon_vma = next->anon_vma;

I suppose if we were to consider adding this fix to the stable series,
we should probably do it in such a minimal way. I hadn't actually
considered it, because I was only thinking about this patch series,
and at patch 4/7 it becomes necessary to lock the anon_vma even if
only the vm_end side gets modified (so we'd still end up with what I
proposed in the end)

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect()
  2012-09-04 21:53     ` Michel Lespinasse
@ 2012-09-04 22:16       ` Andrea Arcangeli
  2012-09-05  0:45         ` Michel Lespinasse
  0 siblings, 1 reply; 30+ messages in thread
From: Andrea Arcangeli @ 2012-09-04 22:16 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: linux-mm, riel, peterz, hughd, daniel.santos, linux-kernel, akpm

On Tue, Sep 04, 2012 at 02:53:47PM -0700, Michel Lespinasse wrote:
> I think the minimal fix would actually be:
> 
>  	if (vma->anon_vma && (importer || start != vma->vm_start)) {
>  		anon_vma = vma->anon_vma;
> +	else if (next->anon_vma && adjust_next)
> +		anon_vma = next->anon_vma;

Right indeed. The last change required to the above is to check
adjust_next first.

> I suppose if we were to consider adding this fix to the stable series,
> we should probably do it in such a minimal way. I hadn't actually
> considered it, because I was only thinking about this patch series,
> and at patch 4/7 it becomes necessary to lock the anon_vma even if
> only the vm_end side gets modified (so we'd still end up with what I
> proposed in the end)

Ah, that fully explains you removed the optimization :). I was
reviewing the patch as a bugfix for upstream without noticing the
new requirements introduced by the later patches.

I would suggest to do the strict fix as above in as patch 1/8 and push
it in -mm, and to do only the optimization removal in 3/8. I think
we want it in -stable too later, so it'll make life easier to
cherry-pick the commit if it's merged independently.

Thanks!
Andrea

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect()
  2012-09-04 22:16       ` Andrea Arcangeli
@ 2012-09-05  0:45         ` Michel Lespinasse
  0 siblings, 0 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-05  0:45 UTC (permalink / raw)
  To: Andrea Arcangeli
  Cc: linux-mm, riel, peterz, hughd, daniel.santos, linux-kernel, akpm

On Tue, Sep 4, 2012 at 3:16 PM, Andrea Arcangeli <aarcange@redhat.com> wrote:
> I would suggest to do the strict fix as above in as patch 1/8 and push
> it in -mm, and to do only the optimization removal in 3/8. I think
> we want it in -stable too later, so it'll make life easier to
> cherry-pick the commit if it's merged independently.

All right. So I did this and the strict fix got into Andrew's tree as
mm-fix-potential-anon_vma-locking-issue-in-mprotect.patch

Andrew: when you try applying this series, this patch (2/7) won't
apply due to the strict fix being already there. Please just skip it
(and replace patch 4/7 with the replacement I'm about to send, so that
we end up with the same end state)

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 4/7] mm anon rmap: replace same_anon_vma linked list with an interval tree.
  2012-09-04  9:20 ` [PATCH 4/7] mm anon rmap: replace same_anon_vma linked list with an interval tree Michel Lespinasse
@ 2012-09-05  0:51   ` Michel Lespinasse
  0 siblings, 0 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-05  0:51 UTC (permalink / raw)
  To: linux-mm, riel, peterz, aarcange, hughd, daniel.santos; +Cc: linux-kernel, akpm

Andrew: previous patch won't apply anymore now that
mm-fix-potential-anon_vma-locking-issue-in-mprotect.patch
replaced patch 2/7. Following patch should apply instead,
leading to the same end state.

---------------------------------8<------------------------------------

When a large VMA (anon or private file mapping) is first touched, which
will populate its anon_vma field, and then split into many regions through
the use of mprotect(), the original anon_vma ends up linking all of the
vmas on a linked list. This can cause rmap to become inefficient, as we
have to walk potentially thousands of irrelevent vmas before finding the
one a given anon page might fall into.

By replacing the same_anon_vma linked list with an interval tree
(where each avc's interval is determined by its vma's start and
last pgoffs), we can make rmap efficient for this use case again.

While the change is large, all of its pieces are fairly simple.

Most places that were walking the same_anon_vma list were looking for
a known pgoff, so they can just use the anon_vma_interval_tree_foreach()
interval tree iterator instead. The exception here is ksm, where the
page's index is not known. It would probably be possible to rework ksm
so that the index would be known, but for now I have decided to keep things
simple and just walk the entirety of the interval tree there.

When updating vma's that already have an anon_vma assigned, we must take
care to re-index the corresponding avc's on their interval tree. This is
done through the use of anon_vma_interval_tree_pre_update_vma() and
anon_vma_interval_tree_post_update_vma(), which remove the avc's from
their interval tree before the update and re-insert them after the update.
The anon_vma stays locked during the update, so there is no chance that
rmap would miss the vmas that are being updated.

Change-Id: I6a6127d3c1fc1ab4af2acfc7ed2d269b963f6792

Signed-off-by: Michel Lespinasse <walken@google.com>
---
 include/linux/mm.h   |   14 +++++++++
 include/linux/rmap.h |   11 ++++---
 mm/huge_memory.c     |    5 ++-
 mm/interval_tree.c   |   14 +++++++++
 mm/ksm.c             |    9 ++++--
 mm/memory-failure.c  |    5 +++-
 mm/mmap.c            |   73 +++++++++++++++++++++++++++++++++++++------------
 mm/rmap.c            |   24 ++++++++--------
 8 files changed, 114 insertions(+), 41 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 38af0048037f..19d63ec2cbbb 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -20,6 +20,7 @@
 
 struct mempolicy;
 struct anon_vma;
+struct anon_vma_chain;
 struct file_ra_state;
 struct user_struct;
 struct writeback_control;
@@ -1358,6 +1359,19 @@ static inline void vma_nonlinear_insert(struct vm_area_struct *vma,
 	list_add_tail(&vma->shared.nonlinear, list);
 }
 
+void anon_vma_interval_tree_insert(struct anon_vma_chain *node,
+				   struct rb_root *root);
+void anon_vma_interval_tree_remove(struct anon_vma_chain *node,
+				   struct rb_root *root);
+struct anon_vma_chain *anon_vma_interval_tree_iter_first(
+	struct rb_root *root, unsigned long start, unsigned long last);
+struct anon_vma_chain *anon_vma_interval_tree_iter_next(
+	struct anon_vma_chain *node, unsigned long start, unsigned long last);
+
+#define anon_vma_interval_tree_foreach(avc, root, start, last)		 \
+	for (avc = anon_vma_interval_tree_iter_first(root, start, last); \
+	     avc; avc = anon_vma_interval_tree_iter_next(avc, start, last))
+
 /* mmap.c */
 extern int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin);
 extern int vma_adjust(struct vm_area_struct *vma, unsigned long start,
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 7f32cec57e67..dce44f7d3ed8 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -37,14 +37,14 @@ struct anon_vma {
 	atomic_t refcount;
 
 	/*
-	 * NOTE: the LSB of the head.next is set by
+	 * NOTE: the LSB of the rb_root.rb_node is set by
 	 * mm_take_all_locks() _after_ taking the above lock. So the
-	 * head must only be read/written after taking the above lock
+	 * rb_root must only be read/written after taking the above lock
 	 * to be sure to see a valid next pointer. The LSB bit itself
 	 * is serialized by a system wide lock only visible to
 	 * mm_take_all_locks() (mm_all_locks_mutex).
 	 */
-	struct list_head head;	/* Chain of private "related" vmas */
+	struct rb_root rb_root;	/* Interval tree of private "related" vmas */
 };
 
 /*
@@ -57,14 +57,15 @@ struct anon_vma {
  * with a VMA, or the VMAs associated with an anon_vma.
  * The "same_vma" list contains the anon_vma_chains linking
  * all the anon_vmas associated with this VMA.
- * The "same_anon_vma" list contains the anon_vma_chains
+ * The "rb" field indexes on an interval tree the anon_vma_chains
  * which link all the VMAs associated with this anon_vma.
  */
 struct anon_vma_chain {
 	struct vm_area_struct *vma;
 	struct anon_vma *anon_vma;
 	struct list_head same_vma;   /* locked by mmap_sem & page_table_lock */
-	struct list_head same_anon_vma;	/* locked by anon_vma->mutex */
+	struct rb_node rb;			/* locked by anon_vma->mutex */
+	unsigned long rb_subtree_last;
 };
 
 #ifdef CONFIG_MMU
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 57c4b9309015..fe119cb71b41 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1421,13 +1421,14 @@ static void __split_huge_page(struct page *page,
 			      struct anon_vma *anon_vma)
 {
 	int mapcount, mapcount2;
+	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct anon_vma_chain *avc;
 
 	BUG_ON(!PageHead(page));
 	BUG_ON(PageTail(page));
 
 	mapcount = 0;
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long addr = vma_address(page, vma);
 		BUG_ON(is_vma_temporary_stack(vma));
@@ -1453,7 +1454,7 @@ static void __split_huge_page(struct page *page,
 	__split_huge_page_refcount(page);
 
 	mapcount2 = 0;
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long addr = vma_address(page, vma);
 		BUG_ON(is_vma_temporary_stack(vma));
diff --git a/mm/interval_tree.c b/mm/interval_tree.c
index 4ab7b9ec3a56..f7c72cd35e1d 100644
--- a/mm/interval_tree.c
+++ b/mm/interval_tree.c
@@ -8,6 +8,7 @@
 
 #include <linux/mm.h>
 #include <linux/fs.h>
+#include <linux/rmap.h>
 #include <linux/interval_tree_generic.h>
 
 static inline unsigned long vma_start_pgoff(struct vm_area_struct *v)
@@ -57,3 +58,16 @@ void vma_interval_tree_insert_after(struct vm_area_struct *node,
 	rb_insert_augmented(&node->shared.linear.rb, root,
 			    &vma_interval_tree_augment);
 }
+
+static inline unsigned long avc_start_pgoff(struct anon_vma_chain *avc)
+{
+	return vma_start_pgoff(avc->vma);
+}
+
+static inline unsigned long avc_last_pgoff(struct anon_vma_chain *avc)
+{
+	return vma_last_pgoff(avc->vma);
+}
+
+INTERVAL_TREE_DEFINE(struct anon_vma_chain, rb, unsigned long, rb_subtree_last,
+		     avc_start_pgoff, avc_last_pgoff,, anon_vma_interval_tree)
diff --git a/mm/ksm.c b/mm/ksm.c
index 47c885368890..4b7cda74c2b2 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1614,7 +1614,8 @@ again:
 		struct vm_area_struct *vma;
 
 		anon_vma_lock(anon_vma);
-		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
+					       0, ULONG_MAX) {
 			vma = vmac->vma;
 			if (rmap_item->address < vma->vm_start ||
 			    rmap_item->address >= vma->vm_end)
@@ -1667,7 +1668,8 @@ again:
 		struct vm_area_struct *vma;
 
 		anon_vma_lock(anon_vma);
-		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
+					       0, ULONG_MAX) {
 			vma = vmac->vma;
 			if (rmap_item->address < vma->vm_start ||
 			    rmap_item->address >= vma->vm_end)
@@ -1719,7 +1721,8 @@ again:
 		struct vm_area_struct *vma;
 
 		anon_vma_lock(anon_vma);
-		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
+					       0, ULONG_MAX) {
 			vma = vmac->vma;
 			if (rmap_item->address < vma->vm_start ||
 			    rmap_item->address >= vma->vm_end)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 65d5e8d43633..c1b6841c13b6 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -400,18 +400,21 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill,
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
 	struct anon_vma *av;
+	pgoff_t pgoff;
 
 	av = page_lock_anon_vma(page);
 	if (av == NULL)	/* Not actually mapped anymore */
 		return;
 
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	read_lock(&tasklist_lock);
 	for_each_process (tsk) {
 		struct anon_vma_chain *vmac;
 
 		if (!task_early_kill(tsk))
 			continue;
-		list_for_each_entry(vmac, &av->head, same_anon_vma) {
+		anon_vma_interval_tree_foreach(vmac, &av->rb_root,
+					       pgoff, pgoff) {
 			vma = vmac->vma;
 			if (!page_mapped_in_vma(page, vma))
 				continue;
diff --git a/mm/mmap.c b/mm/mmap.c
index 541f1c9eda79..1a6afdb5194a 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -356,6 +356,38 @@ void validate_mm(struct mm_struct *mm)
 #define validate_mm(mm) do { } while (0)
 #endif
 
+/*
+ * vma has some anon_vma assigned, and is already inserted on that
+ * anon_vma's interval trees.
+ *
+ * Before updating the vma's vm_start / vm_end / vm_pgoff fields, the
+ * vma must be removed from the anon_vma's interval trees using
+ * anon_vma_interval_tree_pre_update_vma().
+ *
+ * After the update, the vma will be reinserted using
+ * anon_vma_interval_tree_post_update_vma().
+ *
+ * The entire update must be protected by exclusive mmap_sem and by
+ * the root anon_vma's mutex.
+ */
+static inline void
+anon_vma_interval_tree_pre_update_vma(struct vm_area_struct *vma)
+{
+	struct anon_vma_chain *avc;
+
+	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
+		anon_vma_interval_tree_remove(avc, &avc->anon_vma->rb_root);
+}
+
+static inline void
+anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma)
+{
+	struct anon_vma_chain *avc;
+
+	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
+		anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root);
+}
+
 static struct vm_area_struct *
 find_vma_prepare(struct mm_struct *mm, unsigned long addr,
 		struct vm_area_struct **pprev, struct rb_node ***rb_link,
@@ -570,20 +602,17 @@ again:			remove_next = 1 + (end > next->vm_end);
 
 	vma_adjust_trans_huge(vma, start, end, adjust_next);
 
-	/*
-	 * When changing only vma->vm_end, we don't really need anon_vma
-	 * lock. This is a fairly rare case by itself, but the anon_vma
-	 * lock may be shared between many sibling processes.  Skipping
-	 * the lock for brk adjustments makes a difference sometimes.
-	 */
-	if (vma->anon_vma && (importer || start != vma->vm_start)) {
-		anon_vma = vma->anon_vma;
+	anon_vma = vma->anon_vma;
+	if (!anon_vma && adjust_next)
+		anon_vma = next->anon_vma;
+	if (anon_vma) {
 		VM_BUG_ON(adjust_next && next->anon_vma &&
 			  anon_vma != next->anon_vma);
-	} else if (adjust_next && next->anon_vma)
-		anon_vma = next->anon_vma;
-	if (anon_vma)
 		anon_vma_lock(anon_vma);
+		anon_vma_interval_tree_pre_update_vma(vma);
+		if (adjust_next)
+			anon_vma_interval_tree_pre_update_vma(next);
+	}
 
 	if (root) {
 		flush_dcache_mmap_lock(mapping);
@@ -624,8 +653,12 @@ again:			remove_next = 1 + (end > next->vm_end);
 		__insert_vm_struct(mm, insert);
 	}
 
-	if (anon_vma)
+	if (anon_vma) {
+		anon_vma_interval_tree_post_update_vma(vma);
+		if (adjust_next)
+			anon_vma_interval_tree_post_update_vma(next);
 		anon_vma_unlock(anon_vma);
+	}
 	if (mapping)
 		mutex_unlock(&mapping->i_mmap_mutex);
 
@@ -1763,7 +1796,9 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 		if (vma->vm_pgoff + (size >> PAGE_SHIFT) >= vma->vm_pgoff) {
 			error = acct_stack_growth(vma, size, grow);
 			if (!error) {
+				anon_vma_interval_tree_pre_update_vma(vma);
 				vma->vm_end = address;
+				anon_vma_interval_tree_post_update_vma(vma);
 				perf_event_mmap(vma);
 			}
 		}
@@ -1813,8 +1848,10 @@ int expand_downwards(struct vm_area_struct *vma,
 		if (grow <= vma->vm_pgoff) {
 			error = acct_stack_growth(vma, size, grow);
 			if (!error) {
+				anon_vma_interval_tree_pre_update_vma(vma);
 				vma->vm_start = address;
 				vma->vm_pgoff -= grow;
+				anon_vma_interval_tree_post_update_vma(vma);
 				perf_event_mmap(vma);
 			}
 		}
@@ -2547,7 +2584,7 @@ static DEFINE_MUTEX(mm_all_locks_mutex);
 
 static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
 {
-	if (!test_bit(0, (unsigned long *) &anon_vma->root->head.next)) {
+	if (!test_bit(0, (unsigned long *) &anon_vma->root->rb_root.rb_node)) {
 		/*
 		 * The LSB of head.next can't change from under us
 		 * because we hold the mm_all_locks_mutex.
@@ -2563,7 +2600,7 @@ static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
 		 * anon_vma->root->mutex.
 		 */
 		if (__test_and_set_bit(0, (unsigned long *)
-				       &anon_vma->root->head.next))
+				       &anon_vma->root->rb_root.rb_node))
 			BUG();
 	}
 }
@@ -2604,7 +2641,7 @@ static void vm_lock_mapping(struct mm_struct *mm, struct address_space *mapping)
  * A single task can't take more than one mm_take_all_locks() in a row
  * or it would deadlock.
  *
- * The LSB in anon_vma->head.next and the AS_MM_ALL_LOCKS bitflag in
+ * The LSB in anon_vma->rb_root.rb_node and the AS_MM_ALL_LOCKS bitflag in
  * mapping->flags avoid to take the same lock twice, if more than one
  * vma in this mm is backed by the same anon_vma or address_space.
  *
@@ -2651,13 +2688,13 @@ out_unlock:
 
 static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
 {
-	if (test_bit(0, (unsigned long *) &anon_vma->root->head.next)) {
+	if (test_bit(0, (unsigned long *) &anon_vma->root->rb_root.rb_node)) {
 		/*
 		 * The LSB of head.next can't change to 0 from under
 		 * us because we hold the mm_all_locks_mutex.
 		 *
 		 * We must however clear the bitflag before unlocking
-		 * the vma so the users using the anon_vma->head will
+		 * the vma so the users using the anon_vma->rb_root will
 		 * never see our bitflag.
 		 *
 		 * No need of atomic instructions here, head.next
@@ -2665,7 +2702,7 @@ static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
 		 * anon_vma->root->mutex.
 		 */
 		if (!__test_and_clear_bit(0, (unsigned long *)
-					  &anon_vma->root->head.next))
+					  &anon_vma->root->rb_root.rb_node))
 			BUG();
 		anon_vma_unlock(anon_vma);
 	}
diff --git a/mm/rmap.c b/mm/rmap.c
index 8cbd62fde0f1..9c61bf387fd1 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -127,12 +127,7 @@ static void anon_vma_chain_link(struct vm_area_struct *vma,
 	avc->vma = vma;
 	avc->anon_vma = anon_vma;
 	list_add(&avc->same_vma, &vma->anon_vma_chain);
-
-	/*
-	 * It's critical to add new vmas to the tail of the anon_vma,
-	 * see comment in huge_memory.c:__split_huge_page().
-	 */
-	list_add_tail(&avc->same_anon_vma, &anon_vma->head);
+	anon_vma_interval_tree_insert(avc, &anon_vma->rb_root);
 }
 
 /**
@@ -336,13 +331,13 @@ void unlink_anon_vmas(struct vm_area_struct *vma)
 		struct anon_vma *anon_vma = avc->anon_vma;
 
 		root = lock_anon_vma_root(root, anon_vma);
-		list_del(&avc->same_anon_vma);
+		anon_vma_interval_tree_remove(avc, &anon_vma->rb_root);
 
 		/*
 		 * Leave empty anon_vmas on the list - we'll need
 		 * to free them outside the lock.
 		 */
-		if (list_empty(&anon_vma->head))
+		if (RB_EMPTY_ROOT(&anon_vma->rb_root))
 			continue;
 
 		list_del(&avc->same_vma);
@@ -371,7 +366,7 @@ static void anon_vma_ctor(void *data)
 
 	mutex_init(&anon_vma->mutex);
 	atomic_set(&anon_vma->refcount, 0);
-	INIT_LIST_HEAD(&anon_vma->head);
+	anon_vma->rb_root = RB_ROOT;
 }
 
 void __init anon_vma_init(void)
@@ -724,6 +719,7 @@ static int page_referenced_anon(struct page *page,
 {
 	unsigned int mapcount;
 	struct anon_vma *anon_vma;
+	pgoff_t pgoff;
 	struct anon_vma_chain *avc;
 	int referenced = 0;
 
@@ -732,7 +728,8 @@ static int page_referenced_anon(struct page *page,
 		return referenced;
 
 	mapcount = page_mapcount(page);
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address = vma_address(page, vma);
 		if (address == -EFAULT)
@@ -1445,6 +1442,7 @@ bool is_vma_temporary_stack(struct vm_area_struct *vma)
 static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
 {
 	struct anon_vma *anon_vma;
+	pgoff_t pgoff;
 	struct anon_vma_chain *avc;
 	int ret = SWAP_AGAIN;
 
@@ -1452,7 +1450,8 @@ static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
 	if (!anon_vma)
 		return ret;
 
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address;
 
@@ -1668,6 +1667,7 @@ static int rmap_walk_anon(struct page *page, int (*rmap_one)(struct page *,
 		struct vm_area_struct *, unsigned long, void *), void *arg)
 {
 	struct anon_vma *anon_vma;
+	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct anon_vma_chain *avc;
 	int ret = SWAP_AGAIN;
 
@@ -1681,7 +1681,7 @@ static int rmap_walk_anon(struct page *page, int (*rmap_one)(struct page *,
 	if (!anon_vma)
 		return ret;
 	anon_vma_lock(anon_vma);
-	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
+	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address = vma_address(page, vma);
 		if (address == -EFAULT)
-- 
1.7.7.3




On Tue, Sep 04, 2012 at 02:20:54AM -0700, Michel Lespinasse wrote:
> When a large VMA (anon or private file mapping) is first touched, which
> will populate its anon_vma field, and then split into many regions through
> the use of mprotect(), the original anon_vma ends up linking all of the
> vmas on a linked list. This can cause rmap to become inefficient, as we
> have to walk potentially thousands of irrelevent vmas before finding the
> one a given anon page might fall into.
> 
> By replacing the same_anon_vma linked list with an interval tree
> (where each avc's interval is determined by its vma's start and
> last pgoffs), we can make rmap efficient for this use case again.
> 
> While the change is large, all of its pieces are fairly simple.
> 
> Most places that were walking the same_anon_vma list were looking for
> a known pgoff, so they can just use the anon_vma_interval_tree_foreach()
> interval tree iterator instead. The exception here is ksm, where the
> page's index is not known. It would probably be possible to rework ksm
> so that the index would be known, but for now I have decided to keep things
> simple and just walk the entirety of the interval tree there.
> 
> When updating vma's that already have an anon_vma assigned, we must take
> care to re-index the corresponding avc's on their interval tree. This is
> done through the use of anon_vma_interval_tree_pre_update_vma() and
> anon_vma_interval_tree_post_update_vma(), which remove the avc's from
> their interval tree before the update and re-insert them after the update.
> The anon_vma stays locked during the update, so there is no chance that
> rmap would miss the vmas that are being updated.
> 
> Signed-off-by: Michel Lespinasse <walken@google.com>
> ---
>  include/linux/mm.h   |   14 ++++++++++++
>  include/linux/rmap.h |   11 +++++----
>  mm/huge_memory.c     |    5 ++-
>  mm/interval_tree.c   |   14 ++++++++++++
>  mm/ksm.c             |    9 +++++--
>  mm/memory-failure.c  |    5 +++-
>  mm/mmap.c            |   57 +++++++++++++++++++++++++++++++++++++++++++------
>  mm/rmap.c            |   24 ++++++++++----------
>  8 files changed, 109 insertions(+), 30 deletions(-)
> 
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 38af0048037f..19d63ec2cbbb 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -20,6 +20,7 @@
>  
>  struct mempolicy;
>  struct anon_vma;
> +struct anon_vma_chain;
>  struct file_ra_state;
>  struct user_struct;
>  struct writeback_control;
> @@ -1358,6 +1359,19 @@ static inline void vma_nonlinear_insert(struct vm_area_struct *vma,
>  	list_add_tail(&vma->shared.nonlinear, list);
>  }
>  
> +void anon_vma_interval_tree_insert(struct anon_vma_chain *node,
> +				   struct rb_root *root);
> +void anon_vma_interval_tree_remove(struct anon_vma_chain *node,
> +				   struct rb_root *root);
> +struct anon_vma_chain *anon_vma_interval_tree_iter_first(
> +	struct rb_root *root, unsigned long start, unsigned long last);
> +struct anon_vma_chain *anon_vma_interval_tree_iter_next(
> +	struct anon_vma_chain *node, unsigned long start, unsigned long last);
> +
> +#define anon_vma_interval_tree_foreach(avc, root, start, last)		 \
> +	for (avc = anon_vma_interval_tree_iter_first(root, start, last); \
> +	     avc; avc = anon_vma_interval_tree_iter_next(avc, start, last))
> +
>  /* mmap.c */
>  extern int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin);
>  extern int vma_adjust(struct vm_area_struct *vma, unsigned long start,
> diff --git a/include/linux/rmap.h b/include/linux/rmap.h
> index 7f32cec57e67..dce44f7d3ed8 100644
> --- a/include/linux/rmap.h
> +++ b/include/linux/rmap.h
> @@ -37,14 +37,14 @@ struct anon_vma {
>  	atomic_t refcount;
>  
>  	/*
> -	 * NOTE: the LSB of the head.next is set by
> +	 * NOTE: the LSB of the rb_root.rb_node is set by
>  	 * mm_take_all_locks() _after_ taking the above lock. So the
> -	 * head must only be read/written after taking the above lock
> +	 * rb_root must only be read/written after taking the above lock
>  	 * to be sure to see a valid next pointer. The LSB bit itself
>  	 * is serialized by a system wide lock only visible to
>  	 * mm_take_all_locks() (mm_all_locks_mutex).
>  	 */
> -	struct list_head head;	/* Chain of private "related" vmas */
> +	struct rb_root rb_root;	/* Interval tree of private "related" vmas */
>  };
>  
>  /*
> @@ -57,14 +57,15 @@ struct anon_vma {
>   * with a VMA, or the VMAs associated with an anon_vma.
>   * The "same_vma" list contains the anon_vma_chains linking
>   * all the anon_vmas associated with this VMA.
> - * The "same_anon_vma" list contains the anon_vma_chains
> + * The "rb" field indexes on an interval tree the anon_vma_chains
>   * which link all the VMAs associated with this anon_vma.
>   */
>  struct anon_vma_chain {
>  	struct vm_area_struct *vma;
>  	struct anon_vma *anon_vma;
>  	struct list_head same_vma;   /* locked by mmap_sem & page_table_lock */
> -	struct list_head same_anon_vma;	/* locked by anon_vma->mutex */
> +	struct rb_node rb;			/* locked by anon_vma->mutex */
> +	unsigned long rb_subtree_last;
>  };
>  
>  #ifdef CONFIG_MMU
> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
> index 57c4b9309015..fe119cb71b41 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -1421,13 +1421,14 @@ static void __split_huge_page(struct page *page,
>  			      struct anon_vma *anon_vma)
>  {
>  	int mapcount, mapcount2;
> +	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
>  	struct anon_vma_chain *avc;
>  
>  	BUG_ON(!PageHead(page));
>  	BUG_ON(PageTail(page));
>  
>  	mapcount = 0;
> -	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
> +	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
>  		struct vm_area_struct *vma = avc->vma;
>  		unsigned long addr = vma_address(page, vma);
>  		BUG_ON(is_vma_temporary_stack(vma));
> @@ -1453,7 +1454,7 @@ static void __split_huge_page(struct page *page,
>  	__split_huge_page_refcount(page);
>  
>  	mapcount2 = 0;
> -	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
> +	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
>  		struct vm_area_struct *vma = avc->vma;
>  		unsigned long addr = vma_address(page, vma);
>  		BUG_ON(is_vma_temporary_stack(vma));
> diff --git a/mm/interval_tree.c b/mm/interval_tree.c
> index 4ab7b9ec3a56..f7c72cd35e1d 100644
> --- a/mm/interval_tree.c
> +++ b/mm/interval_tree.c
> @@ -8,6 +8,7 @@
>  
>  #include <linux/mm.h>
>  #include <linux/fs.h>
> +#include <linux/rmap.h>
>  #include <linux/interval_tree_generic.h>
>  
>  static inline unsigned long vma_start_pgoff(struct vm_area_struct *v)
> @@ -57,3 +58,16 @@ void vma_interval_tree_insert_after(struct vm_area_struct *node,
>  	rb_insert_augmented(&node->shared.linear.rb, root,
>  			    &vma_interval_tree_augment);
>  }
> +
> +static inline unsigned long avc_start_pgoff(struct anon_vma_chain *avc)
> +{
> +	return vma_start_pgoff(avc->vma);
> +}
> +
> +static inline unsigned long avc_last_pgoff(struct anon_vma_chain *avc)
> +{
> +	return vma_last_pgoff(avc->vma);
> +}
> +
> +INTERVAL_TREE_DEFINE(struct anon_vma_chain, rb, unsigned long, rb_subtree_last,
> +		     avc_start_pgoff, avc_last_pgoff,, anon_vma_interval_tree)
> diff --git a/mm/ksm.c b/mm/ksm.c
> index 47c885368890..4b7cda74c2b2 100644
> --- a/mm/ksm.c
> +++ b/mm/ksm.c
> @@ -1614,7 +1614,8 @@ again:
>  		struct vm_area_struct *vma;
>  
>  		anon_vma_lock(anon_vma);
> -		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
> +		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
> +					       0, ULONG_MAX) {
>  			vma = vmac->vma;
>  			if (rmap_item->address < vma->vm_start ||
>  			    rmap_item->address >= vma->vm_end)
> @@ -1667,7 +1668,8 @@ again:
>  		struct vm_area_struct *vma;
>  
>  		anon_vma_lock(anon_vma);
> -		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
> +		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
> +					       0, ULONG_MAX) {
>  			vma = vmac->vma;
>  			if (rmap_item->address < vma->vm_start ||
>  			    rmap_item->address >= vma->vm_end)
> @@ -1719,7 +1721,8 @@ again:
>  		struct vm_area_struct *vma;
>  
>  		anon_vma_lock(anon_vma);
> -		list_for_each_entry(vmac, &anon_vma->head, same_anon_vma) {
> +		anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
> +					       0, ULONG_MAX) {
>  			vma = vmac->vma;
>  			if (rmap_item->address < vma->vm_start ||
>  			    rmap_item->address >= vma->vm_end)
> diff --git a/mm/memory-failure.c b/mm/memory-failure.c
> index 65d5e8d43633..c1b6841c13b6 100644
> --- a/mm/memory-failure.c
> +++ b/mm/memory-failure.c
> @@ -400,18 +400,21 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill,
>  	struct vm_area_struct *vma;
>  	struct task_struct *tsk;
>  	struct anon_vma *av;
> +	pgoff_t pgoff;
>  
>  	av = page_lock_anon_vma(page);
>  	if (av == NULL)	/* Not actually mapped anymore */
>  		return;
>  
> +	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
>  	read_lock(&tasklist_lock);
>  	for_each_process (tsk) {
>  		struct anon_vma_chain *vmac;
>  
>  		if (!task_early_kill(tsk))
>  			continue;
> -		list_for_each_entry(vmac, &av->head, same_anon_vma) {
> +		anon_vma_interval_tree_foreach(vmac, &av->rb_root,
> +					       pgoff, pgoff) {
>  			vma = vmac->vma;
>  			if (!page_mapped_in_vma(page, vma))
>  				continue;
> diff --git a/mm/mmap.c b/mm/mmap.c
> index ea647255d763..1a6afdb5194a 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -356,6 +356,38 @@ void validate_mm(struct mm_struct *mm)
>  #define validate_mm(mm) do { } while (0)
>  #endif
>  
> +/*
> + * vma has some anon_vma assigned, and is already inserted on that
> + * anon_vma's interval trees.
> + *
> + * Before updating the vma's vm_start / vm_end / vm_pgoff fields, the
> + * vma must be removed from the anon_vma's interval trees using
> + * anon_vma_interval_tree_pre_update_vma().
> + *
> + * After the update, the vma will be reinserted using
> + * anon_vma_interval_tree_post_update_vma().
> + *
> + * The entire update must be protected by exclusive mmap_sem and by
> + * the root anon_vma's mutex.
> + */
> +static inline void
> +anon_vma_interval_tree_pre_update_vma(struct vm_area_struct *vma)
> +{
> +	struct anon_vma_chain *avc;
> +
> +	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
> +		anon_vma_interval_tree_remove(avc, &avc->anon_vma->rb_root);
> +}
> +
> +static inline void
> +anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma)
> +{
> +	struct anon_vma_chain *avc;
> +
> +	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
> +		anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root);
> +}
> +
>  static struct vm_area_struct *
>  find_vma_prepare(struct mm_struct *mm, unsigned long addr,
>  		struct vm_area_struct **pprev, struct rb_node ***rb_link,
> @@ -577,6 +609,9 @@ again:			remove_next = 1 + (end > next->vm_end);
>  		VM_BUG_ON(adjust_next && next->anon_vma &&
>  			  anon_vma != next->anon_vma);
>  		anon_vma_lock(anon_vma);
> +		anon_vma_interval_tree_pre_update_vma(vma);
> +		if (adjust_next)
> +			anon_vma_interval_tree_pre_update_vma(next);
>  	}
>  
>  	if (root) {
> @@ -618,8 +653,12 @@ again:			remove_next = 1 + (end > next->vm_end);
>  		__insert_vm_struct(mm, insert);
>  	}
>  
> -	if (anon_vma)
> +	if (anon_vma) {
> +		anon_vma_interval_tree_post_update_vma(vma);
> +		if (adjust_next)
> +			anon_vma_interval_tree_post_update_vma(next);
>  		anon_vma_unlock(anon_vma);
> +	}
>  	if (mapping)
>  		mutex_unlock(&mapping->i_mmap_mutex);
>  
> @@ -1757,7 +1796,9 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
>  		if (vma->vm_pgoff + (size >> PAGE_SHIFT) >= vma->vm_pgoff) {
>  			error = acct_stack_growth(vma, size, grow);
>  			if (!error) {
> +				anon_vma_interval_tree_pre_update_vma(vma);
>  				vma->vm_end = address;
> +				anon_vma_interval_tree_post_update_vma(vma);
>  				perf_event_mmap(vma);
>  			}
>  		}
> @@ -1807,8 +1848,10 @@ int expand_downwards(struct vm_area_struct *vma,
>  		if (grow <= vma->vm_pgoff) {
>  			error = acct_stack_growth(vma, size, grow);
>  			if (!error) {
> +				anon_vma_interval_tree_pre_update_vma(vma);
>  				vma->vm_start = address;
>  				vma->vm_pgoff -= grow;
> +				anon_vma_interval_tree_post_update_vma(vma);
>  				perf_event_mmap(vma);
>  			}
>  		}
> @@ -2541,7 +2584,7 @@ static DEFINE_MUTEX(mm_all_locks_mutex);
>  
>  static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
>  {
> -	if (!test_bit(0, (unsigned long *) &anon_vma->root->head.next)) {
> +	if (!test_bit(0, (unsigned long *) &anon_vma->root->rb_root.rb_node)) {
>  		/*
>  		 * The LSB of head.next can't change from under us
>  		 * because we hold the mm_all_locks_mutex.
> @@ -2557,7 +2600,7 @@ static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
>  		 * anon_vma->root->mutex.
>  		 */
>  		if (__test_and_set_bit(0, (unsigned long *)
> -				       &anon_vma->root->head.next))
> +				       &anon_vma->root->rb_root.rb_node))
>  			BUG();
>  	}
>  }
> @@ -2598,7 +2641,7 @@ static void vm_lock_mapping(struct mm_struct *mm, struct address_space *mapping)
>   * A single task can't take more than one mm_take_all_locks() in a row
>   * or it would deadlock.
>   *
> - * The LSB in anon_vma->head.next and the AS_MM_ALL_LOCKS bitflag in
> + * The LSB in anon_vma->rb_root.rb_node and the AS_MM_ALL_LOCKS bitflag in
>   * mapping->flags avoid to take the same lock twice, if more than one
>   * vma in this mm is backed by the same anon_vma or address_space.
>   *
> @@ -2645,13 +2688,13 @@ out_unlock:
>  
>  static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
>  {
> -	if (test_bit(0, (unsigned long *) &anon_vma->root->head.next)) {
> +	if (test_bit(0, (unsigned long *) &anon_vma->root->rb_root.rb_node)) {
>  		/*
>  		 * The LSB of head.next can't change to 0 from under
>  		 * us because we hold the mm_all_locks_mutex.
>  		 *
>  		 * We must however clear the bitflag before unlocking
> -		 * the vma so the users using the anon_vma->head will
> +		 * the vma so the users using the anon_vma->rb_root will
>  		 * never see our bitflag.
>  		 *
>  		 * No need of atomic instructions here, head.next
> @@ -2659,7 +2702,7 @@ static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
>  		 * anon_vma->root->mutex.
>  		 */
>  		if (!__test_and_clear_bit(0, (unsigned long *)
> -					  &anon_vma->root->head.next))
> +					  &anon_vma->root->rb_root.rb_node))
>  			BUG();
>  		anon_vma_unlock(anon_vma);
>  	}
> diff --git a/mm/rmap.c b/mm/rmap.c
> index 8cbd62fde0f1..9c61bf387fd1 100644
> --- a/mm/rmap.c
> +++ b/mm/rmap.c
> @@ -127,12 +127,7 @@ static void anon_vma_chain_link(struct vm_area_struct *vma,
>  	avc->vma = vma;
>  	avc->anon_vma = anon_vma;
>  	list_add(&avc->same_vma, &vma->anon_vma_chain);
> -
> -	/*
> -	 * It's critical to add new vmas to the tail of the anon_vma,
> -	 * see comment in huge_memory.c:__split_huge_page().
> -	 */
> -	list_add_tail(&avc->same_anon_vma, &anon_vma->head);
> +	anon_vma_interval_tree_insert(avc, &anon_vma->rb_root);
>  }
>  
>  /**
> @@ -336,13 +331,13 @@ void unlink_anon_vmas(struct vm_area_struct *vma)
>  		struct anon_vma *anon_vma = avc->anon_vma;
>  
>  		root = lock_anon_vma_root(root, anon_vma);
> -		list_del(&avc->same_anon_vma);
> +		anon_vma_interval_tree_remove(avc, &anon_vma->rb_root);
>  
>  		/*
>  		 * Leave empty anon_vmas on the list - we'll need
>  		 * to free them outside the lock.
>  		 */
> -		if (list_empty(&anon_vma->head))
> +		if (RB_EMPTY_ROOT(&anon_vma->rb_root))
>  			continue;
>  
>  		list_del(&avc->same_vma);
> @@ -371,7 +366,7 @@ static void anon_vma_ctor(void *data)
>  
>  	mutex_init(&anon_vma->mutex);
>  	atomic_set(&anon_vma->refcount, 0);
> -	INIT_LIST_HEAD(&anon_vma->head);
> +	anon_vma->rb_root = RB_ROOT;
>  }
>  
>  void __init anon_vma_init(void)
> @@ -724,6 +719,7 @@ static int page_referenced_anon(struct page *page,
>  {
>  	unsigned int mapcount;
>  	struct anon_vma *anon_vma;
> +	pgoff_t pgoff;
>  	struct anon_vma_chain *avc;
>  	int referenced = 0;
>  
> @@ -732,7 +728,8 @@ static int page_referenced_anon(struct page *page,
>  		return referenced;
>  
>  	mapcount = page_mapcount(page);
> -	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
> +	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
> +	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
>  		struct vm_area_struct *vma = avc->vma;
>  		unsigned long address = vma_address(page, vma);
>  		if (address == -EFAULT)
> @@ -1445,6 +1442,7 @@ bool is_vma_temporary_stack(struct vm_area_struct *vma)
>  static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
>  {
>  	struct anon_vma *anon_vma;
> +	pgoff_t pgoff;
>  	struct anon_vma_chain *avc;
>  	int ret = SWAP_AGAIN;
>  
> @@ -1452,7 +1450,8 @@ static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
>  	if (!anon_vma)
>  		return ret;
>  
> -	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
> +	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
> +	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
>  		struct vm_area_struct *vma = avc->vma;
>  		unsigned long address;
>  
> @@ -1668,6 +1667,7 @@ static int rmap_walk_anon(struct page *page, int (*rmap_one)(struct page *,
>  		struct vm_area_struct *, unsigned long, void *), void *arg)
>  {
>  	struct anon_vma *anon_vma;
> +	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
>  	struct anon_vma_chain *avc;
>  	int ret = SWAP_AGAIN;
>  
> @@ -1681,7 +1681,7 @@ static int rmap_walk_anon(struct page *page, int (*rmap_one)(struct page *,
>  	if (!anon_vma)
>  		return ret;
>  	anon_vma_lock(anon_vma);
> -	list_for_each_entry(avc, &anon_vma->head, same_anon_vma) {
> +	anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, pgoff, pgoff) {
>  		struct vm_area_struct *vma = avc->vma;
>  		unsigned long address = vma_address(page, vma);
>  		if (address == -EFAULT)
> -- 
> 1.7.7.3

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 1/7] mm: interval tree updates
  2012-09-04  9:20 ` [PATCH 1/7] mm: interval tree updates Michel Lespinasse
@ 2012-09-07 22:13   ` Andrew Morton
  2012-09-07 22:29     ` Michel Lespinasse
  0 siblings, 1 reply; 30+ messages in thread
From: Andrew Morton @ 2012-09-07 22:13 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos, linux-kernel

On Tue,  4 Sep 2012 02:20:51 -0700
Michel Lespinasse <walken@google.com> wrote:

> This commit updates the generic interval tree code that was
> introduced in "mm: replace vma prio_tree with an interval tree".
> 
> Changes:
> 
> - fixed 'endpoing' typo noticed by Andrew Morton
> 
> - replaced include/linux/interval_tree_tmpl.h, which was used as a
>   template (including it automatically defined the interval tree
>   functions) with include/linux/interval_tree_generic.h, which only
>   defines a preprocessor macro INTERVAL_TREE_DEFINE(), which itself
>   defines the interval tree functions when invoked. Now that is a very
>   long macro which is unfortunate, but it does make the usage sites
>   (lib/interval_tree.c and mm/interval_tree.c) a bit nicer than previously.
> 
> - make use of RB_DECLARE_CALLBACKS() in the INTERVAL_TREE_DEFINE() macro,
>   instead of duplicating that code in the interval tree template.
> 
> - replaced vma_interval_tree_add(), which was actually handling the
>   nonlinear and interval tree cases, with vma_interval_tree_insert_after()
>   which handles only the interval tree case and has an API that is more
>   consistent with the other interval tree handling functions.
>   The nonlinear case is now handled explicitly in kernel/fork.c dup_mmap().
> 
> Signed-off-by: Michel Lespinasse <walken@google.com>
> ---
>  include/linux/interval_tree_generic.h |  191 ++++++++++++++++++++++++++++
>  include/linux/interval_tree_tmpl.h    |  219 ---------------------------------

Well that's a mess.  We create interval_tree_generic.h then four
commits later it vanishes, never to return.  And I can't fold
mm-interval-tree-updates.patch into
mm-replace-vma-prio_tree-with-an-interval-tree.patch because
rbtree-move-augmented-rbtree-functionality-to-rbtree_augmentedh.patch
mucks with interval_tree_generic.h within those four commits.

Ho hum.  I don't think I can be bothered untangling all this.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 1/7] mm: interval tree updates
  2012-09-07 22:13   ` Andrew Morton
@ 2012-09-07 22:29     ` Michel Lespinasse
  2012-09-07 22:55       ` Andrew Morton
  0 siblings, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-07 22:29 UTC (permalink / raw)
  To: Andrew Morton
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos, linux-kernel

On Fri, Sep 7, 2012 at 3:13 PM, Andrew Morton <akpm@linux-foundation.org> wrote:
> On Tue,  4 Sep 2012 02:20:51 -0700
> Michel Lespinasse <walken@google.com> wrote:
>
>> This commit updates the generic interval tree code that was
>> introduced in "mm: replace vma prio_tree with an interval tree".
>>
>> Changes:
>>
>> - fixed 'endpoing' typo noticed by Andrew Morton
>>
>> - replaced include/linux/interval_tree_tmpl.h, which was used as a
>>   template (including it automatically defined the interval tree
>>   functions) with include/linux/interval_tree_generic.h, which only
>>   defines a preprocessor macro INTERVAL_TREE_DEFINE(), which itself
>>   defines the interval tree functions when invoked. Now that is a very
>>   long macro which is unfortunate, but it does make the usage sites
>>   (lib/interval_tree.c and mm/interval_tree.c) a bit nicer than previously.
>>
>> - make use of RB_DECLARE_CALLBACKS() in the INTERVAL_TREE_DEFINE() macro,
>>   instead of duplicating that code in the interval tree template.
>>
>> - replaced vma_interval_tree_add(), which was actually handling the
>>   nonlinear and interval tree cases, with vma_interval_tree_insert_after()
>>   which handles only the interval tree case and has an API that is more
>>   consistent with the other interval tree handling functions.
>>   The nonlinear case is now handled explicitly in kernel/fork.c dup_mmap().
>>
>> Signed-off-by: Michel Lespinasse <walken@google.com>
>> ---
>>  include/linux/interval_tree_generic.h |  191 ++++++++++++++++++++++++++++
>>  include/linux/interval_tree_tmpl.h    |  219 ---------------------------------
>
> Well that's a mess.  We create interval_tree_generic.h then four
> commits later it vanishes, never to return.  And I can't fold
> mm-interval-tree-updates.patch into
> mm-replace-vma-prio_tree-with-an-interval-tree.patch because
> rbtree-move-augmented-rbtree-functionality-to-rbtree_augmentedh.patch
> mucks with interval_tree_generic.h within those four commits.
>
> Ho hum.  I don't think I can be bothered untangling all this.

I don't think you should have to do it yourself either.

But, if you're willing to take it, I can send you replacement patches for
(mm-replace-vma-prio_tree-with-an-interval-tree.patch +
mm-interval-tree-updates.patch) collapsed into one, and
rbtree-move-augmented-rbtree-functionality-to-rbtree_augmentedh.patch
fixed so that it'd apply after the collapsed patch (and get to the
same end state).

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 1/7] mm: interval tree updates
  2012-09-07 22:29     ` Michel Lespinasse
@ 2012-09-07 22:55       ` Andrew Morton
  2012-09-07 23:26         ` Michel Lespinasse
  2012-09-07 23:26         ` Michel Lespinasse
  0 siblings, 2 replies; 30+ messages in thread
From: Andrew Morton @ 2012-09-07 22:55 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos, linux-kernel

On Fri, 7 Sep 2012 15:29:36 -0700
Michel Lespinasse <walken@google.com> wrote:

> > Ho hum.  I don't think I can be bothered untangling all this.
> 
> I don't think you should have to do it yourself either.

Patch wrangling is what I do ;)

> But, if you're willing to take it, I can send you replacement patches for
> (mm-replace-vma-prio_tree-with-an-interval-tree.patch +
> mm-interval-tree-updates.patch) collapsed into one, and
> rbtree-move-augmented-rbtree-functionality-to-rbtree_augmentedh.patch
> fixed so that it'd apply after the collapsed patch (and get to the
> same end state).

Yes please, I suppose we should do this.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 1/7] mm: interval tree updates
  2012-09-07 22:55       ` Andrew Morton
@ 2012-09-07 23:26         ` Michel Lespinasse
  2012-09-08  4:45           ` Hillf Danton
  2012-09-07 23:26         ` Michel Lespinasse
  1 sibling, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-07 23:26 UTC (permalink / raw)
  To: Andrew Morton
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos, linux-kernel

On Fri, Sep 07, 2012 at 03:55:14PM -0700, Andrew Morton wrote:
> On Fri, 7 Sep 2012 15:29:36 -0700
> Michel Lespinasse <walken@google.com> wrote:
> 
> > > Ho hum.  I don't think I can be bothered untangling all this.
> > 
> > I don't think you should have to do it yourself either.
> 
> Patch wrangling is what I do ;)
> 
> > But, if you're willing to take it, I can send you replacement patches for
> > (mm-replace-vma-prio_tree-with-an-interval-tree.patch +
> > mm-interval-tree-updates.patch) collapsed into one, and
> > rbtree-move-augmented-rbtree-functionality-to-rbtree_augmentedh.patch
> > fixed so that it'd apply after the collapsed patch (and get to the
> > same end state).
> 
> Yes please, I suppose we should do this.

All right, here is the replacement for
+ mm-replace-vma-prio_tree-with-an-interval-tree.patch
and
+ mm-interval-tree-updates.patch
all collapsed into one:

(I also copied the signed-offs and ccs from the original change)

-----------------------------8<-------------------------------------
From: Michel Lespinasse <walken@google.com>
Subject: mm: replace vma prio_tree with an interval tree

Implement an interval tree as a replacement for the VMA prio_tree.
The algorithms are similar to lib/interval_tree.c; however that code
can't be directly reused as the interval endpoints are not explicitly
stored in the VMA. So instead, the common algorithm is moved into
a template and the details (node type, how to get interval endpoints
from the node, etc) are filled in using the C preprocessor.

Once the interval tree functions are available, using them as a replacement
to the VMA prio tree is a relatively simple, mechanical job.

Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm/mm/fault-armv.c              |    3 +-
 arch/arm/mm/flush.c                   |    3 +-
 arch/parisc/kernel/cache.c            |    3 +-
 arch/x86/mm/hugetlbpage.c             |    3 +-
 fs/hugetlbfs/inode.c                  |    9 +-
 fs/inode.c                            |    2 +-
 include/linux/fs.h                    |    6 +-
 include/linux/interval_tree_generic.h |  189 ++++++++++++++++++++++++++++++
 include/linux/mm.h                    |   30 +++--
 include/linux/mm_types.h              |   14 +--
 kernel/events/uprobes.c               |    3 +-
 kernel/fork.c                         |    7 +-
 lib/interval_tree.c                   |  161 +------------------------
 lib/prio_tree.c                       |   19 +---
 mm/Makefile                           |    4 +-
 mm/filemap_xip.c                      |    3 +-
 mm/fremap.c                           |    2 +-
 mm/hugetlb.c                          |    3 +-
 mm/interval_tree.c                    |   59 +++++++++
 mm/memory-failure.c                   |    3 +-
 mm/memory.c                           |    9 +-
 mm/mmap.c                             |   22 ++--
 mm/nommu.c                            |   12 +-
 mm/prio_tree.c                        |  208 ---------------------------------
 mm/rmap.c                             |   18 +--
 25 files changed, 330 insertions(+), 465 deletions(-)
 create mode 100644 include/linux/interval_tree_generic.h
 create mode 100644 mm/interval_tree.c
 delete mode 100644 mm/prio_tree.c

diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 7599e2625c7d..2a5907b5c8d2 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -134,7 +134,6 @@ make_coherent(struct address_space *mapping, struct vm_area_struct *vma,
 {
 	struct mm_struct *mm = vma->vm_mm;
 	struct vm_area_struct *mpnt;
-	struct prio_tree_iter iter;
 	unsigned long offset;
 	pgoff_t pgoff;
 	int aliases = 0;
@@ -147,7 +146,7 @@ make_coherent(struct address_space *mapping, struct vm_area_struct *vma,
 	 * cache coherency.
 	 */
 	flush_dcache_mmap_lock(mapping);
-	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(mpnt, &mapping->i_mmap, pgoff, pgoff) {
 		/*
 		 * If this VMA is not in our MM, we can ignore it.
 		 * Note that we intentionally mask out the VMA
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index 77458548e031..ad174f68b200 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -196,7 +196,6 @@ static void __flush_dcache_aliases(struct address_space *mapping, struct page *p
 {
 	struct mm_struct *mm = current->active_mm;
 	struct vm_area_struct *mpnt;
-	struct prio_tree_iter iter;
 	pgoff_t pgoff;
 
 	/*
@@ -208,7 +207,7 @@ static void __flush_dcache_aliases(struct address_space *mapping, struct page *p
 	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 
 	flush_dcache_mmap_lock(mapping);
-	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(mpnt, &mapping->i_mmap, pgoff, pgoff) {
 		unsigned long offset;
 
 		/*
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 9d181890a7e3..48e16dc20102 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -276,7 +276,6 @@ void flush_dcache_page(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
-	struct prio_tree_iter iter;
 	unsigned long offset;
 	unsigned long addr, old_addr = 0;
 	pgoff_t pgoff;
@@ -299,7 +298,7 @@ void flush_dcache_page(struct page *page)
 	 * to flush one address here for them all to become coherent */
 
 	flush_dcache_mmap_lock(mapping);
-	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(mpnt, &mapping->i_mmap, pgoff, pgoff) {
 		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
 		addr = mpnt->vm_start + offset;
 
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index f6679a7fb8ca..b396cc148915 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -64,7 +64,6 @@ static void huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
 	struct address_space *mapping = vma->vm_file->f_mapping;
 	pgoff_t idx = ((addr - vma->vm_start) >> PAGE_SHIFT) +
 			vma->vm_pgoff;
-	struct prio_tree_iter iter;
 	struct vm_area_struct *svma;
 	unsigned long saddr;
 	pte_t *spte = NULL;
@@ -73,7 +72,7 @@ static void huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
 		return;
 
 	mutex_lock(&mapping->i_mmap_mutex);
-	vma_prio_tree_foreach(svma, &iter, &mapping->i_mmap, idx, idx) {
+	vma_interval_tree_foreach(svma, &mapping->i_mmap, idx, idx) {
 		if (svma == vma)
 			continue;
 
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index cc9281b6c628..e011215d8b09 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -397,17 +397,16 @@ static void hugetlbfs_evict_inode(struct inode *inode)
 }
 
 static inline void
-hugetlb_vmtruncate_list(struct prio_tree_root *root, pgoff_t pgoff)
+hugetlb_vmtruncate_list(struct rb_root *root, pgoff_t pgoff)
 {
 	struct vm_area_struct *vma;
-	struct prio_tree_iter iter;
 
-	vma_prio_tree_foreach(vma, &iter, root, pgoff, ULONG_MAX) {
+	vma_interval_tree_foreach(vma, root, pgoff, ULONG_MAX) {
 		unsigned long v_offset;
 
 		/*
 		 * Can the expression below overflow on 32-bit arches?
-		 * No, because the prio_tree returns us only those vmas
+		 * No, because the interval tree returns us only those vmas
 		 * which overlap the truncated area starting at pgoff,
 		 * and no vma on a 32-bit arch can span beyond the 4GB.
 		 */
@@ -432,7 +431,7 @@ static int hugetlb_vmtruncate(struct inode *inode, loff_t offset)
 
 	i_size_write(inode, offset);
 	mutex_lock(&mapping->i_mmap_mutex);
-	if (!prio_tree_empty(&mapping->i_mmap))
+	if (!RB_EMPTY_ROOT(&mapping->i_mmap))
 		hugetlb_vmtruncate_list(&mapping->i_mmap, pgoff);
 	mutex_unlock(&mapping->i_mmap_mutex);
 	truncate_hugepages(inode, offset);
diff --git a/fs/inode.c b/fs/inode.c
index c99163b1b310..0db855338846 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -348,7 +348,7 @@ void address_space_init_once(struct address_space *mapping)
 	mutex_init(&mapping->i_mmap_mutex);
 	INIT_LIST_HEAD(&mapping->private_list);
 	spin_lock_init(&mapping->private_lock);
-	INIT_RAW_PRIO_TREE_ROOT(&mapping->i_mmap);
+	mapping->i_mmap = RB_ROOT;
 	INIT_LIST_HEAD(&mapping->i_mmap_nonlinear);
 }
 EXPORT_SYMBOL(address_space_init_once);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 17fd887c798f..f33145c84222 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -399,7 +399,7 @@ struct inodes_stat_t {
 #include <linux/cache.h>
 #include <linux/list.h>
 #include <linux/radix-tree.h>
-#include <linux/prio_tree.h>
+#include <linux/rbtree.h>
 #include <linux/init.h>
 #include <linux/pid.h>
 #include <linux/bug.h>
@@ -658,7 +658,7 @@ struct address_space {
 	struct radix_tree_root	page_tree;	/* radix tree of all pages */
 	spinlock_t		tree_lock;	/* and lock protecting it */
 	unsigned int		i_mmap_writable;/* count VM_SHARED mappings */
-	struct prio_tree_root	i_mmap;		/* tree of private and shared mappings */
+	struct rb_root		i_mmap;		/* tree of private and shared mappings */
 	struct list_head	i_mmap_nonlinear;/*list VM_NONLINEAR mappings */
 	struct mutex		i_mmap_mutex;	/* protect tree, count, list */
 	/* Protected by tree_lock together with the radix tree */
@@ -730,7 +730,7 @@ int mapping_tagged(struct address_space *mapping, int tag);
  */
 static inline int mapping_mapped(struct address_space *mapping)
 {
-	return	!prio_tree_empty(&mapping->i_mmap) ||
+	return	!RB_EMPTY_ROOT(&mapping->i_mmap) ||
 		!list_empty(&mapping->i_mmap_nonlinear);
 }
 
diff --git a/include/linux/interval_tree_generic.h b/include/linux/interval_tree_generic.h
new file mode 100644
index 000000000000..46232114dde0
--- /dev/null
+++ b/include/linux/interval_tree_generic.h
@@ -0,0 +1,189 @@
+/*
+  Interval Trees
+  (C) 2012  Michel Lespinasse <walken@google.com>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  include/linux/interval_tree_generic.h
+*/
+
+/*
+ * Template for implementing interval trees
+ *
+ * ITSTRUCT:   struct type of the interval tree nodes
+ * ITRB:       name of struct rb_node field within ITSTRUCT
+ * ITTYPE:     type of the interval endpoints
+ * ITSUBTREE:  name of ITTYPE field within ITSTRUCT holding last-in-subtree
+ * ITSTART(n): start endpoint of ITSTRUCT node n
+ * ITLAST(n):  last endpoint of ITSTRUCT node n
+ * ITSTATIC:   'static' or empty
+ * ITPREFIX:   prefix to use for the inline tree definitions
+ *
+ * Note - before using this, please consider if non-generic version
+ * (interval_tree.h) would work for you...
+ */
+
+#define INTERVAL_TREE_DEFINE(ITSTRUCT, ITRB, ITTYPE, ITSUBTREE,		      \
+			     ITSTART, ITLAST, ITSTATIC, ITPREFIX)	      \
+									      \
+/* Callbacks for augmented rbtree insert and remove */			      \
+									      \
+static inline ITTYPE ITPREFIX ## _compute_subtree_last(ITSTRUCT *node)	      \
+{									      \
+	ITTYPE max = ITLAST(node), subtree_last;			      \
+	if (node->ITRB.rb_left) {					      \
+		subtree_last = rb_entry(node->ITRB.rb_left,		      \
+					ITSTRUCT, ITRB)->ITSUBTREE;	      \
+		if (max < subtree_last)					      \
+			max = subtree_last;				      \
+	}								      \
+	if (node->ITRB.rb_right) {					      \
+		subtree_last = rb_entry(node->ITRB.rb_right,		      \
+					ITSTRUCT, ITRB)->ITSUBTREE;	      \
+		if (max < subtree_last)					      \
+			max = subtree_last;				      \
+	}								      \
+	return max;							      \
+}									      \
+									      \
+RB_DECLARE_CALLBACKS(static, ITPREFIX ## _augment, ITSTRUCT, ITRB,	      \
+		     ITTYPE, ITSUBTREE, ITPREFIX ## _compute_subtree_last)    \
+									      \
+/* Insert / remove interval nodes from the tree */			      \
+									      \
+ITSTATIC void ITPREFIX ## _insert(ITSTRUCT *node, struct rb_root *root)	      \
+{									      \
+	struct rb_node **link = &root->rb_node, *rb_parent = NULL;	      \
+	ITTYPE start = ITSTART(node), last = ITLAST(node);		      \
+	ITSTRUCT *parent;						      \
+									      \
+	while (*link) {							      \
+		rb_parent = *link;					      \
+		parent = rb_entry(rb_parent, ITSTRUCT, ITRB);		      \
+		if (parent->ITSUBTREE < last)				      \
+			parent->ITSUBTREE = last;			      \
+		if (start < ITSTART(parent))				      \
+			link = &parent->ITRB.rb_left;			      \
+		else							      \
+			link = &parent->ITRB.rb_right;			      \
+	}								      \
+									      \
+	node->ITSUBTREE = last;						      \
+	rb_link_node(&node->ITRB, rb_parent, link);			      \
+	rb_insert_augmented(&node->ITRB, root, &ITPREFIX ## _augment);	      \
+}									      \
+									      \
+ITSTATIC void ITPREFIX ## _remove(ITSTRUCT *node, struct rb_root *root)	      \
+{									      \
+	rb_erase_augmented(&node->ITRB, root, &ITPREFIX ## _augment);	      \
+}									      \
+									      \
+/*									      \
+ * Iterate over intervals intersecting [start;last]			      \
+ *									      \
+ * Note that a node's interval intersects [start;last] iff:		      \
+ *   Cond1: ITSTART(node) <= last					      \
+ * and									      \
+ *   Cond2: start <= ITLAST(node)					      \
+ */									      \
+									      \
+static ITSTRUCT *							      \
+ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last)	      \
+{									      \
+	while (true) {							      \
+		/*							      \
+		 * Loop invariant: start <= node->ITSUBTREE		      \
+		 * (Cond2 is satisfied by one of the subtree nodes)	      \
+		 */							      \
+		if (node->ITRB.rb_left) {				      \
+			ITSTRUCT *left = rb_entry(node->ITRB.rb_left,	      \
+						  ITSTRUCT, ITRB);	      \
+			if (start <= left->ITSUBTREE) {			      \
+				/*					      \
+				 * Some nodes in left subtree satisfy Cond2.  \
+				 * Iterate to find the leftmost such node N.  \
+				 * If it also satisfies Cond1, that's the     \
+				 * match we are looking for. Otherwise, there \
+				 * is no matching interval as nodes to the    \
+				 * right of N can't satisfy Cond1 either.     \
+				 */					      \
+				node = left;				      \
+				continue;				      \
+			}						      \
+		}							      \
+		if (ITSTART(node) <= last) {		/* Cond1 */	      \
+			if (start <= ITLAST(node))	/* Cond2 */	      \
+				return node;	/* node is leftmost match */  \
+			if (node->ITRB.rb_right) {			      \
+				node = rb_entry(node->ITRB.rb_right,	      \
+						ITSTRUCT, ITRB);	      \
+				if (start <= node->ITSUBTREE)		      \
+					continue;			      \
+			}						      \
+		}							      \
+		return NULL;	/* No match */				      \
+	}								      \
+}									      \
+									      \
+ITSTATIC ITSTRUCT *							      \
+ITPREFIX ## _iter_first(struct rb_root *root, ITTYPE start, ITTYPE last)      \
+{									      \
+	ITSTRUCT *node;							      \
+									      \
+	if (!root->rb_node)						      \
+		return NULL;						      \
+	node = rb_entry(root->rb_node, ITSTRUCT, ITRB);			      \
+	if (node->ITSUBTREE < start)					      \
+		return NULL;						      \
+	return ITPREFIX ## _subtree_search(node, start, last);		      \
+}									      \
+									      \
+ITSTATIC ITSTRUCT *							      \
+ITPREFIX ## _iter_next(ITSTRUCT *node, ITTYPE start, ITTYPE last)	      \
+{									      \
+	struct rb_node *rb = node->ITRB.rb_right, *prev;		      \
+									      \
+	while (true) {							      \
+		/*							      \
+		 * Loop invariants:					      \
+		 *   Cond1: ITSTART(node) <= last			      \
+		 *   rb == node->ITRB.rb_right				      \
+		 *							      \
+		 * First, search right subtree if suitable		      \
+		 */							      \
+		if (rb) {						      \
+			ITSTRUCT *right = rb_entry(rb, ITSTRUCT, ITRB);	      \
+			if (start <= right->ITSUBTREE)			      \
+				return ITPREFIX ## _subtree_search(right,     \
+								start, last); \
+		}							      \
+									      \
+		/* Move up the tree until we come from a node's left child */ \
+		do {							      \
+			rb = rb_parent(&node->ITRB);			      \
+			if (!rb)					      \
+				return NULL;				      \
+			prev = &node->ITRB;				      \
+			node = rb_entry(rb, ITSTRUCT, ITRB);		      \
+			rb = node->ITRB.rb_right;			      \
+		} while (prev == rb);					      \
+									      \
+		/* Check if the node intersects [start;last] */		      \
+		if (last < ITSTART(node))		/* !Cond1 */	      \
+			return NULL;					      \
+		else if (start <= ITLAST(node))		/* Cond2 */	      \
+			return node;					      \
+	}								      \
+}
diff --git a/include/linux/mm.h b/include/linux/mm.h
index b36d08ce5c57..38af0048037f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -10,7 +10,6 @@
 #include <linux/list.h>
 #include <linux/mmzone.h>
 #include <linux/rbtree.h>
-#include <linux/prio_tree.h>
 #include <linux/atomic.h>
 #include <linux/debug_locks.h>
 #include <linux/mm_types.h>
@@ -1336,22 +1335,27 @@ extern void zone_pcp_update(struct zone *zone);
 extern atomic_long_t mmap_pages_allocated;
 extern int nommu_shrink_inode_mappings(struct inode *, size_t, size_t);
 
-/* prio_tree.c */
-void vma_prio_tree_add(struct vm_area_struct *, struct vm_area_struct *old);
-void vma_prio_tree_insert(struct vm_area_struct *, struct prio_tree_root *);
-void vma_prio_tree_remove(struct vm_area_struct *, struct prio_tree_root *);
-struct vm_area_struct *vma_prio_tree_next(struct vm_area_struct *vma,
-	struct prio_tree_iter *iter);
-
-#define vma_prio_tree_foreach(vma, iter, root, begin, end)	\
-	for (prio_tree_iter_init(iter, root, begin, end), vma = NULL;	\
-		(vma = vma_prio_tree_next(vma, iter)); )
+/* interval_tree.c */
+void vma_interval_tree_insert(struct vm_area_struct *node,
+			      struct rb_root *root);
+void vma_interval_tree_insert_after(struct vm_area_struct *node,
+				    struct vm_area_struct *prev,
+				    struct rb_root *root);
+void vma_interval_tree_remove(struct vm_area_struct *node,
+			      struct rb_root *root);
+struct vm_area_struct *vma_interval_tree_iter_first(struct rb_root *root,
+				unsigned long start, unsigned long last);
+struct vm_area_struct *vma_interval_tree_iter_next(struct vm_area_struct *node,
+				unsigned long start, unsigned long last);
+
+#define vma_interval_tree_foreach(vma, root, start, last)		\
+	for (vma = vma_interval_tree_iter_first(root, start, last);	\
+	     vma; vma = vma_interval_tree_iter_next(vma, start, last))
 
 static inline void vma_nonlinear_insert(struct vm_area_struct *vma,
 					struct list_head *list)
 {
-	vma->shared.vm_set.parent = NULL;
-	list_add_tail(&vma->shared.vm_set.list, list);
+	list_add_tail(&vma->shared.nonlinear, list);
 }
 
 /* mmap.c */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 704a626d94a0..a198a4085cc1 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -6,7 +6,6 @@
 #include <linux/threads.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
-#include <linux/prio_tree.h>
 #include <linux/rbtree.h>
 #include <linux/rwsem.h>
 #include <linux/completion.h>
@@ -224,18 +223,15 @@ struct vm_area_struct {
 
 	/*
 	 * For areas with an address space and backing store,
-	 * linkage into the address_space->i_mmap prio tree, or
-	 * linkage to the list of like vmas hanging off its node, or
+	 * linkage into the address_space->i_mmap interval tree, or
 	 * linkage of vma in the address_space->i_mmap_nonlinear list.
 	 */
 	union {
 		struct {
-			struct list_head list;
-			void *parent;	/* aligns with prio_tree_node parent */
-			struct vm_area_struct *head;
-		} vm_set;
-
-		struct raw_prio_tree_node prio_tree_node;
+			struct rb_node rb;
+			unsigned long rb_subtree_last;
+		} linear;
+		struct list_head nonlinear;
 	} shared;
 
 	/*
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 985be4d80fe8..c06930e80ba1 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -754,7 +754,6 @@ static struct vma_info *
 __find_next_vma_info(struct address_space *mapping, struct list_head *head,
 			struct vma_info *vi, loff_t offset, bool is_register)
 {
-	struct prio_tree_iter iter;
 	struct vm_area_struct *vma;
 	struct vma_info *tmpvi;
 	unsigned long pgoff;
@@ -763,7 +762,7 @@ __find_next_vma_info(struct address_space *mapping, struct list_head *head,
 
 	pgoff = offset >> PAGE_SHIFT;
 
-	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		if (!valid_vma(vma, is_register))
 			continue;
 
diff --git a/kernel/fork.c b/kernel/fork.c
index f00e319d8376..4e064731971e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -425,7 +425,12 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 				mapping->i_mmap_writable++;
 			flush_dcache_mmap_lock(mapping);
 			/* insert tmp into the share list, just after mpnt */
-			vma_prio_tree_add(tmp, mpnt);
+			if (unlikely(tmp->vm_flags & VM_NONLINEAR))
+				vma_nonlinear_insert(tmp,
+						&mapping->i_mmap_nonlinear);
+			else
+				vma_interval_tree_insert_after(tmp, mpnt,
+							&mapping->i_mmap);
 			flush_dcache_mmap_unlock(mapping);
 			mutex_unlock(&mapping->i_mmap_mutex);
 		}
diff --git a/lib/interval_tree.c b/lib/interval_tree.c
index 6fd540b1e499..e6eb406f2d65 100644
--- a/lib/interval_tree.c
+++ b/lib/interval_tree.c
@@ -1,159 +1,10 @@
 #include <linux/init.h>
 #include <linux/interval_tree.h>
+#include <linux/interval_tree_generic.h>
 
-/* Callbacks for augmented rbtree insert and remove */
+#define START(node) ((node)->start)
+#define LAST(node)  ((node)->last)
 
-static inline unsigned long
-compute_subtree_last(struct interval_tree_node *node)
-{
-	unsigned long max = node->last, subtree_last;
-	if (node->rb.rb_left) {
-		subtree_last = rb_entry(node->rb.rb_left,
-			struct interval_tree_node, rb)->__subtree_last;
-		if (max < subtree_last)
-			max = subtree_last;
-	}
-	if (node->rb.rb_right) {
-		subtree_last = rb_entry(node->rb.rb_right,
-			struct interval_tree_node, rb)->__subtree_last;
-		if (max < subtree_last)
-			max = subtree_last;
-	}
-	return max;
-}
-
-RB_DECLARE_CALLBACKS(static, augment_callbacks, struct interval_tree_node, rb,
-		     unsigned long, __subtree_last, compute_subtree_last)
-
-/* Insert / remove interval nodes from the tree */
-
-void interval_tree_insert(struct interval_tree_node *node,
-			  struct rb_root *root)
-{
-	struct rb_node **link = &root->rb_node, *rb_parent = NULL;
-	unsigned long start = node->start, last = node->last;
-	struct interval_tree_node *parent;
-
-	while (*link) {
-		rb_parent = *link;
-		parent = rb_entry(rb_parent, struct interval_tree_node, rb);
-		if (parent->__subtree_last < last)
-			parent->__subtree_last = last;
-		if (start < parent->start)
-			link = &parent->rb.rb_left;
-		else
-			link = &parent->rb.rb_right;
-	}
-
-	node->__subtree_last = last;
-	rb_link_node(&node->rb, rb_parent, link);
-	rb_insert_augmented(&node->rb, root, &augment_callbacks);
-}
-
-void interval_tree_remove(struct interval_tree_node *node,
-			  struct rb_root *root)
-{
-	rb_erase_augmented(&node->rb, root, &augment_callbacks);
-}
-
-/*
- * Iterate over intervals intersecting [start;last]
- *
- * Note that a node's interval intersects [start;last] iff:
- *   Cond1: node->start <= last
- * and
- *   Cond2: start <= node->last
- */
-
-static struct interval_tree_node *
-subtree_search(struct interval_tree_node *node,
-	       unsigned long start, unsigned long last)
-{
-	while (true) {
-		/*
-		 * Loop invariant: start <= node->__subtree_last
-		 * (Cond2 is satisfied by one of the subtree nodes)
-		 */
-		if (node->rb.rb_left) {
-			struct interval_tree_node *left =
-				rb_entry(node->rb.rb_left,
-					 struct interval_tree_node, rb);
-			if (start <= left->__subtree_last) {
-				/*
-				 * Some nodes in left subtree satisfy Cond2.
-				 * Iterate to find the leftmost such node N.
-				 * If it also satisfies Cond1, that's the match
-				 * we are looking for. Otherwise, there is no
-				 * matching interval as nodes to the right of N
-				 * can't satisfy Cond1 either.
-				 */
-				node = left;
-				continue;
-			}
-		}
-		if (node->start <= last) {		/* Cond1 */
-			if (start <= node->last)	/* Cond2 */
-				return node;	/* node is leftmost match */
-			if (node->rb.rb_right) {
-				node = rb_entry(node->rb.rb_right,
-					struct interval_tree_node, rb);
-				if (start <= node->__subtree_last)
-					continue;
-			}
-		}
-		return NULL;	/* No match */
-	}
-}
-
-struct interval_tree_node *
-interval_tree_iter_first(struct rb_root *root,
-			 unsigned long start, unsigned long last)
-{
-	struct interval_tree_node *node;
-
-	if (!root->rb_node)
-		return NULL;
-	node = rb_entry(root->rb_node, struct interval_tree_node, rb);
-	if (node->__subtree_last < start)
-		return NULL;
-	return subtree_search(node, start, last);
-}
-
-struct interval_tree_node *
-interval_tree_iter_next(struct interval_tree_node *node,
-			unsigned long start, unsigned long last)
-{
-	struct rb_node *rb = node->rb.rb_right, *prev;
-
-	while (true) {
-		/*
-		 * Loop invariants:
-		 *   Cond1: node->start <= last
-		 *   rb == node->rb.rb_right
-		 *
-		 * First, search right subtree if suitable
-		 */
-		if (rb) {
-			struct interval_tree_node *right =
-				rb_entry(rb, struct interval_tree_node, rb);
-			if (start <= right->__subtree_last)
-				return subtree_search(right, start, last);
-		}
-
-		/* Move up the tree until we come from a node's left child */
-		do {
-			rb = rb_parent(&node->rb);
-			if (!rb)
-				return NULL;
-			prev = &node->rb;
-			node = rb_entry(rb, struct interval_tree_node, rb);
-			rb = node->rb.rb_right;
-		} while (prev == rb);
-
-		/* Check if the node intersects [start;last] */
-		if (last < node->start)		/* !Cond1 */
-			return NULL;
-		else if (start <= node->last)	/* Cond2 */
-			return node;
-	}
-}
+INTERVAL_TREE_DEFINE(struct interval_tree_node, rb,
+		     unsigned long, __subtree_last,
+		     START, LAST,, interval_tree)
diff --git a/lib/prio_tree.c b/lib/prio_tree.c
index 4e0d2edff2b4..bba37148c15e 100644
--- a/lib/prio_tree.c
+++ b/lib/prio_tree.c
@@ -44,27 +44,12 @@
  * The following macros are used for implementing prio_tree for i_mmap
  */
 
-#define RADIX_INDEX(vma)  ((vma)->vm_pgoff)
-#define VMA_SIZE(vma)	  (((vma)->vm_end - (vma)->vm_start) >> PAGE_SHIFT)
-/* avoid overflow */
-#define HEAP_INDEX(vma)	  ((vma)->vm_pgoff + (VMA_SIZE(vma) - 1))
-
-
 static void get_index(const struct prio_tree_root *root,
     const struct prio_tree_node *node,
     unsigned long *radix, unsigned long *heap)
 {
-	if (root->raw) {
-		struct vm_area_struct *vma = prio_tree_entry(
-		    node, struct vm_area_struct, shared.prio_tree_node);
-
-		*radix = RADIX_INDEX(vma);
-		*heap = HEAP_INDEX(vma);
-	}
-	else {
-		*radix = node->start;
-		*heap = node->last;
-	}
+	*radix = node->start;
+	*heap = node->last;
 }
 
 static unsigned long index_bits_to_maxindex[BITS_PER_LONG];
diff --git a/mm/Makefile b/mm/Makefile
index 2e2fbbefb99f..fd9cc646db94 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -14,9 +14,9 @@ endif
 obj-y			:= filemap.o mempool.o oom_kill.o fadvise.o \
 			   maccess.o page_alloc.o page-writeback.o \
 			   readahead.o swap.o truncate.o vmscan.o shmem.o \
-			   prio_tree.o util.o mmzone.o vmstat.o backing-dev.o \
+			   util.o mmzone.o vmstat.o backing-dev.o \
 			   page_isolation.o mm_init.o mmu_context.o percpu.o \
-			   compaction.o $(mmu-y)
+			   compaction.o interval_tree.o $(mmu-y)
 obj-y += init-mm.o
 
 ifdef CONFIG_NO_BOOTMEM
diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c
index 213ca1f53409..c126d3ea450e 100644
--- a/mm/filemap_xip.c
+++ b/mm/filemap_xip.c
@@ -167,7 +167,6 @@ __xip_unmap (struct address_space * mapping,
 {
 	struct vm_area_struct *vma;
 	struct mm_struct *mm;
-	struct prio_tree_iter iter;
 	unsigned long address;
 	pte_t *pte;
 	pte_t pteval;
@@ -184,7 +183,7 @@ __xip_unmap (struct address_space * mapping,
 
 retry:
 	mutex_lock(&mapping->i_mmap_mutex);
-	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		mm = vma->vm_mm;
 		address = vma->vm_start +
 			((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
diff --git a/mm/fremap.c b/mm/fremap.c
index 9ed4fd432467..2e582feb9430 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -213,7 +213,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 		mutex_lock(&mapping->i_mmap_mutex);
 		flush_dcache_mmap_lock(mapping);
 		vma->vm_flags |= VM_NONLINEAR;
-		vma_prio_tree_remove(vma, &mapping->i_mmap);
+		vma_interval_tree_remove(vma, &mapping->i_mmap);
 		vma_nonlinear_insert(vma, &mapping->i_mmap_nonlinear);
 		flush_dcache_mmap_unlock(mapping);
 		mutex_unlock(&mapping->i_mmap_mutex);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index e198831276a3..ec50883d0c32 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2408,7 +2408,6 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct hstate *h = hstate_vma(vma);
 	struct vm_area_struct *iter_vma;
 	struct address_space *mapping;
-	struct prio_tree_iter iter;
 	pgoff_t pgoff;
 
 	/*
@@ -2425,7 +2424,7 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
 	 * __unmap_hugepage_range() is called as the lock is already held
 	 */
 	mutex_lock(&mapping->i_mmap_mutex);
-	vma_prio_tree_foreach(iter_vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(iter_vma, &mapping->i_mmap, pgoff, pgoff) {
 		/* Do not unmap the current VMA */
 		if (iter_vma == vma)
 			continue;
diff --git a/mm/interval_tree.c b/mm/interval_tree.c
new file mode 100644
index 000000000000..4ab7b9ec3a56
--- /dev/null
+++ b/mm/interval_tree.c
@@ -0,0 +1,59 @@
+/*
+ * mm/interval_tree.c - interval tree for mapping->i_mmap
+ *
+ * Copyright (C) 2012, Michel Lespinasse <walken@google.com>
+ *
+ * This file is released under the GPL v2.
+ */
+
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/interval_tree_generic.h>
+
+static inline unsigned long vma_start_pgoff(struct vm_area_struct *v)
+{
+	return v->vm_pgoff;
+}
+
+static inline unsigned long vma_last_pgoff(struct vm_area_struct *v)
+{
+	return v->vm_pgoff + ((v->vm_end - v->vm_start) >> PAGE_SHIFT) - 1;
+}
+
+INTERVAL_TREE_DEFINE(struct vm_area_struct, shared.linear.rb,
+		     unsigned long, shared.linear.rb_subtree_last,
+		     vma_start_pgoff, vma_last_pgoff,, vma_interval_tree)
+
+/* Insert node immediately after prev in the interval tree */
+void vma_interval_tree_insert_after(struct vm_area_struct *node,
+				    struct vm_area_struct *prev,
+				    struct rb_root *root)
+{
+	struct rb_node **link;
+	struct vm_area_struct *parent;
+	unsigned long last = vma_last_pgoff(node);
+
+	VM_BUG_ON(vma_start_pgoff(node) != vma_start_pgoff(prev));
+
+	if (!prev->shared.linear.rb.rb_right) {
+		parent = prev;
+		link = &prev->shared.linear.rb.rb_right;
+	} else {
+		parent = rb_entry(prev->shared.linear.rb.rb_right,
+				  struct vm_area_struct, shared.linear.rb);
+		if (parent->shared.linear.rb_subtree_last < last)
+			parent->shared.linear.rb_subtree_last = last;
+		while (parent->shared.linear.rb.rb_left) {
+			parent = rb_entry(parent->shared.linear.rb.rb_left,
+				struct vm_area_struct, shared.linear.rb);
+			if (parent->shared.linear.rb_subtree_last < last)
+				parent->shared.linear.rb_subtree_last = last;
+		}
+		link = &parent->shared.linear.rb.rb_left;
+	}
+
+	node->shared.linear.rb_subtree_last = last;
+	rb_link_node(&node->shared.linear.rb, &parent->shared.linear.rb, link);
+	rb_insert_augmented(&node->shared.linear.rb, root,
+			    &vma_interval_tree_augment);
+}
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index ab1e7145e290..65d5e8d43633 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -431,7 +431,6 @@ static void collect_procs_file(struct page *page, struct list_head *to_kill,
 {
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
-	struct prio_tree_iter iter;
 	struct address_space *mapping = page->mapping;
 
 	mutex_lock(&mapping->i_mmap_mutex);
@@ -442,7 +441,7 @@ static void collect_procs_file(struct page *page, struct list_head *to_kill,
 		if (!task_early_kill(tsk))
 			continue;
 
-		vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff,
+		vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff,
 				      pgoff) {
 			/*
 			 * Send early kill signal to tasks where a vma covers
diff --git a/mm/memory.c b/mm/memory.c
index 2466d1250231..51dd12902789 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2790,14 +2790,13 @@ static void unmap_mapping_range_vma(struct vm_area_struct *vma,
 	zap_page_range_single(vma, start_addr, end_addr - start_addr, details);
 }
 
-static inline void unmap_mapping_range_tree(struct prio_tree_root *root,
+static inline void unmap_mapping_range_tree(struct rb_root *root,
 					    struct zap_details *details)
 {
 	struct vm_area_struct *vma;
-	struct prio_tree_iter iter;
 	pgoff_t vba, vea, zba, zea;
 
-	vma_prio_tree_foreach(vma, &iter, root,
+	vma_interval_tree_foreach(vma, root,
 			details->first_index, details->last_index) {
 
 		vba = vma->vm_pgoff;
@@ -2828,7 +2827,7 @@ static inline void unmap_mapping_range_list(struct list_head *head,
 	 * across *all* the pages in each nonlinear VMA, not just the pages
 	 * whose virtual address lies outside the file truncation point.
 	 */
-	list_for_each_entry(vma, head, shared.vm_set.list) {
+	list_for_each_entry(vma, head, shared.nonlinear) {
 		details->nonlinear_vma = vma;
 		unmap_mapping_range_vma(vma, vma->vm_start, vma->vm_end, details);
 	}
@@ -2872,7 +2871,7 @@ void unmap_mapping_range(struct address_space *mapping,
 
 
 	mutex_lock(&mapping->i_mmap_mutex);
-	if (unlikely(!prio_tree_empty(&mapping->i_mmap)))
+	if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap)))
 		unmap_mapping_range_tree(&mapping->i_mmap, &details);
 	if (unlikely(!list_empty(&mapping->i_mmap_nonlinear)))
 		unmap_mapping_range_list(&mapping->i_mmap_nonlinear, &details);
diff --git a/mm/mmap.c b/mm/mmap.c
index 3edfcdfa42d9..cebc346ba0db 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -199,14 +199,14 @@ static void __remove_shared_vm_struct(struct vm_area_struct *vma,
 
 	flush_dcache_mmap_lock(mapping);
 	if (unlikely(vma->vm_flags & VM_NONLINEAR))
-		list_del_init(&vma->shared.vm_set.list);
+		list_del_init(&vma->shared.nonlinear);
 	else
-		vma_prio_tree_remove(vma, &mapping->i_mmap);
+		vma_interval_tree_remove(vma, &mapping->i_mmap);
 	flush_dcache_mmap_unlock(mapping);
 }
 
 /*
- * Unlink a file-based vm structure from its prio_tree, to hide
+ * Unlink a file-based vm structure from its interval tree, to hide
  * vma from rmap and vmtruncate before freeing its page tables.
  */
 void unlink_file_vma(struct vm_area_struct *vma)
@@ -417,7 +417,7 @@ static void __vma_link_file(struct vm_area_struct *vma)
 		if (unlikely(vma->vm_flags & VM_NONLINEAR))
 			vma_nonlinear_insert(vma, &mapping->i_mmap_nonlinear);
 		else
-			vma_prio_tree_insert(vma, &mapping->i_mmap);
+			vma_interval_tree_insert(vma, &mapping->i_mmap);
 		flush_dcache_mmap_unlock(mapping);
 	}
 }
@@ -455,7 +455,7 @@ static void vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
 
 /*
  * Helper for vma_adjust() in the split_vma insert case: insert a vma into the
- * mm's list and rbtree.  It has already been inserted into the prio_tree.
+ * mm's list and rbtree.  It has already been inserted into the interval tree.
  */
 static void __insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
 {
@@ -496,7 +496,7 @@ int vma_adjust(struct vm_area_struct *vma, unsigned long start,
 	struct vm_area_struct *next = vma->vm_next;
 	struct vm_area_struct *importer = NULL;
 	struct address_space *mapping = NULL;
-	struct prio_tree_root *root = NULL;
+	struct rb_root *root = NULL;
 	struct anon_vma *anon_vma = NULL;
 	struct file *file = vma->vm_file;
 	long adjust_next = 0;
@@ -559,7 +559,7 @@ again:			remove_next = 1 + (end > next->vm_end);
 		mutex_lock(&mapping->i_mmap_mutex);
 		if (insert) {
 			/*
-			 * Put into prio_tree now, so instantiated pages
+			 * Put into interval tree now, so instantiated pages
 			 * are visible to arm/parisc __flush_dcache_page
 			 * throughout; but we cannot insert into address
 			 * space until vma start or end is updated.
@@ -583,9 +583,9 @@ again:			remove_next = 1 + (end > next->vm_end);
 
 	if (root) {
 		flush_dcache_mmap_lock(mapping);
-		vma_prio_tree_remove(vma, root);
+		vma_interval_tree_remove(vma, root);
 		if (adjust_next)
-			vma_prio_tree_remove(next, root);
+			vma_interval_tree_remove(next, root);
 	}
 
 	vma->vm_start = start;
@@ -598,8 +598,8 @@ again:			remove_next = 1 + (end > next->vm_end);
 
 	if (root) {
 		if (adjust_next)
-			vma_prio_tree_insert(next, root);
-		vma_prio_tree_insert(vma, root);
+			vma_interval_tree_insert(next, root);
+		vma_interval_tree_insert(vma, root);
 		flush_dcache_mmap_unlock(mapping);
 	}
 
diff --git a/mm/nommu.c b/mm/nommu.c
index d4b0c10872de..935de1a84233 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -698,7 +698,7 @@ static void add_vma_to_mm(struct mm_struct *mm, struct vm_area_struct *vma)
 
 		mutex_lock(&mapping->i_mmap_mutex);
 		flush_dcache_mmap_lock(mapping);
-		vma_prio_tree_insert(vma, &mapping->i_mmap);
+		vma_interval_tree_insert(vma, &mapping->i_mmap);
 		flush_dcache_mmap_unlock(mapping);
 		mutex_unlock(&mapping->i_mmap_mutex);
 	}
@@ -764,7 +764,7 @@ static void delete_vma_from_mm(struct vm_area_struct *vma)
 
 		mutex_lock(&mapping->i_mmap_mutex);
 		flush_dcache_mmap_lock(mapping);
-		vma_prio_tree_remove(vma, &mapping->i_mmap);
+		vma_interval_tree_remove(vma, &mapping->i_mmap);
 		flush_dcache_mmap_unlock(mapping);
 		mutex_unlock(&mapping->i_mmap_mutex);
 	}
@@ -2047,7 +2047,6 @@ int nommu_shrink_inode_mappings(struct inode *inode, size_t size,
 				size_t newsize)
 {
 	struct vm_area_struct *vma;
-	struct prio_tree_iter iter;
 	struct vm_region *region;
 	pgoff_t low, high;
 	size_t r_size, r_top;
@@ -2059,8 +2058,7 @@ int nommu_shrink_inode_mappings(struct inode *inode, size_t size,
 	mutex_lock(&inode->i_mapping->i_mmap_mutex);
 
 	/* search for VMAs that fall within the dead zone */
-	vma_prio_tree_foreach(vma, &iter, &inode->i_mapping->i_mmap,
-			      low, high) {
+	vma_interval_tree_foreach(vma, &inode->i_mapping->i_mmap, low, high) {
 		/* found one - only interested if it's shared out of the page
 		 * cache */
 		if (vma->vm_flags & VM_SHARED) {
@@ -2076,8 +2074,8 @@ int nommu_shrink_inode_mappings(struct inode *inode, size_t size,
 	 * we don't check for any regions that start beyond the EOF as there
 	 * shouldn't be any
 	 */
-	vma_prio_tree_foreach(vma, &iter, &inode->i_mapping->i_mmap,
-			      0, ULONG_MAX) {
+	vma_interval_tree_foreach(vma, &inode->i_mapping->i_mmap,
+				  0, ULONG_MAX) {
 		if (!(vma->vm_flags & VM_SHARED))
 			continue;
 
diff --git a/mm/prio_tree.c b/mm/prio_tree.c
deleted file mode 100644
index 799dcfd7cd8c..000000000000
--- a/mm/prio_tree.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * mm/prio_tree.c - priority search tree for mapping->i_mmap
- *
- * Copyright (C) 2004, Rajesh Venkatasubramanian <vrajesh@umich.edu>
- *
- * This file is released under the GPL v2.
- *
- * Based on the radix priority search tree proposed by Edward M. McCreight
- * SIAM Journal of Computing, vol. 14, no.2, pages 257-276, May 1985
- *
- * 02Feb2004	Initial version
- */
-
-#include <linux/mm.h>
-#include <linux/prio_tree.h>
-#include <linux/prefetch.h>
-
-/*
- * See lib/prio_tree.c for details on the general radix priority search tree
- * code.
- */
-
-/*
- * The following #defines are mirrored from lib/prio_tree.c. They're only used
- * for debugging, and should be removed (along with the debugging code using
- * them) when switching also VMAs to the regular prio_tree code.
- */
-
-#define RADIX_INDEX(vma)  ((vma)->vm_pgoff)
-#define VMA_SIZE(vma)	  (((vma)->vm_end - (vma)->vm_start) >> PAGE_SHIFT)
-/* avoid overflow */
-#define HEAP_INDEX(vma)   ((vma)->vm_pgoff + (VMA_SIZE(vma) - 1))
-
-/*
- * Radix priority search tree for address_space->i_mmap
- *
- * For each vma that map a unique set of file pages i.e., unique [radix_index,
- * heap_index] value, we have a corresponding priority search tree node. If
- * multiple vmas have identical [radix_index, heap_index] value, then one of
- * them is used as a tree node and others are stored in a vm_set list. The tree
- * node points to the first vma (head) of the list using vm_set.head.
- *
- * prio_tree_root
- *      |
- *      A       vm_set.head
- *     / \      /
- *    L   R -> H-I-J-K-M-N-O-P-Q-S
- *    ^   ^    <-- vm_set.list -->
- *  tree nodes
- *
- * We need some way to identify whether a vma is a tree node, head of a vm_set
- * list, or just a member of a vm_set list. We cannot use vm_flags to store
- * such information. The reason is, in the above figure, it is possible that
- * vm_flags' of R and H are covered by the different mmap_sems. When R is
- * removed under R->mmap_sem, H replaces R as a tree node. Since we do not hold
- * H->mmap_sem, we cannot use H->vm_flags for marking that H is a tree node now.
- * That's why some trick involving shared.vm_set.parent is used for identifying
- * tree nodes and list head nodes.
- *
- * vma radix priority search tree node rules:
- *
- * vma->shared.vm_set.parent != NULL    ==> a tree node
- *      vma->shared.vm_set.head != NULL ==> list of others mapping same range
- *      vma->shared.vm_set.head == NULL ==> no others map the same range
- *
- * vma->shared.vm_set.parent == NULL
- * 	vma->shared.vm_set.head != NULL ==> list head of vmas mapping same range
- * 	vma->shared.vm_set.head == NULL ==> a list node
- */
-
-/*
- * Add a new vma known to map the same set of pages as the old vma:
- * useful for fork's dup_mmap as well as vma_prio_tree_insert below.
- * Note that it just happens to work correctly on i_mmap_nonlinear too.
- */
-void vma_prio_tree_add(struct vm_area_struct *vma, struct vm_area_struct *old)
-{
-	/* Leave these BUG_ONs till prio_tree patch stabilizes */
-	BUG_ON(RADIX_INDEX(vma) != RADIX_INDEX(old));
-	BUG_ON(HEAP_INDEX(vma) != HEAP_INDEX(old));
-
-	vma->shared.vm_set.head = NULL;
-	vma->shared.vm_set.parent = NULL;
-
-	if (!old->shared.vm_set.parent)
-		list_add(&vma->shared.vm_set.list,
-				&old->shared.vm_set.list);
-	else if (old->shared.vm_set.head)
-		list_add_tail(&vma->shared.vm_set.list,
-				&old->shared.vm_set.head->shared.vm_set.list);
-	else {
-		INIT_LIST_HEAD(&vma->shared.vm_set.list);
-		vma->shared.vm_set.head = old;
-		old->shared.vm_set.head = vma;
-	}
-}
-
-void vma_prio_tree_insert(struct vm_area_struct *vma,
-			  struct prio_tree_root *root)
-{
-	struct prio_tree_node *ptr;
-	struct vm_area_struct *old;
-
-	vma->shared.vm_set.head = NULL;
-
-	ptr = raw_prio_tree_insert(root, &vma->shared.prio_tree_node);
-	if (ptr != (struct prio_tree_node *) &vma->shared.prio_tree_node) {
-		old = prio_tree_entry(ptr, struct vm_area_struct,
-					shared.prio_tree_node);
-		vma_prio_tree_add(vma, old);
-	}
-}
-
-void vma_prio_tree_remove(struct vm_area_struct *vma,
-			  struct prio_tree_root *root)
-{
-	struct vm_area_struct *node, *head, *new_head;
-
-	if (!vma->shared.vm_set.head) {
-		if (!vma->shared.vm_set.parent)
-			list_del_init(&vma->shared.vm_set.list);
-		else
-			raw_prio_tree_remove(root, &vma->shared.prio_tree_node);
-	} else {
-		/* Leave this BUG_ON till prio_tree patch stabilizes */
-		BUG_ON(vma->shared.vm_set.head->shared.vm_set.head != vma);
-		if (vma->shared.vm_set.parent) {
-			head = vma->shared.vm_set.head;
-			if (!list_empty(&head->shared.vm_set.list)) {
-				new_head = list_entry(
-					head->shared.vm_set.list.next,
-					struct vm_area_struct,
-					shared.vm_set.list);
-				list_del_init(&head->shared.vm_set.list);
-			} else
-				new_head = NULL;
-
-			raw_prio_tree_replace(root, &vma->shared.prio_tree_node,
-					&head->shared.prio_tree_node);
-			head->shared.vm_set.head = new_head;
-			if (new_head)
-				new_head->shared.vm_set.head = head;
-
-		} else {
-			node = vma->shared.vm_set.head;
-			if (!list_empty(&vma->shared.vm_set.list)) {
-				new_head = list_entry(
-					vma->shared.vm_set.list.next,
-					struct vm_area_struct,
-					shared.vm_set.list);
-				list_del_init(&vma->shared.vm_set.list);
-				node->shared.vm_set.head = new_head;
-				new_head->shared.vm_set.head = node;
-			} else
-				node->shared.vm_set.head = NULL;
-		}
-	}
-}
-
-/*
- * Helper function to enumerate vmas that map a given file page or a set of
- * contiguous file pages. The function returns vmas that at least map a single
- * page in the given range of contiguous file pages.
- */
-struct vm_area_struct *vma_prio_tree_next(struct vm_area_struct *vma,
-					struct prio_tree_iter *iter)
-{
-	struct prio_tree_node *ptr;
-	struct vm_area_struct *next;
-
-	if (!vma) {
-		/*
-		 * First call is with NULL vma
-		 */
-		ptr = prio_tree_next(iter);
-		if (ptr) {
-			next = prio_tree_entry(ptr, struct vm_area_struct,
-						shared.prio_tree_node);
-			prefetch(next->shared.vm_set.head);
-			return next;
-		} else
-			return NULL;
-	}
-
-	if (vma->shared.vm_set.parent) {
-		if (vma->shared.vm_set.head) {
-			next = vma->shared.vm_set.head;
-			prefetch(next->shared.vm_set.list.next);
-			return next;
-		}
-	} else {
-		next = list_entry(vma->shared.vm_set.list.next,
-				struct vm_area_struct, shared.vm_set.list);
-		if (!next->shared.vm_set.head) {
-			prefetch(next->shared.vm_set.list.next);
-			return next;
-		}
-	}
-
-	ptr = prio_tree_next(iter);
-	if (ptr) {
-		next = prio_tree_entry(ptr, struct vm_area_struct,
-					shared.prio_tree_node);
-		prefetch(next->shared.vm_set.head);
-		return next;
-	} else
-		return NULL;
-}
diff --git a/mm/rmap.c b/mm/rmap.c
index 0f3b7cda2a24..7b5b51d25fc5 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -820,7 +820,6 @@ static int page_referenced_file(struct page *page,
 	struct address_space *mapping = page->mapping;
 	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct vm_area_struct *vma;
-	struct prio_tree_iter iter;
 	int referenced = 0;
 
 	/*
@@ -846,7 +845,7 @@ static int page_referenced_file(struct page *page,
 	 */
 	mapcount = page_mapcount(page);
 
-	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		unsigned long address = vma_address(page, vma);
 		if (address == -EFAULT)
 			continue;
@@ -945,13 +944,12 @@ static int page_mkclean_file(struct address_space *mapping, struct page *page)
 {
 	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct vm_area_struct *vma;
-	struct prio_tree_iter iter;
 	int ret = 0;
 
 	BUG_ON(PageAnon(page));
 
 	mutex_lock(&mapping->i_mmap_mutex);
-	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		if (vma->vm_flags & VM_SHARED) {
 			unsigned long address = vma_address(page, vma);
 			if (address == -EFAULT)
@@ -1547,7 +1545,6 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
 	struct address_space *mapping = page->mapping;
 	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct vm_area_struct *vma;
-	struct prio_tree_iter iter;
 	int ret = SWAP_AGAIN;
 	unsigned long cursor;
 	unsigned long max_nl_cursor = 0;
@@ -1555,7 +1552,7 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
 	unsigned int mapcount;
 
 	mutex_lock(&mapping->i_mmap_mutex);
-	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		unsigned long address = vma_address(page, vma);
 		if (address == -EFAULT)
 			continue;
@@ -1576,7 +1573,7 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
 		goto out;
 
 	list_for_each_entry(vma, &mapping->i_mmap_nonlinear,
-						shared.vm_set.list) {
+							shared.nonlinear) {
 		cursor = (unsigned long) vma->vm_private_data;
 		if (cursor > max_nl_cursor)
 			max_nl_cursor = cursor;
@@ -1608,7 +1605,7 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
 
 	do {
 		list_for_each_entry(vma, &mapping->i_mmap_nonlinear,
-						shared.vm_set.list) {
+							shared.nonlinear) {
 			cursor = (unsigned long) vma->vm_private_data;
 			while ( cursor < max_nl_cursor &&
 				cursor < vma->vm_end - vma->vm_start) {
@@ -1631,7 +1628,7 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
 	 * in locked vmas).  Reset cursor on all unreserved nonlinear
 	 * vmas, now forgetting on which ones it had fallen behind.
 	 */
-	list_for_each_entry(vma, &mapping->i_mmap_nonlinear, shared.vm_set.list)
+	list_for_each_entry(vma, &mapping->i_mmap_nonlinear, shared.nonlinear)
 		vma->vm_private_data = NULL;
 out:
 	mutex_unlock(&mapping->i_mmap_mutex);
@@ -1748,13 +1745,12 @@ static int rmap_walk_file(struct page *page, int (*rmap_one)(struct page *,
 	struct address_space *mapping = page->mapping;
 	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 	struct vm_area_struct *vma;
-	struct prio_tree_iter iter;
 	int ret = SWAP_AGAIN;
 
 	if (!mapping)
 		return ret;
 	mutex_lock(&mapping->i_mmap_mutex);
-	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+	vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
 		unsigned long address = vma_address(page, vma);
 		if (address == -EFAULT)
 			continue;
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 1/7] mm: interval tree updates
  2012-09-07 22:55       ` Andrew Morton
  2012-09-07 23:26         ` Michel Lespinasse
@ 2012-09-07 23:26         ` Michel Lespinasse
  1 sibling, 0 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-07 23:26 UTC (permalink / raw)
  To: Andrew Morton
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos, linux-kernel

On Fri, Sep 07, 2012 at 03:55:14PM -0700, Andrew Morton wrote:
> On Fri, 7 Sep 2012 15:29:36 -0700
> Michel Lespinasse <walken@google.com> wrote:
> 
> > > Ho hum.  I don't think I can be bothered untangling all this.
> > 
> > I don't think you should have to do it yourself either.
> 
> Patch wrangling is what I do ;)
> 
> > But, if you're willing to take it, I can send you replacement patches for
> > (mm-replace-vma-prio_tree-with-an-interval-tree.patch +
> > mm-interval-tree-updates.patch) collapsed into one, and
> > rbtree-move-augmented-rbtree-functionality-to-rbtree_augmentedh.patch
> > fixed so that it'd apply after the collapsed patch (and get to the
> > same end state).
> 
> Yes please, I suppose we should do this.

Here is the replacement for
+ rbtree-move-augmented-rbtree-functionality-to-rbtree_augmentedh.patch

(I also copied the signed-offs and ccs from the original change)

-----------------------------8<-------------------------------------
From: Michel Lespinasse <walken@google.com>
Subject: rbtree: move augmented rbtree functionality to rbtree_augmented.h

Provide rb_insert_augmented() and rb_erase_augmented through
a new rbtree_augmented.h include file. rb_erase_augmented() is defined
there as an __always_inline function, in order to allow inlining of
augmented rbtree callbacks into it. Since this generates a relatively
large function, each augmented rbtree users should make sure to
have a single call site.

Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 Documentation/rbtree.txt              |   13 ++
 arch/x86/mm/pat_rbtree.c              |    2 +-
 include/linux/interval_tree_generic.h |    2 +
 include/linux/rbtree.h                |   48 -------
 include/linux/rbtree_augmented.h      |  223 +++++++++++++++++++++++++++++++++
 lib/rbtree.c                          |  162 ++----------------------
 lib/rbtree_test.c                     |    2 +-
 7 files changed, 251 insertions(+), 201 deletions(-)
 create mode 100644 include/linux/rbtree_augmented.h

diff --git a/Documentation/rbtree.txt b/Documentation/rbtree.txt
index 0a0b6dce3e08..61b6c48871a0 100644
--- a/Documentation/rbtree.txt
+++ b/Documentation/rbtree.txt
@@ -202,6 +202,14 @@ An rbtree user who wants this feature will have to call the augmentation
 functions with the user provided augmentation callback when inserting
 and erasing nodes.
 
+C files implementing augmented rbtree manipulation must include
+<linux/rbtree_augmented.h> instead of <linus/rbtree.h>. Note that
+linux/rbtree_augmented.h exposes some rbtree implementations details
+you are not expected to rely on; please stick to the documented APIs
+there and do not include <linux/rbtree_augmented.h> from header files
+either so as to minimize chances of your users accidentally relying on
+such implementation details.
+
 On insertion, the user must update the augmented information on the path
 leading to the inserted node, then call rb_link_node() as usual and
 rb_augment_inserted() instead of the usual rb_insert_color() call.
@@ -227,6 +235,11 @@ In both cases, the callbacks are provided through struct rb_augment_callbacks.
   subtree to a newly assigned subtree root AND recomputes the augmented
   information for the former subtree root.
 
+The compiled code for rb_erase_augmented() may inline the propagation and
+copy callbacks, which results in a large function, so each augmented rbtree
+user should have a single rb_erase_augmented() call site in order to limit
+compiled code size.
+
 
 Sample usage:
 
diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
index 4d116959075d..415f6c4ced36 100644
--- a/arch/x86/mm/pat_rbtree.c
+++ b/arch/x86/mm/pat_rbtree.c
@@ -12,7 +12,7 @@
 #include <linux/debugfs.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/rbtree.h>
+#include <linux/rbtree_augmented.h>
 #include <linux/sched.h>
 #include <linux/gfp.h>
 
diff --git a/include/linux/interval_tree_generic.h b/include/linux/interval_tree_generic.h
index 46232114dde0..58370e1862ad 100644
--- a/include/linux/interval_tree_generic.h
+++ b/include/linux/interval_tree_generic.h
@@ -19,6 +19,8 @@
   include/linux/interval_tree_generic.h
 */
 
+#include <linux/rbtree_augmented.h>
+
 /*
  * Template for implementing interval trees
  *
diff --git a/include/linux/rbtree.h b/include/linux/rbtree.h
index 8d1e83b1c87b..0022c1bb1e26 100644
--- a/include/linux/rbtree.h
+++ b/include/linux/rbtree.h
@@ -62,54 +62,6 @@ extern void rb_insert_color(struct rb_node *, struct rb_root *);
 extern void rb_erase(struct rb_node *, struct rb_root *);
 
 
-struct rb_augment_callbacks {
-	void (*propagate)(struct rb_node *node, struct rb_node *stop);
-	void (*copy)(struct rb_node *old, struct rb_node *new);
-	void (*rotate)(struct rb_node *old, struct rb_node *new);
-};
-
-extern void __rb_insert_augmented(struct rb_node *node, struct rb_root *root,
-	void (*augment_rotate)(struct rb_node *old, struct rb_node *new));
-extern void rb_erase_augmented(struct rb_node *node, struct rb_root *root,
-			       const struct rb_augment_callbacks *augment);
-static inline void
-rb_insert_augmented(struct rb_node *node, struct rb_root *root,
-		    const struct rb_augment_callbacks *augment)
-{
-	__rb_insert_augmented(node, root, augment->rotate);
-}
-
-#define RB_DECLARE_CALLBACKS(rbstatic, rbname, rbstruct, rbfield,	      \
-			     rbtype, rbaugmented, rbcompute)		      \
-static void rbname ## _propagate(struct rb_node *rb, struct rb_node *stop)    \
-{									      \
-	while (rb != stop) {						      \
-		rbstruct *node = rb_entry(rb, rbstruct, rbfield);	      \
-		rbtype augmented = rbcompute(node);			      \
-		if (node->rbaugmented == augmented)			      \
-			break;						      \
-		node->rbaugmented = augmented;				      \
-		rb = rb_parent(&node->rbfield);				      \
-	}								      \
-}									      \
-static void rbname ## _copy(struct rb_node *rb_old, struct rb_node *rb_new)   \
-{									      \
-	rbstruct *old = rb_entry(rb_old, rbstruct, rbfield);		      \
-	rbstruct *new = rb_entry(rb_new, rbstruct, rbfield);		      \
-	new->rbaugmented = old->rbaugmented;				      \
-}									      \
-static void rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new) \
-{									      \
-	rbstruct *old = rb_entry(rb_old, rbstruct, rbfield);		      \
-	rbstruct *new = rb_entry(rb_new, rbstruct, rbfield);		      \
-	new->rbaugmented = old->rbaugmented;				      \
-	old->rbaugmented = rbcompute(old);				      \
-}									      \
-rbstatic const struct rb_augment_callbacks rbname = {			      \
-	rbname ## _propagate, rbname ## _copy, rbname ## _rotate	      \
-};
-
-
 /* Find logical next and previous nodes in a tree */
 extern struct rb_node *rb_next(const struct rb_node *);
 extern struct rb_node *rb_prev(const struct rb_node *);
diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
new file mode 100644
index 000000000000..214caa33433b
--- /dev/null
+++ b/include/linux/rbtree_augmented.h
@@ -0,0 +1,223 @@
+/*
+  Red Black Trees
+  (C) 1999  Andrea Arcangeli <andrea@suse.de>
+  (C) 2002  David Woodhouse <dwmw2@infradead.org>
+  (C) 2012  Michel Lespinasse <walken@google.com>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  linux/include/linux/rbtree_augmented.h
+*/
+
+#ifndef _LINUX_RBTREE_AUGMENTED_H
+#define _LINUX_RBTREE_AUGMENTED_H
+
+#include <linux/rbtree.h>
+
+/*
+ * Please note - only struct rb_augment_callbacks and the prototypes for
+ * rb_insert_augmented() and rb_erase_augmented() are intended to be public.
+ * The rest are implementation details you are not expected to depend on.
+ *
+ * See Documentation/rbtree.txt for documentation and samples.
+ */
+
+struct rb_augment_callbacks {
+	void (*propagate)(struct rb_node *node, struct rb_node *stop);
+	void (*copy)(struct rb_node *old, struct rb_node *new);
+	void (*rotate)(struct rb_node *old, struct rb_node *new);
+};
+
+extern void __rb_insert_augmented(struct rb_node *node, struct rb_root *root,
+	void (*augment_rotate)(struct rb_node *old, struct rb_node *new));
+static inline void
+rb_insert_augmented(struct rb_node *node, struct rb_root *root,
+		    const struct rb_augment_callbacks *augment)
+{
+	__rb_insert_augmented(node, root, augment->rotate);
+}
+
+#define RB_DECLARE_CALLBACKS(rbstatic, rbname, rbstruct, rbfield,	\
+			     rbtype, rbaugmented, rbcompute)		\
+static inline void							\
+rbname ## _propagate(struct rb_node *rb, struct rb_node *stop)		\
+{									\
+	while (rb != stop) {						\
+		rbstruct *node = rb_entry(rb, rbstruct, rbfield);	\
+		rbtype augmented = rbcompute(node);			\
+		if (node->rbaugmented == augmented)			\
+			break;						\
+		node->rbaugmented = augmented;				\
+		rb = rb_parent(&node->rbfield);				\
+	}								\
+}									\
+static inline void							\
+rbname ## _copy(struct rb_node *rb_old, struct rb_node *rb_new)		\
+{									\
+	rbstruct *old = rb_entry(rb_old, rbstruct, rbfield);		\
+	rbstruct *new = rb_entry(rb_new, rbstruct, rbfield);		\
+	new->rbaugmented = old->rbaugmented;				\
+}									\
+static void								\
+rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new)	\
+{									\
+	rbstruct *old = rb_entry(rb_old, rbstruct, rbfield);		\
+	rbstruct *new = rb_entry(rb_new, rbstruct, rbfield);		\
+	new->rbaugmented = old->rbaugmented;				\
+	old->rbaugmented = rbcompute(old);				\
+}									\
+rbstatic const struct rb_augment_callbacks rbname = {			\
+	rbname ## _propagate, rbname ## _copy, rbname ## _rotate	\
+};
+
+
+#define	RB_RED		0
+#define	RB_BLACK	1
+
+#define __rb_parent(pc)    ((struct rb_node *)(pc & ~3))
+
+#define __rb_color(pc)     ((pc) & 1)
+#define __rb_is_black(pc)  __rb_color(pc)
+#define __rb_is_red(pc)    (!__rb_color(pc))
+#define rb_color(rb)       __rb_color((rb)->__rb_parent_color)
+#define rb_is_red(rb)      __rb_is_red((rb)->__rb_parent_color)
+#define rb_is_black(rb)    __rb_is_black((rb)->__rb_parent_color)
+
+static inline void rb_set_parent(struct rb_node *rb, struct rb_node *p)
+{
+	rb->__rb_parent_color = rb_color(rb) | (unsigned long)p;
+}
+
+static inline void rb_set_parent_color(struct rb_node *rb,
+				       struct rb_node *p, int color)
+{
+	rb->__rb_parent_color = (unsigned long)p | color;
+}
+
+static inline void
+__rb_change_child(struct rb_node *old, struct rb_node *new,
+		  struct rb_node *parent, struct rb_root *root)
+{
+	if (parent) {
+		if (parent->rb_left == old)
+			parent->rb_left = new;
+		else
+			parent->rb_right = new;
+	} else
+		root->rb_node = new;
+}
+
+extern void __rb_erase_color(struct rb_node *parent, struct rb_root *root,
+	void (*augment_rotate)(struct rb_node *old, struct rb_node *new));
+
+static __always_inline void
+rb_erase_augmented(struct rb_node *node, struct rb_root *root,
+		   const struct rb_augment_callbacks *augment)
+{
+	struct rb_node *child = node->rb_right, *tmp = node->rb_left;
+	struct rb_node *parent, *rebalance;
+	unsigned long pc;
+
+	if (!tmp) {
+		/*
+		 * Case 1: node to erase has no more than 1 child (easy!)
+		 *
+		 * Note that if there is one child it must be red due to 5)
+		 * and node must be black due to 4). We adjust colors locally
+		 * so as to bypass __rb_erase_color() later on.
+		 */
+		pc = node->__rb_parent_color;
+		parent = __rb_parent(pc);
+		__rb_change_child(node, child, parent, root);
+		if (child) {
+			child->__rb_parent_color = pc;
+			rebalance = NULL;
+		} else
+			rebalance = __rb_is_black(pc) ? parent : NULL;
+		tmp = parent;
+	} else if (!child) {
+		/* Still case 1, but this time the child is node->rb_left */
+		tmp->__rb_parent_color = pc = node->__rb_parent_color;
+		parent = __rb_parent(pc);
+		__rb_change_child(node, tmp, parent, root);
+		rebalance = NULL;
+		tmp = parent;
+	} else {
+		struct rb_node *successor = child, *child2;
+		tmp = child->rb_left;
+		if (!tmp) {
+			/*
+			 * Case 2: node's successor is its right child
+			 *
+			 *    (n)          (s)
+			 *    / \          / \
+			 *  (x) (s)  ->  (x) (c)
+			 *        \
+			 *        (c)
+			 */
+			parent = successor;
+			child2 = successor->rb_right;
+			augment->copy(node, successor);
+		} else {
+			/*
+			 * Case 3: node's successor is leftmost under
+			 * node's right child subtree
+			 *
+			 *    (n)          (s)
+			 *    / \          / \
+			 *  (x) (y)  ->  (x) (y)
+			 *      /            /
+			 *    (p)          (p)
+			 *    /            /
+			 *  (s)          (c)
+			 *    \
+			 *    (c)
+			 */
+			do {
+				parent = successor;
+				successor = tmp;
+				tmp = tmp->rb_left;
+			} while (tmp);
+			parent->rb_left = child2 = successor->rb_right;
+			successor->rb_right = child;
+			rb_set_parent(child, successor);
+			augment->copy(node, successor);
+			augment->propagate(parent, successor);
+		}
+
+		successor->rb_left = tmp = node->rb_left;
+		rb_set_parent(tmp, successor);
+
+		pc = node->__rb_parent_color;
+		tmp = __rb_parent(pc);
+		__rb_change_child(node, successor, tmp, root);
+		if (child2) {
+			successor->__rb_parent_color = pc;
+			rb_set_parent_color(child2, parent, RB_BLACK);
+			rebalance = NULL;
+		} else {
+			unsigned long pc2 = successor->__rb_parent_color;
+			successor->__rb_parent_color = pc;
+			rebalance = __rb_is_black(pc2) ? parent : NULL;
+		}
+		tmp = successor;
+	}
+
+	augment->propagate(tmp, NULL);
+	if (rebalance)
+		__rb_erase_color(rebalance, root, augment->rotate);
+}
+
+#endif	/* _LINUX_RBTREE_AUGMENTED_H */
diff --git a/lib/rbtree.c b/lib/rbtree.c
index c0088ca345f9..4f56a11d67fa 100644
--- a/lib/rbtree.c
+++ b/lib/rbtree.c
@@ -21,7 +21,7 @@
   linux/lib/rbtree.c
 */
 
-#include <linux/rbtree.h>
+#include <linux/rbtree_augmented.h>
 #include <linux/export.h>
 
 /*
@@ -44,52 +44,16 @@
  *  parentheses and have some accompanying text comment.
  */
 
-#define	RB_RED		0
-#define	RB_BLACK	1
-
-#define __rb_parent(pc)    ((struct rb_node *)(pc & ~3))
-
-#define __rb_color(pc)     ((pc) & 1)
-#define __rb_is_black(pc)  __rb_color(pc)
-#define __rb_is_red(pc)    (!__rb_color(pc))
-#define rb_color(rb)       __rb_color((rb)->__rb_parent_color)
-#define rb_is_red(rb)      __rb_is_red((rb)->__rb_parent_color)
-#define rb_is_black(rb)    __rb_is_black((rb)->__rb_parent_color)
-
 static inline void rb_set_black(struct rb_node *rb)
 {
 	rb->__rb_parent_color |= RB_BLACK;
 }
 
-static inline void rb_set_parent(struct rb_node *rb, struct rb_node *p)
-{
-	rb->__rb_parent_color = rb_color(rb) | (unsigned long)p;
-}
-
-static inline void rb_set_parent_color(struct rb_node *rb,
-				       struct rb_node *p, int color)
-{
-	rb->__rb_parent_color = (unsigned long)p | color;
-}
-
 static inline struct rb_node *rb_red_parent(struct rb_node *red)
 {
 	return (struct rb_node *)red->__rb_parent_color;
 }
 
-static inline void
-__rb_change_child(struct rb_node *old, struct rb_node *new,
-		  struct rb_node *parent, struct rb_root *root)
-{
-	if (parent) {
-		if (parent->rb_left == old)
-			parent->rb_left = new;
-		else
-			parent->rb_right = new;
-	} else
-		root->rb_node = new;
-}
-
 /*
  * Helper function for rotations:
  * - old's parent and color get assigned to new
@@ -230,9 +194,9 @@ __rb_insert(struct rb_node *node, struct rb_root *root,
 	}
 }
 
-static __always_inline void
+__always_inline void
 __rb_erase_color(struct rb_node *parent, struct rb_root *root,
-		 const struct rb_augment_callbacks *augment)
+	void (*augment_rotate)(struct rb_node *old, struct rb_node *new))
 {
 	struct rb_node *node = NULL, *sibling, *tmp1, *tmp2;
 
@@ -261,7 +225,7 @@ __rb_erase_color(struct rb_node *parent, struct rb_root *root,
 				rb_set_parent_color(tmp1, parent, RB_BLACK);
 				__rb_rotate_set_parents(parent, sibling, root,
 							RB_RED);
-				augment->rotate(parent, sibling);
+				augment_rotate(parent, sibling);
 				sibling = tmp1;
 			}
 			tmp1 = sibling->rb_right;
@@ -313,7 +277,7 @@ __rb_erase_color(struct rb_node *parent, struct rb_root *root,
 				if (tmp1)
 					rb_set_parent_color(tmp1, sibling,
 							    RB_BLACK);
-				augment->rotate(sibling, tmp2);
+				augment_rotate(sibling, tmp2);
 				tmp1 = sibling;
 				sibling = tmp2;
 			}
@@ -336,7 +300,7 @@ __rb_erase_color(struct rb_node *parent, struct rb_root *root,
 				rb_set_parent(tmp2, parent);
 			__rb_rotate_set_parents(parent, sibling, root,
 						RB_BLACK);
-			augment->rotate(parent, sibling);
+			augment_rotate(parent, sibling);
 			break;
 		} else {
 			sibling = parent->rb_left;
@@ -347,7 +311,7 @@ __rb_erase_color(struct rb_node *parent, struct rb_root *root,
 				rb_set_parent_color(tmp1, parent, RB_BLACK);
 				__rb_rotate_set_parents(parent, sibling, root,
 							RB_RED);
-				augment->rotate(parent, sibling);
+				augment_rotate(parent, sibling);
 				sibling = tmp1;
 			}
 			tmp1 = sibling->rb_left;
@@ -374,7 +338,7 @@ __rb_erase_color(struct rb_node *parent, struct rb_root *root,
 				if (tmp1)
 					rb_set_parent_color(tmp1, sibling,
 							    RB_BLACK);
-				augment->rotate(sibling, tmp2);
+				augment_rotate(sibling, tmp2);
 				tmp1 = sibling;
 				sibling = tmp2;
 			}
@@ -386,109 +350,12 @@ __rb_erase_color(struct rb_node *parent, struct rb_root *root,
 				rb_set_parent(tmp2, parent);
 			__rb_rotate_set_parents(parent, sibling, root,
 						RB_BLACK);
-			augment->rotate(parent, sibling);
+			augment_rotate(parent, sibling);
 			break;
 		}
 	}
 }
-
-static __always_inline void
-__rb_erase(struct rb_node *node, struct rb_root *root,
-	   const struct rb_augment_callbacks *augment)
-{
-	struct rb_node *child = node->rb_right, *tmp = node->rb_left;
-	struct rb_node *parent, *rebalance;
-	unsigned long pc;
-
-	if (!tmp) {
-		/*
-		 * Case 1: node to erase has no more than 1 child (easy!)
-		 *
-		 * Note that if there is one child it must be red due to 5)
-		 * and node must be black due to 4). We adjust colors locally
-		 * so as to bypass __rb_erase_color() later on.
-		 */
-		pc = node->__rb_parent_color;
-		parent = __rb_parent(pc);
-		__rb_change_child(node, child, parent, root);
-		if (child) {
-			child->__rb_parent_color = pc;
-			rebalance = NULL;
-		} else
-			rebalance = __rb_is_black(pc) ? parent : NULL;
-		tmp = parent;
-	} else if (!child) {
-		/* Still case 1, but this time the child is node->rb_left */
-		tmp->__rb_parent_color = pc = node->__rb_parent_color;
-		parent = __rb_parent(pc);
-		__rb_change_child(node, tmp, parent, root);
-		rebalance = NULL;
-		tmp = parent;
-	} else {
-		struct rb_node *successor = child, *child2;
-		tmp = child->rb_left;
-		if (!tmp) {
-			/*
-			 * Case 2: node's successor is its right child
-			 *
-			 *    (n)          (s)
-			 *    / \          / \
-			 *  (x) (s)  ->  (x) (c)
-			 *        \
-			 *        (c)
-			 */
-			parent = successor;
-			child2 = successor->rb_right;
-			augment->copy(node, successor);
-		} else {
-			/*
-			 * Case 3: node's successor is leftmost under
-			 * node's right child subtree
-			 *
-			 *    (n)          (s)
-			 *    / \          / \
-			 *  (x) (y)  ->  (x) (y)
-			 *      /            /
-			 *    (p)          (p)
-			 *    /            /
-			 *  (s)          (c)
-			 *    \
-			 *    (c)
-			 */
-			do {
-				parent = successor;
-				successor = tmp;
-				tmp = tmp->rb_left;
-			} while (tmp);
-			parent->rb_left = child2 = successor->rb_right;
-			successor->rb_right = child;
-			rb_set_parent(child, successor);
-			augment->copy(node, successor);
-			augment->propagate(parent, successor);
-		}
-
-		successor->rb_left = tmp = node->rb_left;
-		rb_set_parent(tmp, successor);
-
-		pc = node->__rb_parent_color;
-		tmp = __rb_parent(pc);
-		__rb_change_child(node, successor, tmp, root);
-		if (child2) {
-			successor->__rb_parent_color = pc;
-			rb_set_parent_color(child2, parent, RB_BLACK);
-			rebalance = NULL;
-		} else {
-			unsigned long pc2 = successor->__rb_parent_color;
-			successor->__rb_parent_color = pc;
-			rebalance = __rb_is_black(pc2) ? parent : NULL;
-		}
-		tmp = successor;
-	}
-
-	augment->propagate(tmp, NULL);
-	if (rebalance)
-		__rb_erase_color(rebalance, root, augment);
-}
+EXPORT_SYMBOL(__rb_erase_color);
 
 /*
  * Non-augmented rbtree manipulation functions.
@@ -513,7 +380,7 @@ EXPORT_SYMBOL(rb_insert_color);
 
 void rb_erase(struct rb_node *node, struct rb_root *root)
 {
-	__rb_erase(node, root, &dummy_callbacks);
+	rb_erase_augmented(node, root, &dummy_callbacks);
 }
 EXPORT_SYMBOL(rb_erase);
 
@@ -531,13 +398,6 @@ void __rb_insert_augmented(struct rb_node *node, struct rb_root *root,
 }
 EXPORT_SYMBOL(__rb_insert_augmented);
 
-void rb_erase_augmented(struct rb_node *node, struct rb_root *root,
-			const struct rb_augment_callbacks *augment)
-{
-	__rb_erase(node, root, augment);
-}
-EXPORT_SYMBOL(rb_erase_augmented);
-
 /*
  * This function returns the first node (in sort order) of the tree.
  */
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c
index b20e99969b0f..268b23951fec 100644
--- a/lib/rbtree_test.c
+++ b/lib/rbtree_test.c
@@ -1,5 +1,5 @@
 #include <linux/module.h>
-#include <linux/rbtree.h>
+#include <linux/rbtree_augmented.h>
 #include <linux/random.h>
 #include <asm/timex.h>
 
-- 
1.7.7.3

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 1/7] mm: interval tree updates
  2012-09-07 23:26         ` Michel Lespinasse
@ 2012-09-08  4:45           ` Hillf Danton
  0 siblings, 0 replies; 30+ messages in thread
From: Hillf Danton @ 2012-09-08  4:45 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: Andrew Morton, linux-mm, riel, peterz, aarcange, hughd,
	daniel.santos, linux-kernel

Hello Michel

Lets first see snippet in another work.

	https://lkml.org/lkml/2012/9/4/75
	[PATCH 5/7] mm rmap: remove vma_address check for address inside vma

On Tue, Sep 4, 2012 at 5:20 PM, Michel Lespinasse <walken@google.com> wrote:
> diff --git a/mm/rmap.c b/mm/rmap.c
> index 9c61bf387fd1..28777412de62 100644
> --- a/mm/rmap.c
> +++ b/mm/rmap.c
> @@ -510,22 +510,26 @@ void page_unlock_anon_vma(struct anon_vma *anon_vma)
>
>  /*
>   * At what user virtual address is page expected in @vma?
> - * Returns virtual address or -EFAULT if page's index/offset is not
> - * within the range mapped the @vma.
>   */
> -inline unsigned long
> -vma_address(struct page *page, struct vm_area_struct *vma)
> +static inline unsigned long
> +__vma_address(struct page *page, struct vm_area_struct *vma)
>  {
>         pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
> -       unsigned long address;
>
>         if (unlikely(is_vm_hugetlb_page(vma)))
>                 pgoff = page->index << huge_page_order(page_hstate(page));

The pgoff computation for huge page remains as it was.

> -       address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
> -       if (unlikely(address < vma->vm_start || address >= vma->vm_end)) {
> -               /* page should be within @vma mapping range */
> -               return -EFAULT;
> -       }
> +
> +       return vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
> +}
> +
> +inline unsigned long
> +vma_address(struct page *page, struct vm_area_struct *vma)
> +{
> +       unsigned long address = __vma_address(page, vma);
> +
> +       /* page should be within @vma mapping range */
> +       VM_BUG_ON(address < vma->vm_start || address >= vma->vm_end);
> +
>         return address;
>  }
>

Then lets see this work.


On Sat, Sep 8, 2012 at 7:26 AM, Michel Lespinasse <walken@google.com> wrote:
> -----------------------------8<-------------------------------------
> From: Michel Lespinasse <walken@google.com>
> Subject: mm: replace vma prio_tree with an interval tree
>
> Implement an interval tree as a replacement for the VMA prio_tree.
> The algorithms are similar to lib/interval_tree.c; however that code
> can't be directly reused as the interval endpoints are not explicitly
> stored in the VMA. So instead, the common algorithm is moved into
> a template and the details (node type, how to get interval endpoints
> from the node, etc) are filled in using the C preprocessor.
>
> Once the interval tree functions are available, using them as a replacement
> to the VMA prio tree is a relatively simple, mechanical job.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>
> Cc: Rik van Riel <riel@redhat.com>
> Cc: Hillf Danton <dhillf@gmail.com>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Andrea Arcangeli <aarcange@redhat.com>
> Cc: David Woodhouse <dwmw2@infradead.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> ---

[...]

> --- /dev/null
> +++ b/mm/interval_tree.c
> @@ -0,0 +1,59 @@
> +/*
> + * mm/interval_tree.c - interval tree for mapping->i_mmap
> + *
> + * Copyright (C) 2012, Michel Lespinasse <walken@google.com>
> + *
> + * This file is released under the GPL v2.
> + */
> +
> +#include <linux/mm.h>
> +#include <linux/fs.h>
> +#include <linux/interval_tree_generic.h>
> +
> +static inline unsigned long vma_start_pgoff(struct vm_area_struct *v)
> +{
> +       return v->vm_pgoff;
> +}
> +
> +static inline unsigned long vma_last_pgoff(struct vm_area_struct *v)
> +{
> +       return v->vm_pgoff + ((v->vm_end - v->vm_start) >> PAGE_SHIFT) - 1;
> +}
> +

The pgoff computations are only for regular page, yes?

> +INTERVAL_TREE_DEFINE(struct vm_area_struct, shared.linear.rb,
> +                    unsigned long, shared.linear.rb_subtree_last,
> +                    vma_start_pgoff, vma_last_pgoff,, vma_interval_tree)
> +

[...]

> @@ -1547,7 +1545,6 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
>         struct address_space *mapping = page->mapping;
>         pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);

What if page is huge?

>         struct vm_area_struct *vma;
> -       struct prio_tree_iter iter;
>         int ret = SWAP_AGAIN;
>         unsigned long cursor;
>         unsigned long max_nl_cursor = 0;
> @@ -1555,7 +1552,7 @@ static int try_to_unmap_file(struct page *page, enum ttu_flags flags)
>         unsigned int mapcount;
>
>         mutex_lock(&mapping->i_mmap_mutex);
> -       vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
> +       vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
>                 unsigned long address = vma_address(page, vma);
>                 if (address == -EFAULT)
>                         continue;

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-04  9:20 ` [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option Michel Lespinasse
@ 2012-09-14 22:14   ` Sasha Levin
  2012-09-14 22:40     ` Sasha Levin
  2012-09-14 22:46     ` Michel Lespinasse
  0 siblings, 2 replies; 30+ messages in thread
From: Sasha Levin @ 2012-09-14 22:14 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos,
	linux-kernel, akpm, Dave Jones

On 09/04/2012 11:20 AM, Michel Lespinasse wrote:
> Add a CONFIG_DEBUG_VM_RB build option for the previously existing
> DEBUG_MM_RB code. Now that Andi Kleen modified it to avoid using
> recursive algorithms, we can expose it a bit more.
> 
> Also extend this code to validate_mm() after stack expansion, and to
> check that the vma's start and last pgoffs have not changed since the
> nodes were inserted on the anon vma interval tree (as it is important
> that the nodes be reindexed after each such update).

This patch exposes the following warning:

[   24.977502] ------------[ cut here ]------------
[   24.979089] WARNING: at mm/interval_tree.c:110
anon_vma_interval_tree_verify+0x81/0xa0()
[   24.981765] Pid: 5928, comm: trinity-child37 Tainted: G        W
3.6.0-rc5-next-20120914-sasha-00003-g7deb7fa-dirty #333
[   24.985501] Call Trace:
[   24.986345]  [<ffffffff81224c91>] ? anon_vma_interval_tree_verify+0x81/0xa0
[   24.988535]  [<ffffffff81106766>] warn_slowpath_common+0x86/0xb0
[   24.990636]  [<ffffffff81106855>] warn_slowpath_null+0x15/0x20
[   24.992658]  [<ffffffff81224c91>] anon_vma_interval_tree_verify+0x81/0xa0
[   24.994980]  [<ffffffff8122e6e8>] validate_mm+0x58/0x1e0
[   24.996772]  [<ffffffff8122e934>] vma_link+0x94/0xe0
[   24.997719]  [<ffffffff812315e9>] copy_vma+0x279/0x2e0
[   24.998522]  [<ffffffff8117a7fd>] ? trace_hardirqs_off+0xd/0x10
[   25.000772]  [<ffffffff81232e89>] move_vma+0xa9/0x260
[   25.002499]  [<ffffffff812334b5>] sys_mremap+0x475/0x540
[   25.004364]  [<ffffffff8374b6e8>] tracesys+0xe1/0xe6
[   25.006108] ---[ end trace 7c901670963aa6e2 ]---

The code line is

        WARN_ON_ONCE(node->cached_vma_last != avc_last_pgoff(node));

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-14 22:14   ` Sasha Levin
@ 2012-09-14 22:40     ` Sasha Levin
  2012-09-14 22:46     ` Michel Lespinasse
  1 sibling, 0 replies; 30+ messages in thread
From: Sasha Levin @ 2012-09-14 22:40 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos,
	linux-kernel, akpm, Dave Jones

On 09/15/2012 12:14 AM, Sasha Levin wrote:
> On 09/04/2012 11:20 AM, Michel Lespinasse wrote:
>> Add a CONFIG_DEBUG_VM_RB build option for the previously existing
>> DEBUG_MM_RB code. Now that Andi Kleen modified it to avoid using
>> recursive algorithms, we can expose it a bit more.
>>
>> Also extend this code to validate_mm() after stack expansion, and to
>> check that the vma's start and last pgoffs have not changed since the
>> nodes were inserted on the anon vma interval tree (as it is important
>> that the nodes be reindexed after each such update).
> 
> This patch exposes the following warning:
> 
> [   24.977502] ------------[ cut here ]------------
> [   24.979089] WARNING: at mm/interval_tree.c:110
> anon_vma_interval_tree_verify+0x81/0xa0()
> [   24.981765] Pid: 5928, comm: trinity-child37 Tainted: G        W
> 3.6.0-rc5-next-20120914-sasha-00003-g7deb7fa-dirty #333
> [   24.985501] Call Trace:
> [   24.986345]  [<ffffffff81224c91>] ? anon_vma_interval_tree_verify+0x81/0xa0
> [   24.988535]  [<ffffffff81106766>] warn_slowpath_common+0x86/0xb0
> [   24.990636]  [<ffffffff81106855>] warn_slowpath_null+0x15/0x20
> [   24.992658]  [<ffffffff81224c91>] anon_vma_interval_tree_verify+0x81/0xa0
> [   24.994980]  [<ffffffff8122e6e8>] validate_mm+0x58/0x1e0
> [   24.996772]  [<ffffffff8122e934>] vma_link+0x94/0xe0
> [   24.997719]  [<ffffffff812315e9>] copy_vma+0x279/0x2e0
> [   24.998522]  [<ffffffff8117a7fd>] ? trace_hardirqs_off+0xd/0x10
> [   25.000772]  [<ffffffff81232e89>] move_vma+0xa9/0x260
> [   25.002499]  [<ffffffff812334b5>] sys_mremap+0x475/0x540
> [   25.004364]  [<ffffffff8374b6e8>] tracesys+0xe1/0xe6
> [   25.006108] ---[ end trace 7c901670963aa6e2 ]---
> 
> The code line is
> 
>         WARN_ON_ONCE(node->cached_vma_last != avc_last_pgoff(node));
> 

The second WARN in the function also triggers once in a while:

[   18.360283] ------------[ cut here ]------------
[   18.360289] WARNING: at mm/interval_tree.c:109
anon_vma_interval_tree_verify+0x36/0xa0()
[   18.360292] Pid: 5694, comm: trinity-child15 Tainted: G        W
3.6.0-rc5-next-20120914-sasha-00003-g7deb7fa-dirty #335
[   18.360293] Call Trace:
[   18.360297]  [<ffffffff81224c26>] ? anon_vma_interval_tree_verify+0x36/0xa0
[   18.360300]  [<ffffffff81106746>] warn_slowpath_common+0x86/0xb0
[   18.360303]  [<ffffffff81106835>] warn_slowpath_null+0x15/0x20
[   18.360305]  [<ffffffff81224c26>] anon_vma_interval_tree_verify+0x36/0xa0
[   18.360309]  [<ffffffff8122e6c8>] validate_mm+0x58/0x1e0
[   18.360312]  [<ffffffff8122e914>] vma_link+0x94/0xe0
[   18.360315]  [<ffffffff812315c9>] copy_vma+0x279/0x2e0
[   18.360319]  [<ffffffff8117a7dd>] ? trace_hardirqs_off+0xd/0x10
[   18.360322]  [<ffffffff81232e69>] move_vma+0xa9/0x260
[   18.360326]  [<ffffffff81233495>] sys_mremap+0x475/0x540
[   18.360330]  [<ffffffff8374b6e8>] tracesys+0xe1/0xe6
[   18.360332] ---[ end trace de862a218d00cefd ]---

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-14 22:14   ` Sasha Levin
  2012-09-14 22:40     ` Sasha Levin
@ 2012-09-14 22:46     ` Michel Lespinasse
  2012-09-15  0:00       ` Michel Lespinasse
  1 sibling, 1 reply; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-14 22:46 UTC (permalink / raw)
  To: Sasha Levin
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos,
	linux-kernel, akpm, Dave Jones

On Fri, Sep 14, 2012 at 3:14 PM, Sasha Levin <levinsasha928@gmail.com> wrote:
> On 09/04/2012 11:20 AM, Michel Lespinasse wrote:
>> Add a CONFIG_DEBUG_VM_RB build option for the previously existing
>> DEBUG_MM_RB code. Now that Andi Kleen modified it to avoid using
>> recursive algorithms, we can expose it a bit more.
>>
>> Also extend this code to validate_mm() after stack expansion, and to
>> check that the vma's start and last pgoffs have not changed since the
>> nodes were inserted on the anon vma interval tree (as it is important
>> that the nodes be reindexed after each such update).
>
> This patch exposes the following warning:
>
> [   24.977502] ------------[ cut here ]------------
> [   24.979089] WARNING: at mm/interval_tree.c:110
> anon_vma_interval_tree_verify+0x81/0xa0()
> [   24.981765] Pid: 5928, comm: trinity-child37 Tainted: G        W
> 3.6.0-rc5-next-20120914-sasha-00003-g7deb7fa-dirty #333
> [   24.985501] Call Trace:
> [   24.986345]  [<ffffffff81224c91>] ? anon_vma_interval_tree_verify+0x81/0xa0
> [   24.988535]  [<ffffffff81106766>] warn_slowpath_common+0x86/0xb0
> [   24.990636]  [<ffffffff81106855>] warn_slowpath_null+0x15/0x20
> [   24.992658]  [<ffffffff81224c91>] anon_vma_interval_tree_verify+0x81/0xa0
> [   24.994980]  [<ffffffff8122e6e8>] validate_mm+0x58/0x1e0
> [   24.996772]  [<ffffffff8122e934>] vma_link+0x94/0xe0
> [   24.997719]  [<ffffffff812315e9>] copy_vma+0x279/0x2e0
> [   24.998522]  [<ffffffff8117a7fd>] ? trace_hardirqs_off+0xd/0x10
> [   25.000772]  [<ffffffff81232e89>] move_vma+0xa9/0x260
> [   25.002499]  [<ffffffff812334b5>] sys_mremap+0x475/0x540
> [   25.004364]  [<ffffffff8374b6e8>] tracesys+0xe1/0xe6
> [   25.006108] ---[ end trace 7c901670963aa6e2 ]---
>
> The code line is
>
>         WARN_ON_ONCE(node->cached_vma_last != avc_last_pgoff(node));

That's very interesting (and potentially relevant to another bug
that's been reported too).

I'd like to know, what workload did you use that triggered this ?
(I find it hard to test mremap as I don't know of enough users of it)

Thanks,

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-14 22:46     ` Michel Lespinasse
@ 2012-09-15  0:00       ` Michel Lespinasse
  2012-09-15  7:52         ` Jiri Slaby
  2012-09-15  9:26         ` Sasha Levin
  0 siblings, 2 replies; 30+ messages in thread
From: Michel Lespinasse @ 2012-09-15  0:00 UTC (permalink / raw)
  To: Sasha Levin
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos,
	linux-kernel, akpm, Dave Jones, Jiri Slaby

On Fri, Sep 14, 2012 at 3:46 PM, Michel Lespinasse <walken@google.com> wrote:
> On Fri, Sep 14, 2012 at 3:14 PM, Sasha Levin <levinsasha928@gmail.com> wrote:
>> On 09/04/2012 11:20 AM, Michel Lespinasse wrote:
>>> Add a CONFIG_DEBUG_VM_RB build option for the previously existing
>>> DEBUG_MM_RB code. Now that Andi Kleen modified it to avoid using
>>> recursive algorithms, we can expose it a bit more.
>>>
>>> Also extend this code to validate_mm() after stack expansion, and to
>>> check that the vma's start and last pgoffs have not changed since the
>>> nodes were inserted on the anon vma interval tree (as it is important
>>> that the nodes be reindexed after each such update).
>>
>> This patch exposes the following warning:
>>
>> [   24.977502] ------------[ cut here ]------------
>> [   24.979089] WARNING: at mm/interval_tree.c:110
>> anon_vma_interval_tree_verify+0x81/0xa0()
>> [   24.981765] Pid: 5928, comm: trinity-child37 Tainted: G        W
>> 3.6.0-rc5-next-20120914-sasha-00003-g7deb7fa-dirty #333
>> [   24.985501] Call Trace:
>> [   24.986345]  [<ffffffff81224c91>] ? anon_vma_interval_tree_verify+0x81/0xa0
>> [   24.988535]  [<ffffffff81106766>] warn_slowpath_common+0x86/0xb0
>> [   24.990636]  [<ffffffff81106855>] warn_slowpath_null+0x15/0x20
>> [   24.992658]  [<ffffffff81224c91>] anon_vma_interval_tree_verify+0x81/0xa0
>> [   24.994980]  [<ffffffff8122e6e8>] validate_mm+0x58/0x1e0
>> [   24.996772]  [<ffffffff8122e934>] vma_link+0x94/0xe0
>> [   24.997719]  [<ffffffff812315e9>] copy_vma+0x279/0x2e0
>> [   24.998522]  [<ffffffff8117a7fd>] ? trace_hardirqs_off+0xd/0x10
>> [   25.000772]  [<ffffffff81232e89>] move_vma+0xa9/0x260
>> [   25.002499]  [<ffffffff812334b5>] sys_mremap+0x475/0x540
>> [   25.004364]  [<ffffffff8374b6e8>] tracesys+0xe1/0xe6
>> [   25.006108] ---[ end trace 7c901670963aa6e2 ]---
>>
>> The code line is
>>
>>         WARN_ON_ONCE(node->cached_vma_last != avc_last_pgoff(node));
>
> That's very interesting (and potentially relevant to another bug
> that's been reported too).
>
> I'd like to know, what workload did you use that triggered this ?
> (I find it hard to test mremap as I don't know of enough users of it)

All right. Hugh managed to reproduce the issue on his suse laptop, and
I came up with a fix.

The problem was that in mremap, the new vma's vm_{start,end,pgoff}
fields need to be updated before calling anon_vma_clone() so that the
new vma will be properly indexed.

Patch attached. I expect this should also explain Jiri's reported
failure involving splitting THP pages during mremap(), even though we
did not manage to reproduce that one.

---------------------------------8<-------------------------------

From: Michel Lespinasse <walken@google.com>
Date: Fri, 14 Sep 2012 16:43:49 -0700
Subject: [PATCH] mm anon rmap: in mremap, set the new vma's position before
 anon_vma_clone()

anon_vma_clone() expects new_vma->vm_{start,end,pgoff} to be correctly set
so that the new vma can be indexed on the anon interval tree.

copy_vma() was failing to do that, which broke mremap().

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 mm/mmap.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index cc8c64077a42..7e672800b5d4 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2446,16 +2446,16 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 		new_vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
 		if (new_vma) {
 			*new_vma = *vma;
+			new_vma->vm_start = addr;
+			new_vma->vm_end = addr + len;
+			new_vma->vm_pgoff = pgoff;
 			pol = mpol_dup(vma_policy(vma));
 			if (IS_ERR(pol))
 				goto out_free_vma;
+			vma_set_policy(new_vma, pol);
 			INIT_LIST_HEAD(&new_vma->anon_vma_chain);
 			if (anon_vma_clone(new_vma, vma))
 				goto out_free_mempol;
-			vma_set_policy(new_vma, pol);
-			new_vma->vm_start = addr;
-			new_vma->vm_end = addr + len;
-			new_vma->vm_pgoff = pgoff;
 			if (new_vma->vm_file) {
 				get_file(new_vma->vm_file);
 
-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-15  0:00       ` Michel Lespinasse
@ 2012-09-15  7:52         ` Jiri Slaby
  2012-09-16 19:07           ` Hugh Dickins
  2012-09-15  9:26         ` Sasha Levin
  1 sibling, 1 reply; 30+ messages in thread
From: Jiri Slaby @ 2012-09-15  7:52 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: Sasha Levin, linux-mm, riel, peterz, aarcange, hughd,
	daniel.santos, linux-kernel, akpm, Dave Jones

On 09/15/2012 02:00 AM, Michel Lespinasse wrote:
> All right. Hugh managed to reproduce the issue on his suse laptop, and
> I came up with a fix.
> 
> The problem was that in mremap, the new vma's vm_{start,end,pgoff}
> fields need to be updated before calling anon_vma_clone() so that the
> new vma will be properly indexed.
> 
> Patch attached. I expect this should also explain Jiri's reported
> failure involving splitting THP pages during mremap(), even though we
> did not manage to reproduce that one.

Oh, great. This is BTW also machine with suse. What was the way that
Hugh used to reproduce the other issue? For me it happened twice in a
row when using zypper to upgrade packages. But it did not happen any
more after that.

thanks,
-- 
js
suse labs

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-15  0:00       ` Michel Lespinasse
  2012-09-15  7:52         ` Jiri Slaby
@ 2012-09-15  9:26         ` Sasha Levin
  2012-09-20 21:39           ` Fengguang Wu
  1 sibling, 1 reply; 30+ messages in thread
From: Sasha Levin @ 2012-09-15  9:26 UTC (permalink / raw)
  To: Michel Lespinasse
  Cc: linux-mm, riel, peterz, aarcange, hughd, daniel.santos,
	linux-kernel, akpm, Dave Jones, Jiri Slaby

On 09/15/2012 02:00 AM, Michel Lespinasse wrote:
> All right. Hugh managed to reproduce the issue on his suse laptop, and
> I came up with a fix.
> 
> The problem was that in mremap, the new vma's vm_{start,end,pgoff}
> fields need to be updated before calling anon_vma_clone() so that the
> new vma will be properly indexed.
> 
> Patch attached. I expect this should also explain Jiri's reported
> failure involving splitting THP pages during mremap(), even though we
> did not manage to reproduce that one.

Initially I've stumbled on it by running trinity inside a KVM tools guest. fwiw,
the guest is pretty custom and isn't based on suse.

I re-ran tests with patch applied and looks like it fixed the issue, I haven't
seen the warnings even though it runs for quite a while now.


Thanks,
Sasha

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-15  7:52         ` Jiri Slaby
@ 2012-09-16 19:07           ` Hugh Dickins
  2012-09-22  7:19             ` Jiri Slaby
  0 siblings, 1 reply; 30+ messages in thread
From: Hugh Dickins @ 2012-09-16 19:07 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Michel Lespinasse, Sasha Levin, linux-mm, riel, peterz, aarcange,
	daniel.santos, linux-kernel, akpm, Dave Jones

On Sat, 15 Sep 2012, Jiri Slaby wrote:
> On 09/15/2012 02:00 AM, Michel Lespinasse wrote:
> > All right. Hugh managed to reproduce the issue on his suse laptop, and
> > I came up with a fix.
> > 
> > The problem was that in mremap, the new vma's vm_{start,end,pgoff}
> > fields need to be updated before calling anon_vma_clone() so that the
> > new vma will be properly indexed.
> > 
> > Patch attached. I expect this should also explain Jiri's reported
> > failure involving splitting THP pages during mremap(), even though we
> > did not manage to reproduce that one.
> 
> Oh, great. This is BTW also machine with suse.

We guessed that for you it might be :)
I've not yet moved up from 11.4 by the way, if that makes a difference.

In fact, even before these reports, when Michel was wondering about the
uses of mremap, I did mention an mremap/THP bug from a year ago, which
the SuSE update had been good for reproducing.

> What was the way that
> Hugh used to reproduce the other issue?

I've lost track of which issue is "other".

To reproduce Sasha's interval_tree.c warnings, all I had to do was switch
on CONFIG_DEBUG_VM_RB (I regret not having done so before) and boot up.

I didn't look to see what was doing the mremap which caused the warning
until now: surprisingly, it's microcode_ctl.  I've not made much effort
to get the right set of sources and work out why that would be using
mremap (a realloc inside a library?).

I failed to reproduce your BUG in huge_memory.c, but what I was trying
was SuSE update via yast2, on several machines; but perhaps because
they were all fairly close to up-to-date, I didn't hit a problem.
(That was before I turned on DEBUG_VM_RB for Sasha's.)

Hugh

> For me it happened twice in a
> row when using zypper to upgrade packages. But it did not happen any
> more after that.
> 
> thanks,
> -- 
> js
> suse labs

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-15  9:26         ` Sasha Levin
@ 2012-09-20 21:39           ` Fengguang Wu
  2012-09-20 22:27             ` Hugh Dickins
  0 siblings, 1 reply; 30+ messages in thread
From: Fengguang Wu @ 2012-09-20 21:39 UTC (permalink / raw)
  To: Sasha Levin
  Cc: Michel Lespinasse, linux-mm, riel, peterz, aarcange, hughd,
	daniel.santos, linux-kernel, akpm, Dave Jones, Jiri Slaby

[-- Attachment #1: Type: text/plain, Size: 2302 bytes --]

On Sat, Sep 15, 2012 at 11:26:23AM +0200, Sasha Levin wrote:
> On 09/15/2012 02:00 AM, Michel Lespinasse wrote:
> > All right. Hugh managed to reproduce the issue on his suse laptop, and
> > I came up with a fix.
> >
> > The problem was that in mremap, the new vma's vm_{start,end,pgoff}
> > fields need to be updated before calling anon_vma_clone() so that the
> > new vma will be properly indexed.
> >
> > Patch attached. I expect this should also explain Jiri's reported
> > failure involving splitting THP pages during mremap(), even though we
> > did not manage to reproduce that one.
>
> Initially I've stumbled on it by running trinity inside a KVM tools guest. fwiw,
> the guest is pretty custom and isn't based on suse.
>
> I re-ran tests with patch applied and looks like it fixed the issue, I haven't
> seen the warnings even though it runs for quite a while now.

Not sure if it's the same problem you are talking about, but I got the
below warning and it's still happening in linux-next 20120920:

[   38.482925] scsi_nl_rcv_msg: discarding partial skb
[   62.679879] ------------[ cut here ]------------
[   62.680380] WARNING: at /c/kernel-tests/src/linux/mm/interval_tree.c:109 anon_vma_interval_tree_verify+0x33/0x80()
[   62.681356] Pid: 195, comm: trinity-child0 Not tainted 3.6.0-rc6-next-20120918-08732-g3de9d1a #1
[   62.682130] Call Trace:
[   62.682356]  [<ffffffff810c249f>] ? anon_vma_interval_tree_verify+0x33/0x80
[   62.682968]  [<ffffffff81044356>] warn_slowpath_common+0x5d/0x74
[   62.683577]  [<ffffffff81044424>] warn_slowpath_null+0x15/0x19
[   62.684098]  [<ffffffff810c249f>] anon_vma_interval_tree_verify+0x33/0x80
[   62.684714]  [<ffffffff810ca57c>] validate_mm+0x32/0x15b
[   62.685202]  [<ffffffff810ca767>] vma_link+0x95/0xa4
[   62.685637]  [<ffffffff810cbc31>] copy_vma+0x1c7/0x1fe
[   62.686168]  [<ffffffff810cdd50>] move_vma+0x90/0x1ef
[   62.686614]  [<ffffffff810ce250>] sys_mremap+0x3a1/0x429
[   62.687094]  [<ffffffff813caafe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[   62.687670]  [<ffffffff81b505b9>] system_call_fastpath+0x16/0x1b

Bisected down to 

commit cb58d445d2ec3a06f313e29d6f6af5bef6c9e43c
Author: Michel Lespinasse <walken@google.com>
Date:   Thu Sep 13 10:58:56 2012 +1000

    mm: add CONFIG_DEBUG_VM_RB build option

Thanks,
Fengguang

[-- Attachment #2: dmesg-kvm-fat-3559-2012-09-19-10-31-29-3.6.0-rc6-next-20120918-08732-g3de9d1a-1 --]
[-- Type: text/plain, Size: 165502 bytes --]

[    0.000000] Linux version 3.6.0-rc6-next-20120918-08732-g3de9d1a (kbuild@inn) (gcc version 4.7.1 (Debian 4.7.1-6) ) #1 SMP Wed Sep 19 10:24:03 CST 2012
[    0.000000] Command line: trinity=5m hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 branch=internal-wfg/0day log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10  prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal  root=/dev/ram0 rw link=vmlinuz-2012-09-19-10-25-19-internal-wfg:0day:3de9d1a-3de9d1a-x86_64-randconfig-i013-9-fat BOOT_IMAGE=kernel-tests/kernels/x86_64-randconfig-i013/3de9d1a/vmlinuz-3.6.0-rc6-next-20120918-08732-g3de9d1a
[    0.000000] KERNEL supported cpus:
[    0.000000] CPU: vendor_id 'GenuineIntel' unknown, using generic init.
[    0.000000] CPU: Your system may be unstable.
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000093bff] usable
[    0.000000] BIOS-e820: [mem 0x0000000000093c00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000000fffdfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000fffe000-0x000000000fffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000] debug: ignoring loglevel setting.
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] Hypervisor detected: KVM
[    0.000000] e820: update [mem 0x00000000-0x0000ffff] usable ==> reserved
[    0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000000] e820: last_pfn = 0xfffe max_arch_pfn = 0x400000000
[    0.000000] MTRR default type: write-back
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-FFFFF write-protect
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 00E0000000 mask FFE0000000 uncachable
[    0.000000]   1 disabled
[    0.000000]   2 disabled
[    0.000000]   3 disabled
[    0.000000]   4 disabled
[    0.000000]   5 disabled
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106
[    0.000000] initial memory mapped: [mem 0x00000000-0x1fffffff]
[    0.000000] Base memory trampoline at [ffff88000008d000] 8d000 size 24576
[    0.000000] init_memory_mapping: [mem 0x00000000-0x0fffdfff]
[    0.000000]  [mem 0x00000000-0x0fffdfff] page 4k
[    0.000000] kernel direct mapping tables up to 0xfffdfff @ [mem 0x0e854000-0x0e8d5fff]
[    0.000000] log_buf_len: 8388608
[    0.000000] early log buf free: 128332(97%)
[    0.000000] RAMDISK: [mem 0x0e8d6000-0x0ffeffff]
[    0.000000] ACPI: RSDP 00000000000fd920 00014 (v00 BOCHS )
[    0.000000] ACPI: RSDT 000000000fffe550 00038 (v01 BOCHS  BXPCRSDT 00000001 BXPC 00000001)
[    0.000000] ACPI: FACP 000000000fffff80 00074 (v01 BOCHS  BXPCFACP 00000001 BXPC 00000001)
[    0.000000] ACPI: DSDT 000000000fffe590 01121 (v01   BXPC   BXDSDT 00000001 INTL 20100528)
[    0.000000] ACPI: FACS 000000000fffff40 00040
[    0.000000] ACPI: SSDT 000000000ffffe40 000FF (v01 BOCHS  BXPCSSDT 00000001 BXPC 00000001)
[    0.000000] ACPI: APIC 000000000ffffd50 00080 (v01 BOCHS  BXPCAPIC 00000001 BXPC 00000001)
[    0.000000] ACPI: HPET 000000000ffffd10 00038 (v01 BOCHS  BXPCHPET 00000001 BXPC 00000001)
[    0.000000] ACPI: SSDT 000000000ffff6c0 00644 (v01   BXPC BXSSDTPC 00000001 INTL 20100528)
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] mapped APIC to ffffffffff5fb000 (        fee00000)
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at [mem 0x0000000000000000-0x000000000fffdfff]
[    0.000000] Initmem setup node 0 [mem 0x00000000-0x0fffdfff]
[    0.000000]   NODE_DATA [mem 0x0e023000-0x0e053fff]
[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000000] kvm-clock: cpu 0, msr 0:27b79c1, boot clock
[    0.000000]  [ffffea0000000000-ffffea00003fffff] PMD -> [ffff88000d400000-ffff88000d7fffff] on node 0
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x00010000-0x00ffffff]
[    0.000000]   DMA32    [mem 0x01000000-0xffffffff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00010000-0x00092fff]
[    0.000000]   node   0: [mem 0x00100000-0x0fffdfff]
[    0.000000] On node 0 totalpages: 65409
[    0.000000]   DMA zone: 64 pages used for memmap
[    0.000000]   DMA zone: 6 pages reserved
[    0.000000]   DMA zone: 3901 pages, LIFO batch:0
[    0.000000]   DMA32 zone: 960 pages used for memmap
[    0.000000]   DMA32 zone: 60478 pages, LIFO batch:15
[    0.000000] ACPI: PM-Timer IO Port: 0xb008
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] mapped APIC to ffffffffff5fb000 (        fee00000)
[    0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 2, APIC INT 02
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 05, APIC ID 2, APIC INT 05
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 2, APIC INT 09
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0a, APIC ID 2, APIC INT 0a
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0b, APIC ID 2, APIC INT 0b
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 2, APIC INT 01
[    0.000000] ACPI: IRQ2 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 2, APIC INT 03
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 2, APIC INT 04
[    0.000000] ACPI: IRQ5 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 2, APIC INT 06
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 2, APIC INT 07
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 2, APIC INT 08
[    0.000000] ACPI: IRQ9 used by override.
[    0.000000] ACPI: IRQ10 used by override.
[    0.000000] ACPI: IRQ11 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 2, APIC INT 0c
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 2, APIC INT 0d
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 2, APIC INT 0e
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 2, APIC INT 0f
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[    0.000000] mapped IOAPIC to ffffffffff5fa000 (fec00000)
[    0.000000] nr_irqs_gsi: 40
[    0.000000] PM: Registered nosave memory: 0000000000093000 - 0000000000094000
[    0.000000] PM: Registered nosave memory: 0000000000094000 - 00000000000a0000
[    0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000f0000
[    0.000000] PM: Registered nosave memory: 00000000000f0000 - 0000000000100000
[    0.000000] e820: [mem 0x10000000-0xfeffbfff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on KVM
[    0.000000] setup_percpu: NR_CPUS:4096 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1
[    0.000000] PERCPU: Embedded 474 pages/cpu @ffff88000dc00000 s1918656 r0 d22848 u2097152
[    0.000000] pcpu-alloc: s1918656 r0 d22848 u2097152 alloc=1*2097152
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] kvm-clock: cpu 0, msr 0:ddd39c1, primary cpu clock
[    0.000000] KVM setup async PF for cpu 0
[    0.000000] kvm-stealtime: cpu 0, msr dc0ec00
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total pages: 64379
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: trinity=5m hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 branch=internal-wfg/0day log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10  prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal  root=/dev/ram0 rw link=vmlinuz-2012-09-19-10-25-19-internal-wfg:0day:3de9d1a-3de9d1a-x86_64-randconfig-i013-9-fat BOOT_IMAGE=kernel-tests/kernels/x86_64-randconfig-i013/3de9d1a/vmlinuz-3.6.0-rc6-next-20120918-08732-g3de9d1a
[    0.000000] sysrq: sysrq always enabled.
[    0.000000] PID hash table entries: 1024 (order: 1, 8192 bytes)
[    0.000000] __ex_table already sorted, skipping sort
[    0.000000] Memory: 183604k/262136k available (11599k kernel code, 500k absent, 78032k reserved, 10812k data, 2592k init)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 
[    0.000000] 
[    0.000000] 
[    0.000000] NR_IRQS:262400 nr_irqs:512 16
[    0.000000] console [ttyS0] enabled
[    0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.000000] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.000000] ... MAX_LOCK_DEPTH:          48
[    0.000000] ... MAX_LOCKDEP_KEYS:        8191
[    0.000000] ... CLASSHASH_SIZE:          4096
[    0.000000] ... MAX_LOCKDEP_ENTRIES:     16384
[    0.000000] ... MAX_LOCKDEP_CHAINS:      32768
[    0.000000] ... CHAINHASH_SIZE:          16384
[    0.000000]  memory used by lock dependency info: 6367 kB
[    0.000000]  per task-struct memory footprint: 2688 bytes
[    0.000000] ODEBUG: 7 of 7 active objects replaced
[    0.000000] hpet clockevent registered
[    0.000000] tsc: Detected 3200.304 MHz processor
[    0.000000] tsc: Marking TSC unstable due to TSCs unsynchronized
[    0.020000] Calibrating delay loop (skipped) preset value.. 6400.60 BogoMIPS (lpj=32003040)
[    0.020000] pid_max: default: 4096 minimum: 301
[    0.020000] Security Framework initialized
[    0.020000] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.020000] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.020000] Mount-cache hash table entries: 256
[    0.020000] mce: CPU supports 10 MCE banks
[    0.020000] mce: unknown CPU type - not enabling MCE support
[    0.020000] numa_add_cpu cpu 0 node 0: mask now 0
[    0.020000] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[    0.020000] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0
[    0.020000] tlb_flushall_shift: -1
[    0.020000] debug: unmapping init [mem 0xffffffff8286c000-0xffffffff82875fff]
[    0.021695] ACPI: Core revision 20120711
[    0.026982] Getting VERSION: 50014
[    0.027379] Getting VERSION: 50014
[    0.027690] Getting ID: 0
[    0.027933] Getting ID: ff000000
[    0.028231] Getting LVT0: 8700
[    0.028510] Getting LVT1: 8400
[    0.028823] enabled ExtINT on CPU#0
[    0.029880] ENABLING IO-APIC IRQs
[    0.030008] init IO_APIC IRQs
[    0.030281]  apic 2 pin 0 not connected
[    0.030642] IOAPIC[0]: Set routing entry (2-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 Dest:1)
[    0.031448] IOAPIC[0]: Set routing entry (2-2 -> 0x30 -> IRQ 0 Mode:0 Active:0 Dest:1)
[    0.032173] IOAPIC[0]: Set routing entry (2-3 -> 0x33 -> IRQ 3 Mode:0 Active:0 Dest:1)
[    0.032972] IOAPIC[0]: Set routing entry (2-4 -> 0x34 -> IRQ 4 Mode:0 Active:0 Dest:1)
[    0.033698] IOAPIC[0]: Set routing entry (2-5 -> 0x35 -> IRQ 5 Mode:1 Active:0 Dest:1)
[    0.034426] IOAPIC[0]: Set routing entry (2-6 -> 0x36 -> IRQ 6 Mode:0 Active:0 Dest:1)
[    0.035222] IOAPIC[0]: Set routing entry (2-7 -> 0x37 -> IRQ 7 Mode:0 Active:0 Dest:1)
[    0.035947] IOAPIC[0]: Set routing entry (2-8 -> 0x38 -> IRQ 8 Mode:0 Active:0 Dest:1)
[    0.036667] IOAPIC[0]: Set routing entry (2-9 -> 0x39 -> IRQ 9 Mode:1 Active:0 Dest:1)
[    0.037481] IOAPIC[0]: Set routing entry (2-10 -> 0x3a -> IRQ 10 Mode:1 Active:0 Dest:1)
[    0.038225] IOAPIC[0]: Set routing entry (2-11 -> 0x3b -> IRQ 11 Mode:1 Active:0 Dest:1)
[    0.039038] IOAPIC[0]: Set routing entry (2-12 -> 0x3c -> IRQ 12 Mode:0 Active:0 Dest:1)
[    0.040022] IOAPIC[0]: Set routing entry (2-13 -> 0x3d -> IRQ 13 Mode:0 Active:0 Dest:1)
[    0.040751] IOAPIC[0]: Set routing entry (2-14 -> 0x3e -> IRQ 14 Mode:0 Active:0 Dest:1)
[    0.041560] IOAPIC[0]: Set routing entry (2-15 -> 0x3f -> IRQ 15 Mode:0 Active:0 Dest:1)
[    0.042285]  apic 2 pin 16 not connected
[    0.042636]  apic 2 pin 17 not connected
[    0.043062]  apic 2 pin 18 not connected
[    0.043410]  apic 2 pin 19 not connected
[    0.043758]  apic 2 pin 20 not connected
[    0.044111]  apic 2 pin 21 not connected
[    0.044459]  apic 2 pin 22 not connected
[    0.044808]  apic 2 pin 23 not connected
[    0.045374] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.046072] smpboot: CPU0: GenuineIntel Common KVM processor stepping 01
[    0.046903] Using local APIC timer interrupts.
[    0.046903] calibrating APIC timer ...
[    0.050000] ... lapic delta = 6252978
[    0.050000] ... PM-Timer delta = 358141
[    0.050000] ... PM-Timer result ok
[    0.050000] ..... delta 6252978
[    0.050000] ..... mult: 268563360
[    0.050000] ..... calibration result: 10004764
[    0.050000] ..... CPU clock speed is 3201.7764 MHz.
[    0.050000] ..... host bus clock speed is 1000.4764 MHz.
[    0.050000] Performance Events: 
[    0.050000] SMP alternatives: lockdep: fixing up alternatives
[    0.050000] smpboot: Booting Node   0, Processors  #1 OK
[    0.020000] kvm-clock: cpu 1, msr 0:dfd39c1, secondary cpu clock
[    0.020000] masked ExtINT on CPU#1
[    0.020000] numa_add_cpu cpu 1 node 0: mask now 0-1
[    0.054734] Brought up 2 CPUs
[    0.054734] KVM setup async PF for cpu 1
[    0.054734] kvm-stealtime: cpu 1, msr de0ec00
[    0.054734] ----------------
[    0.054734] | NMI testsuite:
[    0.054734] --------------------
[    0.054734]   remote IPI:  ok  |
[    0.054734]    local IPI:  ok  |
[    0.100023] --------------------
[    0.100376] Good, all   2 testcases passed! |
[    0.100779] ---------------------------------
[    0.101185] smpboot: Total of 2 processors activated (12801.21 BogoMIPS)
[    0.102098] devtmpfs: initialized
[    0.102098] device: 'platform': device_add
[    0.102098] PM: Adding info for No Bus:platform
[    0.102098] bus: 'platform': registered
[    0.102098] bus: 'cpu': registered
[    0.102098] device: 'cpu': device_add
[    0.102098] PM: Adding info for No Bus:cpu
[    0.102098] EVM: security.ima
[    0.102098] EVM: security.capability
[    0.104288] atomic64 test passed for x86-64 platform with CX8 and with SSE
[    0.104288] bus: 'virtio': registered
[    0.104288] device class 'regulator': registering
[    0.104288] Registering platform device 'reg-dummy'. Parent at platform
[    0.104288] device: 'reg-dummy': device_add
[    0.104288] bus: 'platform': add device reg-dummy
[    0.104288] PM: Adding info for platform:reg-dummy
[    0.104288] bus: 'platform': add driver reg-dummy
[    0.104634] bus: 'platform': driver_probe_device: matched device reg-dummy with driver reg-dummy
[    0.105490] bus: 'platform': really_probe: probing driver reg-dummy with device reg-dummy
[    0.106283] device: 'regulator.0': device_add
[    0.106752] PM: Adding info for No Bus:regulator.0
[    0.107310] regulator-dummy: no parameters
[    0.110083] driver: 'reg-dummy': driver_bound: bound to device 'reg-dummy'
[    0.114666] bus: 'platform': really_probe: bound device reg-dummy to driver reg-dummy
[    0.114666] NET: Registered protocol family 16
[    0.114666] device class 'bdi': registering
[    0.114666] device class 'pci_bus': registering
[    0.114666] bus: 'pci': registered
[    0.114666] device: 'rapidio': device_add
[    0.114666] PM: Adding info for No Bus:rapidio
[    0.114692] bus: 'rapidio': registered
[    0.115037] device class 'backlight': registering
[    0.115482] device class 'video_output': registering
[    0.116029] device class 'tty': registering
[    0.116465] bus: 'node': registered
[    0.116793] device: 'node': device_add
[    0.117159] PM: Adding info for No Bus:node
[    0.117646] bus: 'hsi': registered
[    0.140658] ACPI: bus type pci registered
[    0.141030] device class 'dma': registering
[    0.141466] PCI: Using configuration type 1 for base access
[    0.142392] device: 'node0': device_add
[    0.142840] bus: 'node': add device node0
[    0.143212] PM: Adding info for node:node0
[    0.143623] device: 'cpu0': device_add
[    0.143979] bus: 'cpu': add device cpu0
[    0.144343] PM: Adding info for cpu:cpu0
[    0.144812] device: 'cpu1': device_add
[    0.145157] bus: 'cpu': add device cpu1
[    0.145527] PM: Adding info for cpu:cpu1
[    0.170622] device: 'default': device_add
[    0.171026] PM: Adding info for No Bus:default
[    0.175929] bio: create slab <bio-0> at 0
[    0.175929] device class 'block': registering
[    0.175929] ACPI: Added _OSI(Module Device)
[    0.175929] ACPI: Added _OSI(Processor Device)
[    0.175929] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.175929] ACPI: Added _OSI(Processor Aggregator Device)
[    0.175929] ACPI: EC: Look up EC in DSDT
[    0.190009] ACPI: Interpreter enabled
[    0.190009] ACPI: (supports S0 S4 S5)
[    0.190425] ACPI: Using IOAPIC for interrupt routing
[    0.190912] bus: 'acpi': registered
[    0.191232] bus: 'acpi': add driver power
[    0.191764] device: 'LNXSYSTM:00': device_add
[    0.192169] bus: 'acpi': add device LNXSYSTM:00
[    0.192586] PM: Adding info for acpi:LNXSYSTM:00
[    0.193161] device: 'device:00': device_add
[    0.193655] bus: 'acpi': add device device:00
[    0.194065] PM: Adding info for acpi:device:00
[    0.194577] device: 'PNP0A03:00': device_add
[    0.194975] bus: 'acpi': add device PNP0A03:00
[    0.195385] PM: Adding info for acpi:PNP0A03:00
[    0.196881] device: 'device:01': device_add
[    0.197299] bus: 'acpi': add device device:01
[    0.197789] PM: Adding info for acpi:device:01
[    0.198298] device: 'device:02': device_add
[    0.198689] bus: 'acpi': add device device:02
[    0.199090] PM: Adding info for acpi:device:02
[    0.199687] device: 'PNP0B00:00': device_add
[    0.200010] bus: 'acpi': add device PNP0B00:00
[    0.200457] PM: Adding info for acpi:PNP0B00:00
[    0.201017] device: 'PNP0303:00': device_add
[    0.201411] bus: 'acpi': add device PNP0303:00
[    0.201895] PM: Adding info for acpi:PNP0303:00
[    0.202464] device: 'PNP0F13:00': device_add
[    0.202889] bus: 'acpi': add device PNP0F13:00
[    0.203297] PM: Adding info for acpi:PNP0F13:00
[    0.203939] device: 'PNP0700:00': device_add
[    0.204331] bus: 'acpi': add device PNP0700:00
[    0.204818] PM: Adding info for acpi:PNP0700:00
[    0.205703] device: 'PNP0400:00': device_add
[    0.206101] bus: 'acpi': add device PNP0400:00
[    0.206513] PM: Adding info for acpi:PNP0400:00
[    0.207193] device: 'PNP0501:00': device_add
[    0.207673] bus: 'acpi': add device PNP0501:00
[    0.208079] PM: Adding info for acpi:PNP0501:00
[    0.208721] device: 'device:03': device_add
[    0.209106] bus: 'acpi': add device device:03
[    0.209589] PM: Adding info for acpi:device:03
[    0.210131] device: 'device:04': device_add
[    0.210518] bus: 'acpi': add device device:04
[    0.210914] PM: Adding info for acpi:device:04
[    0.211517] device: 'device:05': device_add
[    0.211924] bus: 'acpi': add device device:05
[    0.212327] PM: Adding info for acpi:device:05
[    0.212928] device: 'device:06': device_add
[    0.213312] bus: 'acpi': add device device:06
[    0.213798] PM: Adding info for acpi:device:06
[    0.214331] device: 'device:07': device_add
[    0.214751] bus: 'acpi': add device device:07
[    0.215153] PM: Adding info for acpi:device:07
[    0.215742] device: 'device:08': device_add
[    0.216125] bus: 'acpi': add device device:08
[    0.216529] PM: Adding info for acpi:device:08
[    0.217061] device: 'device:09': device_add
[    0.217547] bus: 'acpi': add device device:09
[    0.217953] PM: Adding info for acpi:device:09
[    0.218479] device: 'device:0a': device_add
[    0.218865] bus: 'acpi': add device device:0a
[    0.219267] PM: Adding info for acpi:device:0a
[    0.220072] device: 'device:0b': device_add
[    0.220488] bus: 'acpi': add device device:0b
[    0.220974] PM: Adding info for acpi:device:0b
[    0.221494] device: 'device:0c': device_add
[    0.221963] bus: 'acpi': add device device:0c
[    0.222364] PM: Adding info for acpi:device:0c
[    0.222905] device: 'device:0d': device_add
[    0.223319] bus: 'acpi': add device device:0d
[    0.223806] PM: Adding info for acpi:device:0d
[    0.224327] device: 'device:0e': device_add
[    0.224719] bus: 'acpi': add device device:0e
[    0.225121] PM: Adding info for acpi:device:0e
[    0.225729] device: 'device:0f': device_add
[    0.226145] bus: 'acpi': add device device:0f
[    0.226547] PM: Adding info for acpi:device:0f
[    0.227071] device: 'device:10': device_add
[    0.227455] bus: 'acpi': add device device:10
[    0.227941] PM: Adding info for acpi:device:10
[    0.228475] device: 'device:11': device_add
[    0.228974] bus: 'acpi': add device device:11
[    0.229385] PM: Adding info for acpi:device:11
[    0.229982] device: 'device:12': device_add
[    0.230010] bus: 'acpi': add device device:12
[    0.230416] PM: Adding info for acpi:device:12
[    0.230949] device: 'device:13': device_add
[    0.231442] bus: 'acpi': add device device:13
[    0.231844] PM: Adding info for acpi:device:13
[    0.232370] device: 'device:14': device_add
[    0.232756] bus: 'acpi': add device device:14
[    0.233154] PM: Adding info for acpi:device:14
[    0.233766] device: 'device:15': device_add
[    0.234179] bus: 'acpi': add device device:15
[    0.234587] PM: Adding info for acpi:device:15
[    0.235105] device: 'device:16': device_add
[    0.235520] bus: 'acpi': add device device:16
[    0.235919] PM: Adding info for acpi:device:16
[    0.236530] device: 'device:17': device_add
[    0.236943] bus: 'acpi': add device device:17
[    0.237429] PM: Adding info for acpi:device:17
[    0.237949] device: 'device:18': device_add
[    0.238340] bus: 'acpi': add device device:18
[    0.238739] PM: Adding info for acpi:device:18
[    0.239270] device: 'device:19': device_add
[    0.240043] bus: 'acpi': add device device:19
[    0.240450] PM: Adding info for acpi:device:19
[    0.240988] device: 'device:1a': device_add
[    0.241387] bus: 'acpi': add device device:1a
[    0.241840] PM: Adding info for acpi:device:1a
[    0.242372] device: 'device:1b': device_add
[    0.242792] bus: 'acpi': add device device:1b
[    0.243195] PM: Adding info for acpi:device:1b
[    0.243750] device: 'device:1c': device_add
[    0.244133] bus: 'acpi': add device device:1c
[    0.244533] PM: Adding info for acpi:device:1c
[    0.245153] device: 'device:1d': device_add
[    0.245594] bus: 'acpi': add device device:1d
[    0.246001] PM: Adding info for acpi:device:1d
[    0.246528] device: 'device:1e': device_add
[    0.246990] bus: 'acpi': add device device:1e
[    0.247391] PM: Adding info for acpi:device:1e
[    0.247946] device: 'device:1f': device_add
[    0.248360] bus: 'acpi': add device device:1f
[    0.248768] PM: Adding info for acpi:device:1f
[    0.249288] device: 'device:20': device_add
[    0.249751] bus: 'acpi': add device device:20
[    0.250013] PM: Adding info for acpi:device:20
[    0.250560] device: 'device:21': device_add
[    0.250975] bus: 'acpi': add device device:21
[    0.251379] PM: Adding info for acpi:device:21
[    0.251930] device: 'device:22': device_add
[    0.252316] bus: 'acpi': add device device:22
[    0.252793] PM: Adding info for acpi:device:22
[    0.253766] device: 'PNP0103:00': device_add
[    0.254193] bus: 'acpi': add device PNP0103:00
[    0.254685] PM: Adding info for acpi:PNP0103:00
[    0.255449] device: 'PNP0C0F:00': device_add
[    0.255847] bus: 'acpi': add device PNP0C0F:00
[    0.256248] PM: Adding info for acpi:PNP0C0F:00
[    0.257038] device: 'PNP0C0F:01': device_add
[    0.257505] bus: 'acpi': add device PNP0C0F:01
[    0.257913] PM: Adding info for acpi:PNP0C0F:01
[    0.258694] device: 'PNP0C0F:02': device_add
[    0.259087] bus: 'acpi': add device PNP0C0F:02
[    0.259502] PM: Adding info for acpi:PNP0C0F:02
[    0.260311] device: 'PNP0C0F:03': device_add
[    0.260782] bus: 'acpi': add device PNP0C0F:03
[    0.261182] PM: Adding info for acpi:PNP0C0F:03
[    0.261962] device: 'PNP0C0F:04': device_add
[    0.262355] bus: 'acpi': add device PNP0C0F:04
[    0.262872] PM: Adding info for acpi:PNP0C0F:04
[    0.263471] device: 'LNXCPU:00': device_add
[    0.263873] bus: 'acpi': add device LNXCPU:00
[    0.264270] PM: Adding info for acpi:LNXCPU:00
[    0.264949] device: 'LNXCPU:01': device_add
[    0.265375] bus: 'acpi': add device LNXCPU:01
[    0.265818] PM: Adding info for acpi:LNXCPU:01
[    0.266345] device: 'device:23': device_add
[    0.266803] bus: 'acpi': add device device:23
[    0.267199] PM: Adding info for acpi:device:23
[    0.267693] device: 'LNXPWRBN:00': device_add
[    0.268100] bus: 'acpi': add device LNXPWRBN:00
[    0.268593] PM: Adding info for acpi:LNXPWRBN:00
[    0.269241] bus: 'acpi': add driver ec
[    0.272080] ACPI: No dock devices found.
[    0.272438] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.273319] bus: 'acpi': add driver pci_root
[    0.273785] bus: 'acpi': driver_probe_device: matched device PNP0A03:00 with driver pci_root
[    0.274521] bus: 'acpi': really_probe: probing driver pci_root with device PNP0A03:00
[    0.275322] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.275952] device: 'pci0000:00': device_add
[    0.276400] PM: Adding info for No Bus:pci0000:00
[    0.276923] device: '0000:00': device_add
[    0.277316] PM: Adding info for No Bus:0000:00
[    0.277842] PCI host bridge to bus 0000:00
[    0.278214] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.278789] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7]
[    0.279330] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff]
[    0.279889] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
[    0.280005] pci_bus 0000:00: root bus resource [mem 0xe0000000-0xfebfffff]
[    0.280682] pci_bus 0000:00: scanning bus
[    0.281087] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
[    0.281707] pci 0000:00:00.0: calling quirk_mmio_always_on+0x0/0xa
[    0.282637] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100
[    0.283595] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180
[    0.285919] pci 0000:00:01.1: reg 20: [io  0xc1c0-0xc1cf]
[    0.287273] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000
[    0.287819] pci 0000:00:01.3: calling acpi_pm_check_blacklist+0x0/0x38
[    0.288826] pci 0000:00:01.3: calling quirk_piix4_acpi+0x0/0x154
[    0.289455] pci 0000:00:01.3: quirk: [io  0xb000-0xb03f] claimed by PIIX4 ACPI
[    0.290087] pci 0000:00:01.3: quirk: [io  0xb100-0xb10f] claimed by PIIX4 SMB
[    0.290765] pci 0000:00:01.3: calling pci_fixup_piix4_acpi+0x0/0x10
[    0.291441] pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000
[    0.294472] pci 0000:00:02.0: reg 10: [mem 0xfc000000-0xfdffffff pref]
[    0.295964] pci 0000:00:02.0: reg 14: [mem 0xfebf4000-0xfebf4fff]
[    0.301283] pci 0000:00:02.0: reg 30: [mem 0xfebe0000-0xfebeffff pref]
[    0.302152] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000
[    0.303378] pci 0000:00:03.0: reg 10: [mem 0xfeba0000-0xfebbffff]
[    0.304616] pci 0000:00:03.0: reg 14: [io  0xc000-0xc03f]
[    0.308221] pci 0000:00:03.0: reg 30: [mem 0xfebc0000-0xfebdffff pref]
[    0.309008] pci 0000:00:04.0: [8086:2668] type 00 class 0x040300
[    0.310008] pci 0000:00:04.0: reg 10: [mem 0xfebf0000-0xfebf3fff]
[    0.312934] pci 0000:00:05.0: [1af4:1001] type 00 class 0x010000
[    0.314199] pci 0000:00:05.0: reg 10: [io  0xc040-0xc07f]
[    0.315378] pci 0000:00:05.0: reg 14: [mem 0xfebf5000-0xfebf5fff]
[    0.319428] pci 0000:00:06.0: [1af4:1001] type 00 class 0x010000
[    0.320735] pci 0000:00:06.0: reg 10: [io  0xc080-0xc0bf]
[    0.321911] pci 0000:00:06.0: reg 14: [mem 0xfebf6000-0xfebf6fff]
[    0.325942] pci 0000:00:07.0: [1af4:1001] type 00 class 0x010000
[    0.327201] pci 0000:00:07.0: reg 10: [io  0xc0c0-0xc0ff]
[    0.328295] pci 0000:00:07.0: reg 14: [mem 0xfebf7000-0xfebf7fff]
[    0.332461] pci 0000:00:08.0: [1af4:1001] type 00 class 0x010000
[    0.333795] pci 0000:00:08.0: reg 10: [io  0xc100-0xc13f]
[    0.334960] pci 0000:00:08.0: reg 14: [mem 0xfebf8000-0xfebf8fff]
[    0.339039] pci 0000:00:09.0: [1af4:1001] type 00 class 0x010000
[    0.340005] pci 0000:00:09.0: reg 10: [io  0xc140-0xc17f]
[    0.341169] pci 0000:00:09.0: reg 14: [mem 0xfebf9000-0xfebf9fff]
[    0.345215] pci 0000:00:0a.0: [1af4:1001] type 00 class 0x010000
[    0.346490] pci 0000:00:0a.0: reg 10: [io  0xc180-0xc1bf]
[    0.347584] pci 0000:00:0a.0: reg 14: [mem 0xfebfa000-0xfebfafff]
[    0.351843] pci 0000:00:0b.0: [8086:25ab] type 00 class 0x088000
[    0.352789] pci 0000:00:0b.0: reg 10: [mem 0xfebfb000-0xfebfb00f]
[    0.355642] pci_bus 0000:00: fixups for bus
[    0.356023] pci_bus 0000:00: bus scan returning with max=00
[    0.356552] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[    0.360888]  pci0000:00: ACPI _OSC support notification failed, disabling PCIe ASPM
[    0.361569]  pci0000:00: Unable to request _OSC control (_OSC support mask: 0x08)
[    0.362344] device: '0000:00:00.0': device_add
[    0.364778] bus: 'pci': add device 0000:00:00.0
[    0.365292] PM: Adding info for pci:0000:00:00.0
[    0.365787] device: '0000:00:01.0': device_add
[    0.368090] bus: 'pci': add device 0000:00:01.0
[    0.368694] PM: Adding info for pci:0000:00:01.0
[    0.369139] device: '0000:00:01.1': device_add
[    0.371492] bus: 'pci': add device 0000:00:01.1
[    0.371986] PM: Adding info for pci:0000:00:01.1
[    0.372425] device: '0000:00:01.3': device_add
[    0.374890] bus: 'pci': add device 0000:00:01.3
[    0.375418] PM: Adding info for pci:0000:00:01.3
[    0.375877] device: '0000:00:02.0': device_add
[    0.378213] bus: 'pci': add device 0000:00:02.0
[    0.378789] PM: Adding info for pci:0000:00:02.0
[    0.379226] device: '0000:00:03.0': device_add
[    0.381569] bus: 'pci': add device 0000:00:03.0
[    0.382134] PM: Adding info for pci:0000:00:03.0
[    0.382635] device: '0000:00:04.0': device_add
[    0.384958] bus: 'pci': add device 0000:00:04.0
[    0.385486] PM: Adding info for pci:0000:00:04.0
[    0.385942] device: '0000:00:05.0': device_add
[    0.388218] bus: 'pci': add device 0000:00:05.0
[    0.388788] PM: Adding info for pci:0000:00:05.0
[    0.389231] device: '0000:00:06.0': device_add
[    0.391683] bus: 'pci': add device 0000:00:06.0
[    0.392275] PM: Adding info for pci:0000:00:06.0
[    0.392791] device: '0000:00:07.0': device_add
[    0.395180] bus: 'pci': add device 0000:00:07.0
[    0.395685] PM: Adding info for pci:0000:00:07.0
[    0.396174] device: '0000:00:08.0': device_add
[    0.398510] bus: 'pci': add device 0000:00:08.0
[    0.399078] PM: Adding info for pci:0000:00:08.0
[    0.399517] device: '0000:00:09.0': device_add
[    0.401915] bus: 'pci': add device 0000:00:09.0
[    0.402447] PM: Adding info for pci:0000:00:09.0
[    0.402972] device: '0000:00:0a.0': device_add
[    0.405290] bus: 'pci': add device 0000:00:0a.0
[    0.405799] PM: Adding info for pci:0000:00:0a.0
[    0.406237] device: '0000:00:0b.0': device_add
[    0.408655] bus: 'pci': add device 0000:00:0b.0
[    0.409154] PM: Adding info for pci:0000:00:0b.0
[    0.409670] driver: 'PNP0A03:00': driver_bound: bound to device 'pci_root'
[    0.410009] bus: 'acpi': really_probe: bound device PNP0A03:00 to driver pci_root
[    0.410805] bus: 'acpi': add driver pci_link
[    0.411216] bus: 'acpi': driver_probe_device: matched device PNP0C0F:00 with driver pci_link
[    0.411968] bus: 'acpi': really_probe: probing driver pci_link with device PNP0C0F:00
[    0.412935] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[    0.413660] driver: 'PNP0C0F:00': driver_bound: bound to device 'pci_link'
[    0.414270] bus: 'acpi': really_probe: bound device PNP0C0F:00 to driver pci_link
[    0.415004] bus: 'acpi': driver_probe_device: matched device PNP0C0F:01 with driver pci_link
[    0.415755] bus: 'acpi': really_probe: probing driver pci_link with device PNP0C0F:01
[    0.416759] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[    0.417475] driver: 'PNP0C0F:01': driver_bound: bound to device 'pci_link'
[    0.418085] bus: 'acpi': really_probe: bound device PNP0C0F:01 to driver pci_link
[    0.418830] bus: 'acpi': driver_probe_device: matched device PNP0C0F:02 with driver pci_link
[    0.419573] bus: 'acpi': really_probe: probing driver pci_link with device PNP0C0F:02
[    0.420241] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[    0.420880] driver: 'PNP0C0F:02': driver_bound: bound to device 'pci_link'
[    0.421572] bus: 'acpi': really_probe: bound device PNP0C0F:02 to driver pci_link
[    0.422306] bus: 'acpi': driver_probe_device: matched device PNP0C0F:03 with driver pci_link
[    0.423048] bus: 'acpi': really_probe: probing driver pci_link with device PNP0C0F:03
[    0.423887] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[    0.424595] driver: 'PNP0C0F:03': driver_bound: bound to device 'pci_link'
[    0.425235] bus: 'acpi': really_probe: bound device PNP0C0F:03 to driver pci_link
[    0.425891] bus: 'acpi': driver_probe_device: matched device PNP0C0F:04 with driver pci_link
[    0.426710] bus: 'acpi': really_probe: probing driver pci_link with device PNP0C0F:04
[    0.427573] ACPI: PCI Interrupt Link [LNKS] (IRQs 9) *0
[    0.428236] driver: 'PNP0C0F:04': driver_bound: bound to device 'pci_link'
[    0.428848] bus: 'acpi': really_probe: bound device PNP0C0F:04 to driver pci_link
[    0.430097] bus: 'pnp': registered
[    0.430528] bus: 'xen-backend': registered
[    0.430971] bus: 'xen': registered
[    0.431292] bus: 'platform': add driver gpio-regulator
[    0.431856] device class 'misc': registering
[    0.436930] bus: 'tifm': registered
[    0.436930] device class 'tifm_adapter': registering
[    0.436930] device class 'scsi_host': registering
[    0.436930] bus: 'scsi': registered
[    0.436930] device class 'scsi_device': registering
[    0.436930] SCSI subsystem initialized
[    0.436930] ACPI: bus type scsi registered
[    0.440582] device class 'ata_link': registering
[    0.440595] device class 'ata_port': registering
[    0.441022] device class 'ata_device': registering
[    0.441569] libata version 3.00 loaded.
[    0.441922] device class 'mdio_bus': registering
[    0.442508] bus: 'mdio_bus': registered
[    0.442863] bus: 'mdio_bus': add driver Generic PHY
[    0.443395] device class 'pcmcia_socket': registering
[    0.443395] ACPI: bus type usb registered
[    0.443395] bus: 'usb': registered
[    0.443395] bus: 'usb': add driver usbfs
[    0.443395] usbcore: registered new interface driver usbfs
[    0.443395] bus: 'usb': add driver hub
[    0.443395] usbcore: registered new interface driver hub
[    0.446881] bus: 'usb': add driver usb
[    0.446881] usbcore: registered new device driver usb
[    0.446881] device class 'udc': registering
[    0.446881] bus: 'serio': registered
[    0.446881] bus: 'gameport': registered
[    0.446881] device class 'input': registering
[    0.446881] device class 'rtc': registering
[    0.446881] Linux video capture interface: v2.00
[    0.446881] device class 'video4linux': registering
[    0.446881] device class 'power_supply': registering
[    0.446881] device class 'hwmon': registering
[    0.452789] bus: 'mmc': registered
[    0.452789] device class 'mmc_host': registering
[    0.452789] bus: 'sdio': registered
[    0.452789] device class 'leds': registering
[    0.452789] device class 'devfreq': registering
[    0.452789] bus: 'iio': registered
[    0.452789] device class 'sound': registering
[    0.452789] PCI: Using ACPI for IRQ routing
[    0.452789] PCI: pci_cache_line_size set to 64 bytes
[    0.452789] pci 0000:00:01.1: BAR 0: reserving [io  0x01f0-0x01f7 flags 0x110] (d=0, p=0)
[    0.453056] pci 0000:00:01.1: BAR 1: reserving [io  0x03f6 flags 0x110] (d=0, p=0)
[    0.453802] pci 0000:00:01.1: BAR 2: reserving [io  0x0170-0x0177 flags 0x110] (d=0, p=0)
[    0.454598] pci 0000:00:01.1: BAR 3: reserving [io  0x0376 flags 0x110] (d=0, p=0)
[    0.455261] pci 0000:00:01.1: BAR 4: reserving [io  0xc1c0-0xc1cf flags 0x40101] (d=0, p=0)
[    0.456022] pci 0000:00:02.0: BAR 0: reserving [mem 0xfc000000-0xfdffffff flags 0x42208] (d=0, p=0)
[    0.456897] pci 0000:00:02.0: BAR 1: reserving [mem 0xfebf4000-0xfebf4fff flags 0x40200] (d=0, p=0)
[    0.457777] pci 0000:00:03.0: BAR 0: reserving [mem 0xfeba0000-0xfebbffff flags 0x40200] (d=0, p=0)
[    0.458647] pci 0000:00:03.0: BAR 1: reserving [io  0xc000-0xc03f flags 0x40101] (d=0, p=0)
[    0.459469] pci 0000:00:04.0: BAR 0: reserving [mem 0xfebf0000-0xfebf3fff flags 0x40200] (d=0, p=0)
[    0.460016] pci 0000:00:05.0: BAR 0: reserving [io  0xc040-0xc07f flags 0x40101] (d=0, p=0)
[    0.460837] pci 0000:00:05.0: BAR 1: reserving [mem 0xfebf5000-0xfebf5fff flags 0x40200] (d=0, p=0)
[    0.461717] pci 0000:00:06.0: BAR 0: reserving [io  0xc080-0xc0bf flags 0x40101] (d=0, p=0)
[    0.462531] pci 0000:00:06.0: BAR 1: reserving [mem 0xfebf6000-0xfebf6fff flags 0x40200] (d=0, p=0)
[    0.463422] pci 0000:00:07.0: BAR 0: reserving [io  0xc0c0-0xc0ff flags 0x40101] (d=0, p=0)
[    0.464238] pci 0000:00:07.0: BAR 1: reserving [mem 0xfebf7000-0xfebf7fff flags 0x40200] (d=0, p=0)
[    0.465045] pci 0000:00:08.0: BAR 0: reserving [io  0xc100-0xc13f flags 0x40101] (d=0, p=0)
[    0.470004] pci 0000:00:08.0: BAR 1: reserving [mem 0xfebf8000-0xfebf8fff flags 0x40200] (d=0, p=0)
[    0.470004] pci 0000:00:09.0: BAR 0: reserving [io  0xc140-0xc17f flags 0x40101] (d=0, p=0)
[    0.470004] pci 0000:00:09.0: BAR 1: reserving [mem 0xfebf9000-0xfebf9fff flags 0x40200] (d=0, p=0)
[    0.470004] pci 0000:00:0a.0: BAR 0: reserving [io  0xc180-0xc1bf flags 0x40101] (d=0, p=0)
[    0.470004] pci 0000:00:0a.0: BAR 1: reserving [mem 0xfebfa000-0xfebfafff flags 0x40200] (d=0, p=0)
[    0.470016] pci 0000:00:0b.0: BAR 0: reserving [mem 0xfebfb000-0xfebfb00f flags 0x40200] (d=0, p=0)
[    0.471005] e820: reserve RAM buffer [mem 0x00093c00-0x0009ffff]
[    0.471625] e820: reserve RAM buffer [mem 0x0fffe000-0x0fffffff]
[    0.472247] device class 'net': registering
[    0.472752] device: 'lo': device_add
[    0.473429] PM: Adding info for No Bus:lo
[    0.474246] NET: Registered protocol family 23
[    0.474678] NetLabel: Initializing
[    0.474989] NetLabel:  domain hash size = 128
[    0.475399] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.475917] NetLabel:  unlabeled traffic allowed by default
[    0.476504] nfc: nfc_init: NFC Core ver 0.1
[    0.476882] device class 'nfc': registering
[    0.477485] NET: Registered protocol family 39
[    0.478532] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
[    0.479247] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    0.480137] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
[    0.490051] Switching to clocksource kvm-clock
[    0.490607] bus: 'pnp': add driver system
[    0.490713] pnp: PnP ACPI init
[    0.491019] device: 'pnp0': device_add
[    0.491382] PM: Adding info for No Bus:pnp0
[    0.491801] ACPI: bus type pnp registered
[    0.492214] pnp 00:00: [bus 00-ff]
[    0.492566] pnp 00:00: [io  0x0cf8-0x0cff]
[    0.492945] pnp 00:00: [io  0x0000-0x0cf7 window]
[    0.493378] pnp 00:00: [io  0x0d00-0xffff window]
[    0.493843] pnp 00:00: [mem 0x000a0000-0x000bffff window]
[    0.494329] pnp 00:00: [mem 0xe0000000-0xfebfffff window]
[    0.494936] device: '00:00': device_add
[    0.495357] bus: 'pnp': add device 00:00
[    0.495803] PM: Adding info for pnp:00:00
[    0.496196] pnp 00:00: Plug and Play ACPI device, IDs PNP0a03 (active)
[    0.496897] pnp 00:01: [io  0x0070-0x0071]
[    0.497282] IOAPIC[0]: Set routing entry (2-8 -> 0x38 -> IRQ 8 Mode:0 Active:0 Dest:3)
[    0.498069] pnp 00:01: [irq 8]
[    0.498345] pnp 00:01: [io  0x0072-0x0077]
[    0.498789] device: '00:01': device_add
[    0.499154] bus: 'pnp': add device 00:01
[    0.499604] PM: Adding info for pnp:00:01
[    0.499988] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.500746] pnp 00:02: [io  0x0060]
[    0.501063] pnp 00:02: [io  0x0064]
[    0.501437] IOAPIC[0]: Set routing entry (2-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 Dest:3)
[    0.502154] pnp 00:02: [irq 1]
[    0.502510] device: '00:02': device_add
[    0.502873] bus: 'pnp': add device 00:02
[    0.503234] PM: Adding info for pnp:00:02
[    0.503688] pnp 00:02: Plug and Play ACPI device, IDs PNP0303 (active)
[    0.504349] IOAPIC[0]: Set routing entry (2-12 -> 0x3c -> IRQ 12 Mode:0 Active:0 Dest:3)
[    0.505148] pnp 00:03: [irq 12]
[    0.505553] device: '00:03': device_add
[    0.505923] bus: 'pnp': add device 00:03
[    0.506291] PM: Adding info for pnp:00:03
[    0.506751] pnp 00:03: Plug and Play ACPI device, IDs PNP0f13 (active)
[    0.507479] pnp 00:04: [io  0x03f2-0x03f5]
[    0.507854] pnp 00:04: [io  0x03f7]
[    0.508173] IOAPIC[0]: Set routing entry (2-6 -> 0x36 -> IRQ 6 Mode:0 Active:0 Dest:3)
[    0.508963] pnp 00:04: [irq 6]
[    0.509244] pnp 00:04: [dma 2]
[    0.509605] device: '00:04': device_add
[    0.509973] bus: 'pnp': add device 00:04
[    0.510480] PM: Adding info for pnp:00:04
[    0.510866] pnp 00:04: Plug and Play ACPI device, IDs PNP0700 (active)
[    0.511657] pnp 00:05: [io  0x0378-0x037f]
[    0.512032] IOAPIC[0]: Set routing entry (2-7 -> 0x37 -> IRQ 7 Mode:0 Active:0 Dest:3)
[    0.512819] pnp 00:05: [irq 7]
[    0.513097] device: '00:05': device_add
[    0.513549] bus: 'pnp': add device 00:05
[    0.513957] PM: Adding info for pnp:00:05
[    0.514339] pnp 00:05: Plug and Play ACPI device, IDs PNP0400 (active)
[    0.515131] pnp 00:06: [io  0x03f8-0x03ff]
[    0.515583] IOAPIC[0]: Set routing entry (2-4 -> 0x34 -> IRQ 4 Mode:0 Active:0 Dest:3)
[    0.516284] pnp 00:06: [irq 4]
[    0.516640] device: '00:06': device_add
[    0.517009] bus: 'pnp': add device 00:06
[    0.517373] PM: Adding info for pnp:00:06
[    0.517827] pnp 00:06: Plug and Play ACPI device, IDs PNP0501 (active)
[    0.518985] pnp 00:07: [mem 0xfed00000-0xfed003ff]
[    0.519532] device: '00:07': device_add
[    0.519985] bus: 'pnp': add device 00:07
[    0.520365] PM: Adding info for pnp:00:07
[    0.520818] pnp 00:07: Plug and Play ACPI device, IDs PNP0103 (active)
[    0.521855] pnp: PnP ACPI: found 8 devices
[    0.522222] ACPI: ACPI bus type pnp unregistered
[    0.522712] bus: 'pci': add driver Intel MID DMA
[    0.523173] bus: 'pci': add driver pciback
[    0.523676] bus: 'pci': driver_probe_device: matched device 0000:00:00.0 with driver pciback
[    0.524489] bus: 'pci': really_probe: probing driver pciback with device 0000:00:00.0
[    0.525211] pciback: probe of 0000:00:00.0 rejects match -19
[    0.525792] bus: 'pci': driver_probe_device: matched device 0000:00:01.0 with driver pciback
[    0.526605] bus: 'pci': really_probe: probing driver pciback with device 0000:00:01.0
[    0.527297] pciback: probe of 0000:00:01.0 rejects match -19
[    0.527884] bus: 'pci': driver_probe_device: matched device 0000:00:01.1 with driver pciback
[    0.528694] bus: 'pci': really_probe: probing driver pciback with device 0000:00:01.1
[    0.529459] pciback: probe of 0000:00:01.1 rejects match -19
[    0.529965] bus: 'pci': driver_probe_device: matched device 0000:00:01.3 with driver pciback
[    0.530793] bus: 'pci': really_probe: probing driver pciback with device 0000:00:01.3
[    0.531570] pciback: probe of 0000:00:01.3 rejects match -19
[    0.532082] bus: 'pci': driver_probe_device: matched device 0000:00:02.0 with driver pciback
[    0.532899] bus: 'pci': really_probe: probing driver pciback with device 0000:00:02.0
[    0.533671] pciback: probe of 0000:00:02.0 rejects match -19
[    0.534167] bus: 'pci': driver_probe_device: matched device 0000:00:03.0 with driver pciback
[    0.534975] bus: 'pci': really_probe: probing driver pciback with device 0000:00:03.0
[    0.535700] pciback: probe of 0000:00:03.0 rejects match -19
[    0.536201] bus: 'pci': driver_probe_device: matched device 0000:00:04.0 with driver pciback
[    0.537020] bus: 'pci': really_probe: probing driver pciback with device 0000:00:04.0
[    0.537793] pciback: probe of 0000:00:04.0 rejects match -19
[    0.538293] bus: 'pci': driver_probe_device: matched device 0000:00:05.0 with driver pciback
[    0.539099] bus: 'pci': really_probe: probing driver pciback with device 0000:00:05.0
[    0.539792] pciback: probe of 0000:00:05.0 rejects match -19
[    0.540306] bus: 'pci': driver_probe_device: matched device 0000:00:06.0 with driver pciback
[    0.541115] bus: 'pci': really_probe: probing driver pciback with device 0000:00:06.0
[    0.541886] pciback: probe of 0000:00:06.0 rejects match -19
[    0.542461] bus: 'pci': driver_probe_device: matched device 0000:00:07.0 with driver pciback
[    0.543199] bus: 'pci': really_probe: probing driver pciback with device 0000:00:07.0
[    0.543898] pciback: probe of 0000:00:07.0 rejects match -19
[    0.544476] bus: 'pci': driver_probe_device: matched device 0000:00:08.0 with driver pciback
[    0.545214] bus: 'pci': really_probe: probing driver pciback with device 0000:00:08.0
[    0.545988] pciback: probe of 0000:00:08.0 rejects match -19
[    0.546568] bus: 'pci': driver_probe_device: matched device 0000:00:09.0 with driver pciback
[    0.547297] bus: 'pci': really_probe: probing driver pciback with device 0000:00:09.0
[    0.547993] pciback: probe of 0000:00:09.0 rejects match -19
[    0.548576] bus: 'pci': driver_probe_device: matched device 0000:00:0a.0 with driver pciback
[    0.549334] bus: 'pci': really_probe: probing driver pciback with device 0000:00:0a.0
[    0.550125] pciback: probe of 0000:00:0a.0 rejects match -19
[    0.550706] bus: 'pci': driver_probe_device: matched device 0000:00:0b.0 with driver pciback
[    0.551447] bus: 'pci': really_probe: probing driver pciback with device 0000:00:0b.0
[    0.552141] pciback: probe of 0000:00:0b.0 rejects match -19
[    0.552776] device class 'mem': registering
[    0.553175] device: 'mem': device_add
[    0.554067] PM: Adding info for No Bus:mem
[    0.554582] device: 'kmem': device_add
[    0.555225] PM: Adding info for No Bus:kmem
[    0.555660] device: 'null': device_add
[    0.556340] PM: Adding info for No Bus:null
[    0.556793] device: 'port': device_add
[    0.557438] PM: Adding info for No Bus:port
[    0.557870] device: 'zero': device_add
[    0.558530] PM: Adding info for No Bus:zero
[    0.558974] device: 'full': device_add
[    0.559538] PM: Adding info for No Bus:full
[    0.559975] device: 'random': device_add
[    0.560671] PM: Adding info for No Bus:random
[    0.561123] device: 'urandom': device_add
[    0.561784] PM: Adding info for No Bus:urandom
[    0.562233] device: 'kmsg': device_add
[    0.562852] PM: Adding info for No Bus:kmsg
[    0.563240] device: 'oldmem': device_add
[    0.563747] PM: Adding info for No Bus:oldmem
[    0.564166] device: 'tty': device_add
[    0.564792] PM: Adding info for No Bus:tty
[    0.565189] device: 'console': device_add
[    0.565702] PM: Adding info for No Bus:console
[    0.566174] device class 'firmware': registering
[    0.571316] bus: 'bcma': registered
[    0.571639] bus: 'pci': add driver bcma-pci-bridge
[    0.572162] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7]
[    0.572745] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff]
[    0.573237] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
[    0.573795] pci_bus 0000:00: resource 7 [mem 0xe0000000-0xfebfffff]
[    0.574480] NET: Registered protocol family 2
[    0.575167] TCP established hash table entries: 8192 (order: 5, 131072 bytes)
[    0.576060] TCP bind hash table entries: 8192 (order: 7, 655360 bytes)
[    0.577330] TCP: Hash tables configured (established 8192 bind 8192)
[    0.578005] TCP: reno registered
[    0.578320] UDP hash table entries: 128 (order: 2, 24576 bytes)
[    0.578959] UDP-Lite hash table entries: 128 (order: 2, 24576 bytes)
[    0.579653] NET: Registered protocol family 1
[    0.580541] RPC: Registered named UNIX socket transport module.
[    0.581066] RPC: Registered udp transport module.
[    0.581484] RPC: Registered tcp transport module.
[    0.581895] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.582553] pci 0000:00:00.0: calling quirk_natoma+0x0/0x2b
[    0.583044] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[    0.583576] pci 0000:00:00.0: calling quirk_passive_release+0x0/0x7b
[    0.584139] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[    0.584744] pci 0000:00:01.0: calling quirk_isa_dma_hangs+0x0/0x2e
[    0.585282] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[    0.585843] pci 0000:00:02.0: calling pci_fixup_video+0x0/0x97
[    0.586357] pci 0000:00:02.0: Boot video device
[    0.586846] pci 0000:00:03.0: calling quirk_e100_interrupt+0x0/0x155
[    0.587477] PCI: CLS 0 bytes, default 64
[    0.588087] Unpacking initramfs...
[    1.898134] debug: unmapping init [mem 0xffff88000e8d6000-0xffff88000ffeffff]
[    1.899714] Machine check injector initialized
[    1.900171] Registering platform device 'pcspkr'. Parent at platform
[    1.900822] device: 'pcspkr': device_add
[    1.901189] bus: 'platform': add device pcspkr
[    1.901754] PM: Adding info for platform:pcspkr
[    1.902174] microcode: no support for this CPU vendor
[    1.903512] cryptomgr_test (28) used greatest stack depth: 6200 bytes left
[    1.905347] cryptomgr_test (29) used greatest stack depth: 6024 bytes left
[    1.907183] cryptomgr_test (30) used greatest stack depth: 5672 bytes left
[    1.913956] device: 'snapshot': device_add
[    1.914529] PM: Adding info for No Bus:snapshot
[    1.915208] bus: 'clocksource': registered
[    1.915671] device: 'clocksource': device_add
[    1.916073] PM: Adding info for No Bus:clocksource
[    1.916583] device: 'clocksource0': device_add
[    1.916985] bus: 'clocksource': add device clocksource0
[    1.917544] PM: Adding info for clocksource:clocksource0
[    1.918103] bus: 'platform': add driver alarmtimer
[    1.918798] Registering platform device 'alarmtimer'. Parent at platform
[    1.919479] device: 'alarmtimer': device_add
[    1.919869] bus: 'platform': add device alarmtimer
[    1.920414] PM: Adding info for platform:alarmtimer
[    1.920907] bus: 'platform': driver_probe_device: matched device alarmtimer with driver alarmtimer
[    1.921779] bus: 'platform': really_probe: probing driver alarmtimer with device alarmtimer
[    1.922607] driver: 'alarmtimer': driver_bound: bound to device 'alarmtimer'
[    1.923235] bus: 'platform': really_probe: bound device alarmtimer to driver alarmtimer
[    1.924276] bus: 'event_source': registered
[    1.924750] device: 'breakpoint': device_add
[    1.925144] bus: 'event_source': add device breakpoint
[    1.925705] PM: Adding info for event_source:breakpoint
[    1.926246] device: 'software': device_add
[    1.926708] bus: 'event_source': add device software
[    1.927266] PM: Adding info for event_source:software
[    1.928787] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    1.930291] VFS: Disk quotas dquot_6.5.2
[    1.930707] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    1.932424] device: 'dlm-control': device_add
[    1.933056] PM: Adding info for No Bus:dlm-control
[    1.933666] device: 'dlm-monitor': device_add
[    1.934835] PM: Adding info for No Bus:dlm-monitor
[    1.935371] device: 'dlm_plock': device_add
[    1.935991] PM: Adding info for No Bus:dlm_plock
[    1.936496] DLM installed
[    1.937755] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    1.939047] device: 'ecryptfs': device_add
[    1.939998] PM: Adding info for No Bus:ecryptfs
[    1.941799] NFS: Registering the id_resolver key type
[    1.942521] Key type id_resolver registered
[    1.942899] Key type id_legacy registered
[    1.943254] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[    1.946998] NTFS driver 2.1.30 [Flags: R/W DEBUG].
[    1.947544] ROMFS MTD (C) 2007 Red Hat, Inc.
[    1.947938] QNX4 filesystem 0.2.3 registered.
[    1.948334] SGI XFS with security attributes, large block/inode numbers, no debug enabled
[    1.950121] 9p: Installing v9fs 9p2000 file system support
[    1.950695] OCFS2 1.5.0
[    1.951308] ocfs2 stack glue: unable to register sysctl
[    1.951800] ocfs2: Registered cluster interface o2cb
[    1.952237] OCFS2 DLMFS 1.5.0
[    1.952807] OCFS2 User DLM kernel interface loaded
[    1.953268] OCFS2 Node Manager 1.5.0
[    1.957873] OCFS2 DLM 1.5.0
[    1.958208] ceph: loaded (mds proto 32)
[    1.958641] msgmni has been set to 358
[    1.959797] alg: No test for cipher_null (cipher_null-generic)
[    1.960645] alg: No test for ecb(cipher_null) (ecb-cipher_null)
[    1.961826] alg: No test for compress_null (compress_null-generic)
[    1.963076] alg: No test for digest_null (digest_null-generic)
[    1.966380] cryptomgr_test (61) used greatest stack depth: 5560 bytes left
[    1.968807] alg: No test for fcrypt (fcrypt-generic)
[    1.973745] cryptomgr_test (84) used greatest stack depth: 5432 bytes left
[    1.974804] alg: No test for stdrng (krng)
[    1.975568] cryptomgr_test (87) used greatest stack depth: 5400 bytes left
[    1.976230] NET: Registered protocol family 38
[    1.976677] device class 'bsg': registering
[    1.977294] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    1.978021] io scheduler noop registered
[    1.978426] io scheduler deadline registered (default)
[    1.978915] io scheduler cfq registered
[    1.979944] crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64
[    1.980471] crc32: self tests passed, processed 225944 bytes in 134274 nsec
[    1.981244] crc32c: CRC_LE_BITS = 64
[    1.981610] crc32c: self tests passed, processed 225944 bytes in 67926 nsec
[    1.983807] bus: 'platform': add driver omap-ocp2scp
[    1.984349] bus: 'platform': add driver basic-mmio-gpio
[    1.984918] bus: 'pci': add driver bt8xxgpio
[    1.985742] bus: 'pci': add driver langwell_gpio
[    1.986253] bus: 'platform': add driver wp_gpio
[    1.986771] bus: 'pci': add driver pch_gpio
[    1.987378] bus: 'platform': add driver rdc321x-gpio
[    1.987909] bus: 'platform': add driver sch_gpio
[    1.988411] bus: 'platform': add driver vx855_gpio
[    1.989022] bus: 'pci': add driver ioapic
[    1.989511] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    1.990049] cpcihp_zt5550: ZT5550 CompactPCI Hot Plug Driver version: 0.2
[    1.990714] bus: 'pci': add driver zt5550_hc
[    1.991297] bus: 'pci': add driver shpchp
[    1.991788] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[    1.992408] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    1.993369] pci_bus 0000:00: dev 03, created physical slot 3
[    1.994098] acpiphp: Slot [3] registered
[    1.994560] pci_bus 0000:00: dev 04, created physical slot 4
[    1.995154] acpiphp: Slot [4] registered
[    1.995717] pci_bus 0000:00: dev 05, created physical slot 5
[    1.996319] acpiphp: Slot [5] registered
[    1.996746] pci_bus 0000:00: dev 06, created physical slot 6
[    1.997477] acpiphp: Slot [6] registered
[    1.997905] pci_bus 0000:00: dev 07, created physical slot 7
[    1.998537] acpiphp: Slot [7] registered
[    1.999067] pci_bus 0000:00: dev 08, created physical slot 8
[    1.999700] acpiphp: Slot [8] registered
[    2.000142] pci_bus 0000:00: dev 09, created physical slot 9
[    2.000840] acpiphp: Slot [9] registered
[    2.001267] pci_bus 0000:00: dev 0a, created physical slot 10
[    2.001904] acpiphp: Slot [10] registered
[    2.002476] pci_bus 0000:00: dev 0b, created physical slot 11
[    2.003085] acpiphp: Slot [11] registered
[    2.003552] pci_bus 0000:00: dev 0c, created physical slot 12
[    2.004151] acpiphp: Slot [12] registered
[    2.004691] pci_bus 0000:00: dev 0d, created physical slot 13
[    2.005292] acpiphp: Slot [13] registered
[    2.005762] pci_bus 0000:00: dev 0e, created physical slot 14
[    2.006498] acpiphp: Slot [14] registered
[    2.006936] pci_bus 0000:00: dev 0f, created physical slot 15
[    2.007573] acpiphp: Slot [15] registered
[    2.008110] pci_bus 0000:00: dev 10, created physical slot 16
[    2.008720] acpiphp: Slot [16] registered
[    2.009152] pci_bus 0000:00: dev 11, created physical slot 17
[    2.009885] acpiphp: Slot [17] registered
[    2.010404] pci_bus 0000:00: dev 12, created physical slot 18
[    2.010983] acpiphp: Slot [18] registered
[    2.011580] pci_bus 0000:00: dev 13, created physical slot 19
[    2.012164] acpiphp: Slot [19] registered
[    2.012588] pci_bus 0000:00: dev 14, created physical slot 20
[    2.013266] acpiphp: Slot [20] registered
[    2.013765] pci_bus 0000:00: dev 15, created physical slot 21
[    2.014419] acpiphp: Slot [21] registered
[    2.014943] pci_bus 0000:00: dev 16, created physical slot 22
[    2.015605] acpiphp: Slot [22] registered
[    2.016022] pci_bus 0000:00: dev 17, created physical slot 23
[    2.016706] acpiphp: Slot [23] registered
[    2.017121] pci_bus 0000:00: dev 18, created physical slot 24
[    2.017777] acpiphp: Slot [24] registered
[    2.018295] pci_bus 0000:00: dev 19, created physical slot 25
[    2.018985] acpiphp: Slot [25] registered
[    2.019491] pci_bus 0000:00: dev 1a, created physical slot 26
[    2.020204] acpiphp: Slot [26] registered
[    2.020631] pci_bus 0000:00: dev 1b, created physical slot 27
[    2.021213] acpiphp: Slot [27] registered
[    2.021814] pci_bus 0000:00: dev 1c, created physical slot 28
[    2.022474] acpiphp: Slot [28] registered
[    2.022889] pci_bus 0000:00: dev 1d, created physical slot 29
[    2.023651] acpiphp: Slot [29] registered
[    2.024068] pci_bus 0000:00: dev 1e, created physical slot 30
[    2.024650] acpiphp: Slot [30] registered
[    2.025183] pci_bus 0000:00: dev 1f, created physical slot 31
[    2.025845] acpiphp: Slot [31] registered
[    2.030086] acpiphp_ibm: ibm_acpiphp_init: acpi_walk_namespace failed
[    2.030745] bus: 'acpi': add driver ac
[    2.031166] bus: 'acpi': add driver button
[    2.031653] bus: 'acpi': driver_probe_device: matched device LNXPWRBN:00 with driver button
[    2.032401] bus: 'acpi': really_probe: probing driver button with device LNXPWRBN:00
[    2.033581] device: 'input0': device_add
[    2.034119] PM: Adding info for No Bus:input0
[    2.034646] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[    2.035391] ACPI: Power Button [PWRF]
[    2.035756] driver: 'LNXPWRBN:00': driver_bound: bound to device 'button'
[    2.036359] bus: 'acpi': really_probe: bound device LNXPWRBN:00 to driver button
[    2.037025] bus: 'platform': add driver virtio-mmio
[    2.037667] bus: 'pci': add driver virtio-pci
[    2.038078] bus: 'pci': driver_probe_device: matched device 0000:00:05.0 with driver virtio-pci
[    2.038924] bus: 'pci': really_probe: probing driver virtio-pci with device 0000:00:05.0
[    2.040287] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10
[    2.040833] IOAPIC[0]: Set routing entry (2-10 -> 0x3a -> IRQ 10 Mode:1 Active:0 Dest:3)
[    2.041672] virtio-pci 0000:00:05.0: enabling bus mastering
[    2.042179] virtio-pci 0000:00:05.0: setting latency timer to 64
[    2.043051] device: 'virtio0': device_add
[    2.043502] bus: 'virtio': add device virtio0
[    2.044033] PM: Adding info for virtio:virtio0
[    2.044469] driver: '0000:00:05.0': driver_bound: bound to device 'virtio-pci'
[    2.045110] bus: 'pci': really_probe: bound device 0000:00:05.0 to driver virtio-pci
[    2.045876] bus: 'pci': driver_probe_device: matched device 0000:00:06.0 with driver virtio-pci
[    2.046725] bus: 'pci': really_probe: probing driver virtio-pci with device 0000:00:06.0
[    2.048028] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
[    2.048557] IOAPIC[0]: Set routing entry (2-11 -> 0x3b -> IRQ 11 Mode:1 Active:0 Dest:3)
[    2.049359] virtio-pci 0000:00:06.0: enabling bus mastering
[    2.049888] virtio-pci 0000:00:06.0: setting latency timer to 64
[    2.050723] device: 'virtio1': device_add
[    2.051091] bus: 'virtio': add device virtio1
[    2.051580] PM: Adding info for virtio:virtio1
[    2.051988] driver: '0000:00:06.0': driver_bound: bound to device 'virtio-pci'
[    2.052631] bus: 'pci': really_probe: bound device 0000:00:06.0 to driver virtio-pci
[    2.053391] bus: 'pci': driver_probe_device: matched device 0000:00:07.0 with driver virtio-pci
[    2.054156] bus: 'pci': really_probe: probing driver virtio-pci with device 0000:00:07.0
[    2.055863] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
[    2.056406] virtio-pci 0000:00:07.0: enabling bus mastering
[    2.056918] virtio-pci 0000:00:07.0: setting latency timer to 64
[    2.057709] device: 'virtio2': device_add
[    2.058075] bus: 'virtio': add device virtio2
[    2.058561] PM: Adding info for virtio:virtio2
[    2.058968] driver: '0000:00:07.0': driver_bound: bound to device 'virtio-pci'
[    2.059683] bus: 'pci': really_probe: bound device 0000:00:07.0 to driver virtio-pci
[    2.060387] bus: 'pci': driver_probe_device: matched device 0000:00:08.0 with driver virtio-pci
[    2.061145] bus: 'pci': really_probe: probing driver virtio-pci with device 0000:00:08.0
[    2.062713] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10
[    2.063246] virtio-pci 0000:00:08.0: enabling bus mastering
[    2.063840] virtio-pci 0000:00:08.0: setting latency timer to 64
[    2.064667] device: 'virtio3': device_add
[    2.065146] bus: 'virtio': add device virtio3
[    2.065644] PM: Adding info for virtio:virtio3
[    2.066055] driver: '0000:00:08.0': driver_bound: bound to device 'virtio-pci'
[    2.066778] bus: 'pci': really_probe: bound device 0000:00:08.0 to driver virtio-pci
[    2.067549] bus: 'pci': driver_probe_device: matched device 0000:00:09.0 with driver virtio-pci
[    2.068317] bus: 'pci': really_probe: probing driver virtio-pci with device 0000:00:09.0
[    2.069262] virtio-pci 0000:00:09.0: enabling bus mastering
[    2.069860] virtio-pci 0000:00:09.0: setting latency timer to 64
[    2.070665] device: 'virtio4': device_add
[    2.071034] bus: 'virtio': add device virtio4
[    2.071647] PM: Adding info for virtio:virtio4
[    2.072065] driver: '0000:00:09.0': driver_bound: bound to device 'virtio-pci'
[    2.072710] bus: 'pci': really_probe: bound device 0000:00:09.0 to driver virtio-pci
[    2.073478] bus: 'pci': driver_probe_device: matched device 0000:00:0a.0 with driver virtio-pci
[    2.074242] bus: 'pci': really_probe: probing driver virtio-pci with device 0000:00:0a.0
[    2.075130] virtio-pci 0000:00:0a.0: enabling bus mastering
[    2.075718] virtio-pci 0000:00:0a.0: setting latency timer to 64
[    2.076425] device: 'virtio5': device_add
[    2.076794] bus: 'virtio': add device virtio5
[    2.077380] PM: Adding info for virtio:virtio5
[    2.077798] driver: '0000:00:0a.0': driver_bound: bound to device 'virtio-pci'
[    2.078518] bus: 'pci': really_probe: bound device 0000:00:0a.0 to driver virtio-pci
[    2.079226] bus: 'pci': add driver xen-platform-pci
[    2.079777] bus: 'platform': add driver reg-userspace-consumer
[    2.080480] device: 'ptmx': device_add
[    2.080877] PM: Adding info for No Bus:ptmx
[    2.081428] HDLC line discipline maxframe=4096
[    2.081833] N_HDLC line discipline registered.
[    2.082465] r3964: Philips r3964 Driver $Revision: 1.10 $
[    2.082952] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    2.083655] Registering platform device 'serial8250'. Parent at platform
[    2.084361] device: 'serial8250': device_add
[    2.084755] bus: 'platform': add device serial8250
[    2.085205] PM: Adding info for platform:serial8250

[    2.381107] device: 'ttyS0': device_add
[    2.381674] PM: Adding info for No Bus:ttyS0
[    2.382227] device: 'ttyS1': device_add
[    2.382711] PM: Adding info for No Bus:ttyS1
[    2.383200] device: 'ttyS2': device_add
[    2.383722] PM: Adding info for No Bus:ttyS2
[    2.384212] device: 'ttyS3': device_add
[    2.385109] PM: Adding info for No Bus:ttyS3
[    2.385654] bus: 'platform': add driver serial8250
[    2.386096] bus: 'platform': driver_probe_device: matched device serial8250 with driver serial8250
[    2.386966] bus: 'platform': really_probe: probing driver serial8250 with device serial8250
[    2.387720] driver: 'serial8250': driver_bound: bound to device 'serial8250'
[    2.388429] bus: 'platform': really_probe: bound device serial8250 to driver serial8250
[    2.389150] bus: 'pci': add driver serial
[    2.389737] bus: 'pci': add driver jsm
[    2.390179] bus: 'platform': add driver altera_uart
[    2.392204] bus: 'pci': add driver HSU serial
[    2.392883] MOXA Intellio family driver version 6.0k
[    2.393625] bus: 'pci': add driver moxa
[    2.394097] MOXA Smartio/Industio family driver version 2.0.5
[    2.394691] bus: 'pci': add driver mxser
[    2.395238] RocketPort device driver module, version 2.09, 12-June-2003
[    2.395987] No rocketport ports found; unloading driver
[    2.396557] SyncLink GT
[    2.396828] SyncLink GT, tty major#250
[    2.397170] bus: 'pci': add driver synclink_gt
[    2.397646] SyncLink GT no devices found
[    2.398003] SyncLink MultiPort driver $Revision: 4.38 $
[    2.398547] bus: 'pci': add driver synclinkmp
[    2.399416] device: 'ttySLM0': device_add
[    2.399828] PM: Adding info for No Bus:ttySLM0
[    2.400404] device: 'ttySLM1': device_add
[    2.401237] PM: Adding info for No Bus:ttySLM1
[    2.401662] device: 'ttySLM2': device_add
[    2.402065] PM: Adding info for No Bus:ttySLM2
[    2.402611] device: 'ttySLM3': device_add
[    2.403435] PM: Adding info for No Bus:ttySLM3
[    2.403854] device: 'ttySLM4': device_add
[    2.404256] PM: Adding info for No Bus:ttySLM4
[    2.404802] device: 'ttySLM5': device_add
[    2.405637] PM: Adding info for No Bus:ttySLM5
[    2.406056] device: 'ttySLM6': device_add
[    2.406545] PM: Adding info for No Bus:ttySLM6
[    2.407044] device: 'ttySLM7': device_add
[    2.407876] PM: Adding info for No Bus:ttySLM7
[    2.408370] device: 'ttySLM8': device_add
[    2.408787] PM: Adding info for No Bus:ttySLM8
[    2.409271] device: 'ttySLM9': device_add
[    2.410134] PM: Adding info for No Bus:ttySLM9
[    2.410635] device: 'ttySLM10': device_add
[    2.411046] PM: Adding info for No Bus:ttySLM10
[    2.411535] device: 'ttySLM11': device_add
[    2.412443] PM: Adding info for No Bus:ttySLM11
[    2.412869] device: 'ttySLM12': device_add
[    2.413285] PM: Adding info for No Bus:ttySLM12
[    2.413762] device: 'ttySLM13': device_add
[    2.414663] PM: Adding info for No Bus:ttySLM13
[    2.415089] device: 'ttySLM14': device_add
[    2.415504] PM: Adding info for No Bus:ttySLM14
[    2.415988] device: 'ttySLM15': device_add
[    2.416899] PM: Adding info for No Bus:ttySLM15
[    2.417330] device: 'ttySLM16': device_add
[    2.417741] PM: Adding info for No Bus:ttySLM16
[    2.418212] device: 'ttySLM17': device_add
[    2.419112] PM: Adding info for No Bus:ttySLM17
[    2.419546] device: 'ttySLM18': device_add
[    2.419963] PM: Adding info for No Bus:ttySLM18
[    2.420557] device: 'ttySLM19': device_add
[    2.421398] PM: Adding info for No Bus:ttySLM19
[    2.421824] device: 'ttySLM20': device_add
[    2.422233] PM: Adding info for No Bus:ttySLM20
[    2.422782] device: 'ttySLM21': device_add
[    2.423608] PM: Adding info for No Bus:ttySLM21
[    2.424037] device: 'ttySLM22': device_add
[    2.424529] PM: Adding info for No Bus:ttySLM22
[    2.424997] device: 'ttySLM23': device_add
[    2.425828] PM: Adding info for No Bus:ttySLM23
[    2.426264] device: 'ttySLM24': device_add
[    2.426759] PM: Adding info for No Bus:ttySLM24
[    2.427227] device: 'ttySLM25': device_add
[    2.428056] PM: Adding info for No Bus:ttySLM25
[    2.428564] device: 'ttySLM26': device_add
[    2.428987] PM: Adding info for No Bus:ttySLM26
[    2.429472] device: 'ttySLM27': device_add
[    2.430409] PM: Adding info for No Bus:ttySLM27
[    2.430834] device: 'ttySLM28': device_add
[    2.431246] PM: Adding info for No Bus:ttySLM28
[    2.431731] device: 'ttySLM29': device_add
[    2.432624] PM: Adding info for No Bus:ttySLM29
[    2.433054] device: 'ttySLM30': device_add
[    2.433486] PM: Adding info for No Bus:ttySLM30
[    2.433953] device: 'ttySLM31': device_add
[    2.434856] PM: Adding info for No Bus:ttySLM31
[    2.435288] device: 'ttySLM32': device_add
[    2.435700] PM: Adding info for No Bus:ttySLM32
[    2.436170] device: 'ttySLM33': device_add
[    2.437075] PM: Adding info for No Bus:ttySLM33
[    2.437508] device: 'ttySLM34': device_add
[    2.437920] PM: Adding info for No Bus:ttySLM34
[    2.438473] device: 'ttySLM35': device_add
[    2.439304] PM: Adding info for No Bus:ttySLM35
[    2.439732] device: 'ttySLM36': device_add
[    2.440179] PM: Adding info for No Bus:ttySLM36
[    2.440699] device: 'ttySLM37': device_add
[    2.441530] PM: Adding info for No Bus:ttySLM37
[    2.441957] device: 'ttySLM38': device_add
[    2.442453] PM: Adding info for No Bus:ttySLM38
[    2.442922] device: 'ttySLM39': device_add
[    2.443761] PM: Adding info for No Bus:ttySLM39
[    2.444188] device: 'ttySLM40': device_add
[    2.444685] PM: Adding info for No Bus:ttySLM40
[    2.445158] device: 'ttySLM41': device_add
[    2.445996] PM: Adding info for No Bus:ttySLM41
[    2.446512] device: 'ttySLM42': device_add
[    2.446924] PM: Adding info for No Bus:ttySLM42
[    2.447399] device: 'ttySLM43': device_add
[    2.448232] PM: Adding info for No Bus:ttySLM43
[    2.448744] device: 'ttySLM44': device_add
[    2.449156] PM: Adding info for No Bus:ttySLM44
[    2.449630] device: 'ttySLM45': device_add
[    2.450552] PM: Adding info for No Bus:ttySLM45
[    2.450979] device: 'ttySLM46': device_add
[    2.451395] PM: Adding info for No Bus:ttySLM46
[    2.451874] device: 'ttySLM47': device_add
[    2.452783] PM: Adding info for No Bus:ttySLM47
[    2.453210] device: 'ttySLM48': device_add
[    2.453626] PM: Adding info for No Bus:ttySLM48
[    2.454093] device: 'ttySLM49': device_add
[    2.454999] PM: Adding info for No Bus:ttySLM49
[    2.455430] device: 'ttySLM50': device_add
[    2.455840] PM: Adding info for No Bus:ttySLM50
[    2.456381] device: 'ttySLM51': device_add
[    2.457211] PM: Adding info for No Bus:ttySLM51
[    2.457642] device: 'ttySLM52': device_add
[    2.458050] PM: Adding info for No Bus:ttySLM52
[    2.458603] device: 'ttySLM53': device_add
[    2.459436] PM: Adding info for No Bus:ttySLM53
[    2.459864] device: 'ttySLM54': device_add
[    2.460343] PM: Adding info for No Bus:ttySLM54
[    2.460822] device: 'ttySLM55': device_add
[    2.461655] PM: Adding info for No Bus:ttySLM55
[    2.462084] device: 'ttySLM56': device_add
[    2.462578] PM: Adding info for No Bus:ttySLM56
[    2.463046] device: 'ttySLM57': device_add
[    2.463880] PM: Adding info for No Bus:ttySLM57
[    2.464390] device: 'ttySLM58': device_add
[    2.464805] PM: Adding info for No Bus:ttySLM58
[    2.465274] device: 'ttySLM59': device_add
[    2.466106] PM: Adding info for No Bus:ttySLM59
[    2.466613] device: 'ttySLM60': device_add
[    2.467026] PM: Adding info for No Bus:ttySLM60
[    2.467500] device: 'ttySLM61': device_add
[    2.468406] PM: Adding info for No Bus:ttySLM61
[    2.468837] device: 'ttySLM62': device_add
[    2.469252] PM: Adding info for No Bus:ttySLM62
[    2.469724] device: 'ttySLM63': device_add
[    2.470650] PM: Adding info for No Bus:ttySLM63
[    2.471076] device: 'ttySLM64': device_add
[    2.471493] PM: Adding info for No Bus:ttySLM64
[    2.471967] device: 'ttySLM65': device_add
[    2.472887] PM: Adding info for No Bus:ttySLM65
[    2.473319] device: 'ttySLM66': device_add
[    2.473730] PM: Adding info for No Bus:ttySLM66
[    2.474200] device: 'ttySLM67': device_add
[    2.475109] PM: Adding info for No Bus:ttySLM67
[    2.475542] device: 'ttySLM68': device_add
[    2.475953] PM: Adding info for No Bus:ttySLM68
[    2.476505] device: 'ttySLM69': device_add
[    2.477340] PM: Adding info for No Bus:ttySLM69
[    2.477766] device: 'ttySLM70': device_add
[    2.478175] PM: Adding info for No Bus:ttySLM70
[    2.478722] device: 'ttySLM71': device_add
[    2.479557] PM: Adding info for No Bus:ttySLM71
[    2.479984] device: 'ttySLM72': device_add
[    2.480511] PM: Adding info for No Bus:ttySLM72
[    2.480989] device: 'ttySLM73': device_add
[    2.481832] PM: Adding info for No Bus:ttySLM73
[    2.482257] device: 'ttySLM74': device_add
[    2.482746] PM: Adding info for No Bus:ttySLM74
[    2.483221] device: 'ttySLM75': device_add
[    2.484064] PM: Adding info for No Bus:ttySLM75
[    2.484570] device: 'ttySLM76': device_add
[    2.484981] PM: Adding info for No Bus:ttySLM76
[    2.485460] device: 'ttySLM77': device_add
[    2.486371] PM: Adding info for No Bus:ttySLM77
[    2.486800] device: 'ttySLM78': device_add
[    2.487213] PM: Adding info for No Bus:ttySLM78
[    2.487695] device: 'ttySLM79': device_add
[    2.488614] PM: Adding info for No Bus:ttySLM79
[    2.489040] device: 'ttySLM80': device_add
[    2.489466] PM: Adding info for No Bus:ttySLM80
[    2.489941] device: 'ttySLM81': device_add
[    2.490888] PM: Adding info for No Bus:ttySLM81
[    2.491323] device: 'ttySLM82': device_add
[    2.491734] PM: Adding info for No Bus:ttySLM82
[    2.492209] device: 'ttySLM83': device_add
[    2.493130] PM: Adding info for No Bus:ttySLM83
[    2.493559] device: 'ttySLM84': device_add
[    2.493970] PM: Adding info for No Bus:ttySLM84
[    2.494532] device: 'ttySLM85': device_add
[    2.495378] PM: Adding info for No Bus:ttySLM85
[    2.495804] device: 'ttySLM86': device_add
[    2.496214] PM: Adding info for No Bus:ttySLM86
[    2.496767] device: 'ttySLM87': device_add
[    2.497614] PM: Adding info for No Bus:ttySLM87
[    2.498040] device: 'ttySLM88': device_add
[    2.498534] PM: Adding info for No Bus:ttySLM88
[    2.499006] device: 'ttySLM89': device_add
[    2.499854] PM: Adding info for No Bus:ttySLM89
[    2.500382] device: 'ttySLM90': device_add
[    2.500828] PM: Adding info for No Bus:ttySLM90
[    2.501311] device: 'ttySLM91': device_add
[    2.502171] PM: Adding info for No Bus:ttySLM91
[    2.502679] device: 'ttySLM92': device_add
[    2.503090] PM: Adding info for No Bus:ttySLM92
[    2.503572] device: 'ttySLM93': device_add
[    2.504487] PM: Adding info for No Bus:ttySLM93
[    2.504913] device: 'ttySLM94': device_add
[    2.505331] PM: Adding info for No Bus:ttySLM94
[    2.505808] device: 'ttySLM95': device_add
[    2.506729] PM: Adding info for No Bus:ttySLM95
[    2.507157] device: 'ttySLM96': device_add
[    2.507574] PM: Adding info for No Bus:ttySLM96
[    2.508049] device: 'ttySLM97': device_add
[    2.508977] PM: Adding info for No Bus:ttySLM97
[    2.509406] device: 'ttySLM98': device_add
[    2.509817] PM: Adding info for No Bus:ttySLM98
[    2.510394] device: 'ttySLM99': device_add
[    2.511245] PM: Adding info for No Bus:ttySLM99
[    2.511689] device: 'ttySLM100': device_add
[    2.512108] PM: Adding info for No Bus:ttySLM100
[    2.512671] device: 'ttySLM101': device_add
[    2.513532] PM: Adding info for No Bus:ttySLM101
[    2.513967] device: 'ttySLM102': device_add
[    2.514464] PM: Adding info for No Bus:ttySLM102
[    2.514952] device: 'ttySLM103': device_add
[    2.515819] PM: Adding info for No Bus:ttySLM103
[    2.516250] device: 'ttySLM104': device_add
[    2.516755] PM: Adding info for No Bus:ttySLM104
[    2.517234] device: 'ttySLM105': device_add
[    2.518099] PM: Adding info for No Bus:ttySLM105
[    2.518614] device: 'ttySLM106': device_add
[    2.519033] PM: Adding info for No Bus:ttySLM106
[    2.519521] device: 'ttySLM107': device_add
[    2.520438] PM: Adding info for No Bus:ttySLM107
[    2.520872] device: 'ttySLM108': device_add
[    2.521294] PM: Adding info for No Bus:ttySLM108
[    2.521778] device: 'ttySLM109': device_add
[    2.522706] PM: Adding info for No Bus:ttySLM109
[    2.523141] device: 'ttySLM110': device_add
[    2.523564] PM: Adding info for No Bus:ttySLM110
[    2.524045] device: 'ttySLM111': device_add
[    2.524983] PM: Adding info for No Bus:ttySLM111
[    2.525421] device: 'ttySLM112': device_add
[    2.525838] PM: Adding info for No Bus:ttySLM112
[    2.526388] device: 'ttySLM113': device_add
[    2.527245] PM: Adding info for No Bus:ttySLM113
[    2.527683] device: 'ttySLM114': device_add
[    2.528098] PM: Adding info for No Bus:ttySLM114
[    2.528661] device: 'ttySLM115': device_add
[    2.529515] PM: Adding info for No Bus:ttySLM115
[    2.529947] device: 'ttySLM116': device_add
[    2.530471] PM: Adding info for No Bus:ttySLM116
[    2.530956] device: 'ttySLM117': device_add
[    2.531816] PM: Adding info for No Bus:ttySLM117
[    2.532246] device: 'ttySLM118': device_add
[    2.532747] PM: Adding info for No Bus:ttySLM118
[    2.533238] device: 'ttySLM119': device_add
[    2.534098] PM: Adding info for No Bus:ttySLM119
[    2.534609] device: 'ttySLM120': device_add
[    2.535025] PM: Adding info for No Bus:ttySLM120
[    2.535513] device: 'ttySLM121': device_add
[    2.536440] PM: Adding info for No Bus:ttySLM121
[    2.536881] device: 'ttySLM122': device_add
[    2.537306] PM: Adding info for No Bus:ttySLM122
[    2.537787] device: 'ttySLM123': device_add
[    2.538723] PM: Adding info for No Bus:ttySLM123
[    2.539156] device: 'ttySLM124': device_add
[    2.539582] PM: Adding info for No Bus:ttySLM124
[    2.540095] device: 'ttySLM125': device_add
[    2.540985] PM: Adding info for No Bus:ttySLM125
[    2.541566] device: 'ttySLM126': device_add
[    2.541987] PM: Adding info for No Bus:ttySLM126
[    2.542566] device: 'ttySLM127': device_add
[    2.543445] PM: Adding info for No Bus:ttySLM127
[    2.543873] SyncLink MultiPort driver $Revision: 4.38 $, tty major#249
[    2.544527] SyncLink serial driver $Revision: 4.38 $
[    2.544967] bus: 'pci': add driver synclink
[    2.545685] device: 'ttySL0': device_add
[    2.546236] PM: Adding info for No Bus:ttySL0
[    2.546784] device: 'ttySL1': device_add
[    2.547489] PM: Adding info for No Bus:ttySL1
[    2.548059] device: 'ttySL2': device_add
[    2.548698] PM: Adding info for No Bus:ttySL2
[    2.549171] device: 'ttySL3': device_add
[    2.549870] PM: Adding info for No Bus:ttySL3
[    2.550390] device: 'ttySL4': device_add
[    2.550934] PM: Adding info for No Bus:ttySL4
[    2.551549] device: 'ttySL5': device_add
[    2.552256] PM: Adding info for No Bus:ttySL5
[    2.552745] device: 'ttySL6': device_add
[    2.553301] PM: Adding info for No Bus:ttySL6
[    2.553764] device: 'ttySL7': device_add
[    2.554542] PM: Adding info for No Bus:ttySL7
[    2.555106] device: 'ttySL8': device_add
[    2.555675] PM: Adding info for No Bus:ttySL8
[    2.556148] device: 'ttySL9': device_add
[    2.556922] PM: Adding info for No Bus:ttySL9
[    2.557338] device: 'ttySL10': device_add
[    2.557886] PM: Adding info for No Bus:ttySL10
[    2.558587] device: 'ttySL11': device_add
[    2.559306] PM: Adding info for No Bus:ttySL11
[    2.559723] device: 'ttySL12': device_add
[    2.560360] PM: Adding info for No Bus:ttySL12
[    2.560834] device: 'ttySL13': device_add
[    2.561541] PM: Adding info for No Bus:ttySL13
[    2.562116] device: 'ttySL14': device_add
[    2.562770] PM: Adding info for No Bus:ttySL14
[    2.563251] device: 'ttySL15': device_add
[    2.563959] PM: Adding info for No Bus:ttySL15
[    2.564457] device: 'ttySL16': device_add
[    2.565009] PM: Adding info for No Bus:ttySL16
[    2.565630] device: 'ttySL17': device_add
[    2.566422] PM: Adding info for No Bus:ttySL17
[    2.566844] device: 'ttySL18': device_add
[    2.567413] PM: Adding info for No Bus:ttySL18
[    2.567885] device: 'ttySL19': device_add
[    2.568662] PM: Adding info for No Bus:ttySL19
[    2.569230] device: 'ttySL20': device_add
[    2.569805] PM: Adding info for No Bus:ttySL20
[    2.570380] device: 'ttySL21': device_add
[    2.571085] PM: Adding info for No Bus:ttySL21
[    2.571505] device: 'ttySL22': device_add
[    2.572053] PM: Adding info for No Bus:ttySL22
[    2.572749] device: 'ttySL23': device_add
[    2.573467] PM: Adding info for No Bus:ttySL23
[    2.573882] device: 'ttySL24': device_add
[    2.574520] PM: Adding info for No Bus:ttySL24
[    2.574994] device: 'ttySL25': device_add
[    2.575707] PM: Adding info for No Bus:ttySL25
[    2.576347] device: 'ttySL26': device_add
[    2.576929] PM: Adding info for No Bus:ttySL26
[    2.577413] device: 'ttySL27': device_add
[    2.578114] PM: Adding info for No Bus:ttySL27
[    2.578611] device: 'ttySL28': device_add
[    2.579163] PM: Adding info for No Bus:ttySL28
[    2.579789] device: 'ttySL29': device_add
[    2.580578] PM: Adding info for No Bus:ttySL29
[    2.580996] device: 'ttySL30': device_add
[    2.581568] PM: Adding info for No Bus:ttySL30
[    2.582039] device: 'ttySL31': device_add
[    2.582821] PM: Adding info for No Bus:ttySL31
[    2.583400] device: 'ttySL32': device_add
[    2.583968] PM: Adding info for No Bus:ttySL32
[    2.584524] device: 'ttySL33': device_add
[    2.585225] PM: Adding info for No Bus:ttySL33
[    2.585647] device: 'ttySL34': device_add
[    2.586200] PM: Adding info for No Bus:ttySL34
[    2.586890] device: 'ttySL35': device_add
[    2.587607] PM: Adding info for No Bus:ttySL35
[    2.588024] device: 'ttySL36': device_add
[    2.588678] PM: Adding info for No Bus:ttySL36
[    2.589150] device: 'ttySL37': device_add
[    2.589858] PM: Adding info for No Bus:ttySL37
[    2.590531] device: 'ttySL38': device_add
[    2.591106] PM: Adding info for No Bus:ttySL38
[    2.591592] device: 'ttySL39': device_add
[    2.592372] PM: Adding info for No Bus:ttySL39
[    2.592796] device: 'ttySL40': device_add
[    2.593358] PM: Adding info for No Bus:ttySL40
[    2.593975] device: 'ttySL41': device_add
[    2.594773] PM: Adding info for No Bus:ttySL41
[    2.595189] device: 'ttySL42': device_add
[    2.595761] PM: Adding info for No Bus:ttySL42
[    2.596233] device: 'ttySL43': device_add
[    2.597023] PM: Adding info for No Bus:ttySL43
[    2.597600] device: 'ttySL44': device_add
[    2.598173] PM: Adding info for No Bus:ttySL44
[    2.598728] device: 'ttySL45': device_add
[    2.599439] PM: Adding info for No Bus:ttySL45
[    2.599860] device: 'ttySL46': device_add
[    2.600517] PM: Adding info for No Bus:ttySL46
[    2.601145] device: 'ttySL47': device_add
[    2.601869] PM: Adding info for No Bus:ttySL47
[    2.602367] device: 'ttySL48': device_add
[    2.602936] PM: Adding info for No Bus:ttySL48
[    2.603412] device: 'ttySL49': device_add
[    2.604115] PM: Adding info for No Bus:ttySL49
[    2.604766] device: 'ttySL50': device_add
[    2.605345] PM: Adding info for No Bus:ttySL50
[    2.605824] device: 'ttySL51': device_add
[    2.606602] PM: Adding info for No Bus:ttySL51
[    2.607022] device: 'ttySL52': device_add
[    2.607585] PM: Adding info for No Bus:ttySL52
[    2.608201] device: 'ttySL53': device_add
[    2.608995] PM: Adding info for No Bus:ttySL53
[    2.609418] device: 'ttySL54': device_add
[    2.609989] PM: Adding info for No Bus:ttySL54
[    2.610556] device: 'ttySL55': device_add
[    2.611259] PM: Adding info for No Bus:ttySL55
[    2.611832] device: 'ttySL56': device_add
[    2.612492] PM: Adding info for No Bus:ttySL56
[    2.612968] device: 'ttySL57': device_add
[    2.613682] PM: Adding info for No Bus:ttySL57
[    2.614103] device: 'ttySL58': device_add
[    2.614743] PM: Adding info for No Bus:ttySL58
[    2.615365] device: 'ttySL59': device_add
[    2.616081] PM: Adding info for No Bus:ttySL59
[    2.616585] device: 'ttySL60': device_add
[    2.617155] PM: Adding info for No Bus:ttySL60
[    2.617629] device: 'ttySL61': device_add
[    2.618417] PM: Adding info for No Bus:ttySL61
[    2.618986] device: 'ttySL62': device_add
[    2.619570] PM: Adding info for No Bus:ttySL62
[    2.620066] device: 'ttySL63': device_add
[    2.620849] PM: Adding info for No Bus:ttySL63
[    2.621271] device: 'ttySL64': device_add
[    2.621829] PM: Adding info for No Bus:ttySL64
[    2.622526] device: 'ttySL65': device_add
[    2.623242] PM: Adding info for No Bus:ttySL65
[    2.623663] device: 'ttySL66': device_add
[    2.624233] PM: Adding info for No Bus:ttySL66
[    2.624785] device: 'ttySL67': device_add
[    2.625495] PM: Adding info for No Bus:ttySL67
[    2.626065] device: 'ttySL68': device_add
[    2.626727] PM: Adding info for No Bus:ttySL68
[    2.627205] device: 'ttySL69': device_add
[    2.627915] PM: Adding info for No Bus:ttySL69
[    2.628412] device: 'ttySL70': device_add
[    2.628973] PM: Adding info for No Bus:ttySL70
[    2.629595] device: 'ttySL71': device_add
[    2.630403] PM: Adding info for No Bus:ttySL71
[    2.630818] device: 'ttySL72': device_add
[    2.631393] PM: Adding info for No Bus:ttySL72
[    2.631862] device: 'ttySL73': device_add
[    2.632640] PM: Adding info for No Bus:ttySL73
[    2.633214] device: 'ttySL74': device_add
[    2.633799] PM: Adding info for No Bus:ttySL74
[    2.634349] device: 'ttySL75': device_add
[    2.635065] PM: Adding info for No Bus:ttySL75
[    2.635488] device: 'ttySL76': device_add
[    2.636047] PM: Adding info for No Bus:ttySL76
[    2.636749] device: 'ttySL77': device_add
[    2.637474] PM: Adding info for No Bus:ttySL77
[    2.637893] device: 'ttySL78': device_add
[    2.638544] PM: Adding info for No Bus:ttySL78
[    2.639016] device: 'ttySL79': device_add
[    2.639732] PM: Adding info for No Bus:ttySL79
[    2.640395] device: 'ttySL80': device_add
[    2.640977] PM: Adding info for No Bus:ttySL80
[    2.641461] device: 'ttySL81': device_add
[    2.642167] PM: Adding info for No Bus:ttySL81
[    2.642666] device: 'ttySL82': device_add
[    2.643228] PM: Adding info for No Bus:ttySL82
[    2.643859] device: 'ttySL83': device_add
[    2.644651] PM: Adding info for No Bus:ttySL83
[    2.645071] device: 'ttySL84': device_add
[    2.645654] PM: Adding info for No Bus:ttySL84
[    2.646125] device: 'ttySL85': device_add
[    2.646913] PM: Adding info for No Bus:ttySL85
[    2.647489] device: 'ttySL86': device_add
[    2.648067] PM: Adding info for No Bus:ttySL86
[    2.648628] device: 'ttySL87': device_add
[    2.649340] PM: Adding info for No Bus:ttySL87
[    2.649757] device: 'ttySL88': device_add
[    2.650418] PM: Adding info for No Bus:ttySL88
[    2.651038] device: 'ttySL89': device_add
[    2.651763] PM: Adding info for No Bus:ttySL89
[    2.652181] device: 'ttySL90': device_add
[    2.652837] PM: Adding info for No Bus:ttySL90
[    2.653309] device: 'ttySL91': device_add
[    2.654013] PM: Adding info for No Bus:ttySL91
[    2.654666] device: 'ttySL92': device_add
[    2.655248] PM: Adding info for No Bus:ttySL92
[    2.655733] device: 'ttySL93': device_add
[    2.656512] PM: Adding info for No Bus:ttySL93
[    2.656926] device: 'ttySL94': device_add
[    2.657493] PM: Adding info for No Bus:ttySL94
[    2.658111] device: 'ttySL95': device_add
[    2.658908] PM: Adding info for No Bus:ttySL95
[    2.659327] device: 'ttySL96': device_add
[    2.659901] PM: Adding info for No Bus:ttySL96
[    2.660472] device: 'ttySL97': device_add
[    2.661185] PM: Adding info for No Bus:ttySL97
[    2.661761] device: 'ttySL98': device_add
[    2.662439] PM: Adding info for No Bus:ttySL98
[    2.663062] device: 'ttySL99': device_add
[    2.663796] PM: Adding info for No Bus:ttySL99
[    2.664214] device: 'ttySL100': device_add
[    2.664894] PM: Adding info for No Bus:ttySL100
[    2.665380] device: 'ttySL101': device_add
[    2.666093] PM: Adding info for No Bus:ttySL101
[    2.666741] device: 'ttySL102': device_add
[    2.667345] PM: Adding info for No Bus:ttySL102
[    2.667834] device: 'ttySL103': device_add
[    2.668623] PM: Adding info for No Bus:ttySL103
[    2.669050] device: 'ttySL104': device_add
[    2.669629] PM: Adding info for No Bus:ttySL104
[    2.670352] device: 'ttySL105': device_add
[    2.671085] PM: Adding info for No Bus:ttySL105
[    2.671516] device: 'ttySL106': device_add
[    2.672101] PM: Adding info for No Bus:ttySL106
[    2.672657] device: 'ttySL107': device_add
[    2.673378] PM: Adding info for No Bus:ttySL107
[    2.673958] device: 'ttySL108': device_add
[    2.674631] PM: Adding info for No Bus:ttySL108
[    2.675119] device: 'ttySL109': device_add
[    2.675840] PM: Adding info for No Bus:ttySL109
[    2.676338] device: 'ttySL110': device_add
[    2.676920] PM: Adding info for No Bus:ttySL110
[    2.677552] device: 'ttySL111': device_add
[    2.678356] PM: Adding info for No Bus:ttySL111
[    2.678785] device: 'ttySL112': device_add
[    2.679378] PM: Adding info for No Bus:ttySL112
[    2.679859] device: 'ttySL113': device_add
[    2.680675] PM: Adding info for No Bus:ttySL113
[    2.681257] device: 'ttySL114': device_add
[    2.681851] PM: Adding info for No Bus:ttySL114
[    2.682427] device: 'ttySL115': device_add
[    2.683145] PM: Adding info for No Bus:ttySL115
[    2.683582] device: 'ttySL116': device_add
[    2.684159] PM: Adding info for No Bus:ttySL116
[    2.684869] device: 'ttySL117': device_add
[    2.685603] PM: Adding info for No Bus:ttySL117
[    2.686030] device: 'ttySL118': device_add
[    2.686708] PM: Adding info for No Bus:ttySL118
[    2.687187] device: 'ttySL119': device_add
[    2.687909] PM: Adding info for No Bus:ttySL119
[    2.688579] device: 'ttySL120': device_add
[    2.689171] PM: Adding info for No Bus:ttySL120
[    2.689661] device: 'ttySL121': device_add
[    2.690477] PM: Adding info for No Bus:ttySL121
[    2.690902] device: 'ttySL122': device_add
[    2.691481] PM: Adding info for No Bus:ttySL122
[    2.692111] device: 'ttySL123': device_add
[    2.692929] PM: Adding info for No Bus:ttySL123
[    2.693364] device: 'ttySL124': device_add
[    2.693956] PM: Adding info for No Bus:ttySL124
[    2.694520] device: 'ttySL125': device_add
[    2.695234] PM: Adding info for No Bus:ttySL125
[    2.695821] device: 'ttySL126': device_add
[    2.696495] PM: Adding info for No Bus:ttySL126
[    2.696983] device: 'ttySL127': device_add
[    2.697708] PM: Adding info for No Bus:ttySL127
[    2.698128] SyncLink serial driver $Revision: 4.38 $, tty major#248
[    2.698801] device: 'ttyprintk': device_add
[    2.699392] PM: Adding info for No Bus:ttyprintk
[    2.699875] device class 'virtio-ports': registering
[    2.700943] bus: 'virtio': add driver virtio_console
[    2.701418] Applicom driver: $Id: ac.c,v 1.30 2000/03/22 16:03:57 dwmw2 Exp $
[    2.702056] ac.o: No PCI boards found.
[    2.702476] ac.o: For an ISA board you must supply memory and irq parameters.
[    2.703116] device: 'hpet': device_add
[    2.703697] PM: Adding info for No Bus:hpet
[    2.704149] bus: 'acpi': add driver hpet
[    2.704612] bus: 'acpi': driver_probe_device: matched device PNP0103:00 with driver hpet
[    2.705328] bus: 'acpi': really_probe: probing driver hpet with device PNP0103:00
[    2.706109] hpet: probe of PNP0103:00 rejects match -19
[    2.706727] device: 'nvram': device_add
[    2.707431] PM: Adding info for No Bus:nvram
[    2.707841] Non-volatile memory driver v1.3
[    2.708232] bus: 'virtio': add driver virtio_rng
[    2.708905] Linux agpgart interface v0.103
[    2.709287] bus: 'pci': add driver agpgart-sis
[    2.709715] Hangcheck: starting hangcheck timer 0.9.1 (tick is 180 seconds, margin is 60 seconds).
[    2.710596] Hangcheck: Using getrawmonotonic().
[    2.711013] bus: 'pnp': add driver tpm_tis
[    2.711580] bus: 'platform': add driver tpm_atmel
[    2.712083] bus: 'platform': remove driver tpm_atmel
[    2.712615] driver: 'tpm_atmel': driver_release
[    2.713019] bus: 'pnp': add driver tpm_inf_pnp
[    2.713811] device: 'loop-control': device_add
[    2.714338] PM: Adding info for No Bus:loop-control
[    2.715356] device: '7:0': device_add
[    2.715802] PM: Adding info for No Bus:7:0
[    2.715906] bus: 'platform': add driver floppy
[    2.716068] Floppy drive(s): fd0 is 1.44M
[    2.717247] device: 'loop0': device_add
[    2.717869] PM: Adding info for No Bus:loop0
[    2.718897] device: '7:1': device_add
[    2.719433] PM: Adding info for No Bus:7:1
[    2.720227] device: 'loop1': device_add
[    2.721192] PM: Adding info for No Bus:loop1
[    2.722359] device: '7:2': device_add
[    2.722723] PM: Adding info for No Bus:7:2
[    2.723428] device: 'loop2': device_add
[    2.724018] PM: Adding info for No Bus:loop2
[    2.725165] device: '7:3': device_add
[    2.725693] PM: Adding info for No Bus:7:3
[    2.726543] device: 'loop3': device_add
[    2.727439] PM: Adding info for No Bus:loop3
[    2.728459] device: '7:4': device_add
[    2.728993] PM: Adding info for No Bus:7:4
[    2.729715] device: 'loop4': device_add
[    2.730379] PM: Adding info for No Bus:loop4
[    2.731164] FDC 0 is a S82078B
[    2.731512] device: '7:5': device_add
[    2.731995] PM: Adding info for No Bus:7:5
[    2.732047] Registering platform device 'floppy.0'. Parent at platform
[    2.732052] device: 'floppy.0': device_add
[    2.732066] bus: 'platform': add device floppy.0
[    2.732279] PM: Adding info for platform:floppy.0
[    2.732363] bus: 'platform': driver_probe_device: matched device floppy.0 with driver floppy
[    2.732364] bus: 'platform': really_probe: probing driver floppy with device floppy.0
[    2.732374] driver: 'floppy.0': driver_bound: bound to device 'floppy'
[    2.732377] bus: 'platform': really_probe: bound device floppy.0 to driver floppy
[    2.732564] device: '2:0': device_add
[    2.732599] PM: Adding info for No Bus:2:0
[    2.733019] device: 'fd0': device_add
[    2.738464] device: 'loop5': device_add
[    2.739602] PM: Adding info for No Bus:loop5
[    2.739605] PM: Adding info for No Bus:fd0
[    2.741191] device: '7:6': device_add
[    2.741560] PM: Adding info for No Bus:7:6
[    2.742390] device: 'loop6': device_add
[    2.743323] PM: Adding info for No Bus:loop6
[    2.744521] device: '7:7': device_add
[    2.745052] PM: Adding info for No Bus:7:7
[    2.745778] device: 'loop7': device_add
[    2.746456] PM: Adding info for No Bus:loop7
[    2.747125] loop: module loaded
[    2.747422] Compaq SMART2 Driver (v 2.6.0)
[    2.747790] bus: 'pci': add driver cpqarray
[    2.748519] bus: 'pci': remove driver cpqarray
[    2.748976] driver: 'cpqarray': driver_release
[    2.749417] device class 'pktcdvd': registering
[    2.750644] device: 'pktcdvd': device_add
[    2.751413] PM: Adding info for No Bus:pktcdvd
[    2.751827] device class 'osdblk': registering
[    2.752672] bus: 'virtio': add driver virtio_blk
[    2.753097] bus: 'virtio': driver_probe_device: matched device virtio0 with driver virtio_blk
[    2.753850] bus: 'virtio': really_probe: probing driver virtio_blk with device virtio0
[    2.754891] virtio-pci 0000:00:05.0: irq 40 for MSI/MSI-X
[    2.755419] virtio-pci 0000:00:05.0: irq 41 for MSI/MSI-X
[    2.769656] device: '252:0': device_add
[    2.770054] PM: Adding info for No Bus:252:0
[    2.770500] device: 'vda': device_add
[    2.771537] PM: Adding info for No Bus:vda
[    2.772864]  vda: unknown partition table
[    2.774037] driver: 'virtio0': driver_bound: bound to device 'virtio_blk'
[    2.774654] bus: 'virtio': really_probe: bound device virtio0 to driver virtio_blk
[    2.775404] bus: 'virtio': driver_probe_device: matched device virtio1 with driver virtio_blk
[    2.776157] bus: 'virtio': really_probe: probing driver virtio_blk with device virtio1
[    2.777411] virtio-pci 0000:00:06.0: irq 42 for MSI/MSI-X
[    2.777934] virtio-pci 0000:00:06.0: irq 43 for MSI/MSI-X
[    2.792211] device: '252:16': device_add
[    2.792908] PM: Adding info for No Bus:252:16
[    2.793345] device: 'vdb': device_add
[    2.794344] PM: Adding info for No Bus:vdb
[    2.795361]  vdb: unknown partition table
[    2.796434] driver: 'virtio1': driver_bound: bound to device 'virtio_blk'
[    2.797043] bus: 'virtio': really_probe: bound device virtio1 to driver virtio_blk
[    2.797729] bus: 'virtio': driver_probe_device: matched device virtio2 with driver virtio_blk
[    2.798555] bus: 'virtio': really_probe: probing driver virtio_blk with device virtio2
[    2.799737] virtio-pci 0000:00:07.0: irq 44 for MSI/MSI-X
[    2.800499] virtio-pci 0000:00:07.0: irq 45 for MSI/MSI-X
[    2.815149] device: '252:32': device_add
[    2.815812] PM: Adding info for No Bus:252:32
[    2.816614] device: 'vdc': device_add
[    2.817206] PM: Adding info for No Bus:vdc
[    2.818313]  vdc: unknown partition table
[    2.819953] driver: 'virtio2': driver_bound: bound to device 'virtio_blk'
[    2.820598] bus: 'virtio': really_probe: bound device virtio2 to driver virtio_blk
[    2.821343] bus: 'virtio': driver_probe_device: matched device virtio3 with driver virtio_blk
[    2.822104] bus: 'virtio': really_probe: probing driver virtio_blk with device virtio3
[    2.823140] virtio-pci 0000:00:08.0: irq 46 for MSI/MSI-X
[    2.823859] virtio-pci 0000:00:08.0: irq 47 for MSI/MSI-X
[    2.838129] device: '252:48': device_add
[    2.838592] PM: Adding info for No Bus:252:48
[    2.839373] device: 'vdd': device_add
[    2.840588] PM: Adding info for No Bus:vdd
[    2.841264]  vdd: unknown partition table
[    2.842224] driver: 'virtio3': driver_bound: bound to device 'virtio_blk'
[    2.842909] bus: 'virtio': really_probe: bound device virtio3 to driver virtio_blk
[    2.843583] bus: 'virtio': driver_probe_device: matched device virtio4 with driver virtio_blk
[    2.844409] bus: 'virtio': really_probe: probing driver virtio_blk with device virtio4
[    2.845482] virtio-pci 0000:00:09.0: irq 48 for MSI/MSI-X
[    2.846114] virtio-pci 0000:00:09.0: irq 49 for MSI/MSI-X
[    2.859818] device: '252:64': device_add
[    2.860229] PM: Adding info for No Bus:252:64
[    2.861381] device: 'vde': device_add
[    2.861973] PM: Adding info for No Bus:vde
[    2.863236]  vde: unknown partition table
[    2.864327] driver: 'virtio4': driver_bound: bound to device 'virtio_blk'
[    2.864949] bus: 'virtio': really_probe: bound device virtio4 to driver virtio_blk
[    2.865642] bus: 'virtio': driver_probe_device: matched device virtio5 with driver virtio_blk
[    2.866443] bus: 'virtio': really_probe: probing driver virtio_blk with device virtio5
[    2.868058] virtio-pci 0000:00:0a.0: irq 50 for MSI/MSI-X
[    2.868736] virtio-pci 0000:00:0a.0: irq 51 for MSI/MSI-X
[    2.882756] device: '252:80': device_add
[    2.883552] PM: Adding info for No Bus:252:80
[    2.884361] device: 'vdf': device_add
[    2.885498] PM: Adding info for No Bus:vdf
[    2.886354]  vdf: unknown partition table
[    2.887471] driver: 'virtio5': driver_bound: bound to device 'virtio_blk'
[    2.888068] bus: 'virtio': really_probe: bound device virtio5 to driver virtio_blk
[    2.888959] bus: 'pci': add driver pciPTI
[    2.889813] lkdtm: No crash points registered, enable through debugfs
[    2.890412] device class 'enclosure': registering
[    2.891070] device class 'iLO': registering
[    2.891584] bus: 'pci': add driver hpilo
[    2.892205] bus: 'pci': add driver cb710
[    2.892650] bus: 'pci': add driver pch_phub
[    2.893099] bus: 'platform': add driver kim
[    2.893782] bus: 'platform': add driver pasic3
[    2.894249] bus: 'platform': remove driver pasic3
[    2.894719] driver: 'pasic3': driver_release
[    2.895101] bus: 'pci': add driver lpc_sch
[    2.895626] bus: 'pci': add driver lpc_ich
[    2.896228] bus: 'pci': add driver RDC321x Southbridge
[    2.896768] bus: 'pci': add driver vx855
[    2.897193] bus: 'usb': add driver pn533
[    2.897849] usbcore: registered new interface driver pn533
[    2.898340] Uniform Multi-Platform E-IDE driver
[    2.898807] bus: 'ide': registered
[    2.899115] device class 'ide_port': registering
[    2.899694] piix 0000:00:01.1: IDE controller (0x8086:0x7010 rev 0x00)
[    2.901150] piix 0000:00:01.1: not 100% native mode: will probe irqs later
[    2.901860] pci 0000:00:01.1: enabling bus mastering
[    2.902312] pci 0000:00:01.1: setting latency timer to 64
[    2.902798]     ide0: BM-DMA at 0xc1c0-0xc1c7
[    2.903201]     ide1: BM-DMA at 0xc1c8-0xc1cf
[    2.903672] Probing IDE interface ide0...
[    3.510289] device: 'ide0': device_add
[    3.511076] PM: Adding info for No Bus:ide0
[    3.511469] device: 'ide0': device_add
[    3.511826] PM: Adding info for No Bus:ide0
[    3.512336] Probing IDE interface ide1...
[    4.300316] hdc: QEMU DVD-ROM, ATAPI CD/DVD-ROM drive
[    5.020252] device: 'ide1': device_add
[    5.020609] PM: Adding info for No Bus:ide1
[    5.020991] device: 'ide1': device_add
[    5.021681] PM: Adding info for No Bus:ide1
[    5.022073] hdc: host max PIO4 wanted PIO255(auto-tune) selected PIO0
[    5.022702] hdc: MWDMA2 mode selected
[    5.023599] ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
[    5.024179] ide1 at 0x170-0x177,0x376 on irq 15
[    5.024918] device: '1.0': device_add
[    5.025368] bus: 'ide': add device 1.0
[    5.025949] PM: Adding info for ide:1.0
[    5.026478] bus: 'pci': add driver AEC62xx_IDE
[    5.026951] bus: 'pci': add driver ALI15x3_IDE
[    5.027676] bus: 'pci': add driver AMD_IDE
[    5.028122] bus: 'pci': add driver SC1200_IDE
[    5.028750] bus: 'pci': add driver HPT366_IDE
[    5.029300] bus: 'pci': add driver JMicron IDE
[    5.029925] bus: 'pci': add driver NS87415_IDE
[    5.030426] bus: 'pci': add driver Opti621_IDE
[    5.030893] bus: 'pci': add driver PIIX_IDE
[    5.031513] bus: 'pci': driver_probe_device: matched device 0000:00:01.1 with driver PIIX_IDE
[    5.032262] bus: 'pci': really_probe: probing driver PIIX_IDE with device 0000:00:01.1
[    5.032960] driver: '0000:00:01.1': driver_bound: bound to device 'PIIX_IDE'
[    5.033652] bus: 'pci': really_probe: bound device 0000:00:01.1 to driver PIIX_IDE
[    5.034387] bus: 'pci': add driver RZ1000_IDE
[    5.034849] bus: 'pci': add driver SiI_IDE
[    5.035519] bus: 'pci': add driver SIS_IDE
[    5.035961] bus: 'pci': add driver SLC90e66_IDE
[    5.036603] bus: 'pci': add driver TC86C001
[    5.037531] ide_generic: please use "probe_mask=0x3f" module parameter for probing all legacy ISA IDE ports
[    5.038383] bus: 'platform': add driver pata_platform
[    5.039046] device class 'raid_devices': registering
[    5.039631] device class 'spi_transport': registering
[    5.040159] device class 'spi_host': registering
[    5.040625] device class 'fc_host': registering
[    5.041329] device class 'fc_vports': registering
[    5.041803] device class 'fc_remote_ports': registering
[    5.042324] device class 'fc_transport': registering
[    5.042816] Loading iSCSI transport class v2.0-870.
[    5.043332] device class 'iscsi_transport': registering
[    5.043961] device class 'iscsi_endpoint': registering
[    5.044475] device class 'iscsi_iface': registering
[    5.044961] device class 'iscsi_host': registering
[    5.045525] device class 'iscsi_connection': registering
[    5.046163] device class 'iscsi_session': registering
[    5.047699] device class 'sas_host': registering
[    5.048440] device class 'sas_phy': registering
[    5.049056] device class 'sas_port': registering
[    5.049606] device class 'sas_device': registering
[    5.050120] device class 'sas_end_device': registering
[    5.050635] device class 'sas_expander': registering
[    5.051326] device class 'srp_host': registering
[    5.051795] device class 'srp_remote_ports': registering
[    5.054302] bus: 'fcoe': registered
[    5.054624] fnic: Cisco FCoE HBA Driver, ver 1.5.0.2
[    5.055524] bus: 'pci': add driver fnic
[    5.055943] bnx2fc: Broadcom NetXtreme II FCoE Driver bnx2fc v1.0.12 (Jun 04, 2012)
[    5.058002] bus: 'pci': add driver advansys
[    5.058459] Loading Adaptec I2O RAID: Version 2.4 Build 5go
[    5.058951] Detecting Adaptec I2O RAID controllers...
[    5.059491] bus: 'pci': add driver arcmsr
[    5.060200] bus: 'pci': add driver aic79xx
[    5.060655] bus: 'pci': add driver ips
[    5.061325] bus: 'pci': remove driver ips
[    5.061739] driver: 'ips': driver_release
[    5.062164] scsi: <fdomain> Detection failed (no card)
[    5.062944] device: 'qla4xxx': device_add
[    5.063597] PM: Adding info for No Bus:qla4xxx
[    5.064028] iscsi: registered transport (qla4xxx)
[    5.064454] bus: 'pci': add driver qla4xxx
[    5.064847] QLogic iSCSI HBA Driver
[    5.065241] Brocade BFA FC/FCOE SCSI driver - version: 3.1.2.0
[    5.065869] bus: 'pci': add driver bfa
[    5.066415] bus: 'pci': add driver dmx3191d
[    5.066820] bus: 'pci': add driver hpsa
[    5.067463] bus: 'pci': add driver sym53c8xx
[    5.068098] bus: 'pci': add driver dc395x
[    5.068494] mpt2sas version 14.100.00.00 loaded
[    5.068993] device: 'mpt2ctl': device_add
[    5.069913] PM: Adding info for No Bus:mpt2ctl
[    5.070434] bus: 'pci': add driver mpt2sas
[    5.070874] bus: 'pci': add driver inia100
[    5.071582] 3ware Storage Controller device driver for Linux v1.26.02.003.
[    5.072191] bus: 'pci': add driver 3w-xxxx
[    5.072625] 3ware 9000 Storage Controller device driver for Linux v2.26.02.014.
[    5.073351] bus: 'pci': add driver 3w-9xxx
[    5.073954] LSI 3ware SAS/SATA-RAID Controller device driver for Linux v3.26.02.000.
[    5.074644] bus: 'pci': add driver 3w-sas
[    5.075086] ipr: IBM Power RAID SCSI Device Driver version: 2.5.4 (July 11, 2012)
[    5.075837] bus: 'pci': add driver ipr
[    5.076249] RocketRAID 3xxx/4xxx Controller driver v1.6 (091225)
[    5.076781] bus: 'pci': add driver hptiop
[    5.077463] stex: Promise SuperTrak EX Driver version: 4.6.0000.4
[    5.078000] bus: 'pci': add driver stex
[    5.078421] libcxgbi:libcxgbi_init_module: tag itt 0x1fff, 13 bits, age 0xf, 4 bits.
[    5.079161] libcxgbi:ddp_setup_host_page_size: system PAGE 4096, ddp idx 0.
[    5.079786] Chelsio T4 iSCSI Driver cxgb4i v0.9.1 (Aug. 2010)
[    5.080619] device: 'cxgb4i': device_add
[    5.081252] PM: Adding info for No Bus:cxgb4i
[    5.081658] iscsi: registered transport (cxgb4i)
[    5.082085] Broadcom NetXtreme II iSCSI Driver bnx2i v2.7.2.2 (Apr 25, 2012)
[    5.082714] device: 'bnx2i': device_add
[    5.083070] PM: Adding info for No Bus:bnx2i
[    5.083604] iscsi: registered transport (bnx2i)
[    5.084857] device: 'be2iscsi': device_add
[    5.085515] PM: Adding info for No Bus:be2iscsi
[    5.085935] iscsi: registered transport (be2iscsi)
[    5.086360] In beiscsi_module_init, tt=ffffffff8253edd0
[    5.086818] bus: 'pci': add driver be2iscsi
[    5.087305] device class 'pmcsas': registering
[    5.087888] bus: 'pci': add driver PMC MaxRAID
[    5.089220] bus: 'virtio': add driver virtio_scsi
[    5.089665] st: Version 20101219, fixed bufsize 32768, s/g segs 256
[    5.090231] device class 'scsi_tape': registering
[    5.090835] bus: 'scsi': add driver st
[    5.091466] osst :I: Tape driver with OnStream support version 0.99.4
[    5.091466] osst :I: $Id: osst.c,v 1.73 2005/01/01 21:13:34 wriede Exp $
[    5.092602] device class 'onstream_tape': registering
[    5.093066] bus: 'scsi': add driver osst
[    5.093517] device class 'scsi_generic': registering
[    5.093979] SCSI Media Changer driver v0.25 
[    5.094364] device class 'scsi_changer': registering
[    5.094979] bus: 'scsi': add driver ch
[    5.095415] bus: 'scsi': add driver ses
[    5.095772] device class 'scsi_osd': registering
[    5.096346] bus: 'scsi': add driver osd
[    5.096899] osd: LOADED open-osd 0.2.1
[    5.104129] device: 'pseudo_0': device_add
[    5.104527] PM: Adding info for No Bus:pseudo_0
[    5.104951] bus: 'pseudo': registered
[    5.105355] bus: 'pseudo': add driver scsi_debug
[    5.107195] device: 'adapter0': device_add
[    5.107577] bus: 'pseudo': add device adapter0
[    5.107975] PM: Adding info for pseudo:adapter0
[    5.108386] bus: 'pseudo': driver_probe_device: matched device adapter0 with driver scsi_debug
[    5.109208] bus: 'pseudo': really_probe: probing driver scsi_debug with device adapter0
[    5.110308] scsi_debug: host protection
[    5.110685] scsi0 : scsi_debug, version 1.82 [20100324], dev_size_mb=8, opts=0x0
[    5.111456] device: 'host0': device_add
[    5.111810] bus: 'scsi': add device host0
[    5.112185] PM: Adding info for scsi:host0
[    5.112804] device: 'host0': device_add
[    5.113461] PM: Adding info for No Bus:host0
[    5.114750] scsi 0:0:0:0: Direct-Access     Linux    scsi_debug       0004 PQ: 0 ANSI: 5
[    5.115553] device: 'target0:0:0': device_add
[    5.116074] bus: 'scsi': add device target0:0:0
[    5.116502] PM: Adding info for scsi:target0:0:0
[    5.117002] device: '0:0:0:0': device_add
[    5.117857] bus: 'scsi': add device 0:0:0:0
[    5.118258] PM: Adding info for scsi:0:0:0:0
[    5.118704] bus: 'scsi': driver_probe_device: matched device 0:0:0:0 with driver st
[    5.119456] bus: 'scsi': really_probe: probing driver st with device 0:0:0:0
[    5.120115] st: probe of 0:0:0:0 rejects match -19
[    5.120542] bus: 'scsi': driver_probe_device: matched device 0:0:0:0 with driver osst
[    5.121303] bus: 'scsi': really_probe: probing driver osst with device 0:0:0:0
[    5.121944] osst: probe of 0:0:0:0 rejects match -19
[    5.122392] bus: 'scsi': driver_probe_device: matched device 0:0:0:0 with driver ch
[    5.123058] bus: 'scsi': really_probe: probing driver ch with device 0:0:0:0
[    5.123772] ch: probe of 0:0:0:0 rejects match -19
[    5.124203] bus: 'scsi': driver_probe_device: matched device 0:0:0:0 with driver ses
[    5.124874] bus: 'scsi': really_probe: probing driver ses with device 0:0:0:0
[    5.125587] ses: probe of 0:0:0:0 rejects match -19
[    5.126042] bus: 'scsi': driver_probe_device: matched device 0:0:0:0 with driver osd
[    5.126724] bus: 'scsi': really_probe: probing driver osd with device 0:0:0:0
[    5.127443] osd: probe of 0:0:0:0 rejects match -19
[    5.127877] device: '0:0:0:0': device_add
[    5.128272] PM: Adding info for No Bus:0:0:0:0
[    5.129266] device: 'sg0': device_add
[    5.130147] PM: Adding info for No Bus:sg0
[    5.130705] scsi 0:0:0:0: Attached scsi generic sg0 type 0
[    5.131737] device: '0:0:0:0': device_add
[    5.133034] PM: Adding info for No Bus:0:0:0:0
[    5.133615] driver: 'adapter0': driver_bound: bound to device 'scsi_debug'
[    5.134230] bus: 'pseudo': really_probe: bound device adapter0 to driver scsi_debug
[    5.134916] bus: 'platform': add driver ahci
[    5.135453] bus: 'platform': remove driver ahci
[    5.135908] driver: 'ahci': driver_release
[    5.136285] bus: 'pci': add driver sata_inic162x
[    5.136769] bus: 'pci': add driver sata_sil24
[    5.137528] bus: 'pci': add driver sata_sx4
[    5.137982] bus: 'pci': add driver sata_promise
[    5.138640] bus: 'pci': add driver sata_sis
[    5.139182] bus: 'pci': add driver sata_via
[    5.139646] bus: 'pci': add driver pata_artop
[    5.140315] bus: 'pci': add driver pata_atiixp
[    5.140788] bus: 'pci': add driver pata_cs5520
[    5.141522] bus: 'pci': add driver pata_cs5530
[    5.141999] bus: 'pci': add driver pata_cs5536
[    5.142645] bus: 'pci': add driver pata_cypress
[    5.143215] bus: 'pci': add driver pata_efar
[    5.143672] bus: 'pci': add driver pata_hpt366
[    5.144321] bus: 'pci': add driver pata_it8213
[    5.144794] bus: 'pci': add driver pata_it821x
[    5.145527] bus: 'pci': add driver pata_marvell
[    5.146003] bus: 'pci': add driver pata_netcell
[    5.146667] bus: 'pci': add driver pata_ninja32
[    5.147227] bus: 'pci': add driver pata_ns87415
[    5.147875] bus: 'pci': add driver pata_pdc202xx_old
[    5.148407] bus: 'pci': add driver pata_radisys
[    5.148888] bus: 'pci': add driver pata_sc1200
[    5.149614] bus: 'pci': add driver pata_sch
[    5.150078] bus: 'pci': add driver pata_sis
[    5.150709] bus: 'pci': add driver pata_piccolo
[    5.151278] bus: 'pci': add driver pata_triflex
[    5.151926] bus: 'pci': add driver pata_via
[    5.152396] bus: 'pci': add driver pata_sl82c105
[    5.152885] bus: 'pci': add driver pata_cmd640
[    5.153611] bus: 'pci': add driver pata_mpiix
[    5.154076] bus: 'pci': add driver pata_rz1000
[    5.154733] bus: 'pci': add driver pata_acpi
[    5.157462] Rounding down aligned max_sectors from 4294967295 to 8388600
[    5.158427] device: 'tcm_loop_0': device_add
[    5.159259] PM: Adding info for No Bus:tcm_loop_0
[    5.160160] bus: 'tcm_loop_bus': registered
[    5.160528] bus: 'tcm_loop_bus': add driver tcm_loop
[    5.161462] device class 'mtd': registering
[    5.161919] device: 'mtd-unmap': device_add
[    5.162534] PM: Adding info for No Bus:mtd-unmap
[    5.163600] device: 'mtd-romap': device_add
[    5.163997] PM: Adding info for No Bus:mtd-romap
[    5.164762] device: 'mtd-rwmap': device_add
[    5.165469] PM: Adding info for No Bus:mtd-rwmap
[    5.166267] SSFDC read-only Flash Translation layer
[    5.167313] L440GX flash mapping: failed to find PIIX4 ISA bridge, cannot continue
[    5.167995] device id = 2440
[    5.168346] device id = 2480
[    5.168610] device id = 24c0
[    5.168873] device id = 24d0
[    5.169214] device id = 25a1
[    5.169481] device id = 2670
[    5.169796] SBC-GXx flash: IO:0x258-0x259 MEM:0xdc000-0xdffff
[    5.170498] bus: 'pci': add driver MTD PCI
[    5.170894] bus: 'platform': add driver gpio-addr-flash
[    5.171588] bus: 'platform': add driver docg3
[    5.171999] bus: 'platform': remove driver docg3
[    5.172452] driver: 'docg3': driver_release
[    5.172827] slram: not enough parameters.
[    5.173274] Ramix PMC551 PCI Mezzanine Ram Driver. (C) 1999,2000 Nortel Networks.
[    5.173926] pmc551: not detected
[    5.200032] onenand_wait: timeout! ctrl=0x0000 intr=0x0000
[    5.200607] OneNAND Manufacturer: Samsung (0xec)
[    5.201011] OneNAND 16MB 1.8V 16-bit (0x04)
[    5.201459] OneNAND version = 0x001e
[    5.201773] Lock scheme is Continuous Lock
[    5.202618] Scanning device for bad blocks
[    5.203727] Creating 1 MTD partitions on "OneNAND simulator":
[    5.204320] 0x000000000000-0x000001000000 : "OneNAND simulator partition"
[    5.205779] device: 'mtd0': device_add
[    5.206763] PM: Adding info for No Bus:mtd0
[    5.208146] device: '31:0': device_add
[    5.208792] PM: Adding info for No Bus:31:0
[    5.209684] device: 'mtdblock0': device_add
[    5.210570] PM: Adding info for No Bus:mtdblock0
[    5.211508] bus: 'hsi': add driver hsi_char
[    5.211950] HSI/SSI char device loaded
[    5.212372] bonding: Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
[    5.213584] device: 'bond0': device_add
[    5.215063] PM: Adding info for No Bus:bond0
[    5.220307] device: 'dummy0': device_add
[    5.221417] PM: Adding info for No Bus:dummy0
[    5.222373] eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com)
[    5.223210] device: 'eql': device_add
[    5.224261] PM: Adding info for No Bus:eql
[    5.225823] bus: 'mdio_bus': add driver Marvell 88E1101
[    5.226614] bus: 'mdio_bus': add driver Marvell 88E1112
[    5.227142] bus: 'mdio_bus': add driver Marvell 88E1111
[    5.227664] bus: 'mdio_bus': add driver Marvell 88E1118
[    5.228456] bus: 'mdio_bus': add driver Marvell 88E1121R
[    5.228986] bus: 'mdio_bus': add driver Marvell 88E1318S
[    5.229595] bus: 'mdio_bus': add driver Marvell 88E1145
[    5.230385] bus: 'mdio_bus': add driver Marvell 88E1149R
[    5.230915] bus: 'mdio_bus': add driver Marvell 88E1240
[    5.231443] bus: 'mdio_bus': add driver Davicom DM9161E
[    5.232233] bus: 'mdio_bus': add driver Davicom DM9161A
[    5.232754] bus: 'mdio_bus': add driver Davicom DM9131
[    5.233353] bus: 'mdio_bus': add driver Broadcom BCM5411
[    5.234072] bus: 'mdio_bus': add driver Broadcom BCM5421
[    5.234680] bus: 'mdio_bus': add driver Broadcom BCM5461
[    5.235212] bus: 'mdio_bus': add driver Broadcom BCM5464
[    5.235737] bus: 'mdio_bus': add driver Broadcom BCM5481
[    5.236533] bus: 'mdio_bus': add driver Broadcom BCM5482
[    5.237066] bus: 'mdio_bus': add driver Broadcom BCM50610
[    5.237682] bus: 'mdio_bus': add driver Broadcom BCM50610M
[    5.238496] bus: 'mdio_bus': add driver Broadcom BCM57780
[    5.239033] bus: 'mdio_bus': add driver Broadcom BCMAC131
[    5.239575] bus: 'mdio_bus': add driver Broadcom BCM5241
[    5.240563] Registering platform device 'Fixed MDIO bus.0'. Parent at platform
[    5.241283] device: 'Fixed MDIO bus.0': device_add
[    5.241708] bus: 'platform': add device Fixed MDIO bus.0
[    5.242276] PM: Adding info for platform:Fixed MDIO bus.0
[    5.242829] device: 'fixed-0': device_add
[    5.243435] PM: Adding info for No Bus:fixed-0
[    5.243957] libphy: Fixed MDIO Bus: probed
[    5.244404] bus: 'mdio_bus': add driver STe101p
[    5.244863] bus: 'mdio_bus': add driver STe100p
[    5.245406] bus: 'mdio_bus': add driver Micrel KS8737
[    5.246192] bus: 'mdio_bus': add driver Micrel KS8041
[    5.246700] bus: 'mdio_bus': add driver Micrel KS8051
[    5.247213] bus: 'mdio_bus': add driver Micrel KS8001 or KS8721
[    5.247792] bus: 'mdio_bus': add driver Micrel KSZ9021 Gigabit PHY
[    5.248680] tun: Universal TUN/TAP device driver, 1.6
[    5.249169] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[    5.249727] device: 'tun': device_add
[    5.250317] PM: Adding info for No Bus:tun
[    5.250737] bus: 'virtio': add driver virtio_net
[    5.251466] arcnet loaded.
[    5.251716] arcnet: raw mode (`r') encapsulation support loaded.
[    5.252342] arcnet: COM90xx IO-mapped mode support (by David Woodhouse et el.)
[    5.252976] E-mail me if you actually test this driver, please!
[    5.253582]  arc%d: No autoprobe for IO mapped cards; you must specify the base address!
[    5.254392] arcnet: RIM I (entirely mem-mapped) support
[    5.254851] E-mail me if you actually test the RIM I driver, please!
[    5.255408] Given: node 00h, shmem 0h, irq 0
[    5.255781] No autoprobe for RIM I; you must specify the shmem and irq!
[    5.256444] arcnet: COM20020 PCI support
[    5.256798] bus: 'pci': add driver com20020
[    5.257667] vcan: Virtual CAN interface driver
[    5.258069] slcan: serial line CAN interface driver
[    5.258577] slcan: 10 dynamic interface channels.
[    5.258994] CAN device driver interface
[    5.259341] bus: 'usb': add driver ems_usb
[    5.259724] usbcore: registered new interface driver ems_usb
[    5.260328] bus: 'usb': add driver peak_usb
[    5.260940] usbcore: registered new interface driver peak_usb
[    5.261539] bus: 'platform': add driver softing
[    5.261965] sja1000 CAN netdevice driver
[    5.262393] sja1000_isa: insufficient parameters supplied
[    5.262869] bus: 'pci': add driver kvaser_pci
[    5.263492] bus: 'pci': add driver sja1000_plx_pci
[    5.263950] cc770: CAN netdevice driver
[    5.264394] bus: 'pci': add driver amd8111e
[    5.264985] bus: 'pci': add driver atl1
[    5.265447] bus: 'pci': add driver ATL1E
[    5.265845] bus: 'pci': add driver bnx2
[    5.266493] cnic: Broadcom NetXtreme II CNIC Driver cnic v2.5.13 (Sep 07, 2012)
[    5.267872] bnx2x: Broadcom NetXtreme II 5771x/578xx 10/20-Gigabit Ethernet Driver bnx2x 1.72.51-0 (2012/06/18)
[    5.269359] bus: 'pci': add driver bnx2x
[    5.270037] bus: 'platform': add driver calxedaxgmac
[    5.270580] bus: 'pci': add driver cxgb
[    5.270954] bus: 'pci': add driver cxgb3
[    5.272029] bus: 'pci': add driver cxgb4
[    5.272531] bus: 'platform': add driver dnet
[    5.273272] dmfe: Davicom DM9xxx net driver, version 1.36.4 (2002-01-17)
[    5.273878] bus: 'pci': add driver dmfe
[    5.274379] bus: 'pci': add driver de2104x
[    5.274821] bus: 'pci': add driver tulip
[    5.275456] bus: 'pci': add driver de4x5
[    5.275881] ixgbevf: Intel(R) 10 Gigabit PCI Express Virtual Function Network Driver - version 2.6.0-k
[    5.276763] ixgbevf: Copyright (c) 2009 - 2012 Intel Corporation.
[    5.277377] bus: 'pci': add driver ixgbevf
[    5.278088] bus: 'pci': add driver Sundance Technology IPG Triple-Speed Ethernet
[    5.278885] jme: JMicron JMC2XX ethernet driver version 1.0.8
[    5.279403] bus: 'pci': add driver jme
[    5.280024] sky2: driver version 1.30
[    5.280770] bus: 'pci': add driver sky2
[    5.281888] bus: 'pci': add driver mlx4_core
[    5.282656] bus: 'pci': add driver ksz884xp
[    5.283064] myri10ge: Version 1.5.3-1.534
[    5.283427] bus: 'pci': add driver myri10ge
[    5.284024] bus: 'platform': add driver ethoc
[    5.284521] bus: 'pci': add driver hamachi
[    5.284922] bus: 'pci': add driver 8139cp
[    5.285596] bus: 'pci': add driver 8139too
[    5.286007] bus: 'pci': add driver hme
[    5.286659] bus: 'pci': add driver gem
[    5.287026] bus: 'pci': add driver cassini
[    5.287427] bus: 'pci': add driver defxx
[    5.287989] mkiss: AX.25 Multikiss, Hans Albas PE1AYX
[    5.288522] baycom_ser_fdx: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA
[    5.288522] baycom_ser_fdx: version 0.10
[    5.289524] device: 'bcsf0': device_add
[    5.290642] PM: Adding info for No Bus:bcsf0
[    5.291331] device: 'bcsf1': device_add
[    5.292940] PM: Adding info for No Bus:bcsf1
[    5.293709] device: 'bcsf2': device_add
[    5.294800] PM: Adding info for No Bus:bcsf2
[    5.295476] device: 'bcsf3': device_add
[    5.296563] PM: Adding info for No Bus:bcsf3
[    5.297321] hdlcdrv: (C) 1996-2000 Thomas Sailer HB9JNX/AE4WA
[    5.297842] hdlcdrv: version 0.8
[    5.298206] baycom_ser_hdx: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA
[    5.298206] baycom_ser_hdx: version 0.10
[    5.299256] device: 'bcsh0': device_add
[    5.300408] PM: Adding info for No Bus:bcsh0
[    5.301325] device: 'bcsh1': device_add
[    5.302473] PM: Adding info for No Bus:bcsh1
[    5.303152] device: 'bcsh2': device_add
[    5.304261] PM: Adding info for No Bus:bcsh2
[    5.304935] device: 'bcsh3': device_add
[    5.306067] PM: Adding info for No Bus:bcsh3
[    5.306807] bus: 'platform': add driver nsc-ircc
[    5.307252] bus: 'pnp': add driver nsc-ircc
[    5.307705] bus: 'platform': remove driver nsc-ircc
[    5.308220] driver: 'nsc-ircc': driver_release
[    5.308621] bus: 'pnp': remove driver nsc-ircc
[    5.309019] driver: 'nsc-ircc': driver_release
[    5.309636] bus: 'pci': add driver vlsi_ir
[    5.310042] bus: 'pci': add driver via-ircc
[    5.311463] bus: 'usb': add driver kingsun-sir
[    5.311874] usbcore: registered new interface driver kingsun-sir
[    5.312481] bus: 'usb': add driver ksdazzle-sir
[    5.313230] usbcore: registered new interface driver ksdazzle-sir
[    5.313783] Loaded prism54 driver, version 1.2
[    5.314257] bus: 'pci': add driver prism54
[    5.314650] bus: 'usb': add driver zd1201
[    5.315246] usbcore: registered new interface driver zd1201
[    5.315741] VMware vmxnet3 virtual NIC driver - version 1.1.29.0-k-NAPI
[    5.316400] bus: 'pci': add driver vmxnet3
[    5.316795] bus: 'usb': add driver catc
[    5.317243] usbcore: registered new interface driver catc
[    5.317721] bus: 'usb': add driver kaweth
[    5.318373] usbcore: registered new interface driver kaweth
[    5.318873] hv_vmbus: registering driver hv_netvsc
[    5.319307] device class 'uio': registering
[    5.319694] bus: 'pci': add driver hilscher
[    5.320195] bus: 'platform': add driver uio_pdrv
[    5.320836] bus: 'platform': add driver uio_pdrv_genirq
[    5.321403] bus: 'pci': add driver aectc
[    5.321794] Generic UIO driver for PCI 2.3 devices version: 0.01.0
[    5.322418] bus: 'pci': add driver uio_pci_generic
[    5.323076] bus: 'pci': add driver netx
[    5.323461] device class 'aoe': registering
[    5.324045] device: 'err': device_add
[    5.325006] PM: Adding info for No Bus:err
[    5.325627] device: 'discover': device_add
[    5.326416] PM: Adding info for No Bus:discover
[    5.326920] device: 'interfaces': device_add
[    5.327754] PM: Adding info for No Bus:interfaces
[    5.328276] device: 'revalidate': device_add
[    5.329022] PM: Adding info for No Bus:revalidate
[    5.329783] device: 'flush': device_add
[    5.330552] PM: Adding info for No Bus:flush
[    5.331938] aoe: AoE v49 initialised.
[    5.332719] device class 'uwb_rc': registering
[    5.333493] bus: 'umc': registered
[    5.333806] bus: 'pci': add driver whci
[    5.334301] bus: 'umc': add driver whc-rc
[    5.334983] bus: 'usb': add driver hwa-rc
[    5.335412] usbcore: registered new interface driver hwa-rc
[    5.335904] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    5.336554] bus: 'pci': add driver ehci_hcd
[    5.337004] bus: 'platform': add driver oxu210hp-hcd
[    5.337810] uhci_hcd: USB Universal Host Controller Interface driver
[    5.338465] bus: 'pci': add driver uhci_hcd
[    5.338915] bus: 'platform': add driver sl811-hcd
[    5.339622] driver u132_hcd
[    5.340208] bus: 'platform': add driver u132_hcd
[    5.340687] bus: 'platform': add driver r8a66597_hcd
[    5.341275] bus: 'usb': add driver hwa-hc
[    5.341955] usbcore: registered new interface driver hwa-hc
[    5.342533] bus: 'platform': add driver c67x00
[    5.343268] bus: 'usb': add driver cdc_acm
[    5.343931] usbcore: registered new interface driver cdc_acm
[    5.344512] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    5.345283] bus: 'usb': add driver usblp
[    5.345701] usbcore: registered new interface driver usblp
[    5.346268] Initializing USB Mass Storage driver...
[    5.346694] bus: 'usb': add driver usb-storage
[    5.347149] usbcore: registered new interface driver usb-storage
[    5.347674] USB Mass Storage support registered.
[    5.348142] bus: 'usb': add driver ums-alauda
[    5.348826] usbcore: registered new interface driver ums-alauda
[    5.349429] bus: 'usb': add driver ums-cypress
[    5.349878] usbcore: registered new interface driver ums-cypress
[    5.350447] bus: 'usb': add driver ums-datafab
[    5.350899] usbcore: registered new interface driver ums-datafab
[    5.351435] bus: 'usb': add driver ums_eneub6250
[    5.352204] usbcore: registered new interface driver ums_eneub6250
[    5.352764] bus: 'usb': add driver ums-freecom
[    5.353299] usbcore: registered new interface driver ums-freecom
[    5.353831] bus: 'usb': add driver ums-jumpshot
[    5.354369] usbcore: registered new interface driver ums-jumpshot
[    5.354905] bus: 'usb': add driver ums-onetouch
[    5.355592] usbcore: registered new interface driver ums-onetouch
[    5.356212] bus: 'usb': add driver ums-sddr55
[    5.356653] usbcore: registered new interface driver ums-sddr55
[    5.357264] bus: 'usb': add driver ums-usbat
[    5.357700] usbcore: registered new interface driver ums-usbat
[    5.358300] bus: 'usb': add driver cytherm
[    5.358950] usbcore: registered new interface driver cytherm
[    5.359456] driver ftdi-elan
[    5.360674] bus: 'usb': add driver ftdi-elan
[    5.361468] usbcore: registered new interface driver ftdi-elan
[    5.361986] bus: 'usb': add driver iowarrior
[    5.362521] usbcore: registered new interface driver iowarrior
[    5.363038] bus: 'usb': add driver isight_firmware
[    5.363529] usbcore: registered new interface driver isight_firmware
[    5.364168] bus: 'usb': add driver legousbtower
[    5.364871] usbcore: registered new interface driver legousbtower
[    5.365496] bus: 'usb': add driver rio500
[    5.365925] usbcore: registered new interface driver rio500
[    5.366501] bus: 'usb': add driver usbtest
[    5.367166] usbcore: registered new interface driver usbtest
[    5.367668] bus: 'usb': add driver yurex
[    5.368141] usbcore: registered new interface driver yurex
[    5.368648] bus: 'platform': add driver omap-usb2
[    5.369199] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
[    5.369726] bus: 'platform': add driver musb-hdrc
[    5.370562] bus: 'platform': add driver musb-tusb
[    5.371046] bus: 'platform': add driver ci_hdrc
[    5.371522] bus: 'platform': add driver msm_hsusb
[    5.372308] bus: 'pci': add driver ci13xxx_pci
[    5.372789] bus: 'platform': add driver dummy_hcd
[    5.373353] bus: 'platform': add driver dummy_udc
[    5.374065] Registering platform device 'dummy_hcd'. Parent at platform
[    5.374737] device: 'dummy_hcd': device_add
[    5.375117] bus: 'platform': add device dummy_hcd
[    5.375542] PM: Adding info for platform:dummy_hcd
[    5.376033] bus: 'platform': driver_probe_device: matched device dummy_hcd with driver dummy_hcd
[    5.376881] bus: 'platform': really_probe: probing driver dummy_hcd with device dummy_hcd
[    5.377684] dummy_hcd dummy_hcd: USB Host+Gadget Emulator, driver 02 May 2005
[    5.378417] dummy_hcd dummy_hcd: Dummy host controller
[    5.378908] dummy_hcd dummy_hcd: new USB bus registered, assigned bus number 1
[    5.379999] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    5.380696] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    5.381404] usb usb1: Product: Dummy host controller
[    5.381840] usb usb1: Manufacturer: Linux 3.6.0-rc6-next-20120918-08732-g3de9d1a dummy_hcd
[    5.382641] usb usb1: SerialNumber: dummy_hcd
[    5.383038] device: 'usb1': device_add
[    5.385261] bus: 'usb': add device usb1
[    5.385649] PM: Adding info for usb:usb1
[    5.386062] bus: 'usb': driver_probe_device: matched device usb1 with driver usb
[    5.386787] bus: 'usb': really_probe: probing driver usb with device usb1
[    5.387855] device: '1-0:1.0': device_add
[    5.388325] bus: 'usb': add device 1-0:1.0
[    5.388698] PM: Adding info for usb:1-0:1.0
[    5.389189] bus: 'usb': driver_probe_device: matched device 1-0:1.0 with driver hub
[    5.389857] bus: 'usb': really_probe: probing driver hub with device 1-0:1.0
[    5.390861] hub 1-0:1.0: USB hub found
[    5.391256] hub 1-0:1.0: 1 port detected
[    5.391680] device: 'port1': device_add
[    5.392042] PM: Adding info for No Bus:port1
[    5.392534] driver: '1-0:1.0': driver_bound: bound to device 'hub'
[    5.393077] bus: 'usb': really_probe: bound device 1-0:1.0 to driver hub
[    5.393762] device: 'ep_81': device_add
[    5.394438] PM: Adding info for No Bus:ep_81
[    5.394830] driver: 'usb1': driver_bound: bound to device 'usb'
[    5.395364] bus: 'usb': really_probe: bound device usb1 to driver usb
[    5.396180] device: 'ep_00': device_add
[    5.396557] PM: Adding info for No Bus:ep_00
[    5.397271] driver: 'dummy_hcd': driver_bound: bound to device 'dummy_hcd'
[    5.397880] bus: 'platform': really_probe: bound device dummy_hcd to driver dummy_hcd
[    5.398651] Registering platform device 'dummy_udc'. Parent at platform
[    5.399235] device: 'dummy_udc': device_add
[    5.399614] bus: 'platform': add device dummy_udc
[    5.400057] PM: Adding info for platform:dummy_udc
[    5.400580] bus: 'platform': driver_probe_device: matched device dummy_udc with driver dummy_udc
[    5.401422] bus: 'platform': really_probe: probing driver dummy_udc with device dummy_udc
[    5.402221] device: 'gadget': device_add
[    5.402581] PM: Adding info for No Bus:gadget
[    5.403003] device: 'dummy_udc': device_add
[    5.403681] PM: Adding info for No Bus:dummy_udc
[    5.404443] driver: 'dummy_udc': driver_bound: bound to device 'dummy_udc'
[    5.405052] bus: 'platform': really_probe: bound device dummy_udc to driver dummy_udc
[    5.405820] bus: 'pci': add driver net2272
[    5.406298] bus: 'platform': add driver net2272
[    5.406721] bus: 'pci': add driver net2280
[    5.407344] bus: 'platform': add driver m66592_udc
[    5.407791] bus: 'platform': remove driver m66592_udc
[    5.408324] driver: 'm66592_udc': driver_release
[    5.408733] bus: 'platform': add driver r8a66597_udc
[    5.409268] bus: 'platform': remove driver r8a66597_udc
[    5.409735] driver: 'r8a66597_udc': driver_release
[    5.410262] bus: 'pci': add driver pch_udc
[    5.410658] bus: 'pnp': add driver i8042 kbd
[    5.411045] bus: 'pnp': driver_probe_device: matched device 00:02 with driver i8042 kbd
[    5.411746] bus: 'pnp': really_probe: probing driver i8042 kbd with device 00:02
[    5.412488] driver: '00:02': driver_bound: bound to device 'i8042 kbd'
[    5.413068] bus: 'pnp': really_probe: bound device 00:02 to driver i8042 kbd
[    5.414164] bus: 'pnp': add driver i8042 aux
[    5.414568] bus: 'pnp': driver_probe_device: matched device 00:03 with driver i8042 aux
[    5.415272] bus: 'pnp': really_probe: probing driver i8042 aux with device 00:03
[    5.415927] driver: '00:03': driver_bound: bound to device 'i8042 aux'
[    5.416580] bus: 'pnp': really_probe: bound device 00:03 to driver i8042 aux
[    5.417335] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[    5.418054] Registering platform device 'i8042'. Parent at platform
[    5.418679] device: 'i8042': device_add
[    5.419026] bus: 'platform': add device i8042
[    5.419425] PM: Adding info for platform:i8042
[    5.419887] bus: 'platform': add driver i8042
[    5.420541] bus: 'platform': driver_probe_device: matched device i8042 with driver i8042
[    5.421328] bus: 'platform': really_probe: probing driver i8042 with device i8042
[    5.423144] serio: i8042 KBD port at 0x60,0x64 irq 1
[    5.423657] serio: i8042 AUX port at 0x60,0x64 irq 12
[    5.424166] driver: 'i8042': driver_bound: bound to device 'i8042'
[    5.424730] bus: 'platform': really_probe: bound device i8042 to driver i8042
[    5.425445] bus: 'serio': add driver ps2mult
[    5.425874] bus: 'pci': add driver Emu10k1_gameport
[    5.426728] device: 'event0': device_add
[    5.427555] device: 'serio0': device_add
[    5.427965] bus: 'serio': add device serio0
[    5.428674] PM: Adding info for serio:serio0
[    5.429157] device: 'serio1': device_add
[    5.429546] bus: 'serio': add device serio1
[    5.430434] PM: Adding info for No Bus:event0
[    5.430437] PM: Adding info for serio:serio1
[    5.431250] bus: 'serio': add driver atkbd
[    5.431659] bus: 'usb': add driver bcm5974
[    5.432045] usbcore: registered new interface driver bcm5974
[    5.432626] bus: 'platform': add driver gpio_mouse
[    5.433355] bus: 'serio': driver_probe_device: matched device serio0 with driver atkbd
[    5.434055] bus: 'serio': really_probe: probing driver atkbd with device serio0
[    5.436166] bus: 'serio': add driver psmouse
[    5.437304] bus: 'serio': add driver sermouse
[    5.437605] device: 'input1': device_add
[    5.437971] PM: Adding info for No Bus:input1
[    5.438014] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[    5.438038] device: 'event1': device_add
[    5.438376] PM: Adding info for No Bus:event1
[    5.438496] driver: 'serio0': driver_bound: bound to device 'atkbd'
[    5.438500] bus: 'serio': really_probe: bound device serio0 to driver atkbd
[    5.438505] bus: 'serio': driver_probe_device: matched device serio1 with driver atkbd
[    5.438506] bus: 'serio': really_probe: probing driver atkbd with device serio1
[    5.442914] bus: 'gameport': add driver adc
[    5.442954] atkbd: probe of serio1 rejects match -19
[    5.442961] bus: 'serio': driver_probe_device: matched device serio1 with driver psmouse
[    5.442962] bus: 'serio': really_probe: probing driver psmouse with device serio1
[    5.445764] bus: 'gameport': add driver adi
[    5.446254] bus: 'gameport': add driver gf2k
[    5.447004] bus: 'gameport': add driver grip
[    5.447481] bus: 'gameport': add driver grip_mp
[    5.447967] bus: 'serio': add driver magellan
[    5.448753] bus: 'gameport': add driver sidewinder
[    5.449302] bus: 'serio': add driver spaceball
[    5.450157] bus: 'serio': add driver spaceorb
[    5.450627] bus: 'gameport': add driver tmdc
[    5.451118] bus: 'serio': add driver zhenhua
[    5.451854] bus: 'usb': add driver usb_acecad
[    5.452416] usbcore: registered new interface driver usb_acecad
[    5.452993] bus: 'usb': add driver aiptek
[    5.453722] usbcore: registered new interface driver aiptek
[    5.454381] bus: 'usb': add driver gtco
[    5.454798] usbcore: registered new interface driver gtco
[    5.455343] bus: 'usb': add driver hanwang
[    5.456153] usbcore: registered new interface driver hanwang
[    5.456734] bus: 'usb': add driver kbtab
[    5.457203] usbcore: registered new interface driver kbtab
[    5.457814] bus: 'usb': add driver wacom
[    5.458285] usbcore: registered new interface driver wacom
[    5.458857] bus: 'serio': add driver hampshire
[    5.459606] bus: 'serio': add driver elo
[    5.460059] mk712: device not present
[    5.460509] bus: 'usb': add driver usbtouchscreen
[    5.461308] usbcore: registered new interface driver usbtouchscreen
[    5.461933] bus: 'serio': add driver tsc40
[    5.462463] bus: 'platform': add driver rtc-bq4802
[    5.463269] bus: 'pnp': add driver rtc_cmos
[    5.463733] bus: 'pnp': driver_probe_device: matched device 00:01 with driver rtc_cmos
[    5.464542] bus: 'pnp': really_probe: probing driver rtc_cmos with device 00:01
[    5.465355] rtc_cmos 00:01: RTC can wake from S4
[    5.465826] device: 'input2': device_add
[    5.467178] device: 'rtc0': device_add
[    5.467190] PM: Adding info for No Bus:input2
[    5.467323] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2
[    5.467660] device: 'event2': device_add
[    5.467760] PM: Adding info for No Bus:event2
[    5.467934] driver: 'serio1': driver_bound: bound to device 'psmouse'
[    5.467937] bus: 'serio': really_probe: bound device serio1 to driver psmouse
[    5.471209] PM: Adding info for No Bus:rtc0
[    5.471709] rtc_cmos 00:01: rtc core: registered rtc_cmos as rtc0
[    5.472415] rtc0: alarms up to one day, 114 bytes nvram, hpet irqs
[    5.473022] driver: '00:01': driver_bound: bound to device 'rtc_cmos'
[    5.473645] bus: 'pnp': really_probe: bound device 00:01 to driver rtc_cmos
[    5.474388] bus: 'platform': add driver rtc-ds1286
[    5.474903] bus: 'platform': add driver rtc-m48t35
[    5.475428] bus: 'platform': add driver rtc-m48t59
[    5.476241] bus: 'platform': add driver rtc-m48t86
[    5.476762] bus: 'platform': add driver rtc-msm6242
[    5.477320] bus: 'platform': remove driver rtc-msm6242
[    5.477854] driver: 'rtc-msm6242': driver_release
[    5.478333] bus: 'platform': add driver rtc-rp5c01
[    5.478846] bus: 'platform': remove driver rtc-rp5c01
[    5.479380] driver: 'rtc-rp5c01': driver_release
[    5.479816] bus: 'platform': add driver stk17ta8
[    5.480364] bus: 'platform': add driver rtc-test
[    5.481157] Registering platform device 'rtc-test.0'. Parent at platform
[    5.481780] device: 'rtc-test.0': device_add
[    5.482222] bus: 'platform': add device rtc-test.0
[    5.482680] PM: Adding info for platform:rtc-test.0
[    5.483214] bus: 'platform': driver_probe_device: matched device rtc-test.0 with driver rtc-test
[    5.484019] bus: 'platform': really_probe: probing driver rtc-test with device rtc-test.0
[    5.485199] device: 'rtc1': device_add
[    5.485859] PM: Adding info for No Bus:rtc1
[    5.486304] rtc-test rtc-test.0: rtc core: registered test as rtc1
[    5.486874] driver: 'rtc-test.0': driver_bound: bound to device 'rtc-test'
[    5.487508] bus: 'platform': really_probe: bound device rtc-test.0 to driver rtc-test
[    5.488337] Registering platform device 'rtc-test.1'. Parent at platform
[    5.488951] device: 'rtc-test.1': device_add
[    5.489383] bus: 'platform': add device rtc-test.1
[    5.489820] PM: Adding info for platform:rtc-test.1
[    5.490337] bus: 'platform': driver_probe_device: matched device rtc-test.1 with driver rtc-test
[    5.491194] bus: 'platform': really_probe: probing driver rtc-test with device rtc-test.1
[    5.491933] device: 'rtc2': device_add
[    5.492633] PM: Adding info for No Bus:rtc2
[    5.493171] rtc-test rtc-test.1: rtc core: registered test as rtc2
[    5.493737] driver: 'rtc-test.1': driver_bound: bound to device 'rtc-test'
[    5.494429] bus: 'platform': really_probe: bound device rtc-test.1 to driver rtc-test
[    5.495198] bus: 'platform': add driver v3020
[    5.495729] device class 'rc': registering
[    5.496453] IR NEC protocol handler initialized
[    5.496862] IR RC6 protocol handler initialized
[    5.497347] IR JVC protocol handler initialized
[    5.497753] IR SANYO protocol handler initialized
[    5.498266] bus: 'usb': add driver ati_remote
[    5.499015] usbcore: registered new interface driver ati_remote
[    5.499627] bus: 'pnp': add driver ite-cir
[    5.500100] bus: 'usb': add driver mceusb
[    5.500546] usbcore: registered new interface driver mceusb
[    5.501053] bus: 'pnp': add driver fintek-cir
[    5.501842] bus: 'pnp': add driver nuvoton-cir
[    5.502401] bus: 'usb': add driver streamzap
[    5.503089] usbcore: registered new interface driver streamzap
[    5.503738] bus: 'pnp': add driver Winbond CIR
[    5.504623] Registered IR keymap rc-empty
[    5.505015] device: 'rc0': device_add
[    5.505488] PM: Adding info for No Bus:rc0
[    5.505985] device: 'input3': device_add
[    5.506988] PM: Adding info for No Bus:input3
[    5.507553] input: rc-core loopback device as /devices/virtual/rc/rc0/input3
[    5.508585] device: 'event3': device_add
[    5.509419] PM: Adding info for No Bus:event3
[    5.509924] rc0: rc-core loopback device as /devices/virtual/rc/rc0
[    5.510745] bus: 'usb': add driver hdpvr
[    5.511262] usbcore: registered new interface driver hdpvr
[    5.511749] Driver for 1-wire Dallas network protocol.
[    5.512605] bus: 'w1': registered
[    5.512916] bus: 'w1': add driver w1_master_driver
[    5.513504] bus: 'w1': add driver w1_slave_driver
[    5.513994] bus: 'pci': add driver matrox_w1
[    5.514797] bus: 'usb': add driver DS9490R
[    5.515320] usbcore: registered new interface driver DS9490R
[    5.515828] DS1WM w1 busmaster driver - (c) 2004 Szabolcs Gyurko
[    5.516443] bus: 'platform': add driver ds1wm
[    5.516902] bus: 'platform': add driver w1-gpio
[    5.517711] bus: 'platform': remove driver w1-gpio
[    5.518284] driver: 'w1-gpio': driver_release
[    5.518684] bus: 'platform': add driver omap_hdq
[    5.519537] device: 'test_ac': device_add
[    5.519941] PM: Adding info for No Bus:test_ac
[    5.520504] power_supply test_ac: uevent
[    5.520868] power_supply test_ac: POWER_SUPPLY_NAME=test_ac
[    5.521450] power_supply test_ac: prop ONLINE=1
[    5.521913] power_supply test_ac: power_supply_changed
[    5.522458] device: 'test_battery': device_add
[    5.523474] PM: Adding info for No Bus:test_battery
[    5.523987] power_supply test_battery: uevent
[    5.524469] power_supply test_battery: POWER_SUPPLY_NAME=test_battery
[    5.525048] power_supply test_battery: prop STATUS=Discharging
[    5.525645] power_supply test_battery: prop CHARGE_TYPE=Fast
[    5.526234] power_supply test_battery: prop HEALTH=Good
[    5.526702] power_supply test_battery: prop PRESENT=1
[    5.527239] power_supply test_battery: prop TECHNOLOGY=Li-ion
[    5.527752] power_supply test_battery: prop CHARGE_FULL_DESIGN=100
[    5.528384] power_supply test_battery: prop CHARGE_FULL=100
[    5.528881] power_supply test_battery: prop CHARGE_NOW=50
[    5.529448] power_supply test_battery: prop CAPACITY=50
[    5.529918] power_supply test_battery: prop CAPACITY_LEVEL=Normal
[    5.530497] power_supply test_battery: prop TIME_TO_EMPTY_AVG=3600
[    5.531044] power_supply test_battery: prop TIME_TO_FULL_NOW=3600
[    5.531673] power_supply test_battery: prop MODEL_NAME=Test battery
[    5.532319] power_supply test_battery: prop MANUFACTURER=Linux
[    5.532836] power_supply test_battery: prop SERIAL_NUMBER=3.6.0-rc6-next-20120918-08732-g3de9d1a
[    5.533692] power_supply test_battery: prop TEMP=26
[    5.534213] power_supply test_battery: prop VOLTAGE_NOW=3300
[    5.534735] power_supply test_battery: power_supply_changed
[    5.535351] device: 'test_usb': device_add
[    5.535745] PM: Adding info for No Bus:test_usb
[    5.536281] power_supply test_usb: uevent
[    5.536643] power_supply test_usb: POWER_SUPPLY_NAME=test_usb
[    5.537239] power_supply test_usb: prop ONLINE=1
[    5.537668] power_supply test_usb: power_supply_changed
[    5.538220] bus: 'platform': add driver ds2781-battery
[    5.538991] bus: 'platform': add driver max8903-charger
[    5.539615] applesmc: supported laptop not found!
[    5.540057] applesmc: driver init failed (ret=-19)!
[    5.540615] bus: 'platform': add driver gpio-fan
[    5.541231] bus: 'pci': add driver k8temp
[    5.541934] bus: 'pci': add driver k10temp
[    5.542471] bus: 'platform': add driver ntc-thermistor
[    5.543362] pc87360: PC8736x not detected, module not inserted
[    5.543886] bus: 'pci': add driver sis5595
[    5.544429] cpuidle: using governor ladder
[    5.544812] cpuidle: using governor menu
[    5.545246] bus: 'mmc': add driver mmc_test
[    5.545881] bus: 'sdio': add driver sdio_uart
[    5.546718] sdhci: Secure Digital Host Controller Interface driver
[    5.547351] sdhci: Copyright(c) Pierre Ossman
[    5.547741] bus: 'platform': add driver cb710-mmc
[    5.548263] VUB300 Driver rom wait states = 1C irqpoll timeout = 0400[    5.548864] power_supply test_ac: power_supply_changed_work
[    5.549402] power_supply test_ac: power_supply_update_gen_leds 1
[    5.550029] power_supply test_ac: uevent
[    5.550473] power_supply test_ac: POWER_SUPPLY_NAME=test_ac
[    5.550988] power_supply test_ac: prop ONLINE=1
[    5.551510] power_supply test_battery: power_supply_changed_work
[    5.552059] power_supply test_battery: power_supply_update_bat_leds 2
[    5.552776] power_supply test_battery: uevent
[    5.553187] power_supply test_battery: POWER_SUPPLY_NAME=test_battery
[    5.553774] power_supply test_battery: prop STATUS=Discharging
[    5.554389] power_supply test_battery: prop CHARGE_TYPE=Fast
[    5.554906] power_supply test_battery: prop HEALTH=Good
[    5.555467] power_supply test_battery: prop PRESENT=1
[    5.555930] power_supply test_battery: prop TECHNOLOGY=Li-ion
[    5.556538] power_supply test_battery: prop CHARGE_FULL_DESIGN=100
[    5.557108] power_supply test_battery: prop CHARGE_FULL=100
[    5.557616] power_supply test_battery: prop CHARGE_NOW=50
[    5.558184] power_supply test_battery: prop CAPACITY=50
[    5.558668] power_supply test_battery: prop CAPACITY_LEVEL=Normal
[    5.559303] power_supply test_battery: prop TIME_TO_EMPTY_AVG=3600
[    5.559863] power_supply test_battery: prop TIME_TO_FULL_NOW=3600
[    5.560511] power_supply test_battery: prop MODEL_NAME=Test battery
[    5.561074] power_supply test_battery: prop MANUFACTURER=Linux
[    5.561615] power_supply test_battery: prop SERIAL_NUMBER=3.6.0-rc6-next-20120918-08732-g3de9d1a
[    5.562489] power_supply test_battery: prop TEMP=26
[    5.562935] power_supply test_battery: prop VOLTAGE_NOW=3300
[    5.563535] power_supply test_usb: power_supply_changed_work
[    5.564049] power_supply test_usb: power_supply_update_gen_leds 1
[    5.564722] power_supply test_usb: uevent
[    5.565100] power_supply test_usb: POWER_SUPPLY_NAME=test_usb
[    5.565627] power_supply test_usb: prop ONLINE=1

[    5.566864] bus: 'usb': add driver vub300
[    5.567662] usbcore: registered new interface driver vub300
[    5.568241] bus: 'usb': add driver ushc
[    5.568652] usbcore: registered new interface driver ushc
[    5.569145] bus: 'platform': add driver leds-gpio
[    5.569634] bus: 'platform': add driver leds-regulator
[    5.570515] bus: 'platform': add driver leds-lt3593
[    5.571061] ledtrig-cpu: registered to indicate activity on CPUs
[    5.571617] device class 'infiniband': registering
[    5.573712] device class 'infiniband_cm': registering
[    5.577016] device class 'infiniband_verbs': registering
[    5.577684] device: 'rdma_cm': device_add
[    5.578981] PM: Adding info for No Bus:rdma_cm
[    5.579443] rdma_ucm: couldn't register sysctl paths
[    5.579922] device: 'rdma_cm': device_unregister
[    5.580437] PM: Removing info for No Bus:rdma_cm
[    5.581293] device: 'rdma_cm': device_create_release
[    5.581756] device class 'ipath': registering
[    5.583276] bus: 'pci': add driver ib_qib
[    5.586948] device class 'infiniband_srp': registering
[    5.588241] device: 'iser': device_add
[    5.588610] PM: Adding info for No Bus:iser
[    5.589002] iscsi: registered transport (iser)
[    5.589577] Registering platform device 'dell_rbu'. Parent at platform
[    5.590212] device: 'dell_rbu': device_add
[    5.590592] bus: 'platform': add device dell_rbu
[    5.591017] PM: Adding info for platform:dell_rbu
[    5.591827] bus: 'hid': registered
[    5.592248] bus: 'hid': add driver hid-generic
[    5.592668] bus: 'hid': add driver a4tech
[    5.593304] bus: 'hid': add driver belkin
[    5.593691] bus: 'hid': add driver cherry
[    5.594395] bus: 'hid': add driver cypress
[    5.594793] bus: 'hid': add driver hkems
[    5.595171] bus: 'hid': add driver ezkey
[    5.595788] bus: 'hid': add driver holtek_kbd
[    5.596287] bus: 'hid': add driver holtek
[    5.596671] bus: 'hid': add driver kensington
[    5.597332] bus: 'hid': add driver keytouch
[    5.597735] bus: 'hid': add driver kye
[    5.598374] bus: 'hid': add driver lenovo_tpkbd
[    5.598807] bus: 'hid': add driver hid-multitouch
[    5.599253] bus: 'hid': add driver ntrig
[    5.599876] bus: 'hid': add driver pantherlord
[    5.600402] bus: 'hid': add driver petalynx
[    5.600798] bus: 'hid': add driver primax
[    5.601430] device class 'arvo': registering
[    5.601830] bus: 'hid': add driver arvo
[    5.602282] device class 'isku': registering
[    5.602679] bus: 'hid': add driver isku
[    5.603299] device class 'kone': registering
[    5.603700] bus: 'hid': add driver kone
[    5.604066] device class 'koneplus': registering
[    5.604752] bus: 'hid': add driver koneplus
[    5.605436] device class 'kovaplus': registering
[    5.605868] bus: 'hid': add driver kovaplus
[    5.606348] device class 'pyra': registering
[    5.606748] bus: 'hid': add driver pyra
[    5.607370] device class 'savu': registering
[    5.607772] bus: 'hid': add driver savu
[    5.608221] bus: 'hid': add driver speedlink
[    5.608880] bus: 'hid': add driver sunplus
[    5.609279] bus: 'hid': add driver greenasia
[    5.609681] bus: 'hid': add driver thrustmaster
[    5.610452] bus: 'hid': add driver topseed
[    5.610848] bus: 'hid': add driver twinhan
[    5.611251] bus: 'hid': add driver zeroplus
[    5.611897] bus: 'hid': add driver waltop
[    5.612363] bus: 'hid': add driver hid-sensor-hub
[    5.613055] bus: 'usb': add driver usbhid
[    5.613454] usbcore: registered new interface driver usbhid
[    5.613950] usbhid: USB HID core driver
[    5.614378] bus: 'platform': add driver asus_laptop
[    5.614834] bus: 'acpi': add driver Asus Laptop Support
[    5.615609] bus: 'acpi': remove driver Asus Laptop Support
[    5.616191] driver: 'Asus Laptop Support': driver_release
[    5.616689] bus: 'platform': remove driver asus_laptop
[    5.617163] driver: 'asus_laptop': driver_release
[    5.617590] bus: 'platform': add driver eeepc
[    5.618004] bus: 'acpi': add driver Eee PC Hotkey Driver
[    5.618847] bus: 'acpi': remove driver Eee PC Hotkey Driver
[    5.619366] driver: 'Eee PC Hotkey Driver': driver_release
[    5.619867] bus: 'platform': remove driver eeepc
[    5.620333] driver: 'eeepc': driver_release
[    5.620711] hdaps: supported laptop not found!
[    5.621114] hdaps: driver init failed (ret=-19)!
[    5.621522] bus: 'acpi': add driver Panasonic Laptop Support
[    5.622063] bus: 'acpi': add driver Toshiba BT
[    5.622830] bus: 'pci': add driver intel ips
[    5.623261] bus: 'acpi': add driver xo15-ebook
[    5.623702] bus: 'pnp': add driver apple-gmux
[    5.624397] hv_utils: Registering HyperV Utility Driver
[    5.624866] hv_vmbus: registering driver hv_util
[    5.625286] bus: 'platform': add driver HID-SENSOR-200073
[    5.625788] bus: 'platform': add driver HID-SENSOR-200041
[    5.626378] bus: 'platform': add driver HID-SENSOR-200083
[    5.627330] bus: 'vme': registered
[    5.627653] bus: 'pci': add driver vme_tsi148
[    5.628855] NET: Registered protocol family 26
[    5.629291] Netfilter messages via NETLINK v0.30.
[    5.630176] nf_conntrack version 0.5.0 (1434 buckets, 5736 max)
[    5.630819] IPVS: Registered protocols (UDP, SCTP, AH, ESP)
[    5.631342] IPVS: Connection hash table configured (size=4096, memory=64Kbytes)
[    5.632058] IPVS: Creating netns size=2264 id=0
[    5.632606] IPVS: ipvs loaded.
[    5.632897] IPVS: [rr] scheduler registered.
[    5.633285] IPVS: [wrr] scheduler registered.
[    5.633674] IPVS: [lc] scheduler registered.
[    5.634058] IPVS: [lblc] scheduler registered.
[    5.634534] IPVS: [lblcr] scheduler registered.
[    5.634940] IPVS: [sh] scheduler registered.
[    5.635327] IPVS: [nq] scheduler registered.
[    5.635710] IPv4 over IPv4 tunneling driver
[    5.636247] device: 'tunl0': device_add
[    5.637530] PM: Adding info for No Bus:tunl0
[    5.638520] IPv4 over IPSec tunneling driver
[    5.638987] device: 'ip_vti0': device_add
[    5.640319] PM: Adding info for No Bus:ip_vti0
[    5.641339] ip_tables: (C) 2000-2006 Netfilter Core Team
[    5.642558] TCP: bic registered
[    5.642853] TCP: cubic registered
[    5.643160] TCP: highspeed registered
[    5.643493] TCP: lp registered
[    5.643769] Initializing XFRM netlink socket
[    5.644568] bus: 'platform': add driver dsa
[    5.645298] NET: Registered protocol family 4
[    5.645728] NET: Registered protocol family 3
[    5.646206] can: controller area network core (rev 20120528 abi 9)
[    5.646770] can: failed to create /proc/net/can . CONFIG_PROC_FS missing?
[    5.647380] NET: Registered protocol family 29
[    5.647790] IrCOMM protocol (Dag Brattli)
[    5.648309] device: 'ircomm0': device_add
[    5.648987] PM: Adding info for No Bus:ircomm0
[    5.649968] device: 'ircomm1': device_add
[    5.650636] PM: Adding info for No Bus:ircomm1
[    5.651157] device: 'ircomm2': device_add
[    5.652152] PM: Adding info for No Bus:ircomm2
[    5.652900] device: 'ircomm3': device_add
[    5.653506] PM: Adding info for No Bus:ircomm3
[    5.654281] device: 'ircomm4': device_add
[    5.655259] PM: Adding info for No Bus:ircomm4
[    5.655997] device: 'ircomm5': device_add
[    5.656677] PM: Adding info for No Bus:ircomm5
[    5.657215] device: 'ircomm6': device_add
[    5.658171] PM: Adding info for No Bus:ircomm6
[    5.659148] device: 'ircomm7': device_add
[    5.659760] PM: Adding info for No Bus:ircomm7
[    5.660404] device: 'ircomm8': device_add
[    5.661434] PM: Adding info for No Bus:ircomm8
[    5.662154] device: 'ircomm9': device_add
[    5.662747] PM: Adding info for No Bus:ircomm9
[    5.663534] device: 'ircomm10': device_add
[    5.664549] PM: Adding info for No Bus:ircomm10
[    5.665372] device: 'ircomm11': device_add
[    5.665975] PM: Adding info for No Bus:ircomm11
[    5.666520] device: 'ircomm12': device_add
[    5.667559] PM: Adding info for No Bus:ircomm12
[    5.668557] device: 'ircomm13': device_add
[    5.669206] PM: Adding info for No Bus:ircomm13
[    5.669757] device: 'ircomm14': device_add
[    5.670746] PM: Adding info for No Bus:ircomm14
[    5.671545] device: 'ircomm15': device_add
[    5.672193] PM: Adding info for No Bus:ircomm15
[    5.672907] device: 'ircomm16': device_add
[    5.673955] PM: Adding info for No Bus:ircomm16
[    5.674707] device: 'ircomm17': device_add
[    5.675373] PM: Adding info for No Bus:ircomm17
[    5.675900] device: 'ircomm18': device_add
[    5.676942] PM: Adding info for No Bus:ircomm18
[    5.677937] device: 'ircomm19': device_add
[    5.678464] PM: Adding info for No Bus:ircomm19
[    5.678966] device: 'ircomm20': device_add
[    5.679881] PM: Adding info for No Bus:ircomm20
[    5.680676] device: 'ircomm21': device_add
[    5.681223] PM: Adding info for No Bus:ircomm21
[    5.681892] device: 'ircomm22': device_add
[    5.682746] PM: Adding info for No Bus:ircomm22
[    5.683551] device: 'ircomm23': device_add
[    5.684068] PM: Adding info for No Bus:ircomm23
[    5.684593] device: 'ircomm24': device_add
[    5.685462] PM: Adding info for No Bus:ircomm24
[    5.686372] device: 'ircomm25': device_add
[    5.686895] PM: Adding info for No Bus:ircomm25
[    5.687476] device: 'ircomm26': device_add
[    5.688352] PM: Adding info for No Bus:ircomm26
[    5.689053] device: 'ircomm27': device_add
[    5.689661] PM: Adding info for No Bus:ircomm27
[    5.690361] device: 'ircomm28': device_add
[    5.691239] PM: Adding info for No Bus:ircomm28
[    5.691985] device: 'ircomm29': device_add
[    5.692495] PM: Adding info for No Bus:ircomm29
[    5.692989] device: 'ircomm30': device_add
[    5.693902] PM: Adding info for No Bus:ircomm30
[    5.694816] device: 'ircomm31': device_add
[    5.695416] PM: Adding info for No Bus:ircomm31
[    5.695996] RPC: Registered rdma transport module.
[    5.696544] NET: Registered protocol family 33
[    5.696943] Key type rxrpc registered
[    5.697355] Key type rxrpc_s registered
[    5.698252] RxRPC: Registered security type 2 'rxkad'
[    5.698759] l2tp_core: L2TP core driver, V2.0
[    5.699571] l2tp_debugfs: L2TP debugfs support
[    5.700236] sctp: Hash tables configured (established 819 bind 819)
[    5.701259] 9pnet: Installing 9P2000 support
[    5.701667] bus: 'virtio': add driver 9pnet_virtio
[    5.702560] NET: Registered protocol family 37
[    5.703010] Key type dns_resolver registered
[    5.703803] Key type ceph registered
[    5.704220] libceph: loaded (mon/osd proto 15/24, osdmap 5/6 5/6)
[    5.705770] batman_adv: B.A.T.M.A.N. advanced 2012.4.0 (compatibility version 14) loaded
[    5.707372] 
[    5.707372] printing PIC contents
[    5.707810] ... PIC  IMR: ffff
[    5.708164] ... PIC  IRR: 1153
[    5.708449] ... PIC  ISR: 0000
[    5.708725] ... PIC ELCR: 0c00
[    5.709052] printing local APIC contents on CPU#0/0:
[    5.709537] ... APIC ID:      00000000 (0)
[    5.709914] ... APIC VERSION: 00050014
[    5.710267] ... APIC TASKPRI: 00000000 (00)
[    5.710650] ... APIC PROCPRI: 00000000
[    5.710995] ... APIC LDR: 01000000
[    5.711315] ... APIC DFR: ffffffff
[    5.711630] ... APIC SPIV: 000001ff
[    5.711950] ... APIC ISR field:
[    5.712250] 0000000000000000000000000000000000000000000000000000000000000000
[    5.713018] ... APIC TMR field:
[    5.713318] 0000000000000000000000000000000000000000000000000000000000000000
[    5.714087] ... APIC IRR field:
[    5.714381] 0000000000000000000000000000000000000000000000000000000020000000
[    5.715152] ... APIC ESR: 00000000
[    5.715467] ... APIC ICR: 000008fd
[    5.715779] ... APIC ICR2: 02000000
[    5.716105] ... APIC LVTT: 000000ef
[    5.716426] ... APIC LVTPC: 00010000
[    5.716754] ... APIC LVT0: 00010700
[    5.717076] ... APIC LVT1: 00000400
[    5.717398] ... APIC LVTERR: 000000fe
[    5.717735] ... APIC TMICT: 17af3ba4
[    5.718068] ... APIC TMCCT: 17a306ec
[    5.718399] ... APIC TDCR: 00000003
[    5.718718] 
[    5.718881] number of MP IRQ sources: 15.
[    5.719324] number of IO-APIC #2 registers: 24.
[    5.719722] testing the IO APIC.......................
[    5.720274] IO APIC #2......
[    5.720534] .... register #00: 00000000
[    5.720872] .......    : physical APIC id: 00
[    5.721340] .......    : Delivery Type: 0
[    5.721694] .......    : LTS          : 0
[    5.722050] .... register #01: 00170011
[    5.722396] .......     : max redirection entries: 17
[    5.722841] .......     : PRQ implemented: 0
[    5.723297] .......     : IO APIC version: 11
[    5.723681] .... register #02: 00000000
[    5.724022] .......     : arbitration: 00
[    5.724455] .... IRQ redirection table:
[    5.724795]  NR Dst Mask Trig IRR Pol Stat Dmod Deli Vect:
[    5.725365]  00 00  1    0    0   0   0    0    0    00
[    5.725847]  01 03  0    0    0   0   0    1    1    31
[    5.726334]  02 03  0    0    0   0   0    1    1    30
[    5.726815]  03 03  1    0    0   0   0    1    1    33
[    5.727377]  04 03  1    0    0   0   0    1    1    34
[    5.727858]  05 03  1    1    0   0   0    1    1    35
[    5.728418]  06 03  0    0    0   0   0    1    1    36
[    5.728899]  07 03  1    0    0   0   0    1    1    37
[    5.729464]  08 03  0    0    0   0   0    1    1    38
[    5.729946]  09 03  0    1    0   0   0    1    1    39
[    5.730461]  0a 03  1    1    0   0   0    1    1    3A
[    5.730947]  0b 03  1    1    0   0   0    1    1    3B
[    5.731513]  0c 03  0    0    0   0   0    1    1    3C
[    5.732000]  0d 03  1    0    0   0   0    1    1    3D
[    5.732563]  0e 03  0    0    0   0   0    1    1    3E
[    5.733057]  0f 03  0    0    0   0   0    1    1    3F
[    5.733617]  10 00  1    0    0   0   0    0    0    00
[    5.734106]  11 00  1    0    0   0   0    0    0    00
[    5.734589]  12 00  1    0    0   0   0    0    0    00
[    5.735137]  13 00  1    0    0   0   0    0    0    00
[    5.735636]  14 00  1    0    0   0   0    0    0    00
[    5.736199]  15 00  1    0    0   0   0    0    0    00
[    5.736698]  16 00  1    0    0   0   0    0    0    00
[    5.737259]  17 00  1    0    0   0   0    0    0    00
[    5.737735] IRQ to pin mappings:
[    5.738025] IRQ0 -> 0:2
[    5.738278] IRQ1 -> 0:1
[    5.738528] IRQ3 -> 0:3
[    5.738777] IRQ4 -> 0:4
[    5.739027] IRQ5 -> 0:5
[    5.739359] IRQ6 -> 0:6
[    5.739609] IRQ7 -> 0:7
[    5.739858] IRQ8 -> 0:8
[    5.740182] IRQ9 -> 0:9
[    5.740432] IRQ10 -> 0:10
[    5.740696] IRQ11 -> 0:11
[    5.740960] IRQ12 -> 0:12
[    5.741301] IRQ13 -> 0:13
[    5.741565] IRQ14 -> 0:14
[    5.741829] IRQ15 -> 0:15
[    5.742097] .................................... done.
[    5.743492] device: 'cpu_dma_latency': device_add
[    5.744075] PM: Adding info for No Bus:cpu_dma_latency
[    5.744663] device: 'network_latency': device_add
[    5.745714] PM: Adding info for No Bus:network_latency
[    5.746504] device: 'network_throughput': device_add
[    5.747132] PM: Adding info for No Bus:network_throughput
[    5.748568] Key type encrypted registered
[    5.749556] IMA: No TPM chip found, activating TPM-bypass!
[    5.753710] device class 'ubi': registering
[    5.754405] device: 'ubi_ctrl': device_add
[    5.755619] PM: Adding info for No Bus:ubi_ctrl
[    5.756439] console [netcon0] enabled
[    5.756779] netconsole: network logging started
[    5.758663] debug: unmapping init [mem 0xffffffff825e4000-0xffffffff8286bfff]
[    5.813510] mount (146) used greatest stack depth: 5280 bytes left
/bin/sh: /proc/self/fd/9: No such file or directory
/bin/sh: /proc/self/fd/9: No such file or directory
[    5.876425] sh (162) used greatest stack depth: 4800 bytes left
/bin/sh: /proc/self/fd/9: No such file or directory
[   20.196199] trinity-child0 (165): Using mlock ulimits for SHM_HUGETLB is deprecated
[   20.202010] warning: process `trinity-child1' used the deprecated sysctl system call with 
[   32.425603] trinity-child0 (171) used greatest stack depth: 4560 bytes left
[   38.482925] scsi_nl_rcv_msg: discarding partial skb
[   62.679879] ------------[ cut here ]------------
[   62.680380] WARNING: at /c/kernel-tests/src/linux/mm/interval_tree.c:109 anon_vma_interval_tree_verify+0x33/0x80()
[   62.681356] Pid: 195, comm: trinity-child0 Not tainted 3.6.0-rc6-next-20120918-08732-g3de9d1a #1
[   62.682130] Call Trace:
[   62.682356]  [<ffffffff810c249f>] ? anon_vma_interval_tree_verify+0x33/0x80
[   62.682968]  [<ffffffff81044356>] warn_slowpath_common+0x5d/0x74
[   62.683577]  [<ffffffff81044424>] warn_slowpath_null+0x15/0x19
[   62.684098]  [<ffffffff810c249f>] anon_vma_interval_tree_verify+0x33/0x80
[   62.684714]  [<ffffffff810ca57c>] validate_mm+0x32/0x15b
[   62.685202]  [<ffffffff810ca767>] vma_link+0x95/0xa4
[   62.685637]  [<ffffffff810cbc31>] copy_vma+0x1c7/0x1fe
[   62.686168]  [<ffffffff810cdd50>] move_vma+0x90/0x1ef
[   62.686614]  [<ffffffff810ce250>] sys_mremap+0x3a1/0x429
[   62.687094]  [<ffffffff813caafe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[   62.687670]  [<ffffffff81b505b9>] system_call_fastpath+0x16/0x1b
[   62.688267] ---[ end trace 8a8dcc9932b93523 ]---
[   62.688670] ------------[ cut here ]------------
[   62.689082] WARNING: at /c/kernel-tests/src/linux/mm/interval_tree.c:110 anon_vma_interval_tree_verify+0x75/0x80()
[   62.689988] Pid: 195, comm: trinity-child0 Tainted: G        W    3.6.0-rc6-next-20120918-08732-g3de9d1a #1
[   62.690941] Call Trace:
[   62.691187]  [<ffffffff810c24e1>] ? anon_vma_interval_tree_verify+0x75/0x80
[   62.691801]  [<ffffffff81044356>] warn_slowpath_common+0x5d/0x74
[   62.692403]  [<ffffffff81044424>] warn_slowpath_null+0x15/0x19
[   62.692913]  [<ffffffff810c24e1>] anon_vma_interval_tree_verify+0x75/0x80
[   62.693578]  [<ffffffff810ca57c>] validate_mm+0x32/0x15b
[   62.694110]  [<ffffffff810ca767>] vma_link+0x95/0xa4
[   62.694549]  [<ffffffff810cbc31>] copy_vma+0x1c7/0x1fe
[   62.695007]  [<ffffffff810cdd50>] move_vma+0x90/0x1ef
[   62.695534]  [<ffffffff810ce250>] sys_mremap+0x3a1/0x429
[   62.696001]  [<ffffffff813caafe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[   62.696645]  [<ffffffff81b505b9>] system_call_fastpath+0x16/0x1b
[   62.697242] ---[ end trace 8a8dcc9932b93524 ]---

[-- Attachment #3: config-3.6.0-rc6-next-20120918-08732-g3de9d1a --]
[-- Type: text/plain, Size: 74857 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 3.6.0-rc6 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_GPIO=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_DEFAULT_IDLE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CPU_AUTOPROBE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
CONFIG_ARCH_CPU_PROBE_RELEASE=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
CONFIG_KERNEL_LZMA=y
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_POSIX_MQUEUE is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_FHANDLE=y
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
# CONFIG_HIGH_RES_TIMERS is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_USER_QS is not set
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
CONFIG_RCU_FAST_NO_HZ=y
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_CHECKPOINT_RESTORE=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_PID_NS is not set
CONFIG_NET_NS=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
# CONFIG_RD_XZ is not set
# CONFIG_RD_LZO is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_ANON_INODES=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_BASE_FULL is not set
CONFIG_FUTEX=y
# CONFIG_EPOLL is not set
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
# CONFIG_EVENTFD is not set
# CONFIG_SHMEM is not set
# CONFIG_AIO is not set
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# CONFIG_VM_EVENT_COUNTERS is not set
CONFIG_PCI_QUIRKS=y
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
# CONFIG_SLUB is not set
CONFIG_SLOB=y
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
# CONFIG_JUMP_LABEL is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_RCU_USER_QS=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=1
# CONFIG_MODULES is not set
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_AMIGA_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
CONFIG_PADATA=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_FREEZER=y

#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
# CONFIG_X86_X2APIC is not set
# CONFIG_X86_MPPARSE is not set
CONFIG_X86_EXTENDED_PLATFORM=y
CONFIG_X86_VSMP=y
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_KVMTOOL_TEST_ENABLE=y
CONFIG_PARAVIRT_GUEST=y
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=500
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
CONFIG_KVM_GUEST=y
CONFIG_PARAVIRT=y
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_PARAVIRT_CLOCK=y
CONFIG_PARAVIRT_DEBUG=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=12
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_XADD=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_PROCESSOR_SELECT=y
# CONFIG_CPU_SUP_INTEL is not set
# CONFIG_CPU_SUP_AMD is not set
# CONFIG_CPU_SUP_CENTAUR is not set
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
# CONFIG_DMI is not set
# CONFIG_CALGARY_IOMMU is not set
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_MAXSMP=y
CONFIG_NR_CPUS=4096
# CONFIG_SCHED_SMT is not set
CONFIG_SCHED_MC=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
# CONFIG_X86_MCE_INTEL is not set
# CONFIG_X86_MCE_AMD is not set
CONFIG_X86_MCE_INJECT=y
CONFIG_I8K=y
CONFIG_MICROCODE=y
# CONFIG_MICROCODE_INTEL is not set
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
CONFIG_NUMA=y
# CONFIG_AMD_NUMA is not set
# CONFIG_X86_64_ACPI_NUMA is not set
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
# CONFIG_EFI is not set
CONFIG_SECCOMP=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
CONFIG_COMPAT_VDSO=y
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
# CONFIG_SUSPEND is not set
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_AUTOSLEEP=y
# CONFIG_PM_WAKELOCKS is not set
# CONFIG_PM_RUNTIME is not set
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
# CONFIG_ACPI_BATTERY is not set
CONFIG_ACPI_BUTTON=y
# CONFIG_ACPI_VIDEO is not set
# CONFIG_ACPI_FAN is not set
CONFIG_ACPI_DOCK=y
# CONFIG_ACPI_PROCESSOR is not set
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
CONFIG_ACPI_DEBUG=y
# CONFIG_ACPI_DEBUG_FUNC_TRACE is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_X86_PM_TIMER=y
# CONFIG_ACPI_CONTAINER is not set
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
CONFIG_ACPI_APEI=y
# CONFIG_ACPI_APEI_GHES is not set
# CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
# CONFIG_ACPI_APEI_EINJ is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
CONFIG_SFI=y

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set

#
# Memory power savings
#
# CONFIG_I7300_IDLE is not set

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
# CONFIG_PCI_MMCONFIG is not set
CONFIG_PCI_XEN=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_CNB20LE_QUIRK=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
CONFIG_PCI_DEBUG=y
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
CONFIG_XEN_PCIDEV_FRONTEND=y
# CONFIG_HT_IRQ is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_IOAPIC=y
CONFIG_PCI_LABEL=y
CONFIG_ISA_DMA_API=y
CONFIG_PCCARD=y
# CONFIG_PCMCIA is not set
# CONFIG_CARDBUS is not set

#
# PC-card bridges
#
# CONFIG_YENTA is not set
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=y
CONFIG_HOTPLUG_PCI_CPCI=y
CONFIG_HOTPLUG_PCI_CPCI_ZT5550=y
# CONFIG_HOTPLUG_PCI_CPCI_GENERIC is not set
CONFIG_HOTPLUG_PCI_SHPC=y
CONFIG_RAPIDIO=y
CONFIG_RAPIDIO_DISC_TIMEOUT=30
# CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS is not set
CONFIG_RAPIDIO_DMA_ENGINE=y
# CONFIG_RAPIDIO_DEBUG is not set
CONFIG_RAPIDIO_TSI57X=y
CONFIG_RAPIDIO_CPS_XX=y
CONFIG_RAPIDIO_TSI568=y
CONFIG_RAPIDIO_CPS_GEN2=y
# CONFIG_RAPIDIO_TSI500 is not set

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
# CONFIG_COREDUMP is not set
CONFIG_IA32_EMULATION=y
CONFIG_IA32_AOUT=y
# CONFIG_X86_X32 is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_KEYS_COMPAT=y
CONFIG_HAVE_TEXT_POKE_SMP=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y

#
# Networking options
#
# CONFIG_PACKET is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=y
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_IP_MROUTE=y
# CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
CONFIG_IP_PIMSM_V1=y
# CONFIG_IP_PIMSM_V2 is not set
CONFIG_ARPD=y
# CONFIG_SYN_COOKIES is not set
CONFIG_NET_IPVTI=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_INET_UDP_DIAG=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=y
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
CONFIG_TCP_CONG_HSTCP=y
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_SCALABLE is not set
CONFIG_TCP_CONG_LP=y
# CONFIG_TCP_CONG_VENO is not set
# CONFIG_TCP_CONG_YEAH is not set
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_DEFAULT_BIC is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
CONFIG_NETLABEL=y
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
# CONFIG_NETFILTER_ADVANCED is not set

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_NETLINK_LOG=y
CONFIG_NF_CONNTRACK=y
# CONFIG_NF_CONNTRACK_FTP is not set
# CONFIG_NF_CONNTRACK_IRC is not set
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
# CONFIG_NF_CONNTRACK_SIP is not set
# CONFIG_NF_CT_NETLINK is not set
CONFIG_NETFILTER_XTABLES=y

#
# Xtables combined modules
#
# CONFIG_NETFILTER_XT_MARK is not set

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_LOG=y
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
CONFIG_NETFILTER_XT_TARGET_TCPMSS=y

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
# CONFIG_NETFILTER_XT_MATCH_STATE is not set
# CONFIG_IP_SET is not set
CONFIG_IP_VS=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
# CONFIG_IP_VS_PROTO_TCP is not set
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=y
CONFIG_IP_VS_WRR=y
CONFIG_IP_VS_LC=y
# CONFIG_IP_VS_WLC is not set
CONFIG_IP_VS_LBLC=y
CONFIG_IP_VS_LBLCR=y
# CONFIG_IP_VS_DH is not set
CONFIG_IP_VS_SH=y
# CONFIG_IP_VS_SED is not set
CONFIG_IP_VS_NQ=y

#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8

#
# IPVS application helper
#
# CONFIG_IP_VS_NFCT is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=y
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_IP_NF_IPTABLES=y
# CONFIG_IP_NF_FILTER is not set
CONFIG_IP_NF_TARGET_ULOG=y
# CONFIG_NF_NAT_IPV4 is not set
CONFIG_IP_NF_MANGLE=y
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=y
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
CONFIG_L2TP=y
CONFIG_L2TP_DEBUGFS=y
# CONFIG_L2TP_V3 is not set
# CONFIG_BRIDGE is not set
CONFIG_NET_DSA=y
# CONFIG_NET_DSA_TAG_DSA is not set
CONFIG_NET_DSA_TAG_EDSA=y
CONFIG_NET_DSA_TAG_TRAILER=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
CONFIG_LLC=y
CONFIG_LLC2=y
CONFIG_IPX=y
CONFIG_IPX_INTERN=y
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
CONFIG_LAPB=y
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=y
CONFIG_BATMAN_ADV=y
CONFIG_BATMAN_ADV_BLA=y
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_OPENVSWITCH is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
CONFIG_BQL=y

#
# Network testing
#
CONFIG_HAMRADIO=y

#
# Packet Radio protocols
#
CONFIG_AX25=y
# CONFIG_AX25_DAMA_SLAVE is not set
# CONFIG_NETROM is not set
# CONFIG_ROSE is not set

#
# AX.25 network device drivers
#
CONFIG_MKISS=y
# CONFIG_6PACK is not set
# CONFIG_BPQETHER is not set
CONFIG_BAYCOM_SER_FDX=y
CONFIG_BAYCOM_SER_HDX=y
# CONFIG_YAM is not set
CONFIG_CAN=y
# CONFIG_CAN_RAW is not set
# CONFIG_CAN_BCM is not set
# CONFIG_CAN_GW is not set

#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=y
CONFIG_CAN_SLCAN=y
CONFIG_CAN_DEV=y
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_PCH_CAN is not set
CONFIG_CAN_SJA1000=y
CONFIG_CAN_SJA1000_ISA=y
# CONFIG_CAN_SJA1000_PLATFORM is not set
# CONFIG_CAN_EMS_PCI is not set
# CONFIG_CAN_PEAK_PCI is not set
CONFIG_CAN_KVASER_PCI=y
CONFIG_CAN_PLX_PCI=y
CONFIG_CAN_C_CAN=y
# CONFIG_CAN_C_CAN_PLATFORM is not set
# CONFIG_CAN_C_CAN_PCI is not set
CONFIG_CAN_CC770=y
# CONFIG_CAN_CC770_ISA is not set
# CONFIG_CAN_CC770_PLATFORM is not set

#
# CAN USB interfaces
#
CONFIG_CAN_EMS_USB=y
# CONFIG_CAN_ESD_USB2 is not set
CONFIG_CAN_PEAK_USB=y
CONFIG_CAN_SOFTING=y
# CONFIG_CAN_DEBUG_DEVICES is not set
CONFIG_IRDA=y

#
# IrDA protocols
#
# CONFIG_IRLAN is not set
CONFIG_IRCOMM=y
# CONFIG_IRDA_ULTRA is not set

#
# IrDA options
#
CONFIG_IRDA_CACHE_LAST_LSAP=y
CONFIG_IRDA_FAST_RR=y
# CONFIG_IRDA_DEBUG is not set

#
# Infrared-port device drivers
#

#
# SIR device drivers
#
CONFIG_IRTTY_SIR=y

#
# Dongle support
#
CONFIG_DONGLE=y
CONFIG_ESI_DONGLE=y
# CONFIG_ACTISYS_DONGLE is not set
# CONFIG_TEKRAM_DONGLE is not set
# CONFIG_TOIM3232_DONGLE is not set
# CONFIG_LITELINK_DONGLE is not set
# CONFIG_MA600_DONGLE is not set
# CONFIG_GIRBIL_DONGLE is not set
# CONFIG_MCP2120_DONGLE is not set
CONFIG_OLD_BELKIN_DONGLE=y
# CONFIG_ACT200L_DONGLE is not set
CONFIG_KINGSUN_DONGLE=y
CONFIG_KSDAZZLE_DONGLE=y
# CONFIG_KS959_DONGLE is not set

#
# FIR device drivers
#
# CONFIG_USB_IRDA is not set
# CONFIG_SIGMATEL_FIR is not set
CONFIG_NSC_FIR=y
CONFIG_WINBOND_FIR=y
# CONFIG_SMC_IRCC_FIR is not set
# CONFIG_ALI_FIR is not set
CONFIG_VLSI_FIR=y
CONFIG_VIA_FIR=y
# CONFIG_MCS_FIR is not set
# CONFIG_BT is not set
CONFIG_AF_RXRPC=y
CONFIG_AF_RXRPC_DEBUG=y
CONFIG_RXKAD=y
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
# CONFIG_CFG80211 is not set
# CONFIG_LIB80211 is not set

#
# CFG80211 needs to be enabled for MAC80211
#
CONFIG_WIMAX=y
CONFIG_WIMAX_DEBUG_LEVEL=8
# CONFIG_RFKILL is not set
CONFIG_RFKILL_REGULATOR=y
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_RDMA is not set
# CONFIG_NET_9P_DEBUG is not set
CONFIG_CAIF=y
CONFIG_CAIF_DEBUG=y
# CONFIG_CAIF_NETDEV is not set
# CONFIG_CAIF_USB is not set
CONFIG_CEPH_LIB=y
CONFIG_CEPH_LIB_PRETTYDEBUG=y
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
CONFIG_NFC=y
CONFIG_NFC_NCI=y
# CONFIG_NFC_HCI is not set
# CONFIG_NFC_LLCP is not set

#
# Near Field Communication (NFC) devices
#
CONFIG_NFC_PN533=y
# CONFIG_NFC_WILINK is not set
CONFIG_HAVE_BPF_JIT=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_DEBUG_DRIVER=y
CONFIG_DEBUG_DEVRES=y
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
CONFIG_OMAP_OCP2SCP=y
CONFIG_CONNECTOR=y
# CONFIG_PROC_EVENTS is not set
CONFIG_MTD=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
# CONFIG_MTD_CMDLINE_PARTS is not set
CONFIG_MTD_AR7_PARTS=y

#
# User Modules And Translation Layers
#
# CONFIG_MTD_CHAR is not set
CONFIG_HAVE_MTD_OTP=y
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
CONFIG_NFTL=y
# CONFIG_NFTL_RW is not set
# CONFIG_INFTL is not set
# CONFIG_RFD_FTL is not set
CONFIG_SSFDC=y
CONFIG_SM_FTL=y
# CONFIG_MTD_OOPS is not set
# CONFIG_MTD_SWAP is not set

#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_GEN_PROBE=y
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
CONFIG_MTD_CFI_INTELEXT=y
# CONFIG_MTD_CFI_AMDSTD is not set
# CONFIG_MTD_CFI_STAA is not set
CONFIG_MTD_CFI_UTIL=y
# CONFIG_MTD_RAM is not set
CONFIG_MTD_ROM=y
CONFIG_MTD_ABSENT=y

#
# Mapping drivers for chip access
#
CONFIG_MTD_COMPLEX_MAPPINGS=y
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_SC520CDP is not set
# CONFIG_MTD_NETSC520 is not set
# CONFIG_MTD_TS5500 is not set
CONFIG_MTD_SBC_GXX=y
CONFIG_MTD_AMD76XROM=y
# CONFIG_MTD_ICHXROM is not set
CONFIG_MTD_ESB2ROM=y
CONFIG_MTD_CK804XROM=y
# CONFIG_MTD_SCB2_FLASH is not set
# CONFIG_MTD_NETtel is not set
CONFIG_MTD_L440GX=y
CONFIG_MTD_PCI=y
CONFIG_MTD_GPIO_ADDR=y
# CONFIG_MTD_INTEL_VR_NOR is not set
# CONFIG_MTD_PLATRAM is not set
# CONFIG_MTD_LATCH_ADDR is not set

#
# Self-contained MTD device drivers
#
CONFIG_MTD_PMC551=y
# CONFIG_MTD_PMC551_BUGFIX is not set
# CONFIG_MTD_PMC551_DEBUG is not set
CONFIG_MTD_SLRAM=y
CONFIG_MTD_PHRAM=y
# CONFIG_MTD_MTDRAM is not set
CONFIG_MTD_BLOCK2MTD=y

#
# Disk-On-Chip Device Drivers
#
CONFIG_MTD_DOCG3=y
CONFIG_BCH_CONST_M=14
CONFIG_BCH_CONST_T=4
CONFIG_MTD_NAND_ECC=y
CONFIG_MTD_NAND_ECC_SMC=y
# CONFIG_MTD_NAND is not set
CONFIG_MTD_ONENAND=y
CONFIG_MTD_ONENAND_VERIFY_WRITE=y
# CONFIG_MTD_ONENAND_GENERIC is not set
CONFIG_MTD_ONENAND_OTP=y
CONFIG_MTD_ONENAND_2X_PROGRAM=y
CONFIG_MTD_ONENAND_SIM=y

#
# LPDDR flash memory drivers
#
# CONFIG_MTD_LPDDR is not set
CONFIG_MTD_UBI=y
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
# CONFIG_MTD_UBI_GLUEBI is not set
# CONFIG_PARPORT is not set
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_FD=y
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
CONFIG_BLK_CPQ_DA=y
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_CRYPTOLOOP=y

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
CONFIG_BLK_DEV_OSD=y
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_CDROM_PKTCDVD=y
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_CDROM_PKTCDVD_WCACHE=y
CONFIG_ATA_OVER_ETH=y
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_XEN_BLKDEV_BACKEND=y
CONFIG_VIRTIO_BLK=y
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_INTEL_MID_PTI=y
# CONFIG_SGI_IOC4 is not set
CONFIG_TIFM_CORE=y
# CONFIG_TIFM_7XX1 is not set
CONFIG_ENCLOSURE_SERVICES=y
CONFIG_HP_ILO=y
CONFIG_VMWARE_BALLOON=y
CONFIG_PCH_PHUB=y
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_93CX6=y
CONFIG_CB710_CORE=y
CONFIG_CB710_DEBUG=y
CONFIG_CB710_DEBUG_ASSUMPTIONS=y

#
# Texas Instruments shared transport line discipline
#
CONFIG_TI_ST=y

#
# Altera FPGA firmware download module
#
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_TIMINGS=y
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_IDE_GD is not set
# CONFIG_BLK_DEV_IDECD is not set
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEACPI is not set
CONFIG_IDE_TASK_IOCTL=y

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_PLATFORM=y
CONFIG_BLK_DEV_CMD640=y
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
# CONFIG_BLK_DEV_GENERIC is not set
CONFIG_BLK_DEV_OPTI621=y
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_AEC62XX=y
CONFIG_BLK_DEV_ALI15X3=y
CONFIG_BLK_DEV_AMD74XX=y
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
CONFIG_BLK_DEV_HPT366=y
CONFIG_BLK_DEV_JMICRON=y
CONFIG_BLK_DEV_SC1200=y
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
CONFIG_BLK_DEV_SIIMAGE=y
CONFIG_BLK_DEV_SIS5513=y
CONFIG_BLK_DEV_SLC90E66=y
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
CONFIG_BLK_DEV_TC86C001=y
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
CONFIG_SCSI_NETLINK=y

#
# SCSI support type (disk, tape, CD-ROM)
#
# CONFIG_BLK_DEV_SD is not set
CONFIG_CHR_DEV_ST=y
CONFIG_CHR_DEV_OSST=y
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=y
CONFIG_CHR_DEV_SCH=y
CONFIG_SCSI_ENCLOSURE=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=y
CONFIG_SCSI_SAS_ATTRS=y
# CONFIG_SCSI_SAS_LIBSAS is not set
CONFIG_SCSI_SRP_ATTRS=y
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
CONFIG_ISCSI_BOOT_SYSFS=y
# CONFIG_SCSI_CXGB3_ISCSI is not set
CONFIG_SCSI_CXGB4_ISCSI=y
CONFIG_SCSI_BNX2_ISCSI=y
CONFIG_SCSI_BNX2X_FCOE=y
CONFIG_BE2ISCSI=y
CONFIG_BLK_DEV_3W_XXXX_RAID=y
CONFIG_SCSI_HPSA=y
CONFIG_SCSI_3W_9XXX=y
CONFIG_SCSI_3W_SAS=y
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
CONFIG_SCSI_AIC79XX=y
CONFIG_AIC79XX_CMDS_PER_DEVICE=32
CONFIG_AIC79XX_RESET_DELAY_MS=5000
# CONFIG_AIC79XX_BUILD_FIRMWARE is not set
# CONFIG_AIC79XX_DEBUG_ENABLE is not set
CONFIG_AIC79XX_DEBUG_MASK=0
# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
CONFIG_SCSI_DPT_I2O=y
CONFIG_SCSI_ADVANSYS=y
CONFIG_SCSI_ARCMSR=y
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_MPT2SAS=y
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS_LOGGING is not set
# CONFIG_SCSI_UFSHCD is not set
CONFIG_SCSI_HPTIOP=y
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_HYPERV_STORAGE is not set
CONFIG_LIBFC=y
CONFIG_LIBFCOE=y
CONFIG_FCOE=y
CONFIG_FCOE_FNIC=y
CONFIG_SCSI_DMX3191D=y
CONFIG_SCSI_EATA=y
CONFIG_SCSI_EATA_TAGGED_QUEUE=y
CONFIG_SCSI_EATA_LINKED_COMMANDS=y
CONFIG_SCSI_EATA_MAX_TAGS=16
CONFIG_SCSI_FUTURE_DOMAIN=y
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_ISCI is not set
CONFIG_SCSI_IPS=y
# CONFIG_SCSI_INITIO is not set
CONFIG_SCSI_INIA100=y
CONFIG_SCSI_STEX=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
# CONFIG_SCSI_SYM53C8XX_MMIO is not set
CONFIG_SCSI_IPR=y
CONFIG_SCSI_IPR_TRACE=y
CONFIG_SCSI_IPR_DUMP=y
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
CONFIG_SCSI_QLA_ISCSI=y
# CONFIG_SCSI_LPFC is not set
CONFIG_SCSI_DC395x=y
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_DEBUG=y
CONFIG_SCSI_PMCRAID=y
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
CONFIG_SCSI_BFA_FC=y
CONFIG_SCSI_VIRTIO=y
# CONFIG_SCSI_DH is not set
CONFIG_SCSI_OSD_INITIATOR=y
CONFIG_SCSI_OSD_ULD=y
CONFIG_SCSI_OSD_DPRINT_SENSE=1
# CONFIG_SCSI_OSD_DEBUG is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_SATA_INIC162X=y
# CONFIG_SATA_ACARD_AHCI is not set
CONFIG_SATA_SIL24=y
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
CONFIG_SATA_SX4=y
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_HIGHBANK is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
CONFIG_SATA_PROMISE=y
# CONFIG_SATA_SIL is not set
CONFIG_SATA_SIS=y
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
CONFIG_SATA_VIA=y
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARASAN_CF is not set
CONFIG_PATA_ARTOP=y
CONFIG_PATA_ATIIXP=y
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
CONFIG_PATA_CS5520=y
CONFIG_PATA_CS5530=y
CONFIG_PATA_CS5536=y
CONFIG_PATA_CYPRESS=y
CONFIG_PATA_EFAR=y
CONFIG_PATA_HPT366=y
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
CONFIG_PATA_IT8213=y
CONFIG_PATA_IT821X=y
# CONFIG_PATA_JMICRON is not set
CONFIG_PATA_MARVELL=y
CONFIG_PATA_NETCELL=y
CONFIG_PATA_NINJA32=y
CONFIG_PATA_NS87415=y
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
CONFIG_PATA_PDC_OLD=y
CONFIG_PATA_RADISYS=y
# CONFIG_PATA_RDC is not set
CONFIG_PATA_SC1200=y
CONFIG_PATA_SCH=y
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
CONFIG_PATA_SIS=y
CONFIG_PATA_TOSHIBA=y
CONFIG_PATA_TRIFLEX=y
CONFIG_PATA_VIA=y
CONFIG_PATA_WINBOND=y

#
# PIO-only SFF controllers
#
CONFIG_PATA_CMD640_PCI=y
CONFIG_PATA_MPIIX=y
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PLATFORM is not set
CONFIG_PATA_RZ1000=y

#
# Generic fallback / legacy drivers
#
CONFIG_PATA_ACPI=y
# CONFIG_ATA_GENERIC is not set
CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BLK_DEV_DM is not set
CONFIG_TARGET_CORE=y
# CONFIG_TCM_IBLOCK is not set
# CONFIG_TCM_FILEIO is not set
CONFIG_TCM_PSCSI=y
CONFIG_LOOPBACK_TARGET=y
CONFIG_TCM_FC=y
# CONFIG_ISCSI_TARGET is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
CONFIG_BONDING=y
CONFIG_DUMMY=y
CONFIG_EQUALIZER=y
# CONFIG_NET_FC is not set
CONFIG_MII=y
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
CONFIG_NETCONSOLE=y
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_RIONET is not set
CONFIG_TUN=y
CONFIG_VETH=y
CONFIG_VIRTIO_NET=y
CONFIG_SUNGEM_PHY=y
CONFIG_ARCNET=y
# CONFIG_ARCNET_1201 is not set
# CONFIG_ARCNET_1051 is not set
CONFIG_ARCNET_RAW=y
# CONFIG_ARCNET_CAP is not set
# CONFIG_ARCNET_COM90xx is not set
CONFIG_ARCNET_COM90xxIO=y
CONFIG_ARCNET_RIM_I=y
CONFIG_ARCNET_COM20020=y
CONFIG_ARCNET_COM20020_PCI=y

#
# CAIF transport drivers
#
CONFIG_CAIF_TTY=y
# CONFIG_CAIF_SPI_SLAVE is not set
CONFIG_CAIF_HSI=y

#
# Distributed Switch Architecture drivers
#
CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_NET_DSA_MV88E6060=y
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
CONFIG_NET_DSA_MV88E6123_61_65=y
CONFIG_ETHERNET=y
CONFIG_MDIO=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_NET_VENDOR_ALTEON is not set
CONFIG_NET_VENDOR_AMD=y
CONFIG_AMD8111_ETH=y
# CONFIG_PCNET32 is not set
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
CONFIG_ATL1=y
CONFIG_ATL1E=y
# CONFIG_ATL1C is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
CONFIG_BNX2=y
CONFIG_CNIC=y
# CONFIG_TIGON3 is not set
CONFIG_BNX2X=y
# CONFIG_NET_VENDOR_BROCADE is not set
CONFIG_NET_CALXEDA_XGMAC=y
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_CHELSIO_T1=y
CONFIG_CHELSIO_T1_1G=y
CONFIG_CHELSIO_T3=y
CONFIG_CHELSIO_T4=y
# CONFIG_CHELSIO_T4VF is not set
# CONFIG_NET_VENDOR_CISCO is not set
CONFIG_DNET=y
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
CONFIG_DE2104X=y
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=y
# CONFIG_WINBOND_840 is not set
CONFIG_DM9102=y
# CONFIG_ULI526X is not set
# CONFIG_NET_VENDOR_DLINK is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
# CONFIG_E1000 is not set
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
CONFIG_IXGBEVF=y
CONFIG_NET_VENDOR_I825XX=y
CONFIG_ZNET=y
CONFIG_IP1000=y
CONFIG_JME=y
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_SKGE is not set
CONFIG_SKY2=y
CONFIG_SKY2_DEBUG=y
CONFIG_NET_VENDOR_MELLANOX=y
CONFIG_MLX4_EN=y
CONFIG_MLX4_CORE=y
CONFIG_MLX4_DEBUG=y
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
CONFIG_KSZ884X_PCI=y
CONFIG_NET_VENDOR_MYRI=y
CONFIG_MYRI10GE=y
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
CONFIG_ETHOC=y
CONFIG_NET_PACKET_ENGINE=y
CONFIG_HAMACHI=y
# CONFIG_YELLOWFIN is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
CONFIG_NET_VENDOR_REALTEK=y
CONFIG_8139CP=y
CONFIG_8139TOO=y
CONFIG_8139TOO_PIO=y
CONFIG_8139TOO_TUNE_TWISTER=y
CONFIG_8139TOO_8129=y
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_R8169 is not set
# CONFIG_NET_VENDOR_RDC is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_SEEQ8005=y
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
CONFIG_NET_VENDOR_SUN=y
CONFIG_HAPPYMEAL=y
CONFIG_SUNGEM=y
CONFIG_CASSINI=y
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_FDDI=y
CONFIG_DEFXX=y
# CONFIG_DEFXX_MMIO is not set
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
CONFIG_MARVELL_PHY=y
CONFIG_DAVICOM_PHY=y
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
CONFIG_BROADCOM_PHY=y
# CONFIG_BCM87XX_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
CONFIG_STE10XP=y
# CONFIG_LSI_ET1011C_PHY is not set
CONFIG_MICREL_PHY=y
CONFIG_FIXED_PHY=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# USB Network Adapters
#
CONFIG_USB_CATC=y
CONFIG_USB_KAWETH=y
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
CONFIG_WLAN=y
# CONFIG_AIRO is not set
CONFIG_ATMEL=y
# CONFIG_PCI_ATMEL is not set
CONFIG_PRISM54=y
CONFIG_USB_ZD1201=y
# CONFIG_HOSTAP is not set
CONFIG_WL_TI=y

#
# WiMAX Wireless Broadband devices
#
# CONFIG_WIMAX_I2400M_USB is not set
CONFIG_WAN=y
# CONFIG_HDLC is not set
# CONFIG_DLCI is not set
CONFIG_SBNI=y
# CONFIG_SBNI_MULTILINE is not set
CONFIG_XEN_NETDEV_FRONTEND=y
# CONFIG_XEN_NETDEV_BACKEND is not set
CONFIG_VMXNET3=y
CONFIG_HYPERV_NET=y
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y
CONFIG_INPUT_SPARSEKMAP=y
CONFIG_INPUT_MATRIXKMAP=y

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_OMAP4 is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
# CONFIG_MOUSE_PS2_ALPS is not set
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
# CONFIG_MOUSE_PS2_TRACKPOINT is not set
CONFIG_MOUSE_PS2_ELANTECH=y
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=y
# CONFIG_MOUSE_APPLETOUCH is not set
CONFIG_MOUSE_BCM5974=y
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_MOUSE_GPIO=y
# CONFIG_MOUSE_SYNAPTICS_USB is not set
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_ANALOG is not set
CONFIG_JOYSTICK_A3D=y
CONFIG_JOYSTICK_ADI=y
# CONFIG_JOYSTICK_COBRA is not set
CONFIG_JOYSTICK_GF2K=y
CONFIG_JOYSTICK_GRIP=y
CONFIG_JOYSTICK_GRIP_MP=y
# CONFIG_JOYSTICK_GUILLEMOT is not set
# CONFIG_JOYSTICK_INTERACT is not set
CONFIG_JOYSTICK_SIDEWINDER=y
CONFIG_JOYSTICK_TMDC=y
# CONFIG_JOYSTICK_IFORCE is not set
# CONFIG_JOYSTICK_WARRIOR is not set
CONFIG_JOYSTICK_MAGELLAN=y
CONFIG_JOYSTICK_SPACEORB=y
CONFIG_JOYSTICK_SPACEBALL=y
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
CONFIG_JOYSTICK_ZHENHUA=y
# CONFIG_JOYSTICK_JOYDUMP is not set
# CONFIG_JOYSTICK_XPAD is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=y
CONFIG_TABLET_USB_AIPTEK=y
CONFIG_TABLET_USB_GTCO=y
CONFIG_TABLET_USB_HANWANG=y
CONFIG_TABLET_USB_KBTAB=y
CONFIG_TABLET_USB_WACOM=y
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_AD7879=y
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
CONFIG_TOUCHSCREEN_HAMPSHIRE=y
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
CONFIG_TOUCHSCREEN_ELO=y
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
CONFIG_TOUCHSCREEN_MK712=y
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=y
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
# CONFIG_TOUCHSCREEN_USB_3M is not set
# CONFIG_TOUCHSCREEN_USB_ITM is not set
CONFIG_TOUCHSCREEN_USB_ETURBO=y
# CONFIG_TOUCHSCREEN_USB_GUNZE is not set
# CONFIG_TOUCHSCREEN_USB_DMC_TSC10 is not set
# CONFIG_TOUCHSCREEN_USB_IRTOUCH is not set
# CONFIG_TOUCHSCREEN_USB_IDEALTEK is not set
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
# CONFIG_TOUCHSCREEN_USB_GOTOP is not set
CONFIG_TOUCHSCREEN_USB_JASTEC=y
CONFIG_TOUCHSCREEN_USB_ELO=y
# CONFIG_TOUCHSCREEN_USB_E2I is not set
# CONFIG_TOUCHSCREEN_USB_ZYTRONIC is not set
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
CONFIG_TOUCHSCREEN_USB_NEXIO=y
CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
CONFIG_TOUCHSCREEN_TSC_SERIO=y
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_CT82C710=y
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
CONFIG_SERIO_PS2MULT=y
CONFIG_GAMEPORT=y
# CONFIG_GAMEPORT_NS558 is not set
# CONFIG_GAMEPORT_L4 is not set
CONFIG_GAMEPORT_EMU10K1=y
# CONFIG_GAMEPORT_FM801 is not set

#
# Character devices
#
# CONFIG_VT is not set
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_ROCKETPORT=y
# CONFIG_CYCLADES is not set
CONFIG_MOXA_INTELLIO=y
CONFIG_MOXA_SMARTIO=y
CONFIG_SYNCLINK=y
CONFIG_SYNCLINKMP=y
CONFIG_SYNCLINK_GT=y
# CONFIG_NOZOMI is not set
# CONFIG_ISI is not set
CONFIG_N_HDLC=y
CONFIG_N_GSM=y
CONFIG_TRACE_ROUTER=y
CONFIG_TRACE_SINK=y
CONFIG_DEVKMEM=y
# CONFIG_STALDRV is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=y
# CONFIG_SERIAL_8250_PNP is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
# CONFIG_SERIAL_8250_SHARE_IRQ is not set
CONFIG_SERIAL_8250_DETECT_IRQ=y
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MFD_HSU=y
CONFIG_SERIAL_MFD_HSU_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
CONFIG_SERIAL_JSM=y
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
CONFIG_SERIAL_ALTERA_UART=y
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
CONFIG_SERIAL_ALTERA_UART_CONSOLE=y
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
CONFIG_TTY_PRINTK=y
CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y
# CONFIG_HVC_XEN_FRONTEND is not set
CONFIG_VIRTIO_CONSOLE=y
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_HW_RANDOM_INTEL is not set
CONFIG_HW_RANDOM_AMD=y
# CONFIG_HW_RANDOM_VIA is not set
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_HW_RANDOM_TPM is not set
CONFIG_NVRAM=y
CONFIG_R3964=y
CONFIG_APPLICOM=y
# CONFIG_MWAVE is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
CONFIG_HANGCHECK_TIMER=y
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS=y
CONFIG_TCG_NSC=y
CONFIG_TCG_ATMEL=y
CONFIG_TCG_INFINEON=y
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
CONFIG_HSI=y
CONFIG_HSI_BOARDINFO=y

#
# HSI clients
#
CONFIG_HSI_CHAR=y

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#

#
# Enable Device Drivers -> PPS to see the PTP clock options.
#
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_DEBUG_GPIO=y
# CONFIG_GPIO_SYSFS is not set
CONFIG_GPIO_GENERIC=y

#
# Memory mapped GPIO drivers:
#
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_GPIO_IT8761E is not set
CONFIG_GPIO_SCH=y
# CONFIG_GPIO_ICH is not set
CONFIG_GPIO_VX855=y

#
# I2C GPIO expanders:
#

#
# PCI GPIO expanders:
#
CONFIG_GPIO_BT8XX=y
CONFIG_GPIO_AMD8111=y
CONFIG_GPIO_LANGWELL=y
CONFIG_GPIO_PCH=y
# CONFIG_GPIO_ML_IOH is not set
CONFIG_GPIO_RDC321X=y

#
# SPI GPIO expanders:
#

#
# AC97 GPIO expanders:
#

#
# MODULbus GPIO expanders:
#
CONFIG_W1=y
# CONFIG_W1_CON is not set

#
# 1-wire Bus Masters
#
CONFIG_W1_MASTER_MATROX=y
CONFIG_W1_MASTER_DS2490=y
CONFIG_W1_MASTER_DS1WM=y
CONFIG_W1_MASTER_GPIO=y
CONFIG_HDQ_MASTER_OMAP=y

#
# 1-wire Slaves
#
CONFIG_W1_SLAVE_THERM=y
CONFIG_W1_SLAVE_SMEM=y
CONFIG_W1_SLAVE_DS2408=y
CONFIG_W1_SLAVE_DS2423=y
CONFIG_W1_SLAVE_DS2431=y
CONFIG_W1_SLAVE_DS2433=y
CONFIG_W1_SLAVE_DS2433_CRC=y
# CONFIG_W1_SLAVE_DS2760 is not set
# CONFIG_W1_SLAVE_DS2780 is not set
CONFIG_W1_SLAVE_DS2781=y
# CONFIG_W1_SLAVE_DS28E04 is not set
CONFIG_W1_SLAVE_BQ27000=y
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_SUPPLY_DEBUG=y
# CONFIG_PDA_POWER is not set
CONFIG_TEST_POWER=y
# CONFIG_BATTERY_DS2780 is not set
CONFIG_BATTERY_DS2781=y
CONFIG_BATTERY_BQ27x00=y
# CONFIG_BATTERY_BQ27X00_PLATFORM is not set
# CONFIG_CHARGER_ISP1704 is not set
CONFIG_CHARGER_MAX8903=y
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
CONFIG_HWMON_DEBUG_CHIP=y

#
# Native drivers
#
CONFIG_SENSORS_K8TEMP=y
CONFIG_SENSORS_K10TEMP=y
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_I5K_AMB is not set
CONFIG_SENSORS_F71805F=y
# CONFIG_SENSORS_F71882FG is not set
CONFIG_SENSORS_GPIO_FAN=y
CONFIG_SENSORS_CORETEMP=y
CONFIG_SENSORS_IT87=y
# CONFIG_SENSORS_MAX197 is not set
CONFIG_SENSORS_NTC_THERMISTOR=y
CONFIG_SENSORS_PC87360=y
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SHT15 is not set
CONFIG_SENSORS_SIS5595=y
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
CONFIG_SENSORS_APPLESMC=y

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
CONFIG_BCMA=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
CONFIG_BCMA_DEBUG=y

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_SM501 is not set
CONFIG_HTC_PASIC3=y
# CONFIG_MFD_TMIO is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_CS5535 is not set
# CONFIG_MFD_TIMBERDALE is not set
CONFIG_LPC_SCH=y
CONFIG_LPC_ICH=y
CONFIG_MFD_RDC321X=y
# CONFIG_MFD_JANZ_CMODIO is not set
CONFIG_MFD_VX855=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
CONFIG_REGULATOR_DUMMY=y
# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=y
CONFIG_REGULATOR_GPIO=y
CONFIG_MEDIA_SUPPORT=y

#
# Multimedia core support
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
CONFIG_MEDIA_RC_SUPPORT=y
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2=y
CONFIG_VIDEO_ADV_DEBUG=y
CONFIG_VIDEO_FIXED_MINOR_RANGES=y

#
# Media drivers
#
CONFIG_RC_CORE=y
CONFIG_RC_MAP=y
CONFIG_RC_DECODERS=y
# CONFIG_LIRC is not set
CONFIG_IR_NEC_DECODER=y
# CONFIG_IR_RC5_DECODER is not set
CONFIG_IR_RC6_DECODER=y
CONFIG_IR_JVC_DECODER=y
# CONFIG_IR_SONY_DECODER is not set
# CONFIG_IR_RC5_SZ_DECODER is not set
CONFIG_IR_SANYO_DECODER=y
# CONFIG_IR_MCE_KBD_DECODER is not set
CONFIG_RC_DEVICES=y
CONFIG_RC_ATI_REMOTE=y
# CONFIG_IR_ENE is not set
# CONFIG_IR_IMON is not set
CONFIG_IR_MCEUSB=y
CONFIG_IR_ITE_CIR=y
CONFIG_IR_FINTEK=y
CONFIG_IR_NUVOTON=y
# CONFIG_IR_REDRAT3 is not set
CONFIG_IR_STREAMZAP=y
CONFIG_IR_WINBOND_CIR=y
# CONFIG_IR_IGUANA is not set
# CONFIG_IR_TTUSBIR is not set
CONFIG_RC_LOOPBACK=y
# CONFIG_IR_GPIO_CIR is not set
CONFIG_MEDIA_USB_SUPPORT=y

#
# Analog TV USB devices
#
CONFIG_VIDEO_HDPVR=y

#
# Analog/digital TV USB devices
#

#
# Webcam, TV (analog/digital) USB devices
#
# CONFIG_MEDIA_PCI_SUPPORT is not set

#
# Supported MMC/SDIO adapters
#

#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#

#
# Encoders, decoders, sensors and other helper chips
#

#
# Audio decoders, processors and mixers
#

#
# RDS decoders
#

#
# Video decoders
#

#
# Video and audio decoders
#

#
# MPEG video encoders
#
# CONFIG_VIDEO_CX2341X is not set

#
# Video encoders
#

#
# Camera sensor devices
#

#
# Flash devices
#

#
# Video improvement chips
#

#
# Miscelaneous helper chips
#

#
# Sensors used on soc_camera driver
#

#
# Customize TV tuners
#

#
# Customise DVB Frontends
#

#
# Tools to develop new frontends
#
CONFIG_DVB_DUMMY_FE=y

#
# Graphics support
#
CONFIG_AGP=y
# CONFIG_AGP_INTEL is not set
CONFIG_AGP_SIS=y
# CONFIG_AGP_VIA is not set
# CONFIG_VGA_ARB is not set
# CONFIG_VGA_SWITCHEROO is not set
# CONFIG_DRM is not set
# CONFIG_STUB_POULSBO is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=y
# CONFIG_FB is not set
CONFIG_EXYNOS_VIDEO=y
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
# CONFIG_SND is not set
# CONFIG_SOUND_PRIME is not set

#
# HID support
#
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
# CONFIG_HID_CHICONY is not set
CONFIG_HID_CYPRESS=y
# CONFIG_HID_DRAGONRISE is not set
CONFIG_HID_EMS_FF=y
CONFIG_HID_EZKEY=y
CONFIG_HID_HOLTEK=y
CONFIG_HOLTEK_FF=y
CONFIG_HID_KEYTOUCH=y
CONFIG_HID_KYE=y
# CONFIG_HID_UCLOGIC is not set
CONFIG_HID_WALTOP=y
# CONFIG_HID_GYRATION is not set
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
CONFIG_HID_LENOVO_TPKBD=y
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
CONFIG_HID_MULTITOUCH=y
CONFIG_HID_NTRIG=y
# CONFIG_HID_ORTEK is not set
CONFIG_HID_PANTHERLORD=y
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=y
# CONFIG_HID_PICOLCD is not set
CONFIG_HID_PRIMAX=y
CONFIG_HID_ROCCAT=y
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
CONFIG_HID_SPEEDLINK=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
CONFIG_GREENASIA_FF=y
# CONFIG_HID_HYPERV_MOUSE is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=y
CONFIG_HID_THRUSTMASTER=y
# CONFIG_THRUSTMASTER_FF is not set
CONFIG_HID_ZEROPLUS=y
CONFIG_ZEROPLUS_FF=y
# CONFIG_HID_ZYDACRON is not set
CONFIG_HID_SENSOR_HUB=y

#
# USB HID support
#
CONFIG_USB_HID=y
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB_ARCH_HAS_XHCI=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_OTG_WHITELIST=y
CONFIG_USB_OTG_BLACKLIST_HUB=y
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_MON is not set
CONFIG_USB_WUSB=y
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=y
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_OXU210HP_HCD=y
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_U132_HCD=y
CONFIG_USB_SL811_HCD=y
# CONFIG_USB_SL811_HCD_ISO is not set
CONFIG_USB_R8A66597_HCD=y
# CONFIG_USB_WHCI_HCD is not set
CONFIG_USB_HWA_HCD=y
# CONFIG_USB_HCD_BCMA is not set
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_TUSB6010=y
CONFIG_MUSB_PIO_ONLY=y
CONFIG_USB_CHIPIDEA=y
CONFIG_USB_CHIPIDEA_UDC=y
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_USB_CHIPIDEA_DEBUG=y
# CONFIG_USB_RENESAS_USBHS is not set

#
# USB Device Class drivers
#
CONFIG_USB_ACM=y
CONFIG_USB_PRINTER=y
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_DEBUG=y
# CONFIG_USB_STORAGE_REALTEK is not set
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_FREECOM=y
# CONFIG_USB_STORAGE_ISD200 is not set
CONFIG_USB_STORAGE_USBAT=y
# CONFIG_USB_STORAGE_SDDR09 is not set
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
CONFIG_USB_STORAGE_ALAUDA=y
CONFIG_USB_STORAGE_ONETOUCH=y
# CONFIG_USB_STORAGE_KARMA is not set
CONFIG_USB_STORAGE_CYPRESS_ATACB=y
CONFIG_USB_STORAGE_ENE_UB6250=y
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
CONFIG_USB_RIO500=y
CONFIG_USB_LEGOTOWER=y
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
CONFIG_USB_CYTHERM=y
# CONFIG_USB_IDMOUSE is not set
CONFIG_USB_FTDI_ELAN=y
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
CONFIG_USB_IOWARRIOR=y
CONFIG_USB_TEST=y
CONFIG_USB_ISIGHTFW=y
CONFIG_USB_YUREX=y

#
# USB Physical Layer drivers
#
CONFIG_OMAP_USB2=y
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FS is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2

#
# USB Peripheral Controller
#
CONFIG_USB_R8A66597=y
# CONFIG_USB_MV_UDC is not set
CONFIG_USB_GADGET_MUSB_HDRC=y
CONFIG_USB_M66592=y
# CONFIG_USB_AMD5536UDC is not set
CONFIG_USB_NET2272=y
CONFIG_USB_NET2272_DMA=y
CONFIG_USB_NET2280=y
# CONFIG_USB_GOKU is not set
CONFIG_USB_EG20T=y
CONFIG_USB_DUMMY_HCD=y
CONFIG_USB_LIBCOMPOSITE=y
# CONFIG_USB_ZERO is not set
# CONFIG_USB_ETH is not set
# CONFIG_USB_G_NCM is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FUNCTIONFS is not set
# CONFIG_USB_FILE_STORAGE is not set
# CONFIG_USB_MASS_STORAGE is not set
CONFIG_USB_GADGET_TARGET=y
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_ACM_MS is not set
# CONFIG_USB_G_MULTI is not set
# CONFIG_USB_G_HID is not set
# CONFIG_USB_G_DBGP is not set
# CONFIG_USB_G_WEBCAM is not set

#
# OTG and related infrastructure
#
CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_NOP_USB_XCEIV is not set
CONFIG_UWB=y
CONFIG_UWB_HWA=y
CONFIG_UWB_WHCI=y
# CONFIG_UWB_I1480U is not set
CONFIG_MMC=y
CONFIG_MMC_DEBUG=y
# CONFIG_MMC_UNSAFE_RESUME is not set
CONFIG_MMC_CLKGATE=y

#
# MMC/SD/SDIO Card Drivers
#
# CONFIG_MMC_BLOCK is not set
CONFIG_SDIO_UART=y
CONFIG_MMC_TEST=y

#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=y
# CONFIG_MMC_SDHCI_PCI is not set
# CONFIG_MMC_SDHCI_PLTFM is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
CONFIG_MMC_CB710=y
# CONFIG_MMC_VIA_SDMMC is not set
CONFIG_MMC_VUB300=y
CONFIG_MMC_USHC=y
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_REGULATOR=y
CONFIG_LEDS_LT3593=y
# CONFIG_LEDS_OT200 is not set
CONFIG_LEDS_TRIGGERS=y

#
# LED Triggers
#
# CONFIG_LEDS_TRIGGER_TIMER is not set
CONFIG_LEDS_TRIGGER_ONESHOT=y
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
CONFIG_LEDS_TRIGGER_BACKLIGHT=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=y
# CONFIG_INFINIBAND_USER_MAD is not set
CONFIG_INFINIBAND_USER_ACCESS=y
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ADDR_TRANS=y
# CONFIG_INFINIBAND_MTHCA is not set
CONFIG_INFINIBAND_QIB=y
# CONFIG_INFINIBAND_AMSO1100 is not set
CONFIG_INFINIBAND_CXGB3=y
CONFIG_INFINIBAND_CXGB3_DEBUG=y
# CONFIG_INFINIBAND_CXGB4 is not set
CONFIG_MLX4_INFINIBAND=y
# CONFIG_INFINIBAND_NES is not set
# CONFIG_INFINIBAND_OCRDMA is not set
CONFIG_INFINIBAND_IPOIB=y
# CONFIG_INFINIBAND_IPOIB_CM is not set
# CONFIG_INFINIBAND_IPOIB_DEBUG is not set
CONFIG_INFINIBAND_SRP=y
CONFIG_INFINIBAND_SRPT=y
CONFIG_INFINIBAND_ISER=y
CONFIG_EDAC=y

#
# Reporting subsystems
#
CONFIG_EDAC_LEGACY_SYSFS=y
CONFIG_EDAC_DEBUG=y
# CONFIG_EDAC_MM_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_DEV is not set
CONFIG_RTC_DRV_TEST=y

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=y
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
CONFIG_RTC_DRV_STK17TA8=y
CONFIG_RTC_DRV_M48T86=y
CONFIG_RTC_DRV_M48T35=y
CONFIG_RTC_DRV_M48T59=y
CONFIG_RTC_DRV_MSM6242=y
CONFIG_RTC_DRV_BQ4802=y
CONFIG_RTC_DRV_RP5C01=y
CONFIG_RTC_DRV_V3020=y
# CONFIG_RTC_DRV_DS2404 is not set

#
# on-CPU RTC drivers
#
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_INTEL_MID_DMAC=y
# CONFIG_INTEL_IOATDMA is not set
# CONFIG_TIMB_DMA is not set
# CONFIG_PCH_DMA is not set
CONFIG_DMA_ENGINE=y

#
# DMA Clients
#
CONFIG_NET_DMA=y
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=y
CONFIG_UIO_CIF=y
CONFIG_UIO_PDRV=y
CONFIG_UIO_PDRV_GENIRQ=y
CONFIG_UIO_AEC=y
# CONFIG_UIO_SERCOS3 is not set
CONFIG_UIO_PCI_GENERIC=y
CONFIG_UIO_NETX=y
# CONFIG_VFIO is not set
CONFIG_VIRTIO=y

#
# Virtio drivers
#
CONFIG_VIRTIO_PCI=y
# CONFIG_VIRTIO_BALLOON is not set
CONFIG_VIRTIO_MMIO=y
# CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES is not set

#
# Microsoft Hyper-V guest support
#
CONFIG_HYPERV=y
CONFIG_HYPERV_UTILS=y

#
# Xen driver support
#
CONFIG_XEN_BALLOON=y
# CONFIG_XEN_SCRUB_PAGES is not set
# CONFIG_XEN_DEV_EVTCHN is not set
CONFIG_XEN_BACKEND=y
# CONFIG_XENFS is not set
# CONFIG_XEN_SYS_HYPERVISOR is not set
CONFIG_XEN_XENBUS_FRONTEND=y
# CONFIG_XEN_GNTDEV is not set
# CONFIG_XEN_GRANT_DEV_ALLOC is not set
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_PCIDEV_BACKEND=y
CONFIG_XEN_PRIVCMD=y
# CONFIG_XEN_MCE_LOG is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ASUS_LAPTOP=y
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_HP_ACCEL is not set
CONFIG_PANASONIC_LAPTOP=y
# CONFIG_THINKPAD_ACPI is not set
CONFIG_SENSORS_HDAPS=y
CONFIG_EEEPC_LAPTOP=y
# CONFIG_ACPI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
CONFIG_TOSHIBA_BT_RFKILL=y
# CONFIG_ACPI_CMPC is not set
CONFIG_INTEL_IPS=y
CONFIG_IBM_RTL=y
CONFIG_XO15_EBOOK=y
CONFIG_SAMSUNG_LAPTOP=y
# CONFIG_SAMSUNG_Q10 is not set
CONFIG_APPLE_GMUX=y

#
# Hardware Spinlock drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
# CONFIG_AMD_IOMMU is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_IRQ_REMAP=y

#
# Remoteproc drivers (EXPERIMENTAL)
#

#
# Rpmsg drivers (EXPERIMENTAL)
#
CONFIG_VIRT_DRIVERS=y
CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
CONFIG_DEVFREQ_GOV_PERFORMANCE=y
# CONFIG_DEVFREQ_GOV_POWERSAVE is not set
CONFIG_DEVFREQ_GOV_USERSPACE=y

#
# DEVFREQ Drivers
#
# CONFIG_EXTCON is not set
CONFIG_MEMORY=y
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=y
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2

#
# Accelerometers
#
CONFIG_HID_SENSOR_ACCEL_3D=y

#
# Analog to digital converters
#

#
# Amplifiers
#

#
# Light sensors
#
CONFIG_HID_SENSOR_ALS=y

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#

#
# Phase-Locked Loop (PLL) frequency synthesizers
#

#
# Digital to analog converters
#

#
# Hid Sensor IIO Common
#
CONFIG_HID_SENSOR_IIO_COMMON=y
CONFIG_HID_SENSOR_ENUM_BASE_QUIRKS=y

#
# Digital gyroscope sensors
#
# CONFIG_HID_SENSOR_GYRO_3D is not set

#
# Light sensors
#

#
# Magnetometer sensors
#
CONFIG_HID_SENSOR_MAGNETOMETER_3D=y
CONFIG_VME_BUS=y

#
# VME Bridge Drivers
#
# CONFIG_VME_CA91CX42 is not set
CONFIG_VME_TSI148=y

#
# VME Board Drivers
#
# CONFIG_VMIVME_7805 is not set

#
# VME Device Drivers
#
# CONFIG_PWM is not set

#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_FIRMWARE_MEMMAP is not set
CONFIG_DELL_RBU=y
# CONFIG_DCDBAS is not set
# CONFIG_ISCSI_IBFT_FIND is not set
CONFIG_GOOGLE_FIRMWARE=y

#
# Google Firmware Drivers
#

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_FS_XIP=y
CONFIG_JBD=y
CONFIG_JBD_DEBUG=y
CONFIG_JBD2=y
CONFIG_JBD2_DEBUG=y
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_CHECK=y
CONFIG_REISERFS_FS_XATTR=y
# CONFIG_REISERFS_FS_POSIX_ACL is not set
# CONFIG_REISERFS_FS_SECURITY is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
# CONFIG_XFS_POSIX_ACL is not set
# CONFIG_XFS_RT is not set
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
CONFIG_OCFS2_FS=y
CONFIG_OCFS2_FS_O2CB=y
# CONFIG_OCFS2_FS_USERSPACE_CLUSTER is not set
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
# CONFIG_INOTIFY_USER is not set
CONFIG_FANOTIFY=y
# CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_DEBUG=y
CONFIG_QUOTA_TREE=y
CONFIG_QFMT_V1=y
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_QUOTACTL_COMPAT=y
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
# CONFIG_VFAT_FS is not set
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_NTFS_FS=y
CONFIG_NTFS_DEBUG=y
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
# CONFIG_PROC_FS is not set
CONFIG_SYSFS=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
CONFIG_AFFS_FS=y
CONFIG_ECRYPT_FS=y
CONFIG_HFS_FS=y
CONFIG_HFSPLUS_FS=y
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_UBIFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
# CONFIG_SQUASHFS_XATTR is not set
# CONFIG_SQUASHFS_ZLIB is not set
# CONFIG_SQUASHFS_LZO is not set
CONFIG_SQUASHFS_XZ=y
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
CONFIG_SQUASHFS_EMBEDDED=y
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
CONFIG_MINIX_FS=y
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_QNX4FS_FS=y
# CONFIG_QNX6FS_FS is not set
CONFIG_ROMFS_FS=y
# CONFIG_ROMFS_BACKED_BY_BLOCK is not set
CONFIG_ROMFS_BACKED_BY_MTD=y
# CONFIG_ROMFS_BACKED_BY_BOTH is not set
CONFIG_ROMFS_ON_MTD=y
CONFIG_PSTORE=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_RAM is not set
CONFIG_SYSV_FS=y
# CONFIG_UFS_FS is not set
# CONFIG_EXOFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
# CONFIG_NFS_V2 is not set
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=y
# CONFIG_NFS_SWAP is not set
# CONFIG_NFS_V4_1 is not set
CONFIG_ROOT_NFS=y
CONFIG_NFS_USE_LEGACY_DNS=y
CONFIG_NFSD=y
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_XPRT_RDMA=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_CEPH_FS=y
CONFIG_CIFS=y
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_WEAK_PW_HASH=y
# CONFIG_CIFS_UPCALL is not set
# CONFIG_CIFS_XATTR is not set
CONFIG_CIFS_DEBUG2=y
# CONFIG_CIFS_DFS_UPCALL is not set
CONFIG_NCP_FS=y
CONFIG_NCPFS_PACKET_SIGNING=y
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
CONFIG_NCPFS_NFS_NS=y
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
CONFIG_NCPFS_EXTRAS=y
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_9P_FS=y
# CONFIG_9P_FS_POSIX_ACL is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=y
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
CONFIG_NLS_CODEPAGE_852=y
CONFIG_NLS_CODEPAGE_855=y
CONFIG_NLS_CODEPAGE_857=y
# CONFIG_NLS_CODEPAGE_860 is not set
CONFIG_NLS_CODEPAGE_861=y
# CONFIG_NLS_CODEPAGE_862 is not set
CONFIG_NLS_CODEPAGE_863=y
# CONFIG_NLS_CODEPAGE_864 is not set
CONFIG_NLS_CODEPAGE_865=y
# CONFIG_NLS_CODEPAGE_866 is not set
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
CONFIG_NLS_CODEPAGE_950=y
CONFIG_NLS_CODEPAGE_932=y
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=y
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
CONFIG_NLS_ISO8859_3=y
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=y
CONFIG_NLS_ISO8859_6=y
# CONFIG_NLS_ISO8859_7 is not set
CONFIG_NLS_ISO8859_9=y
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
CONFIG_NLS_MAC_CELTIC=y
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
CONFIG_NLS_MAC_GREEK=y
# CONFIG_NLS_MAC_ICELAND is not set
CONFIG_NLS_MAC_INUIT=y
# CONFIG_NLS_MAC_ROMANIAN is not set
CONFIG_NLS_MAC_TURKISH=y
CONFIG_NLS_UTF8=y
CONFIG_DLM=y
# CONFIG_DLM_DEBUG is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_ENABLE_WARN_DEPRECATED=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_DEBUG_OBJECTS=y
# CONFIG_DEBUG_OBJECTS_SELFTEST is not set
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
# CONFIG_DEBUG_OBJECTS_WORK is not set
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
# CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER is not set
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
# CONFIG_PROVE_RCU is not set
CONFIG_SPARSE_RCU_POINTER=y
CONFIG_LOCKDEP=y
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_LOCKDEP=y
CONFIG_TRACE_IRQFLAGS=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_RB=y
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
CONFIG_DEBUG_NOTIFIERS=y
CONFIG_DEBUG_CREDENTIALS=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_RCU_CPU_STALL_INFO=y
# CONFIG_RCU_TRACE is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_LKDTM=y
CONFIG_NOTIFIER_ERROR_INJECTION=y
CONFIG_CPU_NOTIFIER_ERROR_INJECT=y
# CONFIG_PM_NOTIFIER_ERROR_INJECT is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_WANT_PAGE_DEBUG_FLAGS=y
CONFIG_PAGE_GUARD=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DMA_API_DEBUG is not set
CONFIG_ATOMIC64_SELFTEST=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
# CONFIG_KGDB_TESTS is not set
CONFIG_KGDB_LOW_LEVEL_TRAP=y
CONFIG_KGDB_KDB=y
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_TEST_KSTRTOX=y
# CONFIG_STRICT_DEVMEM is not set
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_X86_PTDUMP is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_IOMMU_STRESS=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
# CONFIG_IO_DELAY_0X80 is not set
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
CONFIG_IO_DELAY_NONE=y
CONFIG_DEFAULT_IO_DELAY_TYPE=3
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
# CONFIG_OPTIMIZE_INLINING is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
CONFIG_DEBUG_NMI_SELFTEST=y

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_TRUSTED_KEYS is not set
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_PATH=y
CONFIG_INTEL_TXT=y
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_APPRAISE=y
CONFIG_EVM=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=y
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_PCRYPT=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_ABLK_HELPER_X86=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_SEQIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=y

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
CONFIG_CRYPTO_VMAC=y

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=y
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
CONFIG_CRYPTO_RMD128=y
CONFIG_CRYPTO_RMD160=y
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
CONFIG_CRYPTO_SHA256=y
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
CONFIG_CRYPTO_WP512=y
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=y

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_X86_64=y
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_BLOWFISH_X86_64=y
CONFIG_CRYPTO_CAMELLIA=y
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_DES_SPARC64 is not set
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_KHAZAD=y
CONFIG_CRYPTO_SALSA20=y
CONFIG_CRYPTO_SALSA20_X86_64=y
CONFIG_CRYPTO_SEED=y
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
CONFIG_CRYPTO_TEA=y
# CONFIG_CRYPTO_TWOFISH is not set
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_X86_64=y
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=y
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_ZLIB=y
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=y
CONFIG_CRYPTO_DEV_PADLOCK_AES=y
CONFIG_CRYPTO_DEV_PADLOCK_SHA=y
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=y
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC7=y
CONFIG_LIBCRC32C=y
CONFIG_CRC8=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
# CONFIG_XZ_DEC_X86 is not set
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_SPARC is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_BCH=y
CONFIG_BCH_CONST_PARAMS=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-20 21:39           ` Fengguang Wu
@ 2012-09-20 22:27             ` Hugh Dickins
  2012-09-20 22:31               ` Fengguang Wu
  0 siblings, 1 reply; 30+ messages in thread
From: Hugh Dickins @ 2012-09-20 22:27 UTC (permalink / raw)
  To: Fengguang Wu
  Cc: Sasha Levin, Michel Lespinasse, linux-mm, riel, peterz, aarcange,
	daniel.santos, linux-kernel, akpm, Dave Jones, Jiri Slaby

On Fri, 21 Sep 2012, Fengguang Wu wrote:
> On Sat, Sep 15, 2012 at 11:26:23AM +0200, Sasha Levin wrote:
> > On 09/15/2012 02:00 AM, Michel Lespinasse wrote:
> > > All right. Hugh managed to reproduce the issue on his suse laptop, and
> > > I came up with a fix.
> > >
> > > The problem was that in mremap, the new vma's vm_{start,end,pgoff}
> > > fields need to be updated before calling anon_vma_clone() so that the
> > > new vma will be properly indexed.
> > >
> > > Patch attached. I expect this should also explain Jiri's reported
> > > failure involving splitting THP pages during mremap(), even though we
> > > did not manage to reproduce that one.
> >
> > Initially I've stumbled on it by running trinity inside a KVM tools guest. fwiw,
> > the guest is pretty custom and isn't based on suse.
> >
> > I re-ran tests with patch applied and looks like it fixed the issue, I haven't
> > seen the warnings even though it runs for quite a while now.
> 
> Not sure if it's the same problem you are talking about, but I got the
> below warning and it's still happening in linux-next 20120920:

It is (almost certainly) the same problem, for which Michel provided
the fix earlier in this thread (some of us find we have to delete a
" {" from the context at the end to get it to apply).

That fix has gone into akpm's tree, but linux-next is still using an
older rollup of akpm's tree.

Thanks,
Hugh

> 
> [   38.482925] scsi_nl_rcv_msg: discarding partial skb
> [   62.679879] ------------[ cut here ]------------
> [   62.680380] WARNING: at /c/kernel-tests/src/linux/mm/interval_tree.c:109 anon_vma_interval_tree_verify+0x33/0x80()
> [   62.681356] Pid: 195, comm: trinity-child0 Not tainted 3.6.0-rc6-next-20120918-08732-g3de9d1a #1
> [   62.682130] Call Trace:
> [   62.682356]  [<ffffffff810c249f>] ? anon_vma_interval_tree_verify+0x33/0x80
> [   62.682968]  [<ffffffff81044356>] warn_slowpath_common+0x5d/0x74
> [   62.683577]  [<ffffffff81044424>] warn_slowpath_null+0x15/0x19
> [   62.684098]  [<ffffffff810c249f>] anon_vma_interval_tree_verify+0x33/0x80
> [   62.684714]  [<ffffffff810ca57c>] validate_mm+0x32/0x15b
> [   62.685202]  [<ffffffff810ca767>] vma_link+0x95/0xa4
> [   62.685637]  [<ffffffff810cbc31>] copy_vma+0x1c7/0x1fe
> [   62.686168]  [<ffffffff810cdd50>] move_vma+0x90/0x1ef
> [   62.686614]  [<ffffffff810ce250>] sys_mremap+0x3a1/0x429
> [   62.687094]  [<ffffffff813caafe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
> [   62.687670]  [<ffffffff81b505b9>] system_call_fastpath+0x16/0x1b
> 
> Bisected down to 
> 
> commit cb58d445d2ec3a06f313e29d6f6af5bef6c9e43c
> Author: Michel Lespinasse <walken@google.com>
> Date:   Thu Sep 13 10:58:56 2012 +1000
> 
>     mm: add CONFIG_DEBUG_VM_RB build option
> 
> Thanks,
> Fengguang

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-20 22:27             ` Hugh Dickins
@ 2012-09-20 22:31               ` Fengguang Wu
  0 siblings, 0 replies; 30+ messages in thread
From: Fengguang Wu @ 2012-09-20 22:31 UTC (permalink / raw)
  To: Hugh Dickins
  Cc: Sasha Levin, Michel Lespinasse, linux-mm, riel, peterz, aarcange,
	daniel.santos, linux-kernel, akpm, Dave Jones, Jiri Slaby

On Thu, Sep 20, 2012 at 03:27:11PM -0700, Hugh Dickins wrote:
> On Fri, 21 Sep 2012, Fengguang Wu wrote:
> > On Sat, Sep 15, 2012 at 11:26:23AM +0200, Sasha Levin wrote:
> > > On 09/15/2012 02:00 AM, Michel Lespinasse wrote:
> > > > All right. Hugh managed to reproduce the issue on his suse laptop, and
> > > > I came up with a fix.
> > > >
> > > > The problem was that in mremap, the new vma's vm_{start,end,pgoff}
> > > > fields need to be updated before calling anon_vma_clone() so that the
> > > > new vma will be properly indexed.
> > > >
> > > > Patch attached. I expect this should also explain Jiri's reported
> > > > failure involving splitting THP pages during mremap(), even though we
> > > > did not manage to reproduce that one.
> > >
> > > Initially I've stumbled on it by running trinity inside a KVM tools guest. fwiw,
> > > the guest is pretty custom and isn't based on suse.
> > >
> > > I re-ran tests with patch applied and looks like it fixed the issue, I haven't
> > > seen the warnings even though it runs for quite a while now.
> > 
> > Not sure if it's the same problem you are talking about, but I got the
> > below warning and it's still happening in linux-next 20120920:
> 
> It is (almost certainly) the same problem, for which Michel provided
> the fix earlier in this thread (some of us find we have to delete a
> " {" from the context at the end to get it to apply).
> 
> That fix has gone into akpm's tree, but linux-next is still using an
> older rollup of akpm's tree.

Got it, thank you for the quick information!

Thanks,
Fengguang

> > [   38.482925] scsi_nl_rcv_msg: discarding partial skb
> > [   62.679879] ------------[ cut here ]------------
> > [   62.680380] WARNING: at /c/kernel-tests/src/linux/mm/interval_tree.c:109 anon_vma_interval_tree_verify+0x33/0x80()
> > [   62.681356] Pid: 195, comm: trinity-child0 Not tainted 3.6.0-rc6-next-20120918-08732-g3de9d1a #1
> > [   62.682130] Call Trace:
> > [   62.682356]  [<ffffffff810c249f>] ? anon_vma_interval_tree_verify+0x33/0x80
> > [   62.682968]  [<ffffffff81044356>] warn_slowpath_common+0x5d/0x74
> > [   62.683577]  [<ffffffff81044424>] warn_slowpath_null+0x15/0x19
> > [   62.684098]  [<ffffffff810c249f>] anon_vma_interval_tree_verify+0x33/0x80
> > [   62.684714]  [<ffffffff810ca57c>] validate_mm+0x32/0x15b
> > [   62.685202]  [<ffffffff810ca767>] vma_link+0x95/0xa4
> > [   62.685637]  [<ffffffff810cbc31>] copy_vma+0x1c7/0x1fe
> > [   62.686168]  [<ffffffff810cdd50>] move_vma+0x90/0x1ef
> > [   62.686614]  [<ffffffff810ce250>] sys_mremap+0x3a1/0x429
> > [   62.687094]  [<ffffffff813caafe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
> > [   62.687670]  [<ffffffff81b505b9>] system_call_fastpath+0x16/0x1b
> > 
> > Bisected down to 
> > 
> > commit cb58d445d2ec3a06f313e29d6f6af5bef6c9e43c
> > Author: Michel Lespinasse <walken@google.com>
> > Date:   Thu Sep 13 10:58:56 2012 +1000
> > 
> >     mm: add CONFIG_DEBUG_VM_RB build option
> > 
> > Thanks,
> > Fengguang

^ permalink raw reply	[flat|nested] 30+ messages in thread

* Re: [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option
  2012-09-16 19:07           ` Hugh Dickins
@ 2012-09-22  7:19             ` Jiri Slaby
  0 siblings, 0 replies; 30+ messages in thread
From: Jiri Slaby @ 2012-09-22  7:19 UTC (permalink / raw)
  To: Hugh Dickins
  Cc: Michel Lespinasse, Sasha Levin, linux-mm, riel, peterz, aarcange,
	daniel.santos, linux-kernel, akpm, Dave Jones

On 09/16/2012 09:07 PM, Hugh Dickins wrote:
>> What was the way that
>> Hugh used to reproduce the other issue?
> 
> I've lost track of which issue is "other".

The other was meant to be the BUG I hit.

> To reproduce Sasha's interval_tree.c warnings, all I had to do was switch
> on CONFIG_DEBUG_VM_RB (I regret not having done so before) and boot up.
> 
> I didn't look to see what was doing the mremap which caused the warning
> until now: surprisingly, it's microcode_ctl.  I've not made much effort
> to get the right set of sources and work out why that would be using
> mremap (a realloc inside a library?).
> 
> I failed to reproduce your BUG in huge_memory.c, but what I was trying
> was SuSE update via yast2, on several machines; but perhaps because
> they were all fairly close to up-to-date, I didn't hit a problem.
> (That was before I turned on DEBUG_VM_RB for Sasha's.)

The good news are that I cannot reproduce either with the patch applied.

thanks,
-- 
js
suse labs

^ permalink raw reply	[flat|nested] 30+ messages in thread

end of thread, other threads:[~2012-09-22  7:19 UTC | newest]

Thread overview: 30+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-09-04  9:20 [PATCH 0/7] use interval trees for anon rmap Michel Lespinasse
2012-09-04  9:20 ` [PATCH 1/7] mm: interval tree updates Michel Lespinasse
2012-09-07 22:13   ` Andrew Morton
2012-09-07 22:29     ` Michel Lespinasse
2012-09-07 22:55       ` Andrew Morton
2012-09-07 23:26         ` Michel Lespinasse
2012-09-08  4:45           ` Hillf Danton
2012-09-07 23:26         ` Michel Lespinasse
2012-09-04  9:20 ` [PATCH 2/7] mm: fix potential anon_vma locking issue in mprotect() Michel Lespinasse
2012-09-04 14:27   ` Andrea Arcangeli
2012-09-04 21:53     ` Michel Lespinasse
2012-09-04 22:16       ` Andrea Arcangeli
2012-09-05  0:45         ` Michel Lespinasse
2012-09-04  9:20 ` [PATCH 3/7] mm anon rmap: remove anon_vma_moveto_tail Michel Lespinasse
2012-09-04  9:20 ` [PATCH 4/7] mm anon rmap: replace same_anon_vma linked list with an interval tree Michel Lespinasse
2012-09-05  0:51   ` Michel Lespinasse
2012-09-04  9:20 ` [PATCH 5/7] mm rmap: remove vma_address check for address inside vma Michel Lespinasse
2012-09-04  9:20 ` [PATCH 6/7] mm: add CONFIG_DEBUG_VM_RB build option Michel Lespinasse
2012-09-14 22:14   ` Sasha Levin
2012-09-14 22:40     ` Sasha Levin
2012-09-14 22:46     ` Michel Lespinasse
2012-09-15  0:00       ` Michel Lespinasse
2012-09-15  7:52         ` Jiri Slaby
2012-09-16 19:07           ` Hugh Dickins
2012-09-22  7:19             ` Jiri Slaby
2012-09-15  9:26         ` Sasha Levin
2012-09-20 21:39           ` Fengguang Wu
2012-09-20 22:27             ` Hugh Dickins
2012-09-20 22:31               ` Fengguang Wu
2012-09-04  9:20 ` [PATCH 7/7] mm: avoid taking rmap locks in move_ptes() Michel Lespinasse

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