[Patch v4 0/9] *** Fix kdump failure in system with amd iommu***

[Patch v4 0/9] *** Fix kdump failure in system with amd iommu***

[Baoquan He]

Hi Joerg,

Recently I have time to continue the work of fixing AMD IOMMU faults in
kdump kernel. The situation is I tried to make change at the time point
as Intel iommu has done, but still Ethernet NIC will trigger the printing
of IO_PAGE_FAULT. I got 2 machines with AMD IOMMU v1 and v2 separately,
the test result is similar, always there are IO_PAGE_FAULT message for
Ethernet network card. I have no idea why it happened though I did it
just like Intel IOMMU did.

In this v4 change, I just made changes as follows:

1) Several clean up patches when I reviewed AMD IOMMU code.
2) Detect if it's pre-enabled in kdump kernel.
3) Copy dev tables in kdump kernel. Since dev table is per device we just
   need to copy the content in dev table, the io page table pointer and
   irq table pointer are contained in each dev table entry.
4) Reserved the domain id which has been allocated in 1st kernel
5) Do not re-enable or re-init the dev table entry bits or control bit
   of AMD IOMMU.

Post this to mailing list, hope it can be figured out which need be further
changed.

v3->v4:
    1)Define several PTE/DTE bits MACRO definition according to Zongshun's
      comments.
    2)Learned the implementation of vt-d fix done by Joerg and did the AMD
      IOMMU change similiarly.

Baoquan HE (4):
  iommu/amd: add early_enable_iommu() helper function
  iommu/amd: copy old trans table from old kernel
  iommu/amd: Do not initialize dev tables again in kdump
  iommu/amd: Check the validation of irq table and domain id

Baoquan He (5):
  iommu/amd: clean up the cmpxchg64 invocation
  iommu/amd: Use standard bitmap operation to set bitmap
  iommu/amd: Detect pre enabled translation
  iommu/amd: Define bit fields for DTE particularly
  iommu/amd: Add function copy_dev_tables

 drivers/iommu/amd_iommu.c       |  21 +++----
 drivers/iommu/amd_iommu_init.c  | 136 +++++++++++++++++++++++++++++++++++-----
 drivers/iommu/amd_iommu_types.h |  29 +++++++--
 3 files changed, 156 insertions(+), 30 deletions(-)

-- 
2.5.5

[Patch v4 1/9] iommu/amd: clean up the cmpxchg64 invocation

[Baoquan He]

Change it as it's designed for and keep it consistent with other
places.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 5efadad..9ec7cad 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1287,7 +1287,8 @@ static u64 *alloc_pte(struct protection_domain *domain,
 
 			__npte = PM_LEVEL_PDE(level, virt_to_phys(page));
 
-			if (cmpxchg64(pte, __pte, __npte)) {
+			/* pte could have been changed somewhere. */
+			if (cmpxchg64(pte, __pte, __npte) != __pte) {
 				free_page((unsigned long)page);
 				continue;
 			}
-- 
2.5.5

[Patch v4 2/9] iommu/amd: Use standard bitmap operation to set bitmap

[Baoquan He]

It will be more readable then the old setting.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu.c      | 2 +-
 drivers/iommu/amd_iommu_init.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 9ec7cad..cc636e6 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2016,7 +2016,7 @@ static struct dma_ops_domain *dma_ops_domain_alloc(void)
 	 * mark the first page as allocated so we never return 0 as
 	 * a valid dma-address. So we can use 0 as error value
 	 */
-	dma_dom->aperture[0]->bitmap[0] = 1;
+	__set_bit(0, dma_dom->aperture[0]->bitmap);
 
 	for_each_possible_cpu(cpu)
 		*per_cpu_ptr(dma_dom->next_index, cpu) = 0;
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index bf4959f..8361367d 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -20,6 +20,7 @@
 #include <linux/pci.h>
 #include <linux/acpi.h>
 #include <linux/list.h>
+#include <linux/bitmap.h>
 #include <linux/slab.h>
 #include <linux/syscore_ops.h>
 #include <linux/interrupt.h>
@@ -1908,8 +1909,7 @@ static int __init early_amd_iommu_init(void)
 	 * never allocate domain 0 because its used as the non-allocated and
 	 * error value placeholder
 	 */
-	amd_iommu_pd_alloc_bitmap[0] = 1;
-
+	 __set_bit(0, amd_iommu_pd_alloc_bitmap);
 	spin_lock_init(&amd_iommu_pd_lock);
 
 	/*
-- 
2.5.5

[Patch v4 3/9] iommu/amd: Detect pre enabled translation

[Baoquan He]

Add functions to check whether translation is already enabled in IOMMU.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu_init.c  | 25 +++++++++++++++++++++++++
 drivers/iommu/amd_iommu_types.h |  4 ++++
 2 files changed, 29 insertions(+)

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 8361367d..9e1dfcb 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -229,6 +229,26 @@ static int amd_iommu_enable_interrupts(void);
 static int __init iommu_go_to_state(enum iommu_init_state state);
 static void init_device_table_dma(void);
 
+
+static bool translation_pre_enabled(struct amd_iommu *iommu)
+{
+	return (iommu->flags & AMD_IOMMU_FLAG_TRANS_PRE_ENABLED);
+}
+
+static void clear_translation_pre_enabled(struct amd_iommu *iommu)
+{
+        iommu->flags &= ~AMD_IOMMU_FLAG_TRANS_PRE_ENABLED;
+}
+
+static void init_translation_status(struct amd_iommu *iommu)
+{
+	u32 ctrl;
+
+	ctrl = readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
+	if (ctrl & (1<<CONTROL_IOMMU_EN))
+		iommu->flags |= AMD_IOMMU_FLAG_TRANS_PRE_ENABLED;
+}
+
 static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu,
 				    u8 bank, u8 cntr, u8 fxn,
 				    u64 *value, bool is_write);
@@ -1101,6 +1121,11 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
 
 	iommu->int_enabled = false;
 
+	init_translation_status(iommu);
+
+	if (translation_pre_enabled())
+		pr_warn("Translation is already enabled - trying to copy translation structures\n");
+
 	ret = init_iommu_from_acpi(iommu, h);
 	if (ret)
 		return ret;
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 9d32b20..01783cc 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -384,6 +384,7 @@ extern struct kmem_cache *amd_iommu_irq_cache;
 #define APERTURE_PAGE_INDEX(a)	(((a) >> 21) & 0x3fULL)
 
 
+
 /*
  * This struct is used to pass information about
  * incoming PPR faults around.
@@ -401,6 +402,8 @@ struct amd_iommu_fault {
 struct iommu_domain;
 struct irq_domain;
 
+#define AMD_IOMMU_FLAG_TRANS_PRE_ENABLED      (1 << 0)
+
 /*
  * This structure contains generic data for  IOMMU protection domains
  * independent of their use.
@@ -525,6 +528,7 @@ struct amd_iommu {
 	struct irq_domain *ir_domain;
 	struct irq_domain *msi_domain;
 #endif
+	u32 flags;
 };
 
 struct devid_map {
-- 
2.5.5

[Patch v4 4/9] iommu/amd: add early_enable_iommu() helper function

[Baoquan He]

From: Baoquan HE <bhe@dhcp-129-10.nay.redhat.com>

This can make later kdump change easier.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu_init.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 9e1dfcb..9c1aa54 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1673,6 +1673,18 @@ static void iommu_apply_resume_quirks(struct amd_iommu *iommu)
 			       iommu->stored_addr_lo | 1);
 }
 
+static void early_enable_iommu(struct amd_iommu *iommu)
+{
+	iommu_disable(iommu);
+	iommu_init_flags(iommu);
+	iommu_set_device_table(iommu);
+	iommu_enable_command_buffer(iommu);
+	iommu_enable_event_buffer(iommu);
+	iommu_set_exclusion_range(iommu);
+	iommu_enable(iommu);
+	iommu_flush_all_caches(iommu);
+}
+
 /*
  * This function finally enables all IOMMUs found in the system after
  * they have been initialized
@@ -1681,16 +1693,8 @@ static void early_enable_iommus(void)
 {
 	struct amd_iommu *iommu;
 
-	for_each_iommu(iommu) {
-		iommu_disable(iommu);
-		iommu_init_flags(iommu);
-		iommu_set_device_table(iommu);
-		iommu_enable_command_buffer(iommu);
-		iommu_enable_event_buffer(iommu);
-		iommu_set_exclusion_range(iommu);
-		iommu_enable(iommu);
-		iommu_flush_all_caches(iommu);
-	}
+	for_each_iommu(iommu)
+		early_enable_iommu(iommu);
 }
 
 static void enable_iommus_v2(void)
-- 
2.5.5

[Patch v4 5/9] iommu/amd: Define bit fields for DTE particularly

[Baoquan He]

In amd-vi spec several bits of IO PTE fields and DTE fields are similar
so that both of them can share the same MACRO definition. However
defining their respecitve bit fields can make code more read-able. So
do it in this patch.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu.c       | 10 +++++-----
 drivers/iommu/amd_iommu_types.h | 19 +++++++++++++++----
 2 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index cc636e6..1c916cc 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1401,9 +1401,9 @@ static int iommu_map_page(struct protection_domain *dom,
 
 	if (count > 1) {
 		__pte = PAGE_SIZE_PTE(phys_addr, page_size);
-		__pte |= PM_LEVEL_ENC(7) | IOMMU_PTE_P | IOMMU_PTE_FC;
+		__pte |= PM_LEVEL_ENC(7) | IOMMU_PTE_PR | IOMMU_PTE_FC;
 	} else
-		__pte = phys_addr | IOMMU_PTE_P | IOMMU_PTE_FC;
+		__pte = phys_addr | IOMMU_PTE_PR | IOMMU_PTE_FC;
 
 	if (prot & IOMMU_PROT_IR)
 		__pte |= IOMMU_PTE_IR;
@@ -2048,7 +2048,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
 
 	pte_root |= (domain->mode & DEV_ENTRY_MODE_MASK)
 		    << DEV_ENTRY_MODE_SHIFT;
-	pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | IOMMU_PTE_TV;
+	pte_root |= DTE_FLAG_IR | DTE_FLAG_IW | DTE_FLAG_V | DTE_FLAG_TV;
 
 	flags = amd_iommu_dev_table[devid].data[1];
 
@@ -2091,7 +2091,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
 static void clear_dte_entry(u16 devid)
 {
 	/* remove entry from the device table seen by the hardware */
-	amd_iommu_dev_table[devid].data[0]  = IOMMU_PTE_P | IOMMU_PTE_TV;
+	amd_iommu_dev_table[devid].data[0]  = DTE_FLAG_V | DTE_FLAG_TV;
 	amd_iommu_dev_table[devid].data[1] &= DTE_FLAG_MASK;
 
 	amd_iommu_apply_erratum_63(devid);
@@ -2533,7 +2533,7 @@ static dma_addr_t dma_ops_domain_map(struct dma_ops_domain *dom,
 	if (!pte)
 		return DMA_ERROR_CODE;
 
-	__pte = paddr | IOMMU_PTE_P | IOMMU_PTE_FC;
+	__pte = paddr | IOMMU_PTE_PR | IOMMU_PTE_FC;
 
 	if (direction == DMA_TO_DEVICE)
 		__pte |= IOMMU_PTE_IR;
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 01783cc..7796edf 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -239,7 +239,7 @@
 #define PM_LEVEL_INDEX(x, a)	(((a) >> PM_LEVEL_SHIFT((x))) & 0x1ffULL)
 #define PM_LEVEL_ENC(x)		(((x) << 9) & 0xe00ULL)
 #define PM_LEVEL_PDE(x, a)	((a) | PM_LEVEL_ENC((x)) | \
-				 IOMMU_PTE_P | IOMMU_PTE_IR | IOMMU_PTE_IW)
+				 IOMMU_PTE_PR | IOMMU_PTE_IR | IOMMU_PTE_IW)
 #define PM_PTE_LEVEL(pte)	(((pte) >> 9) & 0x7ULL)
 
 #define PM_MAP_4k		0
@@ -288,13 +288,24 @@
 #define PTE_LEVEL_PAGE_SIZE(level)			\
 	(1ULL << (12 + (9 * (level))))
 
-#define IOMMU_PTE_P  (1ULL << 0)
-#define IOMMU_PTE_TV (1ULL << 1)
+/*
+ * Bit value definition for I/O PTE fields
+ */
+#define IOMMU_PTE_PR (1ULL << 0)
 #define IOMMU_PTE_U  (1ULL << 59)
 #define IOMMU_PTE_FC (1ULL << 60)
 #define IOMMU_PTE_IR (1ULL << 61)
 #define IOMMU_PTE_IW (1ULL << 62)
 
+
+/*
+ * Bit value definition for DTE fields
+ */
+#define DTE_FLAG_V  (1ULL << 0)
+#define DTE_FLAG_TV (1ULL << 1)
+#define DTE_FLAG_IR (1ULL << 61)
+#define DTE_FLAG_IW (1ULL << 62)
+
 #define DTE_FLAG_IOTLB	(1ULL << 32)
 #define DTE_FLAG_GV	(1ULL << 55)
 #define DTE_FLAG_MASK	(0x3ffULL << 32)
@@ -316,7 +327,7 @@
 #define GCR3_VALID		0x01ULL
 
 #define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL)
-#define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_P)
+#define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_PR)
 #define IOMMU_PTE_PAGE(pte) (phys_to_virt((pte) & IOMMU_PAGE_MASK))
 #define IOMMU_PTE_MODE(pte) (((pte) >> 9) & 0x07)
 
-- 
2.5.5

[Patch v4 6/9] iommu/amd: Add function copy_dev_tables

[Baoquan He]

Add function copy_dev_tables to copy old DTE of the 1st kernel to
the new DTE table. Since all iommu share the same DTE table the
copy only need be done once as long as the physical address of
old DTE table is retrieved from iommu reg. Besides the old domain
id occupied in 1st kernel need be reserved in order to avoid touch
the old translation tables.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu.c       |  2 +-
 drivers/iommu/amd_iommu_init.c  | 38 ++++++++++++++++++++++++++++++++++++++
 drivers/iommu/amd_iommu_types.h |  1 +
 3 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 1c916cc..f3bd7fd 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2081,7 +2081,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
 		flags    |= tmp;
 	}
 
-	flags &= ~(0xffffUL);
+	flags &= ~DEV_DOMID_MASK;
 	flags |= domain->id;
 
 	amd_iommu_dev_table[devid].data[1]  = flags;
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 9c1aa54..71c7ac9 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -664,6 +664,44 @@ static int get_dev_entry_bit(u16 devid, u8 bit)
 }
 
 
+static int copy_dev_tables(void)
+{
+	u64 entry;
+	u32 lo, hi, devid;
+	phys_addr_t old_devtb_phys;
+	struct dev_table_entry *old_devtb;
+	u16 dom_id, dte_v;
+	struct amd_iommu *iommu;
+	static int copied;
+
+        for_each_iommu(iommu) {
+		if (!translation_pre_enabled()) {
+			pr_err("IOMMU:%d is not pre-enabled!/n", iommu->index);
+			return -1;
+		}
+
+		if (copied)
+			continue;
+
+                lo = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET);
+                hi = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET + 4);
+                entry = (((u64) hi) << 32) + lo;
+                old_devtb_phys = entry & PAGE_MASK;
+                old_devtb = memremap(old_devtb_phys, dev_table_size, MEMREMAP_WB);
+                for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) {
+                        amd_iommu_dev_table[devid] = old_devtb[devid];
+                        dom_id = amd_iommu_dev_table[devid].data[1] & DEV_DOMID_MASK;
+			dte_v = amd_iommu_dev_table[devid].data[0] & DTE_FLAG_V;
+			if (!dte_v)
+				continue;
+                        __set_bit(dom_id, amd_iommu_pd_alloc_bitmap);
+                }
+		memunmap(old_devtb);
+		copied = 1;
+        }
+	return 0;
+}
+
 void amd_iommu_apply_erratum_63(u16 devid)
 {
 	int sysmgt;
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 7796edf..34acd73 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -311,6 +311,7 @@
 #define DTE_FLAG_MASK	(0x3ffULL << 32)
 #define DTE_GLX_SHIFT	(56)
 #define DTE_GLX_MASK	(3)
+#define DEV_DOMID_MASK 	0xffffULL
 
 #define DTE_GCR3_VAL_A(x)	(((x) >> 12) & 0x00007ULL)
 #define DTE_GCR3_VAL_B(x)	(((x) >> 15) & 0x0ffffULL)
-- 
2.5.5

[Patch v4 7/9] iommu/amd: copy old trans table from old kernel

[Baoquan He]

From: Baoquan HE <bhe@dhcp-129-10.nay.redhat.com>

Here several things need be done:
1) Initialize amd_iommu_dev_table because it was set several times
   since kdump kernel reboot. We don't need the set because we will
   copy the content from old kernel.
2) Re-enable event/cmd buffer
3) Install the DTE table to reg
4) Flush all caches

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu_init.c | 47 +++++++++++++++++++++++++++++++++++++-----
 1 file changed, 42 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 71c7ac9..66a1fa5 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -35,7 +35,7 @@
 #include <asm/iommu_table.h>
 #include <asm/io_apic.h>
 #include <asm/irq_remapping.h>
-
+#include <linux/crash_dump.h>
 #include "amd_iommu_proto.h"
 #include "amd_iommu_types.h"
 #include "irq_remapping.h"
@@ -675,7 +675,7 @@ static int copy_dev_tables(void)
 	static int copied;
 
         for_each_iommu(iommu) {
-		if (!translation_pre_enabled()) {
+		if (!translation_pre_enabled(iommu)) {
 			pr_err("IOMMU:%d is not pre-enabled!/n", iommu->index);
 			return -1;
 		}
@@ -1160,8 +1160,13 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
 	iommu->int_enabled = false;
 
 	init_translation_status(iommu);
+	if (translation_pre_enabled(iommu) && !is_kdump_kernel()) {
+                        clear_translation_pre_enabled(iommu);
+                        pr_warn("Translation was enabled for IOMMU:%d but we are not in kdump mode\n",
+                                iommu->index);
+                }
 
-	if (translation_pre_enabled())
+	if (translation_pre_enabled(iommu))
 		pr_warn("Translation is already enabled - trying to copy translation structures\n");
 
 	ret = init_iommu_from_acpi(iommu, h);
@@ -1730,9 +1735,41 @@ static void early_enable_iommu(struct amd_iommu *iommu)
 static void early_enable_iommus(void)
 {
 	struct amd_iommu *iommu;
+	bool is_pre_enabled=false;
 
-	for_each_iommu(iommu)
-		early_enable_iommu(iommu);
+	for_each_iommu(iommu) {
+		if ( translation_pre_enabled(iommu) ) {
+			is_pre_enabled = true;
+			break;
+		}
+	}
+
+	if ( !is_pre_enabled) {
+		for_each_iommu(iommu)
+			early_enable_iommu(iommu);
+	} else {
+		if (copy_dev_tables()) {
+			pr_err("Failed to copy translation tables from previous kernel.\n");
+			/*
+			 * If failed to copy dev tables from old kernel, continue to proceed
+			 * as it does in normal kernel.
+			 */
+			for_each_iommu(iommu) {
+				clear_translation_pre_enabled(iommu);
+				early_enable_iommu(iommu);
+			}
+		} else {
+			pr_info("Copied translation tables from previous kernel.\n");
+			for_each_iommu(iommu) {
+				iommu_feature_disable(iommu, CONTROL_CMDBUF_EN);
+		                iommu_feature_disable(iommu, CONTROL_EVT_LOG_EN);
+		                iommu_enable_command_buffer(iommu);
+		                iommu_enable_event_buffer(iommu);
+		                iommu_set_device_table(iommu);
+		                iommu_flush_all_caches(iommu);
+			}
+		}
+	}
 }
 
 static void enable_iommus_v2(void)
-- 
2.5.5

[Patch v4 8/9] iommu/amd: Do not initialize dev tables again in kdump

[Baoquan He]

From: Baoquan HE <bhe@dhcp-129-10.nay.redhat.com>

The init should have been done in normal kernel, skip it in kdump
kernel. And clean up the function comments.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu_init.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 66a1fa5..47e5972 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1432,7 +1432,11 @@ static int __init amd_iommu_init_pci(void)
 			break;
 	}
 
-	init_device_table_dma();
+	for_each_iommu(iommu) {
+		if ( !translation_pre_enabled(iommu) )
+			init_device_table_dma();
+			break;
+	}
 
 	for_each_iommu(iommu)
 		iommu_flush_all_caches(iommu);
@@ -1612,8 +1616,7 @@ static int __init init_memory_definitions(struct acpi_table_header *table)
 }
 
 /*
- * Init the device table to not allow DMA access for devices and
- * suppress all page faults
+ * Init the device table to not allow DMA access for devices.
  */
 static void init_device_table_dma(void)
 {
-- 
2.5.5

[Patch v4 9/9] iommu/amd: Check the validation of irq table and domain id

[Baoquan He]

From: Baoquan HE <bhe@dhcp-129-10.nay.redhat.com>

If not valid just skip reserving the old domain id.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/iommu/amd_iommu.c       | 4 ----
 drivers/iommu/amd_iommu_init.c  | 5 +++--
 drivers/iommu/amd_iommu_types.h | 5 +++++
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index f3bd7fd..40c4a05 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3697,10 +3697,6 @@ struct amd_ir_data {
 
 static struct irq_chip amd_ir_chip;
 
-#define DTE_IRQ_PHYS_ADDR_MASK	(((1ULL << 45)-1) << 6)
-#define DTE_IRQ_REMAP_INTCTL    (2ULL << 60)
-#define DTE_IRQ_TABLE_LEN       (8ULL << 1)
-#define DTE_IRQ_REMAP_ENABLE    1ULL
 
 static void set_dte_irq_entry(u16 devid, struct irq_remap_table *table)
 {
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 47e5972..263704a 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -670,7 +670,7 @@ static int copy_dev_tables(void)
 	u32 lo, hi, devid;
 	phys_addr_t old_devtb_phys;
 	struct dev_table_entry *old_devtb;
-	u16 dom_id, dte_v;
+	u16 dom_id, dte_v, irq_v;
 	struct amd_iommu *iommu;
 	static int copied;
 
@@ -692,7 +692,8 @@ static int copy_dev_tables(void)
                         amd_iommu_dev_table[devid] = old_devtb[devid];
                         dom_id = amd_iommu_dev_table[devid].data[1] & DEV_DOMID_MASK;
 			dte_v = amd_iommu_dev_table[devid].data[0] & DTE_FLAG_V;
-			if (!dte_v)
+			irq_v = amd_iommu_dev_table[devid].data[2] & DTE_IRQ_REMAP_ENABLE;
+			if (!dte_v || !irq_v || !dom_id)
 				continue;
                         __set_bit(dom_id, amd_iommu_pd_alloc_bitmap);
                 }
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 34acd73..08340f5 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -224,6 +224,11 @@
 
 #define PPR_REQ_FAULT		0x01
 
+#define DTE_IRQ_PHYS_ADDR_MASK	(((1ULL << 45)-1) << 6)
+#define DTE_IRQ_REMAP_INTCTL    (2ULL << 60)
+#define DTE_IRQ_TABLE_LEN       (8ULL << 1)
+#define DTE_IRQ_REMAP_ENABLE    1ULL
+
 #define PAGE_MODE_NONE    0x00
 #define PAGE_MODE_1_LEVEL 0x01
 #define PAGE_MODE_2_LEVEL 0x02
-- 
2.5.5

Re: [Patch v4 0/9] *** Fix kdump failure in system with amd iommu***

[Baoquan He]

[-- Attachment #1: Type: text/plain, Size: 458 bytes --]

Hi Joerg,

Attachments are console log of normal kernel and kdump kernel on a test
machine at my hand, and the related information of lspci -vt and lspci
-vvv. Before I tried to defer the calling of set_dte_entry() until the
device driver try to call __map_single() to really allocate coherent
memory or do the mapping, seems it didn't work. I am surprised by the
simplicity and effectiveness of Intel IOMMU fix, but can't think of
where I have missed. 





[-- Attachment #2: lspci-vt.log --]
[-- Type: text/plain, Size: 2277 bytes --]

-[0000:00]-+-00.0  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Complex
           +-00.2  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) I/O Memory Management Unit
           +-01.0  Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R7 Graphics]
           +-01.1  Advanced Micro Devices, Inc. [AMD/ATI] Kaveri HDMI/DP Audio Controller
           +-02.0  Advanced Micro Devices, Inc. [AMD] Device 1424
           +-03.0  Advanced Micro Devices, Inc. [AMD] Device 1424
           +-03.1-[01]----00.0  Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           +-04.0  Advanced Micro Devices, Inc. [AMD] Device 1424
           +-10.0  Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller
           +-10.1  Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller
           +-11.0  Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [IDE mode]
           +-12.0  Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller
           +-12.2  Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller
           +-13.0  Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller
           +-13.2  Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller
           +-14.0  Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
           +-14.1  Advanced Micro Devices, Inc. [AMD] FCH IDE Controller
           +-14.2  Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller
           +-14.3  Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
           +-14.4-[02]--
           +-14.5  Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller
           +-18.0  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 0
           +-18.1  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 1
           +-18.2  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 2
           +-18.3  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 3
           +-18.4  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 4
           \-18.5  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 5

[-- Attachment #3: lspci-vvv.log --]
[-- Type: text/plain, Size: 0 bytes --]



[-- Attachment #4: amd_iommu.log --]
[-- Type: text/plain, Size: 136032 bytes --]

[    0.000000] Linux version 4.6.0-rc7+ (bhe@dhcp-129-10.nay.redhat.com) (gcc version 5.1.1 20150618 (Red Hat 5.1.1-4) (GCC) ) #34 SMP Tue May 24 17:6
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-4.6.0-rc7+ root=/dev/mapper/fedora_dhcp--129--10-root ro rd.lvm.lv=fedora_dhcp-129-10/root rd.lvm.lvl
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[    0.000000] x86/fpu: Using 'eager' FPU context switches.
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007cc99fff] usable
[    0.000000] BIOS-e820: [mem 0x000000007cc9a000-0x000000007ccc9fff] reserved
[    0.000000] BIOS-e820: [mem 0x000000007ccca000-0x000000007cf9ffff] usable
[    0.000000] BIOS-e820: [mem 0x000000007cfa0000-0x000000007d06dfff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000007d06e000-0x000000007e1c7fff] reserved
[    0.000000] BIOS-e820: [mem 0x000000007e1c8000-0x000000007e1c8fff] usable
[    0.000000] BIOS-e820: [mem 0x000000007e1c9000-0x000000007e3cefff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000007e3cf000-0x000000007e850fff] usable
[    0.000000] BIOS-e820: [mem 0x000000007e851000-0x000000007efe1fff] reserved
[    0.000000] BIOS-e820: [mem 0x000000007efe2000-0x000000007effffff] usable
[    0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec01fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fec10000-0x00000000fec10fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed00000-0x00000000fed00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed40000-0x00000000fed44fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed80000-0x00000000fed8ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000023effffff] usable
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] SMBIOS 2.7 present.
[    0.000000] e820: last_pfn = 0x23f000 max_arch_pfn = 0x400000000
[    0.000000] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WC  UC- WT  
[    0.000000] e820: last_pfn = 0x7f000 max_arch_pfn = 0x400000000
[    0.000000] Scan for SMP in [mem 0x00000000-0x000003ff]
[    0.000000] Scan for SMP in [mem 0x0009fc00-0x0009ffff]
[    0.000000] Scan for SMP in [mem 0x000f0000-0x000fffff]
[    0.000000] found SMP MP-table at [mem 0x000fd6f0-0x000fd6ff] mapped at [ffff8800000fd6f0]
[    0.000000]   mpc: fd430-fd66c
[    0.000000] Using GB pages for direct mapping
[    0.000000] RAMDISK: [mem 0x35663000-0x36b29fff]
[    0.000000] ACPI: Early table checksum verification disabled
[    0.000000] ACPI: RSDP 0x00000000000F0490 000024 (v02 ALASKA)
[    0.000000] ACPI: XSDT 0x000000007D024080 000084 (v01 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI: FACP 0x000000007D02A598 00010C (v05 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI BIOS Warning (bug): Optional FADT field Pm2ControlBlock has zero address or length: 0x0000000000000000/0x1 (20160108/tbfadt-654)
[    0.000000] ACPI: DSDT 0x000000007D0241A0 0063F2 (v02 ALASKA A M I    00000088 INTL 20051117)
[    0.000000] ACPI: FACS 0x000000007D063080 000040
[    0.000000] ACPI: APIC 0x000000007D02A6A8 00007E (v03 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI: FPDT 0x000000007D02A728 000044 (v01 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI: MCFG 0x000000007D02A770 00003C (v01 ALASKA A M I    01072009 MSFT 00010013)
[    0.000000] ACPI: HPET 0x000000007D02A7B0 000038 (v01 ALASKA A M I    01072009 AMI  00000005)
[    0.000000] ACPI: WDRT 0x000000007D02A7E8 000047 (v01 ALASKA A M I    01072009 AMI  00000005)
[    0.000000] ACPI: IVRS 0x000000007D02A830 000078 (v02 AMD    BANTRY   00000001 AMD  00000000)
[    0.000000] ACPI: SSDT 0x000000007D02A8A8 000B9C (v01 AMD    BANTRY   00000001 AMD  00000001)
[    0.000000] ACPI: SSDT 0x000000007D02B448 00033B (v02 AMD    BANTRY   00000002 MSFT 04000000)
[    0.000000] ACPI: CRAT 0x000000007D02B788 000550 (v01 AMD    BANTRY   00000001 AMD  00000001)
[    0.000000] ACPI: SSDT 0x000000007D02BCD8 001457 (v01 AMD    CPMDFIGP 00000001 INTL 20051117)
[    0.000000] ACPI: SSDT 0x000000007D02D130 00122C (v01 AMD    CPMCMN   00000001 INTL 20051117)
[    0.000000] mapped APIC to ffffffffff5fc000 (        fee00000)
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at [mem 0x0000000000000000-0x000000023effffff]
[    0.000000] NODE_DATA(0) allocated [mem 0x23efe9000-0x23effafff]
[    0.000000] Reserving 256MB of memory at 592MB for crashkernel (System RAM: 7107MB)
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.000000]   DMA32    [mem 0x0000000001000000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x000000023effffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000001000-0x000000000009efff]
[    0.000000]   node   0: [mem 0x0000000000100000-0x000000007cc99fff]
[    0.000000]   node   0: [mem 0x000000007ccca000-0x000000007cf9ffff]
[    0.000000]   node   0: [mem 0x000000007e1c8000-0x000000007e1c8fff]
[    0.000000]   node   0: [mem 0x000000007e3cf000-0x000000007e850fff]
[    0.000000]   node   0: [mem 0x000000007efe2000-0x000000007effffff]
[    0.000000]   node   0: [mem 0x0000000100000000-0x000000023effffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000023effffff]
[    0.000000] ACPI: PM-Timer IO Port: 0x808
[    0.000000] mapped APIC to ffffffffff5fc000 (        fee00000)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[    0.000000] IOAPIC[0]: apic_id 0, version 33, address 0xfec00000, GSI 0-23
[    0.000000] IOAPIC[1]: apic_id 1, version 33, address 0xfec01000, GSI 24-55
[    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 0, APIC INT 02
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
[    0.000000] Int: type 0, pol 3, trig 3, bus 00, IRQ 09, APIC ID 0, APIC INT 09
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 0, APIC INT 01
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 0, APIC INT 03
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 04
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 05, APIC ID 0, APIC INT 05
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 0, APIC INT 06
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 0, APIC INT 07
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 0, APIC INT 08
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0a, APIC ID 0, APIC INT 0a
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0b, APIC ID 0, APIC INT 0b
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0c
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 0, APIC INT 0d
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 0, APIC INT 0e
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 0, APIC INT 0f
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x10228210 base: 0xfed00000
[    0.000000] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
[    0.000000] mapped IOAPIC to ffffffffff5fb000 (fec00000)
[    0.000000] mapped IOAPIC to ffffffffff5fa000 (fec01000)
[    0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000dffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000e0000-0x000fffff]
[    0.000000] PM: Registered nosave memory: [mem 0x7cc9a000-0x7ccc9fff]
[    0.000000] PM: Registered nosave memory: [mem 0x7cfa0000-0x7d06dfff]
[    0.000000] PM: Registered nosave memory: [mem 0x7d06e000-0x7e1c7fff]
[    0.000000] PM: Registered nosave memory: [mem 0x7e1c9000-0x7e3cefff]
[    0.000000] PM: Registered nosave memory: [mem 0x7e851000-0x7efe1fff]
[    0.000000] PM: Registered nosave memory: [mem 0x7f000000-0xfebfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec01fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec02000-0xfec0ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec10000-0xfec10fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec11000-0xfecfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed00000-0xfed00fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed01000-0xfed3ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed40000-0xfed44fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed45000-0xfed7ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed80000-0xfed8ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed90000-0xfeffffff]
[    0.000000] PM: Registered nosave memory: [mem 0xff000000-0xffffffff]
[    0.000000] e820: [mem 0x7f000000-0xfebfffff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on bare hardware
[    0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[    0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:4 nr_node_ids:1
[    0.000000] percpu: Embedded 34 pages/cpu @ffff88023ec00000 s98776 r8192 d32296 u524288
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total pages: 1791113
[    0.000000] Policy zone: Normal
[    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.6.0-rc7+ root=/dev/mapper/fedora_dhcp--129--10-root ro rd.lvm.lv=fedora_dhcp-129-10/root rdl
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Memory: 6796480K/7278268K available (7903K kernel code, 1294K rwdata, 3188K rodata, 1536K init, 1468K bss, 481788K reserved, 0K cma-re)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 64.
[    0.000000]  RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=4
[    0.000000] NR_IRQS:4352 nr_irqs:1000 16
[    0.000000]  Offload RCU callbacks from all CPUs
[    0.000000]  Offload RCU callbacks from CPUs: 0-3.
[    0.000000] Console: colour VGA+ 80x25
[    0.000000] console [tty0] enabled
[    0.000000] console [ttyS0] enabled
[    0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484873504 ns
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 3693.324 MHz processor
[    0.000023] Calibrating delay loop (skipped), value calculated using timer frequency.. 7386.64 BogoMIPS (lpj=3693324)
[    0.010821] pid_max: default: 32768 minimum: 301
[    0.015544] ACPI: Core revision 20160108
[    0.023313] ACPI: 5 ACPI AML tables successfully acquired and loaded
[    0.031540] 
[    0.033151] Security Framework initialized
[    0.037344] Yama: becoming mindful.
[    0.040935] SELinux:  Initializing.
[    0.045029] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.054691] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.062900] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.069919] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.077629] CPU: Physical Processor ID: 0
[    0.081792] CPU: Processor Core ID: 0
[    0.085557] mce: CPU supports 7 MCE banks
[    0.089671] LVT offset 1 assigned for vector 0xf9
[    0.094460] Last level iTLB entries: 4KB 512, 2MB 1024, 4MB 512
[    0.100463] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 512, 1GB 0
[    0.107427] Freeing SMP alternatives memory: 32K (ffffffff81ec5000 - ffffffff81ecd000)
[    0.117817] ftrace: allocating 29742 entries in 117 pages
[    0.132879] smpboot: Max logical packages: 2
[    0.137287] smpboot: APIC(10) Converting physical 1 to logical package 0
[    0.144611] AMD-Vi: device: 00:00.2 cap: 0040 seg: 0 flags: b8 info 0000
[    0.151442] AMD-Vi:        mmio-addr: 00000000feb80000
[    0.156689] AMD-Vi:   DEV_SELECT_RANGE_START  devid: 00:01.0 flags: 00
[    0.163316] AMD-Vi:   DEV_RANGE_END           devid: ff:1f.6
[    0.168875] AMD-Vi:   DEV_ALIAS_RANGE                 devid: 02:00.0 flags: 00 devid_to: 00:14.4
[    0.176602] AMD-Vi:   DEV_RANGE_END           devid: 02:1f.7
[    0.181674] AMD-Vi:   DEV_SPECIAL(HPET[0])           devid: 00:14.0
[    0.187259] AMD-Vi:   DEV_SPECIAL(IOAPIC[0])         devid: 00:14.0
[    0.193014] AMD-Vi:   DEV_SPECIAL(IOAPIC[1])         devid: 00:00.0
[    0.275798] enabled ExtINT on CPU#0
[    0.279622] ENABLING IO-APIC IRQs
[    0.283285] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.299386] Using local APIC timer interrupts.
[    0.299386] calibrating APIC timer ...
[    0.409172] ... lapic delta = 623858
[    0.412858] ... PM-Timer delta = 357951
[    0.416787] ... PM-Timer result ok
[    0.420283] ..... delta 623858
[    0.423447] ..... mult: 26794497
[    0.426772] ..... calibration result: 99817
[    0.431054] ..... CPU clock speed is 3693.0244 MHz.
[    0.436029] ..... host bus clock speed is 99.0817 MHz.
[    0.441270] smpboot: CPU0: AMD A10-7850K Radeon R7, 12 Compute Cores 4C+8G (family: 0x15, model: 0x30, stepping: 0x1)
[    0.452198] Performance Events: Fam15h core perfctr, AMD PMU driver.
[    0.458779] ... version:                0
[    0.462888] ... bit width:              48
[    0.467081] ... generic registers:      6
[    0.471191] ... value mask:             0000ffffffffffff
[    0.476599] ... max period:             00007fffffffffff
[    0.482005] ... fixed-purpose events:   0
[    0.486113] ... event mask:             000000000000003f
[    0.492136] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
[    0.500444] x86: Booting SMP configuration:
[    0.504723] .... node  #0, CPUs:      #1
[    0.508790] masked ExtINT on CPU#1
[    0.574481]  #2
[    0.576243] masked ExtINT on CPU#2
[    0.641428]  #3
[    0.643156] masked ExtINT on CPU#3
[    0.708351] x86: Booted up 1 node, 4 CPUs
[    0.712534] smpboot: Total of 4 processors activated (29540.57 BogoMIPS)
[    0.720256] devtmpfs: initialized
[    0.723759] x86/mm: Memory block size: 128MB
[    0.730410] PM: Registering ACPI NVS region [mem 0x7cfa0000-0x7d06dfff] (843776 bytes)
[    0.738534] PM: Registering ACPI NVS region [mem 0x7e1c9000-0x7e3cefff] (2121728 bytes)
[    0.746765] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[    0.756697] atomic64_test: passed for x86-64 platform with CX8 and with SSE
[    0.763775] pinctrl core: initialized pinctrl subsystem
[    0.769136] RTC time:  6:50:29, date: 05/25/16
[    0.773850] NET: Registered protocol family 16
[    0.781365] cpuidle: using governor menu
[    0.785628] ACPI: bus type PCI registered
[    0.789742] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.796397] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[    0.805829] PCI: not using MMCONFIG
[    0.809413] PCI: Using configuration type 1 for base access
[    0.815079] PCI: Using configuration type 1 for extended access
[    0.825565] HugeTLB registered 1 GB page size, pre-allocated 0 pages
[    0.832027] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.838839] ACPI: Added _OSI(Module Device)
[    0.843152] ACPI: Added _OSI(Processor Device)
[    0.847700] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.852503] ACPI: Added _OSI(Processor Aggregator Device)
[    0.858385] ACPI: Executed 1 blocks of module-level executable AML code
[    0.868360] ACPI: Interpreter enabled
[    0.872182] ACPI: (supports S0 S3 S4 S5)
[    0.876206] ACPI: Using IOAPIC for interrupt routing
[    0.881388] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[    0.890849] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources
[    0.899688] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.909340] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[    0.917422] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[    0.925505] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[    0.937814] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.944096] acpi PNP0A03:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
[    0.952567] acpi PNP0A03:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]
[    0.960966] PCI host bridge to bus 0000:00
[    0.965161] pci_bus 0000:00: root bus resource [io  0x0000-0x03af window]
[    0.972041] pci_bus 0000:00: root bus resource [io  0x03e0-0x0cf7 window]
[    0.978923] pci_bus 0000:00: root bus resource [io  0x03b0-0x03df window]
[    0.985801] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    0.992685] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[    1.000297] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000dffff window]
[    1.007898] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xffffffff window]
[    1.015506] pci_bus 0000:00: root bus resource [bus 00-ff]
[    1.021797] pci 0000:00:03.1: System wakeup disabled by ACPI
[    1.027860] pci 0000:00:10.0: System wakeup disabled by ACPI
[    1.033790] pci 0000:00:10.1: System wakeup disabled by ACPI
[    1.039653] pci 0000:00:11.0: set SATA to AHCI mode
[    1.044791] pci 0000:00:12.0: System wakeup disabled by ACPI
[    1.050686] pci 0000:00:12.2: System wakeup disabled by ACPI
[    1.056557] pci 0000:00:13.0: System wakeup disabled by ACPI
[    1.062457] pci 0000:00:13.2: System wakeup disabled by ACPI
[    1.068438] pci 0000:00:14.1: legacy IDE quirk: reg 0x10: [io  0x01f0-0x01f7]
[    1.075667] pci 0000:00:14.1: legacy IDE quirk: reg 0x14: [io  0x03f6]
[    1.082289] pci 0000:00:14.1: legacy IDE quirk: reg 0x18: [io  0x0170-0x0177]
[    1.089517] pci 0000:00:14.1: legacy IDE quirk: reg 0x1c: [io  0x0376]
[    1.096328] pci 0000:00:14.2: System wakeup disabled by ACPI
[    1.102357] pci 0000:00:14.4: System wakeup disabled by ACPI
[    1.108247] pci 0000:00:14.5: System wakeup disabled by ACPI
[    1.116260] pci 0000:00:03.1: PCI bridge to [bus 01]
[    1.121414] pci 0000:00:14.4: PCI bridge to [bus 02] (subtractive decode)
[    1.128790] ACPI: PCI Interrupt Link [LNKA] (IRQs 4 5 7 10 11 14 15) *0
[    1.135993] ACPI: PCI Interrupt Link [LNKB] (IRQs 4 5 7 10 11 14 15) *0
[    1.143204] ACPI: PCI Interrupt Link [LNKC] (IRQs 4 5 7 10 11 14 15) *0
[    1.150430] ACPI: PCI Interrupt Link [LNKD] (IRQs 4 5 7 10 11 14 15) *0
[    1.157608] ACPI: PCI Interrupt Link [LNKE] (IRQs 4 5 7 10 11 14 15) *0
[    1.164803] ACPI: PCI Interrupt Link [LNKF] (IRQs 4 5 7 10 11 14 15) *0
[    1.171979] ACPI: PCI Interrupt Link [LNKG] (IRQs 4 5 7 10 11 14 15) *0
[    1.179171] ACPI: PCI Interrupt Link [LNKH] (IRQs 4 5 7 10 11 14 15) *0
[    1.186593] vgaarb: setting as boot device: PCI:0000:00:01.0
[    1.192362] vgaarb: device added: PCI:0000:00:01.0,decodes=io+mem,owns=io+mem,locks=none
[    1.200589] vgaarb: loaded
[    1.203396] vgaarb: bridge control possible 0000:00:01.0
[    1.208883] SCSI subsystem initialized
[    1.212898] ACPI: bus type USB registered
[    1.217049] usbcore: registered new interface driver usbfs
[    1.222640] usbcore: registered new interface driver hub
[    1.228067] usbcore: registered new device driver usb
[    1.233373] PCI: Using ACPI for IRQ routing
[    1.244487] NetLabel: Initializing
[    1.247994] NetLabel:  domain hash size = 128
[    1.252446] NetLabel:  protocols = UNLABELED CIPSOv4
[    1.257519] NetLabel:  unlabeled traffic allowed by default
[    1.263378] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    1.268540] hpet0: 3 comparators, 32-bit 14.318180 MHz counter
[    1.277520] clocksource: Switched to clocksource hpet
[    1.289710] VFS: Disk quotas dquot_6.6.0
[    1.293759] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    1.300848] pnp: PnP ACPI init
[    1.304124] system 00:00: [mem 0xe0000000-0xefffffff] has been reserved
[    1.310920] system 00:01: [mem 0x80000000-0xbfffffff] has been reserved
[    1.317720] system 00:02: [mem 0xfeb80000-0xfebfffff] could not be reserved
[    1.324927] system 00:03: [io  0x0220-0x0227] has been reserved
[    1.330971] system 00:03: [io  0x0228-0x0237] has been reserved
[    1.336984] system 00:03: [io  0x0a20-0x0a2f] has been reserved
[    1.343467] system 00:07: [io  0x04d0-0x04d1] has been reserved
[    1.349734] system 00:08: [io  0x04d0-0x04d1] has been reserved
[    1.355757] system 00:08: [io  0x040b] has been reserved
[    1.361165] system 00:08: [io  0x04d6] has been reserved
[    1.366554] system 00:08: [io  0x0c00-0x0c01] has been reserved
[    1.372550] system 00:08: [io  0x0c14] has been reserved
[    1.377959] system 00:08: [io  0x0c50-0x0c51] has been reserved
[    1.383974] system 00:08: [io  0x0c52] has been reserved
[    1.389382] system 00:08: [io  0x0c6c] has been reserved
[    1.396453] system 00:08: [io  0x0c6f] has been reserved
[    1.401860] system 00:08: [io  0x0cd0-0x0cd1] has been reserved
[    1.407877] system 00:08: [io  0x0cd2-0x0cd3] has been reserved
[    1.413892] system 00:08: [io  0x0cd4-0x0cd5] has been reserved
[    1.419907] system 00:08: [io  0x0cd6-0x0cd7] has been reserved
[    1.425921] system 00:08: [io  0x0cd8-0x0cdf] has been reserved
[    1.431936] system 00:08: [io  0x0800-0x089f] could not be reserved
[    1.438307] system 00:08: [io  0x0b20-0x0b3f] has been reserved
[    1.444320] system 00:08: [io  0x0900-0x090f] has been reserved
[    1.450334] system 00:08: [io  0x0910-0x091f] has been reserved
[    1.456349] system 00:08: [io  0xfe00-0xfefe] has been reserved
[    1.462365] system 00:08: [mem 0xfec00000-0xfec00fff] could not be reserved
[    1.469418] system 00:08: [mem 0xfee00000-0xfee00fff] has been reserved
[    1.476126] system 00:08: [mem 0xfed80000-0xfed8ffff] has been reserved
[    1.482851] system 00:08: [mem 0xfed61000-0xfed70fff] has been reserved
[    1.489543] system 00:08: [mem 0xfec10000-0xfec10fff] has been reserved
[    1.496251] system 00:08: [mem 0xfed00000-0xfed00fff] could not be reserved
[    1.503305] system 00:08: [mem 0xff000000-0xffffffff] has been reserved
[    1.510150] pnp: PnP ACPI: found 9 devices
[    1.520896] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    1.529909] pci 0000:00:03.1: PCI bridge to [bus 01]
[    1.534974] pci 0000:00:03.1:   bridge window [io  0xe000-0xefff]
[    1.541162] pci 0000:00:03.1:   bridge window [mem 0xfea00000-0xfeafffff]
[    1.548041] pci 0000:00:03.1:   bridge window [mem 0xd0800000-0xd08fffff 64bit pref]
[    1.555916] pci 0000:00:14.4: PCI bridge to [bus 02]
[    1.561039] NET: Registered protocol family 2
[    1.565702] TCP established hash table entries: 65536 (order: 7, 524288 bytes)
[    1.573245] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    1.580227] TCP: Hash tables configured (established 65536 bind 65536)
[    1.586885] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    1.593107] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[    1.599817] NET: Registered protocol family 1
[    1.604317] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    1.851961] Unpacking initramfs...
[    2.172878] Freeing initrd memory: 21276K (ffff880035663000 - ffff880036b2a000)
[    2.180474] AMD-Vi: IOMMU performance counters supported
[    2.185907] AMD-Vi: Applying ATS write check workaround for IOMMU at 0000:00:00.2
[    2.193663] pci 0000:00:00.2: can't derive routing for PCI INT A
[    2.199808] pci 0000:00:00.2: PCI INT A: not connected
[    2.205899] iommu: Adding device 0000:00:00.0 to group 0
[    2.211798] iommu: Adding device 0000:00:01.0 to group 1
[    2.217231] iommu: Using direct mapping for device 0000:00:01.0
[    2.223272] iommu: Adding device 0000:00:01.1 to group 1
[    2.228957] iommu: Adding device 0000:00:02.0 to group 2
[    2.234834] iommu: Adding device 0000:00:03.0 to group 3
[    2.240332] iommu: Adding device 0000:00:03.1 to group 3
[    2.246078] iommu: Adding device 0000:00:04.0 to group 4
[    2.251895] iommu: Adding device 0000:00:10.0 to group 5
[    2.257391] iommu: Adding device 0000:00:10.1 to group 5
[    2.263130] iommu: Adding device 0000:00:11.0 to group 6
[    2.268938] iommu: Adding device 0000:00:12.0 to group 7
[    2.274434] iommu: Adding device 0000:00:12.2 to group 7
[    2.280186] iommu: Adding device 0000:00:13.0 to group 8
[    2.285680] iommu: Adding device 0000:00:13.2 to group 8
[    2.291430] iommu: Adding device 0000:00:14.0 to group 9
[    2.296930] iommu: Adding device 0000:00:14.1 to group 9
[    2.302364] iommu: Adding device 0000:00:14.2 to group 9
[    2.307794] iommu: Adding device 0000:00:14.3 to group 9
[    2.313599] iommu: Adding device 0000:00:14.4 to group 10
[    2.319429] iommu: Adding device 0000:00:14.5 to group 11
[    2.325342] iommu: Adding device 0000:00:18.0 to group 12
[    2.330926] iommu: Adding device 0000:00:18.1 to group 12
[    2.336447] iommu: Adding device 0000:00:18.2 to group 12
[    2.341965] iommu: Adding device 0000:00:18.3 to group 12
[    2.347487] iommu: Adding device 0000:00:18.4 to group 12
[    2.353009] iommu: Adding device 0000:00:18.5 to group 12
[    2.358524] iommu: Adding device 0000:01:00.0 to group 3
[    2.363950] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
[    2.369377] AMD-Vi:  Extended features:  PPR GT IA PC
[    2.374769] AMD-Vi: Interrupt remapping enabled
[    2.379725] AMD-Vi: Lazy IO/TLB flushing enabled
[    2.386298] perf: AMD NB counters detected
[    2.390685] LVT offset 0 assigned for vector 0x400
[    2.395690] perf: AMD IBS detected (0x000001ff)
[    2.400337] perf: amd_iommu: Detected. (2 banks, 4 counters/bank)
[    2.407469] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    2.413821] audit: initializing netlink subsys (disabled)
[    2.419352] audit: type=2000 audit(1464159028.886:1): initialized
[    2.425866] Initialise system trusted keyring
[    2.430634] workingset: timestamp_bits=35 max_order=21 bucket_order=0
[    2.438887] zbud: loaded
[    2.442076] Key type big_key registered
[    2.489616] NET: Registered protocol family 38
[    2.494195] Key type asymmetric registered
[    2.498408] Asymmetric key parser 'x509' registered
[    2.503455] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    2.511095] io scheduler noop registered
[    2.515133] io scheduler deadline registered
[    2.519546] io scheduler cfq registered (default)
[    2.524705] pcieport 0000:00:03.1: Signaling PME through PCIe PME interrupt
[    2.531808] pci 0000:01:00.0: Signaling PME through PCIe PME interrupt
[    2.538453] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    2.544141] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[    2.550948] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0
[    2.559486] ACPI: Power Button [PWRB]
[    2.563295] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
[    2.570851] ACPI: Power Button [PWRF]
[    2.575158] GHES: HEST is not enabled!
[    2.579126] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    2.606147] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    2.614092] Non-volatile memory driver v1.3
[    2.618423] Linux agpgart interface v0.103
[    2.623595] ahci 0000:00:11.0: AHCI 0001.0300 32 slots 4 ports 6 Gbps 0xf impl SATA mode
[    2.631848] ahci 0000:00:11.0: flags: 64bit ncq sntf ilck pm led clo pmp pio slum part 
[    2.640644] scsi host0: ahci
[    2.643940] scsi host1: ahci
[    2.647256] scsi host2: ahci
[    2.650481] scsi host3: ahci
[    2.653601] ata1: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71100 irq 19
[    2.661155] ata2: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71180 irq 19
[    2.668714] ata3: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71200 irq 19
[    2.676267] ata4: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71280 irq 19
[    2.683941] libphy: Fixed MDIO Bus: probed
[    2.688328] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    2.694966] ehci-pci: EHCI PCI platform driver
[    2.699680] ehci-pci 0000:00:12.2: EHCI Host Controller
[    2.705193] ehci-pci 0000:00:12.2: new USB bus registered, assigned bus number 1
[    2.712747] ehci-pci 0000:00:12.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[    2.721614] ehci-pci 0000:00:12.2: debug port 1
[    2.726290] ehci-pci 0000:00:12.2: irq 17, io mem 0xfeb6f000
[    2.737746] ehci-pci 0000:00:12.2: USB 2.0 started, EHCI 1.00
[    2.743674] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    2.750604] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.757983] usb usb1: Product: EHCI Host Controller
[    2.762966] usb usb1: Manufacturer: Linux 4.6.0-rc7+ ehci_hcd
[    2.768819] usb usb1: SerialNumber: 0000:00:12.2
[    2.773785] hub 1-0:1.0: USB hub found
[    2.777690] hub 1-0:1.0: 5 ports detected
[    2.782123] ehci-pci 0000:00:13.2: EHCI Host Controller
[    2.787696] ehci-pci 0000:00:13.2: new USB bus registered, assigned bus number 2
[    2.795257] ehci-pci 0000:00:13.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[    2.804117] ehci-pci 0000:00:13.2: debug port 1
[    2.808789] ehci-pci 0000:00:13.2: irq 17, io mem 0xfeb6d000
[    2.820735] ehci-pci 0000:00:13.2: USB 2.0 started, EHCI 1.00
[    2.826645] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[    2.833576] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.840959] usb usb2: Product: EHCI Host Controller
[    2.845947] usb usb2: Manufacturer: Linux 4.6.0-rc7+ ehci_hcd
[    2.851802] usb usb2: SerialNumber: 0000:00:13.2
[    2.856786] hub 2-0:1.0: USB hub found
[    2.860682] hub 2-0:1.0: 5 ports detected
[    2.865000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    2.871302] ohci-pci: OHCI PCI platform driver
[    2.875990] ohci-pci 0000:00:12.0: OHCI PCI host controller
[    2.881864] ohci-pci 0000:00:12.0: new USB bus registered, assigned bus number 3
[    2.889477] ohci-pci 0000:00:12.0: irq 18, io mem 0xfeb70000
[    2.949837] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[    2.956761] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.964161] usb usb3: Product: OHCI PCI host controller
[    2.969497] usb usb3: Manufacturer: Linux 4.6.0-rc7+ ohci_hcd
[    2.975347] usb usb3: SerialNumber: 0000:00:12.0
[    2.980314] hub 3-0:1.0: USB hub found
[    2.984257] hub 3-0:1.0: 5 ports detected
[    2.988685] ohci-pci 0000:00:13.0: OHCI PCI host controller
[    2.989920] ata1: SATA link down (SStatus 0 SControl 300)
[    2.993656] ata3: SATA link down (SStatus 0 SControl 300)
[    2.994599] ata2: SATA link down (SStatus 0 SControl 300)
[    3.012918] ohci-pci 0000:00:13.0: new USB bus registered, assigned bus number 4
[    3.020511] ohci-pci 0000:00:13.0: irq 18, io mem 0xfeb6e000
[    3.080831] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
[    3.087723] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.095085] usb usb4: Product: OHCI PCI host controller
[    3.100414] usb usb4: Manufacturer: Linux 4.6.0-rc7+ ohci_hcd
[    3.106264] usb usb4: SerialNumber: 0000:00:13.0
[    3.111336] hub 4-0:1.0: USB hub found
[    3.115232] hub 4-0:1.0: 5 ports detected
[    3.119637] ohci-pci 0000:00:14.5: OHCI PCI host controller
[    3.125478] ohci-pci 0000:00:14.5: new USB bus registered, assigned bus number 5
[    3.133026] ohci-pci 0000:00:14.5: irq 18, io mem 0xfeb6c000
[    3.142742] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    3.150798] ata4.00: ATA-8: ST31000524NS, SN12, max UDMA/133
[    3.156567] ata4.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 31/32)
[    3.165378] ata4.00: configured for UDMA/133
[    3.170144] scsi 3:0:0:0: Direct-Access     ATA      ST31000524NS     SN12 PQ: 0 ANSI: 5
[    3.185066] sd 3:0:0:0: Attached scsi generic sg0 type 0
[    3.185107] sd 3:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
[    3.185216] sd 3:0:0:0: [sda] Write Protect is off
[    3.185260] sd 3:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    3.193693] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
[    3.193695] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.193696] usb usb5: Product: OHCI PCI host controller
[    3.193697] usb usb5: Manufacturer: Linux 4.6.0-rc7+ ohci_hcd
[    3.193697] usb usb5: SerialNumber: 0000:00:14.5
[    3.193842] hub 5-0:1.0: USB hub found
[    3.193850] hub 5-0:1.0: 2 ports detected
[    3.193962] uhci_hcd: USB Universal Host Controller Interface driver
[    3.194112] xhci_hcd 0000:00:10.0: xHCI Host Controller
[    3.194165] xhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 6
[    3.194394] xhci_hcd 0000:00:10.0: hcc params 0x014040c3 hci version 0x100 quirks 0x00000418
[    3.194589] usb usb6: New USB device found, idVendor=1d6b, idProduct=0002
[    3.194590] usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.194591] usb usb6: Product: xHCI Host Controller
[    3.194592] usb usb6: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.194593] usb usb6: SerialNumber: 0000:00:10.0
[    3.194692] hub 6-0:1.0: USB hub found
[    3.194699] hub 6-0:1.0: 2 ports detected
[    3.194775] xhci_hcd 0000:00:10.0: xHCI Host Controller
[    3.194819] xhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 7
[    3.196602]  sda: sda1 sda2
[    3.196862] sd 3:0:0:0: [sda] Attached SCSI disk
[    3.197773] usb usb7: We don't know the algorithms for LPM for this host, disabling LPM.
[    3.197786] usb usb7: New USB device found, idVendor=1d6b, idProduct=0003
[    3.197787] usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.197788] usb usb7: Product: xHCI Host Controller
[    3.197789] usb usb7: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.197789] usb usb7: SerialNumber: 0000:00:10.0
[    3.197884] hub 7-0:1.0: USB hub found
[    3.197891] hub 7-0:1.0: 2 ports detected
[    3.198045] xhci_hcd 0000:00:10.1: xHCI Host Controller
[    3.198098] xhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 8
[    3.198311] xhci_hcd 0000:00:10.1: hcc params 0x014040c3 hci version 0x100 quirks 0x00000418
[    3.198489] usb usb8: New USB device found, idVendor=1d6b, idProduct=0002
[    3.198491] usb usb8: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.198491] usb usb8: Product: xHCI Host Controller
[    3.198492] usb usb8: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.198493] usb usb8: SerialNumber: 0000:00:10.1
[    3.198596] hub 8-0:1.0: USB hub found
[    3.198602] hub 8-0:1.0: 2 ports detected
[    3.198677] xhci_hcd 0000:00:10.1: xHCI Host Controller
[    3.198719] xhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 9
[    3.201704] usb usb9: We don't know the algorithms for LPM for this host, disabling LPM.
[    3.201716] usb usb9: New USB device found, idVendor=1d6b, idProduct=0003
[    3.201717] usb usb9: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.201717] usb usb9: Product: xHCI Host Controller
[    3.201718] usb usb9: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.201719] usb usb9: SerialNumber: 0000:00:10.1
[    3.201812] hub 9-0:1.0: USB hub found
[    3.201818] hub 9-0:1.0: 2 ports detected
[    3.201921] usbcore: registered new interface driver usbserial
[    3.201926] usbcore: registered new interface driver usbserial_generic
[    3.201931] usbserial: USB Serial support registered for generic
[    3.201960] i8042: PNP: No PS/2 controller found. Probing ports directly.
[    3.202412] serio: i8042 KBD port at 0x60,0x64 irq 1
[    3.202415] serio: i8042 AUX port at 0x60,0x64 irq 12
[    3.202527] mousedev: PS/2 mouse device common for all mice
[    3.202729] rtc_cmos 00:06: RTC can wake from S4
[    3.202878] rtc_cmos 00:06: rtc core: registered rtc_cmos as rtc0
[    3.202912] rtc_cmos 00:06: alarms up to one month, y3k, 114 bytes nvram, hpet irqs
[    3.202965] device-mapper: uevent: version 1.0.3
[    3.203039] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[    3.203335] hidraw: raw HID events driver (C) Jiri Kosina
[    3.203378] usbcore: registered new interface driver usbhid
[    3.203379] usbhid: USB HID core driver
[    3.203457] drop_monitor: Initializing network drop monitor service
[    3.203528] ip_tables: (C) 2000-2006 Netfilter Core Team
[    3.219329] Initializing XFRM netlink socket
[    3.219468] NET: Registered protocol family 10
[    3.219685] mip6: Mobile IPv6
[    3.219687] NET: Registered protocol family 17
[    3.250520] microcode: CPU0: patch_level=0x06003104
[    3.250530] microcode: CPU1: patch_level=0x06003104
[    3.250542] microcode: CPU2: patch_level=0x06003104
[    3.250544] microcode: CPU3: patch_level=0x06003104
[    3.250591] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[    3.256973] ... APIC ID:      10000000 (10)
[    3.256974] ... APIC VERSION: 80050010
[    3.256977] 0000000000000000000000000000000000000000000000000000000000000000
[    3.256979] 0000000000000000000000000000000000000000000000000000000000000000
[    3.256981] 0000000000000000000000000000000000000000000000000000000000008000
[    3.256982] 
[    3.256990] ... APIC ID:      11000000 (11)
[    3.256991] ... APIC VERSION: 80050010
[    3.256993] 0000000000000000000000000000000000000000000000000000000000000000
[    3.256994] 0000000000000000000000000000000000000000000000000000000000000000
[    3.256996] 0000000000000000000000000000000000000000000000000000000020000000
[    3.256997] 
[    3.257005] ... APIC ID:      12000000 (12)
[    3.257005] ... APIC VERSION: 80050010
[    3.257009] 0000000000000000000000000000000000000000000000000000000000000000
[    3.257011] 0000000000000000000000000000000000000000000000000000000000000000
[    3.257013] 0000000000000000000000000000000000000000000000000000000000000000
[    3.257014] 
[    3.257015] ... APIC ID:      13000000 (13)
[    3.257015] ... APIC VERSION: 80050010
[    3.257017] 0000000000000000000000000000000000000000000000000000000000000000
[    3.257019] 0000000000000000000000000000000000000000000000000000000000000000
[    3.257020] 0000000000000000000000000000000000000000000000000000000000000000
[    3.257021] 
[    3.257023] testing the IO APIC.......................
[    3.257221] .................................... done.
[    3.257229] AVX version of gcm_enc/dec engaged.
[    3.257229] AES CTR mode by8 optimization enabled
[    3.279454] registered taskstats version 1
[    3.279469] Loading compiled-in X.509 certificates
[    3.280697] alg: No test for pkcs1pad(rsa,sha256) (pkcs1pad(rsa-generic,sha256))
[    3.281420] Loaded X.509 cert 'Build time autogenerated kernel key: 0e2826147936663a5ac6eeec89769acff5dfb9ef'
[    3.281451] zswap: loaded using pool lzo/zbud
[    3.281803]   Magic number: 0:295:823
[    3.285305] rtc_cmos 00:06: setting system clock to 2016-05-25 06:50:31 UTC (1464159031)
[    3.339609] usb 3-3: new low-speed USB device number 2 using ohci-pci
[    3.407608] tsc: Refined TSC clocksource calibration: 3693.281 MHz
[    3.407610] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x6a791632c9c, max_idle_ns: 881591001453 ns
[    3.502871] usb 3-3: New USB device found, idVendor=413c, idProduct=2105
[    3.502872] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    3.502873] usb 3-3: Product: Dell USB Keyboard
[    3.502874] usb 3-3: Manufacturer: Dell
[    3.527126] input: Dell Dell USB Keyboard as /devices/pci0000:00/0000:00:12.0/usb3/3-3/3-3:1.0/0003:413C:2105.0001/input/input5
[    3.577769] hid-generic 0003:413C:2105.0001: input,hidraw0: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-0000:00:12.0-3/input0
[    3.698603] usb 3-4: new low-speed USB device number 3 using ohci-pci
[    3.846865] usb 3-4: New USB device found, idVendor=17ef, idProduct=6050
[    3.846867] usb 3-4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[    3.846868] usb 3-4: Product: Lenovo Precision USB Mouse
[    3.855100] input: Lenovo Precision USB Mouse as /devices/pci0000:00/0000:00:12.0/usb3/3-4/3-4:1.0/0003:17EF:6050.0002/input/input6
[    3.855258] hid-generic 0003:17EF:6050.0002: input,hidraw1: USB HID v1.11 Mouse [Lenovo Precision USB Mouse] on usb-0000:00:12.0-4/input0
[    3.955223] Freeing unused kernel memory: 1536K (ffffffff81d45000 - ffffffff81ec5000)
[    3.965099] Write protecting the kernel read-only data: 12288k
[    3.971413] Freeing unused kernel memory: 272K (ffff8800017bc000 - ffff880001800000)
[    3.981315] Freeing unused kernel memory: 908K (ffff880001b1d000 - ffff880001c00000)
[    3.992133] random: systemd urandom read with 18 bits of entropy available
[    4.009864] systemd[1]: systemd 222 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GN)
[    4.028319] systemd[1]: Detected architecture x86-64.
[    4.033522] systemd[1]: Running in initial RAM disk.

Welcome to Fedora 23 (Twenty Three) dracut-043-60.git20150811.fc23 (Initramfs)!

[    4.047895] systemd[1]: Set hostname to <dhcp-129-10.nay.redhat.com>.
[  OK  ] Reached target Timers.
[    4.104795] systemd[1]: Reached target Timers.
[    4.109401] systemd[1]: Starting Timers.
[  OK  ] Reached target Local File Systems.
[    4.119826] systemd[1]: Reached target Local File Systems.
[    4.125433] systemd[1]: Starting Local File Systems.
[  OK  ] Reached target Swap.
[    4.135825] systemd[1]: Reached target Swap.
[    4.140217] systemd[1]: Starting Swap.
[  OK  ] Created slice -.slice.
[    4.149809] systemd[1]: Created slice -.slice.
[    4.154406] systemd[1]: Starting -.slice.
[  OK  ] Listening on udev Kernel Socket.
[    4.164824] systemd[1]: Listening on udev Kernel Socket.
[    4.170257] systemd[1]: Starting udev Kernel Socket.
[  OK  ] Created slice System Slice.
[    4.180829] systemd[1]: Created slice System Slice.
[    4.185853] systemd[1]: Starting System Slice.
[  OK  ] Listening on udev Control Socket.
[    4.196822] systemd[1]: Listening on udev Control Socket.
[    4.202341] systemd[1]: Starting udev Control Socket.
[  OK  ] Listening on Journal Socket.
[    4.212818] systemd[1]: Listening on Journal Socket.
[    4.217910] systemd[1]: Starting Journal Socket.
[    4.231110] systemd[1]: Starting Setup Virtual Console...
         Starting Setup Virtual Console...
[    4.242517] systemd[1]: Starting Create list of required static device nodes for the current kernel...
         Starting Create list of required st... nodes for the current kernel...
[    4.261934] systemd[1]: Started Load Kernel Modules.
[    4.267080] systemd[1]: Started dracut ask for additional cmdline parameters.
[    4.274968] systemd[1]: Starting dracut cmdline hook...
         Starting dracut cmdline hook...
[    4.285395] systemd[1]: Starting Apply Kernel Variables...
         Starting Apply Kernel Variables...
[  OK  ] Listening on Journal Socket (/dev/log).
[    4.301595] systemd[1]: Listening on Journal Socket (/dev/log).
[    4.307676] systemd[1]: Starting Journal Socket (/dev/log).
[  OK  ] Reached target Slices.
[    4.317549] systemd[1]: Reached target Slices.
[    4.322125] systemd[1]: Starting Slices.
[  OK  ] Listening on Journal Audit Socket.
[    4.332632] systemd[1]: Listening on Journal Audit Socket.
[    4.338269] systemd[1]: Starting Journal Audit Socket.
[  OK  ] Reached target Sockets.
[    4.347634] systemd[1]: Reached target Sockets.
[    4.352301] systemd[1]: Starting Sockets.
[    4.367070] systemd[1]: Starting Journal Service...
         Starting Journal Service...
[  OK  ] Started Setup Virtual Console.
[    4.383694] systemd[1]: Started Setup Virtual Console.
[    4.389088] audit: type=1130 audit(1464159032.605:2): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-vconsole-setup comm'
[    4.409645] clocksource: Switched to clocksource tsc
[  OK  ] Started Create list of required sta...ce nodes for the current kernel.
[    4.423771] systemd[1]: Started Create list of required static device nodes for the current kernel.
[    4.433025] audit: type=1130 audit(1464159032.650:3): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=kmod-static-nodes comm="sys'
[  OK  ] Started dracut cmdline hook.
[    4.458755] systemd[1]: Started dracut cmdline hook.
[    4.463899] audit: type=1130 audit(1464159032.681:4): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=dracut-cmdline comm="system'
[  OK  ] Started Apply Kernel Variables.
[    4.490764] systemd[1]: Started Apply Kernel Variables.
[    4.496175] audit: type=1130 audit(1464159032.713:5): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-sysctl comm="system'
[  OK  ] Started Journal Service.
[    4.521843] systemd[1]: Started Journal Service.
[    4.526699] audit: type=1130 audit(1464159032.743:6): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-journald comm="syst'
         Starting dracut pre-udev hook...
         Starting Create Static Device Nodes in /dev...
[  OK  ] Started Create Static Device Nodes in /dev.
[    4.582704] audit: type=1130 audit(1464159032.799:7): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-tmpfiles-setup-dev '
[  OK  ] Started dracut pre-udev hook.
[    4.608733] audit: type=1130 audit(1464159032.825:8): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=dracut-pre-udev comm="syste'
         Starting udev Kernel Device Manager...
[  OK  ] Started udev Kernel Device Manager.
[    4.650863] audit: type=1130 audit(1464159032.867:9): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-udevd comm="systemd'
         Starting udev Coldplug all Devices...
         Mounting Configuration File System...
[  OK  ] Mounted Configuration File System.
[  OK  ] Started udev Coldplug all Devices.
[    4.717666] audit: type=1130 audit(1464159032.934:10): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-udev-trigger comm='
[    4.739295] [drm] Initialized drm 1.1.0 20060810
         Startin[    4.745383] scsi host4: pata_atiixp
g dracut initque[    4.750042] scsi host5: pata_atiixp
ue hook...
[    4.754510] ata5: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xf100 irq 14
[    4.762132] ata6: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xf108 irq 15
         Starting Show Pl[    4.770198] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
ymouth Boot Scre[    4.777861] r8169 0000:01:00.0 eth0: RTL8168evl/8111evl at 0xffffc90000f12000, fc:aa:14:c0:c2:7e, XID 0c900880 IRQ 37
en...
[    4.789260] r8169 0000:01:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[    4.790595] r8169 0000:01:00.0 enp1s0: renamed from eth0
[    4.810491] [drm] radeon kernel modesetting enabled.
[    4.817612] AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
[    4.826762] Found CRAT image with size=1360
[    4.831042] Parsing CRAT table with 1 nodes
[    4.835331] Found CU entry in CRAT table with proximity_domain=0 caps=0
[    4.842051] CU CPU: cores=4 id_base=16
[    4.845902] Found CU entry in CRAT table with proximity_domain=0 caps=0
[    4.852613] CU GPU: simds=32 id_base=-2147483648
[    4.857335] Found memory entry in CRAT table with proximity_domain=0
[    4.863769] Found memory entry in CRAT table with proximity_domain=0
[    4.870199] Found cache entry in CRAT table with processor_id=16
[    4.870199] Found cache entry in CRAT table with processor_id=16
[    4.870200] Found cache entry in CRAT table with processor_id=16
[    4.870201] Found cache entry in CRAT table with processor_id=17
[    4.870201] Found cache entry in CRAT table with processor_id=18
[    4.870201] Found cache entry in CRAT table with processor_id=18
[    4.870201] Found cache entry in CRAT table with processor_id=18
[    4.870202] Found cache entry in CRAT table with processor_id=19
[    4.870202] Found TLB entry in CRAT table (not processing)
[    4.870202] Found TLB entry in CRAT table (not processing)
[    4.870203] Found TLB entry in CRAT table (not processing)
[    4.870203] Found TLB entry in CRAT table (not processing)
[    4.870203] Found TLB entry in CRAT table (not processing)
[    4.870203] Found TLB entry in CRAT table (not processing)
[    4.870204] Found TLB entry in CRAT table (not processing)
[    4.870204] Found TLB entry in CRAT table (not processing)
[    4.870205] Found TLB entry in CRAT table (not processing)
[    4.870205] Found TLB entry in CRAT table (not processing)
[    4.870205] Creating topology SYSFS entries
[    4.870226] Finished initializing topology ret=0
[    4.870289] kfd kfd: Initialized module
[    4.870994] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130F 0x1002:0x0123 0x00).
[    4.871007] [drm] register mmio base: 0xFEB00000
[    4.871007] [drm] register mmio size: 262144
[    4.871010] [drm] doorbell mmio base: 0xD0000000
[    4.871010] [drm] doorbell mmio size: 8388608
[    4.871058] ATOM BIOS: 113
[    4.871123] radeon 0000:00:01.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M used)
[    4.871125] radeon 0000:00:01.0: GTT: 2048M 0x0000000040000000 - 0x00000000BFFFFFFF
[    4.871126] [drm] Detected VRAM RAM=1024M, BAR=256M
[    4.871126] [drm] RAM width 128bits DDR
[    4.871167] [TTM] Zone  kernel: Available graphics memory: 3443228 kiB
[    4.871168] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[    4.871168] [TTM] Initializing pool allocator
[    4.871172] [TTM] Initializing DMA pool allocator
[    4.871190] [drm] radeon: 1024M of VRAM memory ready
[    4.871190] [drm] radeon: 2048M of GTT memory ready.
[    4.871198] [drm] Loading kaveri Microcode
[    4.871302] [drm] Internal thermal controller without fan control
[    4.872502] [drm] radeon: dpm initialized
[    4.874170] [drm] Found VCE firmware/feedback version 40.2.2 / 15!
[    4.874177] [drm] GART: num cpu pages 524288, num gpu pages 524288
[    4.891823] [drm] PCIE GART of 2048M enabled (table at 0x0000000000324000).
[    4.892058] radeon 0000:00:01.0: WB enabled
[    4.892068] radeon 0000:00:01.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffff880231772c00
[    4.892070] radeon 0000:00:01.0: fence driver on ring 1 use gpu addr 0x0000000040000c04 and cpu addr 0xffff880231772c04
[    4.892071] radeon 0000:00:01.0: fence driver on ring 2 use gpu addr 0x0000000040000c08 and cpu addr 0xffff880231772c08
[    4.892073] radeon 0000:00:01.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffff880231772c0c
[    4.892074] radeon 0000:00:01.0: fence driver on ring 4 use gpu addr 0x0000000040000c10 and cpu addr 0xffff880231772c10
[    4.892459] radeon 0000:00:01.0: fence driver on ring 5 use gpu addr 0x0000000000076c98 and cpu addr 0xffffc90001436c98
[    4.892709] radeon 0000:00:01.0: fence driver on ring 6 use gpu addr 0x0000000040000c18 and cpu addr 0xffff880231772c18
[    4.892711] radeon 0000:00:01.0: fence driver on ring 7 use gpu addr 0x0000000040000c1c and cpu addr 0xffff880231772c1c
[    4.892712] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    4.892713] [drm] Driver supports precise vblank timestamp query.
[    4.892749] radeon 0000:00:01.0: radeon: using MSI.
[    4.892787] [drm] radeon: irq initialized.
[    4.894670] [drm] ring test on 0 succeeded in 2 usecs
[    4.894748] [drm] ring test on 1 succeeded in 1 usecs
[    4.894762] [drm] ring test on 2 succeeded in 1 usecs
[    4.894893] [drm] ring test on 3 succeeded in 2 usecs
[    4.894898] [drm] ring test on 4 succeeded in 3 usecs
[    4.940931] [drm] ring test on 5 succeeded in 0 usecs
[    4.950943] [drm] UVD initialized successfully.
[    4.985908] ata6.00: ATAPI: PIONEER DVD-ROM DVD-232, 1.00, max UDMA/100
[    4.985911] ata6.00: limited to UDMA/33 due to 40-wire cable
[    5.057889] ata6.00: configured for UDMA/33
[    5.060981] [drm] ring test on 6 succeeded in 9 usecs
[    5.060992] [drm] ring test on 7 succeeded in 2 usecs
[    5.060993] [drm] VCE initialized successfully.
[    5.071725] scsi 5:0:0:0: CD-ROM            PIONEER  DVD-ROM DVD-232  1.00 PQ: 0 ANSI: 5
[    5.090415] [drm] ib test on ring 0 succeeded in 0 usecs
[    5.090444] [drm] ib test on ring 1 succeeded in 0 usecs
[    5.090472] [drm] ib test on ring 2 succeeded in 0 usecs
[    5.090504] [drm] ib test on ring 3 succeeded in 0 usecs
[    5.090533] [drm] ib test on ring 4 succeeded in 0 usecs
[    5.100806] sr 5:0:0:0: [sr0] scsi3-mmc drive: 40x/40x cd/rw xa/form2 cdda tray
[    5.100807] cdrom: Uniform CD-ROM driver Revision: 3.20
[    5.101080] sr 5:0:0:0: Attached scsi generic sg1 type 5
[    5.601790] [drm] ib test on ring 5 succeeded
[    5.627181] [drm] ib test on ring 6 succeeded
[    5.632701] [drm] ib test on ring 7 succeeded
[    5.637865] [drm] Radeon Display Connectors
[    5.642193] [drm] Connector 0:
[    5.645352] [drm]   DVI-D-1
[    5.648247] [drm]   HPD3
[    5.650882] [drm]   DDC: 0x6550 0x6550 0x6554 0x6554 0x6558 0x6558 0x655c 0x655c
[    5.658385] [drm]   Encoders:
[    5.661456] [drm]     DFP2: INTERNAL_UNIPHY2
[    5.665822] [drm] Connector 1:
[    5.668976] [drm]   HDMI-A-1
[    5.671959] [drm]   HPD1
[    5.674565] [drm]   DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c
[    5.682071] [drm]   Encoders:
[    5.685142] [drm]     DFP1: INTERNAL_UNIPHY
[    5.689422] [drm] Connector 2:
[    5.692548] [drm]   VGA-1
[    5.695271] [drm]   HPD2
[    5.697906] [drm]   DDC: 0x6540 0x6540 0x6544 0x6544 0x6548 0x6548 0x654c 0x654c
[    5.705410] [drm]   Encoders:
[    5.708480] [drm]     CRT1: INTERNAL_UNIPHY3
[    5.712845] [drm]     CRT1: NUTMEG
[    5.814989] [drm] fb mappable at 0xC0728000
[    5.819305] [drm] vram apper at 0xC0000000
[    5.823477] [drm] size 5242880
[    5.826601] [drm] fb depth is 24
[    5.829903] [drm]    pitch is 5120
[    5.833531] fbcon: radeondrmfb (fb0) is primary device
[    5.898310] Console: switching to colour frame buffer device 160x64
[    5.912900] radeon 0000:00:01.0: fb0: radeondrmfb frame buffer device
G[  OK  ] Reached target System Initialization.
G[  OK  ] Started Show Plymouth Boot Screen.
[  OK  ] Reached target Paths.
[\_SB_.ALIB]ched targe[    5.935299] ACPI Error: t Basic System.
 Namespace lookup failure, AE_NOT_FOUND (20160108/psargs-359)
[    5.947172] ACPI Error: Method parse/execution failed [\_SB.PCI0.VGA.ATC0] (Node ffff8802370c8028), AE_NOT_FOUND (20160108/psparse-542)
[    5.959470] ACPI Error: Method parse/execution failed [\_SB.PCI0.VGA.ATCS] (Node ffff8802370c8000), AE_NOT_FOUND (20160108/psparse-542)
[    5.974563] kfd kfd: Allocated 3944480 bytes on gart for device(1002:130f)
[    5.981578] kfd kfd: added device (1002:130f)
[    5.985958] [drm] Initialized radeon 2.43.0 20080528 for 0000:00:01.0 on minor 0
[    6.440823] random: nonblocking pool is initialized
[  OK  ] Found device /dev/mapper/fedora_dhcp--129--10-root.
[  OK  ] Started dracut initqueue hook.
         Starting File System Check on /dev/mapper/fedora_dhcp--129--10-root...
[  OK  ] Reached target Remote File Systems (Pre).
[  OK  ] Reached target Remote File Systems.
[  OK  ] Started File System Check on /dev/mapper/fedora_dhcp--129--10-root.
         Mounting /sysroot...
[    6.696476] SGI XFS with ACLs, security attributes, no debug enabled
[    6.706168] XFS (dm-0): Mounting V5 Filesystem
[    6.829498] XFS (dm-0): Ending clean mount
[  OK  ] Mounted /sysroot.
[  OK  ] Reached target Initrd Root File System.
         Starting Reload Configuration from the Real Root...
[  OK  ] Started Reload Configuration from the Real Root.
[  OK  ] Reached target Initrd File Systems.
[  OK  ] Reached target Initrd Default Target.
         Starting dracut pre-pivot and cleanup hook...
[  OK  ] Started dracut pre-pivot and cleanup hook.
         Starting Cleaning Up and Shutting Down Daemons...
[  OK  ] Stopped target Timers.
         Starting Plymouth switch root service...
[  OK  ] Stopped Cleaning Up and Shutting Down Daemons.
[  OK  ] Stopped dracut pre-pivot and cleanup hook.
         Stopping dracut pre-pivot and cleanup hook...
[  OK  ] Stopped target Initrd Default Target.
[  OK  ] Stopped target Basic System.
[  OK  ] Stopped target Sockets.
[  OK  ] Stopped target System Initialization.
[  OK  ] Stopped Apply Kernel Variables.
         Stopping Apply Kernel Variables...
[  OK  ] Stopped target Local File Systems.
         Stopping udev Kernel Device Manager...
[  OK  ] Stopped target Swap.
[  OK  ] Stopped target Slices.
[  OK  ] Stopped target Paths.
[  OK  ] Stopped target Remote File Systems.
[  OK  ] Stopped target Remote File Systems (Pre).
[  OK  ] Stopped dracut initqueue hook.
         Stopping dracut initqueue hook...
[  OK  ] Stopped udev Coldplug all Devices.
  [    7.167152] systemd-journald[296]: Received SIGTERM from PID 1 (n/a).
       Stopping udev Coldplug all Devices...
[  OK  ] Stopped udev Kernel Device Manager.
[  OK  ] Stopped dracut pre-udev hook.
         Stopping dracut pre-udev hook...
[  OK  ] Stopped dracut cmdline hook.
         Stopping dracut cmdline hook...
[  OK  ] Stopped Create Static Device Nodes in /dev.
         Stopping Create Static Device Nodes in /dev...
[  OK  ] Stopped Create list of required sta...ce nodes for the current kernel.
         Stopping Create list of required st... nodes for the current kernel...
[  OK  ] Closed udev Kernel Socket.
[  OK  ] Closed udev Control Socket.
         Starting Cleanup udevd DB...
[  OK  ] Started Cleanup udevd DB.
[  OK  ] Reached target Switch Root.
[  OK  ] Started Plymouth switch root service.
         Starting Switch Root...
[    7.552763] audit_printk_skb: 87 callbacks suppressed
[    7.558855] audit: type=1404 audit(1464159035.769:40): enforcing=1 old_enforcing=0 auid=4294967295 ses=4294967295
[    7.747046] SELinux:  Permission validate_trans in class security not defined in policy.
[    7.756286] SELinux: the above unknown classes and permissions will be allowed
[    7.773701] audit: type=1403 audit(1464159035.990:41): policy loaded auid=4294967295 ses=4294967295
[    7.789241] systemd[1]: Successfully loaded SELinux policy in 244.026ms.
[    7.878494] systemd[1]: Relabelled /dev and /run in 17.723ms.

Welcome to Fedora 23 (Twenty Three)!

[    8.632312] audit: type=1130 audit(1464159036.848:42): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=syste'
[    8.656140] audit: type=1131 audit(1464159036.873:43): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=syste'
[    8.680483] audit: type=1130 audit(1464159036.897:44): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=initr'
[  OK  ] Stopped Switch[    8.704713] audit: type=1131 audit(1464159036.922:45): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:in'
 Root.
[    8.729692] audit: type=1130 audit(1464159036.946:46): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=syste'
[    8.729716] audit: type=1131 audit(1464159036.946:47): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=syste'
[  OK  ] Stopped Journal Service.
         Starting Journal Service...
[  OK  ] Reached target Encrypted Volumes.
[  OK  ] Set up automount Arbitrary Executab...ats File System Automount Point.
[    8.856223] audit: type=1305 audit(1464159037.072:48): audit_enabled=1 old=1 auid=4294967295 ses=4294967295 subj=system_u:system_r:syslogd_t:s0 re1
         Mounting Temporary Directory...
         Mounting Debug File System...
         Starting Create list of[    8.928793] audit: type=1130 audit(1464159037.145:49): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:sy'
 required st... nodes for the current kernel...
[  OK  ] Stopped File System Check on Root Device.
         Stopping File System Check on Root Device...
[  OK  ] Created slice system-systemd\x2dfsck.slice.
[  OK  ] Listening on Device-mapper event daemon FIFOs.
         Mounting Huge Pages File System...
[  OK  ] Listening on udev Control Socket.
         Mounting POSIX Message Queue File System...
[  OK  ] Reached target Remote File Systems.
[  OK  ] Listening on udev Kernel Socket.
[  OK  ] Listening on /dev/initctl Compatibility Named Pipe.
[  OK  ] Created slice system-getty.slice.
[  OK  ] Listening on LVM2 poll daemon socket.
         Starting Remount Root and Kernel File Systems...
[  OK  ] Listening on LVM2 metadata daemon socket.
         Starting Monitoring of LVM2 mirrors... dmeventd or progress polling...
[  OK  ] Created slice User and Session Slice.
[  OK  ] Reached target Slices.
[  OK  ] Created slice system-serial\x2dgetty.slice.
         Starting Apply Kernel Variables...
[  OK  ] Stopped target Switch Root.
[  OK  ] Stopped target Initrd File Systems.
[  OK  ] Stopped target Initrd Root File System.
[  OK  ] Reached target Paths.
[  OK  ] Mounted Debug File System.
[  OK  ] Mounted POSIX Message Queue File System.
[  OK  ] Mounted Huge Pages File System.
[  OK  ] Mounted Temporary Directory.
[  OK  ] Started Journal Service.
[  OK  ] Started Create list of required sta...ce nodes for the current kernel.
[  OK  ] Started Remount Root and Kernel File Systems.
         Starting udev Coldplug all Devices...
         Starting Configure read-only root support...
         Starting Create Static Device Nodes in /dev...
         Starting Flush Journal to Persistent Storage...
[  OK  ] Started Apply Kernel Variables.
[  OK  ] Started LVM2 metadata daemon.
         Starting LVM2 metadata daemon...
[    9.383570] systemd-journald[607]: Received request to flush runtime journal from PID 1
[  OK  ] Started udev Coldplug all Devices.
[    9.551404] systemd-journald[607]: File /var/log/journal/8f17e1b512944c6188871fa5fbde084f/system.journal corrupted or uncleanly shut down, renamin.
[  OK  ] Started Create Static Device Nodes in /dev.
[  OK  ] Reached target Local File Systems (Pre).
         Starting udev Kernel Device Manager...
[  OK  ] Started Configure read-only root support.
         Starting Load/Save Random Seed...
[  OK  ] Started Load/Save Random Seed.
[  OK  ] Started udev Kernel Device Manager.
[   10.678408] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[   10.725122] ACPI: Video Device [VGA] (multi-head: yes  rom: no  post: no)
[   10.733295] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[   10.742758] acpi device:02: registered as cooling_device4
[   10.749491] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/LNXVIDEO:00/input/input7
[  OK  ] Found device /dev/ttyS0.
[   11.204572] EDAC MC: Ver: 3.0.0
[   11.211495] MCE: In-kernel MCE decoding enabled.
[   11.264477] acpi-cpufreq: overriding BIOS provided _PSD data
[  OK  ] Started Monitoring of LVM2 mirrors,...ng dmeventd or progress polling.
[  OK  ] Started Flush Journal to Persistent Storage.
[   11.464076] AMD64 EDAC driver v3.4.0
[   11.469381] EDAC amd64: DRAM ECC disabled.
[   11.475208] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
[   11.475208]  Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
[   11.475208]  (Note that use of the override may cause unknown side effects.)
[   11.504551] snd_hda_intel 0000:00:01.1: Force to non-snoop mode
[   11.514341] input: PC Speaker as /devices/platform/pcspkr/input/input8
[   11.543518] piix4_smbus 0000:00:14.0: SMBus Host Controller at 0xb00, revision 0
[   11.552308] piix4_smbus 0000:00:14.0: Using register 0x2e for SMBus port selection
[   11.562135] piix4_smbus 0000:00:14.0: Auxiliary SMBus Host Controller at 0xb20
[   11.582705] input: HDA ATI HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/sound/card0/input9
[   11.594033] snd_hda_codec_realtek hdaudioC1D0: autoconfig for ALC892: line_outs=3 (0x14/0x15/0x16/0x0/0x0) type:line
[   11.605832] snd_hda_codec_realtek hdaudioC1D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[   11.614993] snd_hda_codec_realtek hdaudioC1D0:    hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
[   11.623888] snd_hda_codec_realtek hdaudioC1D0:    mono: mono_out=0x0
[   11.631519] snd_hda_codec_realtek hdaudioC1D0:    dig-out=0x11/0x1e
[   11.639021] snd_hda_codec_realtek hdaudioC1D0:    inputs:
[   11.645659] snd_hda_codec_realtek hdaudioC1D0:      Front Mic=0x19
[   11.653427] snd_hda_codec_realtek hdaudioC1D0:      Rear Mic=0x18
[   11.660723] snd_hda_codec_realtek hdaudioC1D0:      Line=0x1a
[   11.660836] sp5100_tco: SP5100/SB800 TCO WatchDog Timer Driver v0.05
[   11.660944] sp5100_tco: PCI Vendor ID: 0x1022, Device ID: 0x780b, Revision ID: 0x16
[   11.660949] sp5100_tco: I/O address 0x0cd6 already in use
GG[   11.710028] input: HD-Audio Generic Front Mic as /devices/pci0000:00/0000:00:14.2/sound/card1/input10
[   11.720970] input: HD-Audio Generic Rear Mic as /devices/pci0000:00/0000:00:14.2/sound/card1/input11
[   11.731567] input: HD-Audio Generic Line as /devices/pci0000:00/0000:00:14.2/sound/card1/input12
[   11.741668] input: HD-Audio Generic Line Out Front as /devices/pci0000:00/0000:00:14.2/sound/card1/input13
[   11.752582] input: HD-Audio Generic Line Out Surround as /devices/pci0000:00/0000:00:14.2/sound/card1/input14
[   11.763800] input: HD-Audio Generic Line Out CLFE as /devices/pci0000:00/0000:00:14.2/sound/card1/input15
[   11.774717] input: HD-Audio Generic Front Headphone as /devices/pci0000:00/0000:00:14.2/sound/card1/input16
[  OK  ] Reached target Sound Card.
[  OK  ] Created slice system-systemd\x2dbacklight.slice.
         Starting Load/Save Screen Backlight...ness of backlight:acpi_video0...
[  OK  ] Started Load/Save Screen Backlight ...htness of backlight:acpi_video0.
[  OK  ] Found device ST31000524NS 1.
         Starting File System Check on /dev/...b-6c5b-4610-8ddb-a557b1d40e0a...
[  OK  ] Created slice system-lvm2\x2dpvscan.slice.
         Starting LVM2 PV scan on device 8:2...
[   12.627817] kvm: Nested Virtualization enabled
[   12.633947] kvm: Nested Paging enabled
[  OK  ] Found device /dev/mapper/fedor[   12.699549] audit_printk_skb: 42 callbacks suppressed
a_dhcp--129--10-home.
[  [   12.699550] audit: type=1130 audit(1464159040.916:64): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=lv'
OK  ] Started LVM2 PV scan on device 8:2.
         Mounting /home...
[   12.754253] XFS (dm-2): Mounting V5 Filesystem
[   13.048263] audit: type=1130 audit(1464159041.264:65): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=syste'
[  OK  ] Started File System Check on /dev/d...0db-6c5b-4610-8ddb-a557b1d40e0a.
[   13.082306] XFS (dm-2): Starting recovery (logdev: internal)
m  OK  ] Found device /dev/mapper/fedora_dhcp--129--10-swap.
         Activating swap /dev/mapper/fedora_dhcp--129--10-swap...
         Mounting /boot...
[   13.195926] Adding 7208956k swap on /dev/mapper/fedora_dhcp--129--10-swap.  Priority:-1 extents:1 across:7208956k FS
[  OK  ] Activated swap /dev/mapper/fedora_dhcp--129--10-swap.
[  OK  ] Reached target Swap.
[   13.233122] XFS (dm-2): Ending recovery (logdev: internal)
[  OK  ] Mounted /home.
[   13.261738] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[  OK  ] Mounted /boot.
[  OK  ] Reached target Local File Systems.
         Starting Restore /run/initramfs on shutdown...
         Starting Import network configuration from initramfs...
         Starting Tell Plymouth To Write Out Runtime Data...
[   13.442660] audit: type=1130 audit(1464159041.659:66): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=dracu'
[  OK  ] Started Restore /run/initramfs[   13.545008] audit: type=1130 audit(1464159041.761:67): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=syst'
 on shutdown.
[  OK  ] Started Tell Plymouth To Write[   13.573416] audit: type=1131 audit(1464159041.790:68): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=syst'
 Out Runtime Data.
[   13.599702] audit: type=1130 audit(1464159041.816:69): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=fedor'
[  OK  ] Started Import network configuration from initramfs.
         Starting Create Volatile Files and Directories...
[   13.744621] audit: type=1130 audit(1464159041.961:70): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=syste'
[  OK  ] Started Create Volatile Files and Directories.
         Starting Security Auditing Service...
[   13.816045] audit: type=1305 audit(1464159042.032:71): auid=4294967295 ses=4294967295 subj=system_u:system_r:auditctl_t:s0 op="add_rule" key=(null1
[   13.839064] audit: type=1130 audit(1464159042.055:72): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=audit'
[  OK  ] Started Security Auditing Service.
         Starting Update UTMP about System Boot/Shutdown...
[   13.904750] audit: type=1305 audit(1464159042.121:73): audit_enabled=1 old=1 auid=4294967295 ses=4294967295 subj=system_u:system_r:auditd_t:s0 res1
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Reached target System Initialization.
[  OK  ] Listening on D-Bus System Message Bus Socket.
[  OK  ] Reached target Sockets.
[  OK  ] Reached target Basic System.
         Starting Login Service...
         Starting firewalld - dynamic firewall daemon...
[  OK  ] Started D-Bus System Message Bus.
         Starting D-Bus System Message Bus...
         Starting Permit User Sessions...
[  OK  ] Reached target Timers.
[  OK  ] Started Login Service.
[  OK  ] Started Permit User Sessions.
[  OK  ] Started Command Scheduler.
         Starting Command Scheduler...
         Starting Wait for Plymouth Boot Screen to Quit...
         Starting Terminate Plymouth Boot Screen...
[   15.880582] nf_conntrack version 0.5.0 (65536 buckets, 262144 max)
[   15.936800] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   16.106198] Ebtables v2.0 registered
[   16.152448] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[   17.241573] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready
[   17.567458] r8169 0000:01:00.0 enp1s0: link down
[   17.567461] r8169 0000:01:00.0 enp1s0: link down
[   17.576934] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready

Fedora 23 (Twenty Three)
Kernel 4.6.0-rc7+ on an x86_64 (ttyS0)

dhcp-129-10 login: [   20.477010] r8169 0000:01:00.0 enp1s0: link up
[   20.481593] IPv6: ADDRCONF(NETDEV_CHANGE): enp1s0: link becomes ready
root
Password: 
Last login: Wed May 25 14:47:43 on ttyS0
k[root@dhcp-129-10 ~]# kdumpctl restart
kexec: unloaded kdump kernel
Stopping kdump: [OK]
kexec: loaded kdump kernel
Starting kdump: [OK]
[root@dhcp-129-10 ~]# echo c >/proc/sysrq-trigger 
[   56.916226] sysrq: SysRq : Trigger a crash
[   56.920465] BUG: unable to handle kernel NULL pointer dereference at           (null)
[   56.928408] IP: [<ffffffff814aec36>] sysrq_handle_crash+0x16/0x20
[   56.934569] PGD 0 
[   56.936624] Oops: 0002 [#1] SMP 
[   56.939917] Modules linked in: ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_broute bridge stp llc ebtable_nat ebtable_filter ebtai
[   57.019471] CPU: 3 PID: 1288 Comm: bash Not tainted 4.6.0-rc7+ #34
[   57.025683] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./F2A88X-D3H, BIOS F5 05/28/2014
[   57.035770] task: ffff88007e703b00 ti: ffff88022ded4000 task.ti: ffff88022ded4000
[   57.043304] RIP: 0010:[<ffffffff814aec36>]  [<ffffffff814aec36>] sysrq_handle_crash+0x16/0x20
[   57.051925] RSP: 0018:ffff88022ded7dd0  EFLAGS: 00010282
[   57.057277] RAX: 000000000000000f RBX: 0000000000000063 RCX: 0000000000000000
[   57.064464] RDX: 0000000000000000 RSI: ffff88023ed8e018 RDI: 0000000000000063
[   57.071673] RBP: ffff88022ded7dd0 R08: 00000000000000c2 R09: 0000000000000002
[   57.078875] R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000007
[   57.086068] R13: 0000000000000000 R14: ffffffff81cc59c0 R15: 0000000000000000
[   57.093271] FS:  00007f286620e700(0000) GS:ffff88023ed80000(0000) knlGS:0000000000000000
[   57.101440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.107234] CR2: 0000000000000000 CR3: 0000000233e83000 CR4: 00000000000406e0
[   57.114445] Stack:
[   57.116500]  ffff88022ded7e00 ffffffff814af40a 0000000000000002 fffffffffffffffb
[   57.124036]  ffff88022ded7f18 0000000000000002 ffff88022ded7e18 ffffffff814af88f
[   57.131543]  ffff880232f01cc0 ffff88022ded7e38 ffffffff812a5012 ffff88022ac15000
[   57.139057] Call Trace:
[   57.141529]  [<ffffffff814af40a>] __handle_sysrq+0xea/0x140
[   57.147136]  [<ffffffff814af88f>] write_sysrq_trigger+0x2f/0x40
[   57.153125]  [<ffffffff812a5012>] proc_reg_write+0x42/0x70
[   57.158671]  [<ffffffff81238f77>] __vfs_write+0x37/0x100
[   57.164071]  [<ffffffff81343b3d>] ? security_file_permission+0x3d/0xc0
[   57.170664]  [<ffffffff810ece62>] ? percpu_down_read+0x12/0x50
[   57.176567]  [<ffffffff81239f29>] vfs_write+0xa9/0x1a0
[   57.181762]  [<ffffffff8123b385>] SyS_write+0x55/0xc0
[   57.186843]  [<ffffffff817b30b2>] entry_SYSCALL_64_fastpath+0x1a/0xa4
[   57.193314] Code: 48 c7 c7 fa 40 a6 81 e8 39 2b c9 ff e9 e0 fe ff ff 0f 1f 40 00 0f 1f 44 00 00 55 c7 05 18 85 a7 00 01 00 00 00 48 89 e5 0f ae f8 
[   57.213815] RIP  [<ffffffff814aec36>] sysrq_handle_crash+0x16/0x20
[   57.220055]  RSP <ffff88022ded7dd0>
[   57.223567] CR2: 0000000000000000
[    0.000000] Linux version 4.6.0-rc7+ (bhe@dhcp-129-10.nay.redhat.com) (gcc version 5.1.1 20150618 (Red Hat 5.1.1-4) (GCC) ) #34 SMP Tue May 24 17:6
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-4.6.0-rc7+ root=/dev/mapper/fedora_dhcp--129--10-root ro rd.lvm.lv=fedora_dhcp-129-10/root rd.lvm.lvK
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[    0.000000] x86/fpu: Using 'eager' FPU context switches.
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000000fff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000001000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000025000000-0x0000000034f5cfff] usable
[    0.000000] BIOS-e820: [mem 0x0000000034fffc00-0x0000000034ffffff] usable
[    0.000000] BIOS-e820: [mem 0x000000007cc9a000-0x000000007ccc9fff] reserved
[    0.000000] BIOS-e820: [mem 0x000000007cfa0000-0x000000007d06dfff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000007d06e000-0x000000007e1c7fff] reserved
[    0.000000] BIOS-e820: [mem 0x000000007e1c9000-0x000000007e3cefff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000007e851000-0x000000007efe1fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec01fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fec10000-0x00000000fec10fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed00000-0x00000000fed00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed40000-0x00000000fed44fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed80000-0x00000000fed8ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] SMBIOS 2.7 present.
[    0.000000] e820: last_pfn = 0x35000 max_arch_pfn = 0x400000000
[    0.000000] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WC  UC- WT  
[    0.000000] Scan for SMP in [mem 0x00000000-0x000003ff]
[    0.000000] Scan for SMP in [mem 0x0009fc00-0x0009ffff]
[    0.000000] Scan for SMP in [mem 0x000f0000-0x000fffff]
[    0.000000] found SMP MP-table at [mem 0x000fd6f0-0x000fd6ff] mapped at [ffff8800000fd6f0]
[    0.000000]   mpc: fd430-fd66c
[    0.000000] Using GB pages for direct mapping
[    0.000000] RAMDISK: [mem 0x31aa2000-0x32ffffff]
[    0.000000] ACPI: Early table checksum verification disabled
[    0.000000] ACPI: RSDP 0x00000000000F0490 000024 (v02 ALASKA)
[    0.000000] ACPI: XSDT 0x000000007D024080 000084 (v01 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI: FACP 0x000000007D02A598 00010C (v05 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI BIOS Warning (bug): Optional FADT field Pm2ControlBlock has zero address or length: 0x0000000000000000/0x1 (20160108/tbfadt-654)
[    0.000000] ACPI: DSDT 0x000000007D0241A0 0063F2 (v02 ALASKA A M I    00000088 INTL 20051117)
[    0.000000] ACPI: FACS 0x000000007D063080 000040
[    0.000000] ACPI: APIC 0x000000007D02A6A8 00007E (v03 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI: FPDT 0x000000007D02A728 000044 (v01 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI: MCFG 0x000000007D02A770 00003C (v01 ALASKA A M I    01072009 MSFT 00010013)
[    0.000000] ACPI: HPET 0x000000007D02A7B0 000038 (v01 ALASKA A M I    01072009 AMI  00000005)
[    0.000000] ACPI: WDRT 0x000000007D02A7E8 000047 (v01 ALASKA A M I    01072009 AMI  00000005)
[    0.000000] ACPI: IVRS 0x000000007D02A830 000078 (v02 AMD    BANTRY   00000001 AMD  00000000)
[    0.000000] ACPI: SSDT 0x000000007D02A8A8 000B9C (v01 AMD    BANTRY   00000001 AMD  00000001)
[    0.000000] ACPI: SSDT 0x000000007D02B448 00033B (v02 AMD    BANTRY   00000002 MSFT 04000000)
[    0.000000] ACPI: CRAT 0x000000007D02B788 000550 (v01 AMD    BANTRY   00000001 AMD  00000001)
[    0.000000] ACPI: SSDT 0x000000007D02BCD8 001457 (v01 AMD    CPMDFIGP 00000001 INTL 20051117)
[    0.000000] ACPI: SSDT 0x000000007D02D130 00122C (v01 AMD    CPMCMN   00000001 INTL 20051117)
[    0.000000] mapped APIC to ffffffffff5fc000 (        fee00000)
[    0.000000] NUMA turned off
[    0.000000] Faking a node at [mem 0x0000000000000000-0x0000000034ffffff]
[    0.000000] NODE_DATA(0) allocated [mem 0x34f4b000-0x34f5cfff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.000000]   DMA32    [mem 0x0000000001000000-0x0000000034ffffff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000001000-0x000000000009efff]
[    0.000000]   node   0: [mem 0x0000000025000000-0x0000000034f5cfff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x0000000034f5cfff]
[    0.000000] ACPI: PM-Timer IO Port: 0x808
[    0.000000] mapped APIC to ffffffffff5fc000 (        fee00000)
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 0/0x10 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 1/0x11 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 2/0x12 ignored.
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[    0.000000] IOAPIC[0]: apic_id 0, version 33, address 0xfec00000, GSI 0-23
[    0.000000] IOAPIC[1]: apic_id 1, version 33, address 0xfec01000, GSI 24-55
[    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 0, APIC INT 02
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
[    0.000000] Int: type 0, pol 3, trig 3, bus 00, IRQ 09, APIC ID 0, APIC INT 09
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 0, APIC INT 01
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 0, APIC INT 03
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 04
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 05, APIC ID 0, APIC INT 05
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 0, APIC INT 06
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 0, APIC INT 07
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 0, APIC INT 08
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0a, APIC ID 0, APIC INT 0a
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0b, APIC ID 0, APIC INT 0b
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0c
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 0, APIC INT 0d
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 0, APIC INT 0e
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 0, APIC INT 0f
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x10228210 base: 0xfed00000
[    0.000000] smpboot: 4 Processors exceeds NR_CPUS limit of 1
[    0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[    0.000000] mapped IOAPIC to ffffffffff5fb000 (fec00000)
[    0.000000] mapped IOAPIC to ffffffffff5fa000 (fec01000)
[    0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000dffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000e0000-0x000fffff]
[    0.000000] PM: Registered nosave memory: [mem 0x00100000-0x24ffffff]
[    0.000000] PM: Registered nosave memory: [mem 0x34f5d000-0x34ffffff]
[    0.000000] e820: [mem 0x7efe2000-0xfebfffff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on bare hardware
[    0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[    0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:1 nr_node_ids:1
[    0.000000] percpu: Embedded 34 pages/cpu @ffff880034c00000 s98776 r8192 d32296 u2097152
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total pages: 64485
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.6.0-rc7+ root=/dev/mapper/fedora_dhcp--129--10-root ro rd.lvm.lv=fedora_dhcp-129-10/root rdK
[    0.000000] Misrouted IRQ fixup and polling support enabled
[    0.000000] This may significantly impact system performance
[    0.000000] PID hash table entries: 1024 (order: 1, 8192 bytes)
[    0.000000] Memory: 214876K/262124K available (7903K kernel code, 1294K rwdata, 3188K rodata, 1536K init, 1468K bss, 47248K reserved, 0K cma-reser)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 64.
[    0.000000]  RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=1.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1
[    0.000000] NR_IRQS:4352 nr_irqs:256 16
[    0.000000]  Offload RCU callbacks from all CPUs
[    0.000000]  Offload RCU callbacks from CPUs: 0.
[    0.000000] Spurious LAPIC timer interrupt on cpu 0
[    0.000000] Console: colour VGA+ 80x25
[    0.000000] console [tty0] enabled
[    0.000000] console [ttyS0] enabled
[    0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484873504 ns
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 3693.260 MHz processor
[    0.000044] Calibrating delay loop (skipped), value calculated using timer frequency.. 7386.52 BogoMIPS (lpj=3693260)
[    0.010884] pid_max: default: 32768 minimum: 301
[    0.015613] ACPI: Core revision 20160108
[    0.028251] ACPI: 5 ACPI AML tables successfully acquired and loaded
[    0.034805] 
[    0.036408] Security Framework initialized
[    0.040630] Yama: becoming mindful.
[    0.044220] SELinux:  Initializing.
[    0.047907] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.055093] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.062131] Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
[    0.068780] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes)
[    0.076280] Disabling memory control group subsystem
[    0.081437] CPU: Physical Processor ID: 0
[    0.085574] CPU: Processor Core ID: 1
[    0.089337] Last level iTLB entries: 4KB 512, 2MB 1024, 4MB 512
[    0.095350] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 512, 1GB 0
[    0.111999] Freeing SMP alternatives memory: 32K (ffffffff81ec5000 - ffffffff81ecd000)
[    0.121535] ftrace: allocating 29742 entries in 117 pages
[    0.146933] smpboot: Max logical packages: 2
[    0.151332] smpboot: APIC(13) Converting physical 1 to logical package 0
[    0.158831] AMD-Vi: device: 00:00.2 cap: 0040 seg: 0 flags: b8 info 0000
[    0.165656] AMD-Vi:        mmio-addr: 00000000feb80000
[    0.170907] Translation is already enabled - trying to copy translation structures
[    0.178576] AMD-Vi:   DEV_SELECT_RANGE_START  devid: 00:01.0 flags: 00
[    0.185197] AMD-Vi:   DEV_RANGE_END           devid: ff:1f.6
[    0.191236] AMD-Vi:   DEV_ALIAS_RANGE                 devid: 02:00.0 flags: 00 devid_to: 00:14.4
[    0.198959] AMD-Vi:   DEV_RANGE_END           devid: 02:1f.7
[    0.204025] AMD-Vi:   DEV_SPECIAL(HPET[0])           devid: 00:14.0
[    0.209604] AMD-Vi:   DEV_SPECIAL(IOAPIC[0])         devid: 00:14.0
[    0.215359] AMD-Vi:   DEV_SPECIAL(IOAPIC[1])         devid: 00:00.0
[    0.223493] Copied translation tables from previous kernel.
[    0.316710] masked ExtINT on CPU#0
[    0.320450] ESR value before enabling vector: 0x00000008  after: 0x00000000
[    0.327531] ENABLING IO-APIC IRQs
[    0.331282] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.347385] Using local APIC timer interrupts.
[    0.347385] calibrating APIC timer ...
[    0.457723] ... lapic delta = 623858
[    0.461399] ... PM-Timer delta = 357950
[    0.465332] ... PM-Timer result ok
[    0.468835] ..... delta 623858
[    0.471987] ..... mult: 26794497
[    0.475306] ..... calibration result: 99817
[    0.479582] ..... CPU clock speed is 3693.0242 MHz.
[    0.484555] ..... host bus clock speed is 99.0817 MHz.
[    0.489803] smpboot: CPU0: AMD A10-7850K Radeon R7, 12 Compute Cores 4C+8G (family: 0x15, model: 0x30, stepping: 0x1)
[    0.500673] Performance Events: Fam15h core perfctr, Broken BIOS detected, complain to your hardware vendor.
[    0.510735] [Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR c0010200 is 530076)
[    0.519265] AMD PMU driver.
[    0.522163] ... version:                0
[    0.526269] ... bit width:              48
[    0.530465] ... generic registers:      6
[    0.534572] ... value mask:             0000ffffffffffff
[    0.539983] ... max period:             00007fffffffffff
[    0.545390] ... fixed-purpose events:   0
[    0.549497] ... event mask:             000000000000003f
[    0.555976] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
[    0.564091] x86: Booted up 1 node, 1 CPUs
[    0.568203] smpboot: Total of 1 processors activated (7386.52 BogoMIPS)
[    0.575458] devtmpfs: initialized
[    0.579051] x86/mm: Memory block size: 128MB
[    0.587217] PM: Registering ACPI NVS region [mem 0x7cfa0000-0x7d06dfff] (843776 bytes)
[    0.595313] PM: Registering ACPI NVS region [mem 0x7e1c9000-0x7e3cefff] (2121728 bytes)
[    0.603560] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[    0.613548] atomic64_test: passed for x86-64 platform with CX8 and with SSE
[    0.620637] pinctrl core: initialized pinctrl subsystem
[    0.626013] RTC time:  6:51:28, date: 05/25/16
[    0.630726] NET: Registered protocol family 16
[    0.635728] cpuidle: using governor menu
[    0.640086] ACPI: bus type PCI registered
[    0.644227] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.650898] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[    0.660305] PCI: not using MMCONFIG
[    0.663891] PCI: Using configuration type 1 for base access
[    0.669557] PCI: Using configuration type 1 for extended access
[    0.677887] HugeTLB registered 1 GB page size, pre-allocated 0 pages
[    0.684396] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.691130] ACPI: Added _OSI(Module Device)
[    0.695437] ACPI: Added _OSI(Processor Device)
[    0.699977] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.704779] ACPI: Added _OSI(Processor Aggregator Device)
[    0.710972] ACPI: Executed 1 blocks of module-level executable AML code
[    0.723697] ACPI: Interpreter enabled
[    0.727521] ACPI: (supports S0 S3 S4 S5)
[    0.731543] ACPI: Using IOAPIC for interrupt routing
[    0.736807] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[    0.746262] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources
[    0.755105] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.765110] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[    0.773261] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[    0.781455] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[    0.798248] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.804593] acpi PNP0A03:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
[    0.813229] acpi PNP0A03:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]
[    0.821919] PCI host bridge to bus 0000:00
[    0.826116] pci_bus 0000:00: root bus resource [io  0x0000-0x03af window]
[    0.832996] pci_bus 0000:00: root bus resource [io  0x03e0-0x0cf7 window]
[    0.839877] pci_bus 0000:00: root bus resource [io  0x03b0-0x03df window]
[    0.846758] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    0.853642] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[    0.861222] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000dffff window]
[    0.868805] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xffffffff window]
[    0.876387] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.883213] pci 0000:00:03.1: System wakeup disabled by ACPI
[    0.889507] pci 0000:00:10.0: System wakeup disabled by ACPI
[    0.895591] pci 0000:00:10.1: System wakeup disabled by ACPI
[    0.901848] pci 0000:00:12.0: System wakeup disabled by ACPI
[    0.907888] pci 0000:00:12.2: System wakeup disabled by ACPI
[    0.913897] pci 0000:00:13.0: System wakeup disabled by ACPI
[    0.919936] pci 0000:00:13.2: System wakeup disabled by ACPI
[    0.926032] pci 0000:00:14.1: legacy IDE quirk: reg 0x10: [io  0x01f0-0x01f7]
[    0.933261] pci 0000:00:14.1: legacy IDE quirk: reg 0x14: [io  0x03f6]
[    0.939883] pci 0000:00:14.1: legacy IDE quirk: reg 0x18: [io  0x0170-0x0177]
[    0.947110] pci 0000:00:14.1: legacy IDE quirk: reg 0x1c: [io  0x0376]
[    0.954027] pci 0000:00:14.2: System wakeup disabled by ACPI
[    0.960134] pci 0000:00:14.4: System wakeup disabled by ACPI
[    0.966129] pci 0000:00:14.5: System wakeup disabled by ACPI
[    0.974841] pci 0000:00:03.1: PCI bridge to [bus 01]
[    0.980066] pci 0000:00:14.4: PCI bridge to [bus 02] (subtractive decode)
[    0.987992] ACPI: PCI Interrupt Link [LNKA] (IRQs 4 5 7 10 11 14 15) *0
[    0.995202] ACPI: PCI Interrupt Link [LNKB] (IRQs 4 5 7 10 11 14 15) *0
[    1.002412] ACPI: PCI Interrupt Link [LNKC] (IRQs 4 5 7 10 11 14 15) *0
[    1.009618] ACPI: PCI Interrupt Link [LNKD] (IRQs 4 5 7 10 11 14 15) *0
[    1.016806] ACPI: PCI Interrupt Link [LNKE] (IRQs 4 5 7 10 11 14 15) *0
[    1.023987] ACPI: PCI Interrupt Link [LNKF] (IRQs 4 5 7 10 11 14 15) *0
[    1.031153] ACPI: PCI Interrupt Link [LNKG] (IRQs 4 5 7 10 11 14 15) *0
[    1.038330] ACPI: PCI Interrupt Link [LNKH] (IRQs 4 5 7 10 11 14 15) *0
[    1.045929] vgaarb: setting as boot device: PCI:0000:00:01.0
[    1.051699] vgaarb: device added: PCI:0000:00:01.0,decodes=io+mem,owns=io+mem,locks=none
[    1.059895] vgaarb: loaded
[    1.062706] vgaarb: bridge control possible 0000:00:01.0
[    1.068278] SCSI subsystem initialized
[    1.072293] ACPI: bus type USB registered
[    1.076464] usbcore: registered new interface driver usbfs
[    1.082025] usbcore: registered new interface driver hub
[    1.087446] usbcore: registered new device driver usb
[    1.092734] PCI: Using ACPI for IRQ routing
[    1.104913] NetLabel: Initializing
[    1.108443] NetLabel:  domain hash size = 128
[    1.112895] NetLabel:  protocols = UNLABELED CIPSOv4
[    1.117976] NetLabel:  unlabeled traffic allowed by default
[    1.123955] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    1.129073] hpet0: 3 comparators, 32-bit 14.318180 MHz counter
[    1.137053] clocksource: Switched to clocksource hpet
[    1.154164] VFS: Disk quotas dquot_6.6.0
[    1.158244] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    1.165525] pnp: PnP ACPI init
[    1.168945] system 00:00: [mem 0xe0000000-0xefffffff] has been reserved
[    1.175791] system 00:01: [mem 0x80000000-0xbfffffff] has been reserved
[    1.182657] system 00:02: [mem 0xfeb80000-0xfebfffff] could not be reserved
[    1.190034] system 00:03: [io  0x0220-0x0227] has been reserved
[    1.196052] system 00:03: [io  0x0228-0x0237] has been reserved
[    1.202049] system 00:03: [io  0x0a20-0x0a2f] has been reserved
[    1.208870] system 00:07: [io  0x04d0-0x04d1] has been reserved
[    1.215400] system 00:08: [io  0x04d0-0x04d1] has been reserved
[    1.221479] system 00:08: [io  0x040b] has been reserved
[    1.226893] system 00:08: [io  0x04d6] has been reserved
[    1.232303] system 00:08: [io  0x0c00-0x0c01] has been reserved
[    1.238325] system 00:08: [io  0x0c14] has been reserved
[    1.243732] system 00:08: [io  0x0c50-0x0c51] has been reserved
[    1.249750] system 00:08: [io  0x0c52] has been reserved
[    1.255166] system 00:08: [io  0x0c6c] has been reserved
[    1.260583] system 00:08: [io  0x0c6f] has been reserved
[    1.265998] system 00:08: [io  0x0cd0-0x0cd1] has been reserved
[    1.272013] system 00:08: [io  0x0cd2-0x0cd3] has been reserved
[    1.278028] system 00:08: [io  0x0cd4-0x0cd5] has been reserved
[    1.284019] system 00:08: [io  0x0cd6-0x0cd7] has been reserved
[    1.290039] system 00:08: [io  0x0cd8-0x0cdf] has been reserved
[    1.296024] system 00:08: [io  0x0800-0x089f] could not be reserved
[    1.302390] system 00:08: [io  0x0b20-0x0b3f] has been reserved
[    1.308414] system 00:08: [io  0x0900-0x090f] has been reserved
[    1.314436] system 00:08: [io  0x0910-0x091f] has been reserved
[    1.320452] system 00:08: [io  0xfe00-0xfefe] has been reserved
[    1.327701] system 00:08: [mem 0xfec00000-0xfec00fff] could not be reserved
[    1.334762] system 00:08: [mem 0xfee00000-0xfee00fff] has been reserved
[    1.341478] system 00:08: [mem 0xfed80000-0xfed8ffff] has been reserved
[    1.348195] system 00:08: [mem 0xfed61000-0xfed70fff] has been reserved
[    1.354911] system 00:08: [mem 0xfec10000-0xfec10fff] has been reserved
[    1.361627] system 00:08: [mem 0xfed00000-0xfed00fff] could not be reserved
[    1.368684] system 00:08: [mem 0xff000000-0xffffffff] has been reserved
[    1.375663] pnp: PnP ACPI: found 9 devices
[    1.387020] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    1.396025] pci 0000:00:03.1: PCI bridge to [bus 01]
[    1.401097] pci 0000:00:03.1:   bridge window [io  0xe000-0xefff]
[    1.407295] pci 0000:00:03.1:   bridge window [mem 0xfea00000-0xfeafffff]
[    1.414184] pci 0000:00:03.1:   bridge window [mem 0xd0800000-0xd08fffff 64bit pref]
[    1.422037] pci 0000:00:14.4: PCI bridge to [bus 02]
[    1.427218] NET: Registered protocol family 2
[    1.432029] TCP established hash table entries: 2048 (order: 2, 16384 bytes)
[    1.439199] TCP bind hash table entries: 2048 (order: 3, 32768 bytes)
[    1.445744] TCP: Hash tables configured (established 2048 bind 2048)
[    1.452213] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    1.458153] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    1.464573] NET: Registered protocol family 1
[    1.469051] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    1.632577] Unpacking initramfs...
[    2.373337] Freeing initrd memory: 21880K (ffff880031aa2000 - ffff880033000000)
[    2.380891] AMD-Vi: IOMMU performance counters supported
[    2.386513] pci 0000:00:00.2: can't derive routing for PCI INT A
[    2.392689] pci 0000:00:00.2: PCI INT A: not connected
[    2.398687] iommu: Adding device 0000:00:00.0 to group 0
[    2.404867] iommu: Adding device 0000:00:01.0 to group 1
[    2.410368] iommu: Using direct mapping for device 0000:00:01.0
[    2.416403] iommu: Adding device 0000:00:01.1 to group 1
[    2.422546] iommu: Adding device 0000:00:02.0 to group 2
[    2.428686] iommu: Adding device 0000:00:03.0 to group 3
[    2.434176] iommu: Adding device 0000:00:03.1 to group 3
[    2.440339] iommu: Adding device 0000:00:04.0 to group 4
[    2.446508] iommu: Adding device 0000:00:10.0 to group 5
[    2.451936] iommu: Adding device 0000:00:10.1 to group 5
[    2.458037] iommu: Adding device 0000:00:11.0 to group 6
[    2.464273] iommu: Adding device 0000:00:12.0 to group 7
[    2.469698] iommu: Adding device 0000:00:12.2 to group 7
[    2.475797] iommu: Adding device 0000:00:13.0 to group 8
[    2.481286] iommu: Adding device 0000:00:13.2 to group 8
[    2.487461] iommu: Adding device 0000:00:14.0 to group 9
[    2.492890] iommu: Adding device 0000:00:14.1 to group 9
[    2.498316] iommu: Adding device 0000:00:14.2 to group 9
[    2.503743] iommu: Adding device 0000:00:14.3 to group 9
[    2.509837] iommu: Adding device 0000:00:14.4 to group 10
[    2.516155] iommu: Adding device 0000:00:14.5 to group 11
[    2.522420] iommu: Adding device 0000:00:18.0 to group 12
[    2.527931] iommu: Adding device 0000:00:18.1 to group 12
[    2.533444] iommu: Adding device 0000:00:18.2 to group 12
[    2.538955] iommu: Adding device 0000:00:18.3 to group 12
[    2.544470] iommu: Adding device 0000:00:18.4 to group 12
[    2.549982] iommu: Adding device 0000:00:18.5 to group 12
[    2.555501] iommu: Adding device 0000:01:00.0 to group 3
[    2.560911] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
[    2.566325] AMD-Vi:  Extended features:  PPR GT IA PC
[    2.571666] AMD-Vi: Interrupt remapping enabled
[    2.576489] AMD-Vi: Lazy IO/TLB flushing enabled
[    2.581491] perf: AMD NB counters detected
[    2.585756] LVT offset 0 assigned for vector 0x400
[    2.590651] perf: AMD IBS detected (0x000001ff)
[    2.595290] perf: amd_iommu: Detected. (2 banks, 4 counters/bank)
[    2.602324] futex hash table entries: 256 (order: 2, 16384 bytes)
[    2.608583] audit: initializing netlink subsys (disabled)
[    2.614143] audit: type=2000 audit(1464159087.662:1): initialized
[    2.620971] Initialise system trusted keyring
[    2.625588] workingset: timestamp_bits=35 max_order=16 bucket_order=0
[    2.635221] zbud: loaded
[    2.638725] Key type big_key registered
[    2.738863] NET: Registered protocol family 38
[    2.743452] Key type asymmetric registered
[    2.747667] Asymmetric key parser 'x509' registered
[    2.752732] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    2.760326] io scheduler noop registered
[    2.764362] io scheduler deadline registered
[    2.768784] io scheduler cfq registered (default)
[    2.774140] pcieport 0000:00:03.1: Signaling PME through PCIe PME interrupt
[    2.781204] pci 0000:01:00.0: Signaling PME through PCIe PME interrupt
[    2.787847] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    2.793528] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[    2.800384] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0
[    2.808930] ACPI: Power Button [PWRB]
[    2.812754] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
[    2.820318] ACPI: Power Button [PWRF]
[    2.824102] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0011 address=0x0000000000003580 flags=0x0020]
[    2.834893] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0011 address=0x0000000000003580 flags=0x0000]
[    2.845681] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0011 address=0x0000000000164000 flags=0x0020]
[    2.856735] GHES: HEST is not enabled!
[    2.860718] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    2.887770] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    2.895916] Non-volatile memory driver v1.3
[    2.900316] Linux agpgart interface v0.103
[    2.905353] ahci 0000:00:11.0: AHCI 0001.0300 32 slots 4 ports 6 Gbps 0xf impl SATA mode
[    2.913583] ahci 0000:00:11.0: flags: 64bit ncq sntf ilck pm led clo pmp pio slum part 
[    2.922598] scsi host0: ahci
[    2.925735] scsi host1: ahci
[    2.928853] scsi host2: ahci
[    2.931973] scsi host3: ahci
[    2.935059] ata1: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71100 irq 19
[    2.942587] ata2: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71180 irq 19
[    2.950117] ata3: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71200 irq 19
[    2.957649] ata4: SATA max UDMA/133 abar m2048@0xfeb71000 port 0xfeb71280 irq 19
[    2.965415] libphy: Fixed MDIO Bus: probed
[    2.969726] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    2.976391] ehci-pci: EHCI PCI platform driver
[    2.981100] ehci-pci 0000:00:12.2: EHCI Host Controller
[    2.986481] ehci-pci 0000:00:12.2: new USB bus registered, assigned bus number 1
[    2.994046] ehci-pci 0000:00:12.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[    3.002881] ehci-pci 0000:00:12.2: debug port 1
[    3.007558] ehci-pci 0000:00:12.2: irq 17, io mem 0xfeb6f000
[    3.019291] ehci-pci 0000:00:12.2: USB 2.0 started, EHCI 1.00
[    3.025246] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    3.032166] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.039524] usb usb1: Product: EHCI Host Controller
[    3.044507] usb usb1: Manufacturer: Linux 4.6.0-rc7+ ehci_hcd
[    3.050354] usb usb1: SerialNumber: 0000:00:12.2
[    3.055277] hub 1-0:1.0: USB hub found
[    3.059213] hub 1-0:1.0: 5 ports detected
[    3.063772] ehci-pci 0000:00:13.2: EHCI Host Controller
[    3.069167] ehci-pci 0000:00:13.2: new USB bus registered, assigned bus number 2
[    3.076733] ehci-pci 0000:00:13.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[    3.085571] ehci-pci 0000:00:13.2: debug port 1
[    3.090242] ehci-pci 0000:00:13.2: irq 17, io mem 0xfeb6d000
[    3.101292] ehci-pci 0000:00:13.2: USB 2.0 started, EHCI 1.00
[    3.107230] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[    3.114144] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.121502] usb usb2: Product: EHCI Host Controller
[    3.126483] usb usb2: Manufacturer: Linux 4.6.0-rc7+ ehci_hcd
[    3.132325] usb usb2: SerialNumber: 0000:00:13.2
[    3.137260] hub 2-0:1.0: USB hub found
[    3.141195] hub 2-0:1.0: 5 ports detected
[    3.145588] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    3.151878] ohci-pci: OHCI PCI platform driver
[    3.156614] ohci-pci 0000:00:12.0: OHCI PCI host controller
[    3.162358] ohci-pci 0000:00:12.0: new USB bus registered, assigned bus number 3
[    3.170008] ohci-pci 0000:00:12.0: irq 18, io mem 0xfeb70000
[    3.230421] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[    3.237347] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.244670] usb usb3: Product: OHCI PCI host controller
[    3.249996] usb usb3: Manufacturer: Linux 4.6.0-rc7+ ohci_hcd
[    3.255845] usb usb3: SerialNumber: 0000:00:12.0
[    3.261259] hub 3-0:1.0: USB hub found
[    3.265137] hub 3-0:1.0: 5 ports detected
[    3.269767] ohci-pci 0000:00:13.0: OHCI PCI host controller
[    3.275550] ohci-pci 0000:00:13.0: new USB bus registered, assigned bus number 4
[    3.283101] ata1: SATA link down (SStatus 0 SControl 300)
[    3.288632] ata3: SATA link down (SStatus 0 SControl 300)
[    3.294171] ata2: SATA link down (SStatus 0 SControl 300)
[    3.299726] ohci-pci 0000:00:13.0: irq 18, io mem 0xfeb6e000
[    3.360406] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
[    3.367327] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.374658] usb usb4: Product: OHCI PCI host controller
[    3.381211] usb usb4: Manufacturer: Linux 4.6.0-rc7+ ohci_hcd
[    3.387058] usb usb4: SerialNumber: 0000:00:13.0
[    3.392192] hub 4-0:1.0: USB hub found
[    3.396098] hub 4-0:1.0: 5 ports detected
[    3.400620] ohci-pci 0000:00:14.5: OHCI PCI host controller
[    3.406391] ohci-pci 0000:00:14.5: new USB bus registered, assigned bus number 5
[    3.413958] ohci-pci 0000:00:14.5: irq 18, io mem 0xfeb6c000
[    3.456308] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    3.464538] ata4.00: ATA-8: ST31000524NS, SN12, max UDMA/133
[    3.470317] ata4.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 31/32)
[    3.481408] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
[    3.488330] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.495661] usb usb5: Product: OHCI PCI host controller
[    3.500992] usb usb5: Manufacturer: Linux 4.6.0-rc7+ ohci_hcd
[    3.506839] usb usb5: SerialNumber: 0000:00:14.5
[    3.511970] hub 5-0:1.0: USB hub found
[    3.515941] hub 5-0:1.0: 2 ports detected
[    3.520078] ata4.00: configured for UDMA/133
[    3.535610] uhci_hcd: USB Universal Host Controller Interface driver
[    3.542244] scsi 3:0:0:0: Direct-Access     ATA      ST31000524NS     SN12 PQ: 0 ANSI: 5
[    3.550706] xhci_hcd 0000:00:10.0: xHCI Host Controller
[    3.556264] sd 3:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
[    3.564135] sd 3:0:0:0: Attached scsi generic sg0 type 0
[    3.569605] sd 3:0:0:0: [sda] Write Protect is off
[    3.574583] xhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 6
[    3.582185] sd 3:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    3.591608] xhci_hcd 0000:00:10.0: hcc params 0x014040c3 hci version 0x100 quirks 0x00000418
[    3.600510] usb usb6: New USB device found, idVendor=1d6b, idProduct=0002
[    3.607405] usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.614742] usb usb6: Product: xHCI Host Controller
[    3.619732] usb usb6: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.625577] usb usb6: SerialNumber: 0000:00:10.0
[    3.630323]  sda: sda1 sda2
[    3.633248] tsc: Refined TSC clocksource calibration: 3693.282 MHz
[    3.639529] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x6a7918f751d, max_idle_ns: 881590915016 ns
[    3.649900] sd 3:0:0:0: [sda] Attached SCSI disk
[    3.655433] hub 6-0:1.0: USB hub found
[    3.659336] hub 6-0:1.0: 2 ports detected
[    3.663630] xhci_hcd 0000:00:10.0: xHCI Host Controller
[    3.668996] xhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 7
[    3.676547] usb usb7: We don't know the algorithms for LPM for this host, disabling LPM.
[    3.684744] usb 3-3: new low-speed USB device number 2 using ohci-pci
[    3.691308] usb usb7: New USB device found, idVendor=1d6b, idProduct=0003
[    3.698193] usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.705513] usb usb7: Product: xHCI Host Controller
[    3.710491] usb usb7: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.716332] usb usb7: SerialNumber: 0000:00:10.0
[    3.721201] hub 7-0:1.0: USB hub found
[    3.725125] hub 7-0:1.0: 2 ports detected
[    3.729565] xhci_hcd 0000:00:10.1: xHCI Host Controller
[    3.734936] xhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 8
[    3.753560] xhci_hcd 0000:00:10.1: hcc params 0x014040c3 hci version 0x100 quirks 0x00000418
[    3.762255] usb usb8: New USB device found, idVendor=1d6b, idProduct=0002
[    3.769143] usb usb8: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.776469] usb usb8: Product: xHCI Host Controller
[    3.781445] usb usb8: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.787288] usb usb8: SerialNumber: 0000:00:10.1
[    3.792181] hub 8-0:1.0: USB hub found
[    3.796084] hub 8-0:1.0: 2 ports detected
[    3.800345] xhci_hcd 0000:00:10.1: xHCI Host Controller
[    3.805711] xhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 9
[    3.813275] usb usb9: We don't know the algorithms for LPM for this host, disabling LPM.
[    3.821487] usb usb9: New USB device found, idVendor=1d6b, idProduct=0003
[    3.828344] usb usb9: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.835673] usb usb9: Product: xHCI Host Controller
[    3.840647] usb usb9: Manufacturer: Linux 4.6.0-rc7+ xhci-hcd
[    3.846489] usb usb9: SerialNumber: 0000:00:10.1
[    3.851387] hub 9-0:1.0: USB hub found
[    3.855282] hub 9-0:1.0: 2 ports detected
[    3.859543] usbcore: registered new interface driver usbserial
[    3.865520] usbcore: registered new interface driver usbserial_generic
[    3.872172] usbserial: USB Serial support registered for generic
[    3.878343] i8042: PNP: No PS/2 controller found. Probing ports directly.
[    3.885762] serio: i8042 KBD port at 0x60,0x64 irq 1
[    3.890839] serio: i8042 AUX port at 0x60,0x64 irq 12
[    3.896202] mousedev: PS/2 mouse device common for all mice
[    3.902197] rtc_cmos 00:06: RTC can wake from S4
[    3.907065] rtc_cmos 00:06: rtc core: registered rtc_cmos as rtc0
[    3.913334] rtc_cmos 00:06: alarms up to one month, y3k, 114 bytes nvram, hpet irqs
[    3.921195] device-mapper: uevent: version 1.0.3
[    3.926051] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[    3.935183] hidraw: raw HID events driver (C) Jiri Kosina
[    3.940798] usbcore: registered new interface driver usbhid
[    3.946521] usbhid: USB HID core driver
[    3.950604] drop_monitor: Initializing network drop monitor service
[    3.957021] usb 3-3: New USB device found, idVendor=413c, idProduct=2105
[    3.963839] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    3.971077] usb 3-3: Product: Dell USB Keyboard
[    3.975712] usb 3-3: Manufacturer: Dell
[    3.979875] ip_tables: (C) 2000-2006 Netfilter Core Team
[    3.985350] Initializing XFRM netlink socket
[    3.989970] NET: Registered protocol family 10
[    3.994891] mip6: Mobile IPv6
[    3.998059] NET: Registered protocol family 17
[    4.002748] mce: Unable to init device /dev/mcelog (rc: -5)
[    4.008797] microcode: CPU0: patch_level=0x06003104
[    4.013861] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[    4.022847] ... APIC ID:      13000000 (13)
[    4.027124] ... APIC VERSION: 80050010
[    4.030973] 0000000000000000000000000000000000000000000000000000000000000000
[    4.038425] 0000000000000000000000000000000000000000000000000000000000000000
[    4.045875] 0000000010000000000000000000000000000000000000000000000200008000
[    4.053322] 
[    4.054912] testing the IO APIC.......................
[    4.060500] .................................... done.
[    4.065927] AVX version of gcm_enc/dec engaged.
[    4.070577] AES CTR mode by8 optimization enabled
[    4.100205] input: Dell Dell USB Keyboard as /devices/pci0000:00/0000:00:12.0/usb3/3-3/3-3:1.0/0003:413C:2105.0001/input/input5
[    4.134391] registered taskstats version 1
[    4.138659] Loading compiled-in X.509 certificates
[    4.145876] alg: No test for pkcs1pad(rsa,sha256) (pkcs1pad(rsa-generic,sha256))
[    4.155167] Loaded X.509 cert 'Build time autogenerated kernel key: 0e2826147936663a5ac6eeec89769acff5dfb9ef'
[    4.165379] hid-generic 0003:413C:2105.0001: input,hidraw0: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-0000:00:12.0-3/input0
[    4.177819] zswap: loaded using pool lzo/zbud
[    4.182918]   Magic number: 0:845:873
[    4.186810] rtc_cmos 00:06: setting system clock to 2016-05-25 06:51:31 UTC (1464159091)
[    4.206144] hpet1: lost 16 rtc interrupts
[    4.212811] Freeing unused kernel memory: 1536K (ffffffff81d45000 - ffffffff81ec5000)
[    4.220813] Write protecting the kernel read-only data: 12288k
[    4.227069] Freeing unused kernel memory: 272K (ffff8800337bc000 - ffff880033800000)
[    4.238942] Freeing unused kernel memory: 908K (ffff880033b1d000 - ffff880033c00000)
[    4.250337] hpet1: lost 2 rtc interrupts
[    4.255762] random: systemd urandom read with 15 bits of entropy available
[    4.264221] systemd[1]: systemd 222 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GN)
[    4.282601] systemd[1]: Detected architecture x86-64.
[    4.287833] systemd[1]: Running in initial RAM disk.

Welcome to Fedora 23 (Twenty Three) dracut-043-60.git20150811.fc23 (Initramfs)!

[    4.302529] systemd[1]: Set hostname to <dhcp-129-10.nay.redhat.com>.
[    4.333151] usb 3-4: new low-speed USB device number 3 using ohci-pci
[    4.391347] hpet1: lost 4 rtc interrupts
[  OK  ] Reached target Local File Systems.
[    4.402467] systemd[1]: Reached target Local File Systems.
[    4.408148] systemd[1]: Starting Local File Systems.
[    4.413401] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    4.421449] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch.
[    4.429685] hpet1: lost 1 rtc interrupts
[  OK  ] Reached target Timers.
[    4.439468] systemd[1]: Reached target Timers.
[    4.444104] systemd[1]: Starting Timers.
[  OK  ] Reached target Paths.
[    4.453462] systemd[1]: Reached target Paths.
[    4.457993] systemd[1]: Starting Paths.
[  OK  ] Reached target Swap.
[    4.467467] systemd[1]: Reached target Swap.
[    4.471915] systemd[1]: Starting Swap.
[  OK  ] Created slice -.slice.
[    4.481491] systemd[1]: Created slice -.slice.
[    4.486133] systemd[1]: Starting -.slice.
[  OK  ] Listening on Journal Socket.
[    4.495461] systemd[1]: Listening on Journal Socket.
[    4.500625] systemd[1]: Starting Journal Socket.
[  OK  ] Created slice System Slice.
[    4.510503] systemd[1]: Created slice System Slice.
[    4.515582] systemd[1]: Starting System Slice.
[    4.520500] systemd[1]: Started Load Kernel Modules.
[    4.526824] usb 3-4: New USB device found, idVendor=17ef, idProduct=6050
[    4.533635] usb 3-4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[    4.540868] usb 3-4: Product: Lenovo Precision USB Mouse
[    4.547183] systemd[1]: Starting Apply Kernel Variables...
         Starting Apply Kernel Variables...
[    4.560538] systemd[1]: Started dracut ask for additional cmdline parameters.
[    4.568326] input: Lenovo Precision USB Mouse as /devices/pci0000:00/0000:00:12.0/usb3/3-4/3-4:1.0/0003:17EF:6050.0002/input/input6
[    4.581367] systemd[1]: Starting dracut cmdline hook...
[    4.586852] hid-generic 0003:17EF:6050.0002: input,hidraw1: USB HID v1.11 Mouse [Lenovo Precision USB Mouse] on usb-0000:00:12.0-4/input0
         Starting dracut cmdline hook...
[  OK  ] Listening on Journal Audit Socket.
[    4.614241] systemd[1]: Listening on Journal Audit Socket.
[    4.623220] systemd[1]: Starting Journal Audit Socket.
[  OK  ] Listening on udev Kernel Socket.
[    4.640226] systemd[1]: Listening on udev Kernel Socket.
[    4.649183] systemd[1]: Starting udev Kernel Socket.
[    4.656169] clocksource: Switched to clocksource tsc
[  OK  ] Listening on udev Control Socket.
[    4.670244] systemd[1]: Listening on udev Control Socket.
[    4.679119] systemd[1]: Starting udev Control Socket.
[  OK  ] Reached target Slices.
[    4.694247] systemd[1]: Reached target Slices.
[    4.701117] systemd[1]: Starting Slices.
[  OK  ] Listening on Journal Socket (/dev/log).
[    4.715257] systemd[1]: Listening on Journal Socket (/dev/log).
[    4.725127] systemd[1]: Starting Journal Socket (/dev/log).
[    4.737737] systemd[1]: Starting Journal Service...
         Starting Journal Service...
[  OK  ] Reached target Sockets.
[    4.761248] systemd[1]: Reached target Sockets.
[    4.770129] systemd[1]: Starting Sockets.
[    4.785875] systemd[1]: Starting Create list of required static device nodes for the current kernel...
         Starting Create list of required st... nodes for the current kernel...
[  OK  ] Started Apply Kernel Variables.
[    4.832230] systemd[1]: Started Apply Kernel Variables.
[    4.843226] audit: type=1130 audit(1464159092.155:2): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-sysctl comm="system'
[  OK  ] Started Create list of required sta...ce nodes for the current kernel.
[    4.913270] systemd[1]: Started Create list of required static device nodes for the current kernel.
[    4.929168] audit: type=1130 audit(1464159092.241:3): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=kmod-static-nodes comm="sys'
[  OK  ] Started dracut cmdline hook.
[    4.961415] systemd[1]: Started dracut cmdline hook.
[    4.966613] audit: type=1130 audit(1464159092.279:4): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=dracut-cmdline comm="system'
[  OK  ] Started Journal Service.
[    4.992411] systemd[1]: Started Journal Service.
[    4.997338] audit: type=1130 audit(1464159092.309:5): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-journald comm="syst'
         Starting dracut pre-udev hook...
         Starting Create Static Device Nodes in /dev...
[  OK  ] Started Create Static Device Nodes in /dev.
[    5.045321] audit: type=1130 audit(1464159092.357:6): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-tmpfiles-setup-dev '
[  OK  ] Started dracut pre-udev hook.
         Starting udev Kernel Device Manager...
[  OK  ] Started udev Kernel Device Manager.
         Starting udev Coldplug all Devices...
         Mounting Configuration File System...
[  OK  ] Mounted Configuration File System.
[  OK  ] Started udev Coldplug all Devices.
         Starting dracut initqueue hook...
[  OK  ] Reached target System Initialization.
[  OK  ] Reached target Basic System.
[    5.339659] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[    5.346228] [drm] Initialized drm 1.1.0 20060810
[    5.359767] r8169 0000:01:00.0 eth0: RTL8168evl/8111evl at 0xffffc900000fe000, fc:aa:14:c0:c2:7e, XID 0c900880 IRQ 31
[    5.370545] r8169 0000:01:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[    5.490181] [drm] radeon kernel modesetting enabled.
[    5.510470] AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
[    5.533611] Found CRAT image with size=1360
[    5.543162] Parsing CRAT table with 1 nodes
[    5.551105] Found CU entry in CRAT table with proximity_domain=0 caps=0
[    5.557881] CU CPU: cores=4 id_base=16
[    5.561736] Found CU entry in CRAT table with proximity_domain=0 caps=0
[    5.568444] CU GPU: simds=32 id_base=-2147483648
[    5.573158] Found memory entry in CRAT table with proximity_domain=0
[    5.608494] Found memory entry in CRAT table with proximity_domain=0
[    5.615244] Found cache entry in CRAT table with processor_id=16
[    5.621559] Found cache entry in CRAT table with processor_id=16
[    5.627925] Found cache entry in CRAT table with processor_id=16
[    5.634291] Found cache entry in CRAT table with processor_id=17
[    5.640365] Found cache entry in CRAT table with processor_id=18
[    5.646471] Found cache entry in CRAT table with processor_id=18
[    5.652570] Found cache entry in CRAT table with processor_id=18
[    5.658685] Found cache entry in CRAT table with processor_id=19
[    5.664794] Found TLB entry in CRAT table (not processing)
[    5.670347] Found TLB entry in CRAT table (not processing)
[    5.675926] Found TLB entry in CRAT table (not processing)
[    5.681507] Found TLB entry in CRAT table (not processing)
[    5.687089] Found TLB entry in CRAT table (not processing)
[    5.692671] Found TLB entry in CRAT table (not processing)
[    5.698251] Found TLB entry in CRAT table (not processing)
[    5.703833] Found TLB entry in CRAT table (not processing)
[    5.709416] Found TLB entry in CRAT table (not processing)
[    5.714996] Found TLB entry in CRAT table (not processing)
[    5.720579] Creating topology SYSFS entries
[    5.728892] Finished initializing topology ret=0
[    5.733790] kfd kfd: Initialized module
[    5.739824] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130F 0x1002:0x0123 0x00).
[    5.750669] [drm] register mmio base: 0xFEB00000
[    5.755455] [drm] register mmio size: 262144
[    5.759933] [drm] doorbell mmio base: 0xD0000000
[    5.764675] [drm] doorbell mmio size: 8388608
[    5.769300] ATOM BIOS: 113
[    5.772233] radeon 0000:00:01.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M used)
[    5.781240] radeon 0000:00:01.0: GTT: 2048M 0x0000000040000000 - 0x00000000BFFFFFFF
[    5.789009] [drm] Detected VRAM RAM=1024M, BAR=256M
[    5.793992] [drm] RAM width 128bits DDR
[    5.798358] [TTM] Zone  kernel: Available graphics memory: 119752 kiB
[    5.804946] [TTM] Initializing pool allocator
[    5.809469] [TTM] Initializing DMA pool allocator
[    5.814475] [drm] radeon: 1024M of VRAM memory ready
[    5.819597] [drm] radeon: 2048M of GTT memory ready.
[    5.824859] [drm] Loading kaveri Microcode
[    5.829574] [drm] Internal thermal controller without fan control
[    5.837857] [drm] radeon: dpm initialized
[    5.845211] [drm] Found VCE firmware/feedback version 40.2.2 / 15!
[    5.851657] [drm] GART: num cpu pages 524288, num gpu pages 524288
[    5.875319] [drm] PCIE GART of 2048M enabled (table at 0x0000000000324000).
[    5.882573] radeon 0000:00:01.0: WB enabled
[    5.887244] radeon 0000:00:01.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffff8800322cac00
[    5.898165] radeon 0000:00:01.0: fence driver on ring 1 use gpu addr 0x0000000040000c04 and cpu addr 0xffff8800322cac04
[    5.909052] radeon 0000:00:01.0: fence driver on ring 2 use gpu addr 0x0000000040000c08 and cpu addr 0xffff8800322cac08
[    5.919933] radeon 0000:00:01.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffff8800322cac0c
[    5.930808] radeon 0000:00:01.0: fence driver on ring 4 use gpu addr 0x0000000040000c10 and cpu addr 0xffff8800322cac10
[    5.942092] radeon 0000:00:01.0: fence driver on ring 5 use gpu addr 0x0000000000076c98 and cpu addr 0xffffc90000436c98
[    5.953992] radeon 0000:00:01.0: fence driver on ring 6 use gpu addr 0x0000000040000c18 and cpu addr 0xffff8800322cac18
[    5.964917] radeon 0000:00:01.0: fence driver on ring 7 use gpu addr 0x0000000040000c1c and cpu addr 0xffff8800322cac1c
[    5.976114] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    5.982890] [drm] Driver supports precise vblank timestamp query.
[    5.989238] radeon 0000:00:01.0: radeon: using MSI.
[    5.994425] [drm] radeon: irq initialized.
[    6.537517] [drm:cik_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x3010C)=0xCAFEDEAD)
[    6.547217] radeon 0000:00:01.0: disabling GPU acceleration
[    6.877171] [drm] Radeon Display Connectors
[    6.881486] [drm] Connector 0:
[    6.884602] [drm]   DVI-D-1
[    6.887459] [drm]   HPD3
[    6.890052] [drm]   DDC: 0x6550 0x6550 0x6554 0x6554 0x6558 0x6558 0x655c 0x655c
[    6.897537] [drm]   Encoders:
[    6.900564] [drm]     DFP2: INTERNAL_UNIPHY2
[    6.904889] [drm] Connector 1:
[    6.907997] [drm]   HDMI-A-1
[    6.910937] [drm]   HPD1
[    6.913528] [drm]   DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c
[    6.921014] [drm]   Encoders:
[    6.924041] [drm]     DFP1: INTERNAL_UNIPHY
[    6.928279] [drm] Connector 2:
[    6.931388] [drm]   VGA-1
[    6.934069] [drm]   HPD2
[    6.936659] [drm]   DDC: 0x6540 0x6540 0x6544 0x6544 0x6548 0x6548 0x654c 0x654c
[    6.944145] [drm]   Encoders:
[    6.947172] [drm]     CRT1: INTERNAL_UNIPHY3
[    6.951499] [drm]     CRT1: NUTMEG
[    7.056990] [drm] fb mappable at 0xC0725000
[    7.061299] [drm] vram apper at 0xC0000000
[    7.065463] [drm] size 5242880
[    7.068576] [drm] fb depth is 24
[    7.071860] [drm]    pitch is 5120
[    7.076478] fbcon: radeondrmfb (fb0) is primary device
[    7.139790] Console: switching to colour frame buffer device 160x64
[    7.156764] radeon 0000:00:01.0: fb0: radeondrmfb frame buffer device
[    7.172347] ACPI Error: [\_SB_.ALIB] Namespace lookup failure, AE_NOT_FOUND (20160108/psargs-359)
[    7.181360] ACPI Error: Method parse/execution failed [\_SB.PCI0.VGA.ATC0] (Node ffff880030cc1028), AE_NOT_FOUND (20160108/psparse-542)
[    7.193765] ACPI Error: Method parse/execution failed [\_SB.PCI0.VGA.ATCS] (Node ffff880030cc1000), AE_NOT_FOUND (20160108/psparse-542)
[    7.210347] ------------[ cut here ]------------
[    7.215068] WARNING: CPU: 0 PID: 298 at drivers/gpu/drm/radeon/radeon_gart.c:293 radeon_gart_bind+0xe3/0xf0 [radeon]
[    7.225647] trying to bind memory to uninitialized GART !
[    7.231082] Modules linked in: pata_atiixp(+) amdkfd amd_iommu_v2 radeon(+) i2c_algo_bit drm_kms_helper ttm r8169 drm mii
[    7.242401] CPU: 0 PID: 298 Comm: systemd-udevd Not tainted 4.6.0-rc7+ #34
[    7.249316] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./F2A88X-D3H, BIOS F5 05/28/2014
[    7.259395]  0000000000000286 00000000df735c6c ffff880032c0f550 ffffffff813c452e
[    7.266935]  ffff880032c0f5a0 0000000000000000 ffff880032c0f590 ffffffff810a325b
[    7.274449]  0000012500000005 ffff880032c0f778 0000000000000007 ffff880032c0f778
[    7.281981] Call Trace:
[    7.284456]  [<ffffffff813c452e>] dump_stack+0x63/0x85
[    7.289623]  [<ffffffff810a325b>] __warn+0xcb/0xf0
[    7.294439]  [<ffffffff810a32df>] warn_slowpath_fmt+0x5f/0x80
[    7.300264]  [<ffffffffa00d58a3>] radeon_gart_bind+0xe3/0xf0 [radeon]
[    7.306784]  [<ffffffffa00d2d48>] radeon_ttm_backend_bind+0x68/0x270 [radeon]
[    7.314007]  [<ffffffffa00d3035>] ? radeon_ttm_tt_populate+0xe5/0x2d0 [radeon]
[    7.321274]  [<ffffffffa0059cba>] ttm_tt_bind+0x4a/0x70 [ttm]
[    7.327080]  [<ffffffffa005bfbd>] ttm_bo_handle_move_mem+0x5cd/0x650 [ttm]
[    7.334030]  [<ffffffffa005c6b7>] ? ttm_bo_mem_space+0x137/0x3b0 [ttm]
[    7.340621]  [<ffffffffa005cdc0>] ttm_bo_validate+0x1f0/0x210 [ttm]
[    7.346954]  [<ffffffffa005d0b9>] ttm_bo_init+0x2d9/0x420 [ttm]
[    7.352975]  [<ffffffffa00d40cb>] radeon_bo_create+0x19b/0x250 [radeon]
[    7.359670]  [<ffffffffa00d3c00>] ? radeon_update_memory_usage.isra.3+0x50/0x50 [radeon]
[    7.367853]  [<ffffffffa01a3479>] alloc_gtt_mem+0x99/0x250 [radeon]
[    7.374164]  [<ffffffffa025b276>] kgd2kfd_device_init+0x86/0x480 [amdkfd]
[    7.381060]  [<ffffffffa01a37a9>] radeon_kfd_device_init+0x89/0xb0 [radeon]
[    7.388106]  [<ffffffffa00b954a>] radeon_driver_load_kms+0x14a/0x220 [radeon]
[    7.395303]  [<ffffffffa000e4e7>] drm_dev_register+0xa7/0xb0 [drm]
[    7.401543]  [<ffffffffa0010a7d>] drm_get_pci_dev+0x8d/0x1e0 [drm]
[    7.407817]  [<ffffffffa00b5417>] radeon_pci_probe+0xd7/0x100 [radeon]
[    7.414382]  [<ffffffff814117e5>] local_pci_probe+0x45/0xa0
[    7.420016]  [<ffffffff81412bcd>] pci_device_probe+0xfd/0x140
[    7.425834]  [<ffffffff814fde7c>] driver_probe_device+0x22c/0x440
[    7.431996]  [<ffffffff814fe161>] __driver_attach+0xd1/0xf0
[    7.439467]  [<ffffffff814fe090>] ? driver_probe_device+0x440/0x440
[    7.447605]  [<ffffffff814fb7cc>] bus_for_each_dev+0x6c/0xc0
[    7.455166]  [<ffffffff814fd55e>] driver_attach+0x1e/0x20
[    7.462474]  [<ffffffff814fcffb>] bus_add_driver+0x1eb/0x280
[    7.470046]  [<ffffffff814fea90>] driver_register+0x60/0xe0
[    7.477525]  [<ffffffff8141112c>] __pci_register_driver+0x4c/0x50
[    7.485566]  [<ffffffffa0010cb0>] drm_pci_init+0xe0/0x110 [drm]
[    7.493401]  [<ffffffffa0226000>] ? 0xffffffffa0226000
[    7.500457]  [<ffffffffa0226098>] radeon_init+0x98/0xad [radeon]
[    7.508347]  [<ffffffff81002123>] do_one_initcall+0xb3/0x200
[    7.515857]  [<ffffffff817af198>] ? preempt_schedule_common+0x18/0x30
[    7.524220]  [<ffffffff817af1cc>] ? _cond_resched+0x1c/0x30
[    7.531712]  [<ffffffff81216819>] ? kmem_cache_alloc_trace+0x189/0x1f0
[    7.540203]  [<ffffffff811f78ee>] ? vfree+0x2e/0x70
[    7.547022]  [<ffffffff811aded2>] ? do_init_module+0x27/0x1d7
[    7.554695]  [<ffffffff811adf0a>] do_init_module+0x5f/0x1d7
[    7.562199]  [<ffffffff8112aa84>] load_module+0x20c4/0x26f0
[    7.569690]  [<ffffffff811273c0>] ? __symbol_put+0x60/0x60
[    7.577118]  [<ffffffff81239e64>] ? vfs_read+0x114/0x130
[    7.584368]  [<ffffffff8112b326>] SYSC_finit_module+0xe6/0x120
[    7.592085]  [<ffffffff8112b37e>] SyS_finit_module+0xe/0x10
[    7.599614]  [<ffffffff81003d92>] do_syscall_64+0x62/0x110
[    7.607049]  [<ffffffff817b3161>] entry_SYSCALL64_slow_path+0x25/0x25
[    7.615509] ---[ end trace f7b5b4469c50f04a ]---
[    7.622110] [drm:radeon_ttm_backend_bind [radeon]] *ERROR* failed to bind 964 pages at 0x00312000
[    7.634405] radeon 0000:00:01.0: failed to allocate BO for amdkfd (-22)
[    7.643013] kfd kfd: Could not allocate 3944480 bytes for device (1002:130f)
[    7.652080] [drm] Initialized radeon 2.43.0 20080528 for 0000:00:01.0 on minor 0
[    7.669135] scsi host4: pata_atiixp
[    7.684110] scsi host5: pata_atiixp
[    7.694181] ata5: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xf100 irq 14
[    7.703088] ata6: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xf108 irq 15
[    7.910432] ata6.00: ATAPI: PIONEER DVD-ROM DVD-232, 1.00, max UDMA/100
[    7.918872] ata6.00: limited to UDMA/33 due to 40-wire cable
[    7.984408] r8169 0000:01:00.0 enp1s0: renamed from eth0
[    7.998448] ata6.00: configured for UDMA/33
[    8.025692] scsi 5:0:0:0: CD-ROM            PIONEER  DVD-ROM DVD-232  1.00 PQ: 0 ANSI: 5
[    8.083604] sr 5:0:0:0: [sr0] scsi3-mmc drive: 40x/40x cd/rw xa/form2 cdda tray
[    8.092668] cdrom: Uniform CD-ROM driver Revision: 3.20
[    8.114216] sr 5:0:0:0: Attached scsi generic sg1 type 5
[    8.466612] random: nonblocking pool is initialized
[    8.656390] hpet_rtc_timer_reinit: 9 callbacks suppressed
[    8.663575] hpet1: lost 204 rtc interrupts
[  OK  ] Found device /dev/mapper/fedora_dhcp--129--10-root.
[    8.686172] hpet1: lost 1 rtc interrupts
[    8.794017] hpet1: lost 5 rtc interrupts
[  OK  ] Started dracut initqueue hook.
[    8.808024] audit: type=1130 audit(1464159096.120:10): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=dracut-initqueue comm="sys'
[    8.835816] hpet1: lost 1 rtc interrupts
         Starting File System Check on /dev/mapper/fedora_dhcp--129--10-root...
[  OK  ] Reached target Remote File Systems (Pre).
[  OK  ] Reached target Remote File Systems.
[    8.888920] hpet1: lost 2 rtc interrupts
[  OK  ] Started File System Check on /dev/mapper/fedora_dhcp--129--10-root.
[    8.905613] audit: type=1130 audit(1464159096.218:11): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-fsck-root comm="sy'
         Mounting /sysroot...
[    8.988028] SGI XFS with ACLs, security attributes, no debug enabled
[    9.004337] XFS (dm-0): Mounting V5 Filesystem
[    9.128906] XFS (dm-0): Starting recovery (logdev: internal)
[    9.607280] XFS (dm-0): Ending recovery (logdev: internal)
[    9.615877] hpet1: lost 41 rtc interrupts
[  OK  ] Mounted /sysroot.
[  OK  ] Reached target Initrd Root File System.
         Starting Reload Configuration from the Real Root...
[    9.738684] hpet1: lost 2 rtc interrupts
[  OK  ] Started Reload Configuration from the Real Root.
[    9.753973] audit: type=1130 audit(1464159097.066:12): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=initrd-parse-etc comm="sys'
[  OK  ] Reached target Initrd File Systems.
[  OK  ] Reached target Initrd Default Target.
         Starting dracut pre-pivot and cleanup hook...
[  OK  ] Started dracut pre-pivot and cleanup hook.
         Starting Kdump Vmcore Save Service...
kdump: dump target is /dev/mapper/fedora_dhcp--129--10-root
kdump: saving to /sysroot//var/crash/127.0.0.1-2016-05-25-14:51:37/
kdump: saving vmcore-dmesg.txt
kdump: saving vmcore-dmesg.txt complete
kdump: saving vmcore
Copying data                       : [100.0 %] |
kdump: saving vmcore complete
[  OK  ] Stopped target Timers.
[  OK  ] Stopped Kdump Vmcore Save Service.
[  OK  ] Stopped dracut pre-pivot and cleanup hook.
         Stopping dracut pre-pivot and cleanup hook...
[  OK  ] Stopped target Remote File Systems.
[  OK  ] Stopped target Remote File Systems (Pre).
[  OK  ] Stopped target Initrd Default Target.
[  OK  ] Stopped target Initrd Root File System.
[  OK  ] Stopped target Initrd File Systems.
         Starting Cleaning Up and Shutting Down Daemons...
[   11.423770] XFS (dm-0): Unmounting Filesystem
[  OK  ] Stopped target Basic System.
[  OK  ] Stopped target System Initialization.
[  OK  ] Stopped target Swap.
[  OK  ] Stopped Create Static Device Nodes in /dev.
         Stopping Create Static Device Nodes in /dev...
[  OK  ] Stopped Apply Kernel Variables.
         Stopping Apply Kernel Variables...
[  OK  ] Stopped target Local File Systems.
         Unmounting /sysroot...
[  OK  ] Stopped target Slices.
[  OK  ] Removed slice -.slice.
[  OK  ] Stopped target Sockets.
[  OK  ] Stopped target Paths.
[  OK  ] Reached target Shutdown.
[FAILED] Failed to start Cleaning Up and Shutting Down Daemons.
See 'systemctl status initrd-cleanup.service' for details.
[  OK  ] Unmounted /sysroot.
[  OK  ] Reached target Unmount All Filesystems.
[  OK  ] Reached target Final Step.
         Starting Re[   11.518541] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
boot...
[   11.533504] systemd-journald[214]: Received SIGTERM from PID 1 (systemd-shutdow).
[   11.544593] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[   11.557583] systemd-shutdown[1]: Unmounting file systems.
[   11.565360] systemd-shutdown[1]: All filesystems unmounted.
[   11.573048] systemd-shutdown[1]: Deactivating swaps.
[   11.580193] systemd-shutdown[1]: All swaps deactivated.
[   11.587560] systemd-shutdown[1]: Detaching loop devices.
[   11.595103] systemd-shutdown[1]: All loop devices detached.
[   11.602809] systemd-shutdown[1]: Detaching DM devices.
[   11.610638] systemd-shutdown[1]: Detaching DM 253:1.
[   11.623498] systemd-shutdown[1]: Detaching DM 253:0.
[   11.634492] systemd-shutdown[1]: All DM devices detached.
[   11.642453] systemd-shutdown[1]: Rebooting.
[   11.650558] sd 3:0:0:0: [sda] Synchronizing SCSI cache
[   11.660588] reboot: Restarting system
[   11.666300] reboot: machine restart

Re: [Patch v4 0/9] *** Fix kdump failure in system with amd iommu***

[Baoquan He]

[-- Attachment #1: Type: text/plain, Size: 75 bytes --]

Sorry, log of 'lspci -vvv' is not attatched correclty. Re-attach it here.


[-- Attachment #2: lspci-vvv.log --]
[-- Type: text/plain, Size: 14378 bytes --]

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Complex
	Subsystem: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Complex
	Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) I/O Memory Management Unit
	Subsystem: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) I/O Memory Management Unit
	Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 24
	Capabilities: <access denied>

00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R7 Graphics] (prog-if 00 [VGA controller])
	Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device 0123
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 39
	Region 0: Memory at c0000000 (64-bit, prefetchable) [size=256M]
	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=8M]
	Region 4: I/O ports at f000 [size=256]
	Region 5: Memory at feb00000 (32-bit, non-prefetchable) [size=256K]
	Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: radeon
	Kernel modules: radeon

00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri HDMI/DP Audio Controller
	Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device 0123
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 41
	Region 0: Memory at feb64000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1424
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1424
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Port (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 25
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: fea00000-feafffff
	Prefetchable memory behind bridge: 00000000d0800000-00000000d08fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1424
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 09) (prog-if 30 [XHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device 5004
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at feb6a000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd

00:10.1 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 09) (prog-if 30 [XHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device 5004
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at feb68000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd

00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [IDE mode] (rev 40) (prog-if 01 [AHCI 1.0])
	Subsystem: Gigabyte Technology Co., Ltd Device b002
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32
	Interrupt: pin A routed to IRQ 19
	Region 0: I/O ports at f190 [size=8]
	Region 1: I/O ports at f180 [size=4]
	Region 2: I/O ports at f170 [size=8]
	Region 3: I/O ports at f160 [size=4]
	Region 4: I/O ports at f150 [size=16]
	Region 5: Memory at feb71000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11) (prog-if 10 [OHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device 5004
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at feb70000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11) (prog-if 20 [EHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device 5004
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at feb6f000 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11) (prog-if 10 [OHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device 5004
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at feb6e000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11) (prog-if 20 [EHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device 5004
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at feb6d000 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 16)
	Subsystem: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Kernel driver in use: piix4_smbus
	Kernel modules: i2c_piix4, sp5100_tco

00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD] FCH IDE Controller (prog-if 8a [Master SecP PriP])
	Subsystem: Gigabyte Technology Co., Ltd Device 5002
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32
	Interrupt: pin B routed to IRQ 17
	Region 0: I/O ports at 01f0 [size=8]
	Region 1: I/O ports at 03f4
	Region 2: I/O ports at 0170 [size=8]
	Region 3: I/O ports at 0374
	Region 4: I/O ports at f100 [size=16]
	Kernel driver in use: pata_atiixp
	Kernel modules: pata_atiixp, pata_acpi, ata_generic

00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 01)
	Subsystem: Gigabyte Technology Co., Ltd Device a002
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at feb60000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
	Subsystem: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop+ ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=64
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: fff00000-000fffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-

00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11) (prog-if 10 [OHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device 5004
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at feb6c000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 0
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 1
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 2
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Kernel modules: amd64_edac_mod

00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 3
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Capabilities: <access denied>
	Kernel driver in use: k10temp
	Kernel modules: k10temp

00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 4
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Kernel driver in use: fam15h_power
	Kernel modules: fam15h_power

00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 5
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
	Subsystem: Gigabyte Technology Co., Ltd Motherboard
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 37
	Region 0: I/O ports at e000 [size=256]
	Region 2: Memory at fea00000 (64-bit, non-prefetchable) [size=4K]
	Region 4: Memory at d0800000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation

[Wan Zongshun]

-------- Original Message --------
> Add functions to check whether translation is already enabled in IOMMU.
>
> Signed-off-by: Baoquan He <bhe@redhat.com>
> ---
>  drivers/iommu/amd_iommu_init.c  | 25 +++++++++++++++++++++++++
>  drivers/iommu/amd_iommu_types.h |  4 ++++
>  2 files changed, 29 insertions(+)
>
> diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
> index 8361367d..9e1dfcb 100644
> --- a/drivers/iommu/amd_iommu_init.c
> +++ b/drivers/iommu/amd_iommu_init.c
> @@ -229,6 +229,26 @@ static int amd_iommu_enable_interrupts(void);
>  static int __init iommu_go_to_state(enum iommu_init_state state);
>  static void init_device_table_dma(void);
>
> +
> +static bool translation_pre_enabled(struct amd_iommu *iommu)
> +{
> +	return (iommu->flags & AMD_IOMMU_FLAG_TRANS_PRE_ENABLED);
> +}
> +
> +static void clear_translation_pre_enabled(struct amd_iommu *iommu)
> +{
> +        iommu->flags &= ~AMD_IOMMU_FLAG_TRANS_PRE_ENABLED;
> +}
> +
> +static void init_translation_status(struct amd_iommu *iommu)
> +{
> +	u32 ctrl;
> +
> +	ctrl = readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
> +	if (ctrl & (1<<CONTROL_IOMMU_EN))
> +		iommu->flags |= AMD_IOMMU_FLAG_TRANS_PRE_ENABLED;
> +}
> +
>  static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu,
>  				    u8 bank, u8 cntr, u8 fxn,
>  				    u64 *value, bool is_write);
> @@ -1101,6 +1121,11 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
>
>  	iommu->int_enabled = false;
>
> +	init_translation_status(iommu);
> +
> +	if (translation_pre_enabled())
> +		pr_warn("Translation is already enabled - trying to copy translation structures\n");
> +

You missed this 'iommu' parameter here, even I saw you fixed it in 
another patch, but please keep each patch to be meaningful.

>  	ret = init_iommu_from_acpi(iommu, h);
>  	if (ret)
>  		return ret;
> diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
> index 9d32b20..01783cc 100644
> --- a/drivers/iommu/amd_iommu_types.h
> +++ b/drivers/iommu/amd_iommu_types.h
> @@ -384,6 +384,7 @@ extern struct kmem_cache *amd_iommu_irq_cache;
>  #define APERTURE_PAGE_INDEX(a)	(((a) >> 21) & 0x3fULL)
>
>
> +
>  /*
>   * This struct is used to pass information about
>   * incoming PPR faults around.
> @@ -401,6 +402,8 @@ struct amd_iommu_fault {
>  struct iommu_domain;
>  struct irq_domain;
>
> +#define AMD_IOMMU_FLAG_TRANS_PRE_ENABLED      (1 << 0)
> +
>  /*
>   * This structure contains generic data for  IOMMU protection domains
>   * independent of their use.
> @@ -525,6 +528,7 @@ struct amd_iommu {
>  	struct irq_domain *ir_domain;
>  	struct irq_domain *msi_domain;
>  #endif
> +	u32 flags;
>  };
>
>  struct devid_map {
>

Re: [Patch v4 6/9] iommu/amd: Add function copy_dev_tables

[Wan Zongshun]

-------- Original Message --------
> Add function copy_dev_tables to copy old DTE of the 1st kernel to
> the new DTE table. Since all iommu share the same DTE table the
> copy only need be done once as long as the physical address of
> old DTE table is retrieved from iommu reg. Besides the old domain
> id occupied in 1st kernel need be reserved in order to avoid touch
> the old translation tables.
>
> Signed-off-by: Baoquan He <bhe@redhat.com>
> ---
>  drivers/iommu/amd_iommu.c       |  2 +-
>  drivers/iommu/amd_iommu_init.c  | 38 ++++++++++++++++++++++++++++++++++++++
>  drivers/iommu/amd_iommu_types.h |  1 +
>  3 files changed, 40 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
> index 1c916cc..f3bd7fd 100644
> --- a/drivers/iommu/amd_iommu.c
> +++ b/drivers/iommu/amd_iommu.c
> @@ -2081,7 +2081,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
>  		flags    |= tmp;
>  	}
>
> -	flags &= ~(0xffffUL);
> +	flags &= ~DEV_DOMID_MASK;
>  	flags |= domain->id;
>
>  	amd_iommu_dev_table[devid].data[1]  = flags;
> diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
> index 9c1aa54..71c7ac9 100644
> --- a/drivers/iommu/amd_iommu_init.c
> +++ b/drivers/iommu/amd_iommu_init.c
> @@ -664,6 +664,44 @@ static int get_dev_entry_bit(u16 devid, u8 bit)
>  }
>
>
> +static int copy_dev_tables(void)
> +{
> +	u64 entry;
> +	u32 lo, hi, devid;
> +	phys_addr_t old_devtb_phys;
> +	struct dev_table_entry *old_devtb;
> +	u16 dom_id, dte_v;
> +	struct amd_iommu *iommu;
> +	static int copied;
> +
> +        for_each_iommu(iommu) {
> +		if (!translation_pre_enabled()) {
> +			pr_err("IOMMU:%d is not pre-enabled!/n", iommu->index);
> +			return -1;
> +		}

If one iommu is not pre-enabled, all iommus will be exit the copy.

> +
> +		if (copied)
> +			continue;
> +
> +                lo = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET);
> +                hi = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET + 4);
> +                entry = (((u64) hi) << 32) + lo;
> +                old_devtb_phys = entry & PAGE_MASK;
> +                old_devtb = memremap(old_devtb_phys, dev_table_size, MEMREMAP_WB);
> +                for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) {
> +                        amd_iommu_dev_table[devid] = old_devtb[devid];
> +                        dom_id = amd_iommu_dev_table[devid].data[1] & DEV_DOMID_MASK;
> +			dte_v = amd_iommu_dev_table[devid].data[0] & DTE_FLAG_V;
> +			if (!dte_v)
> +				continue;
> +                        __set_bit(dom_id, amd_iommu_pd_alloc_bitmap);
> +                }
> +		memunmap(old_devtb);
> +		copied = 1;
> +        }
> +	return 0;
> +}
> +
>  void amd_iommu_apply_erratum_63(u16 devid)
>  {
>  	int sysmgt;
> diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
> index 7796edf..34acd73 100644
> --- a/drivers/iommu/amd_iommu_types.h
> +++ b/drivers/iommu/amd_iommu_types.h
> @@ -311,6 +311,7 @@
>  #define DTE_FLAG_MASK	(0x3ffULL << 32)
>  #define DTE_GLX_SHIFT	(56)
>  #define DTE_GLX_MASK	(3)
> +#define DEV_DOMID_MASK 	0xffffULL
>
>  #define DTE_GCR3_VAL_A(x)	(((x) >> 12) & 0x00007ULL)
>  #define DTE_GCR3_VAL_B(x)	(((x) >> 15) & 0x0ffffULL)
>

Re: [Patch v4 7/9] iommu/amd: copy old trans table from old kernel

[Wan Zongshun]

-------- Original Message --------
> From: Baoquan HE <bhe@dhcp-129-10.nay.redhat.com>
>
> Here several things need be done:
> 1) Initialize amd_iommu_dev_table because it was set several times
>    since kdump kernel reboot. We don't need the set because we will
>    copy the content from old kernel.
> 2) Re-enable event/cmd buffer
> 3) Install the DTE table to reg
> 4) Flush all caches
>
> Signed-off-by: Baoquan He <bhe@redhat.com>
> ---
>  drivers/iommu/amd_iommu_init.c | 47 +++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 42 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
> index 71c7ac9..66a1fa5 100644
> --- a/drivers/iommu/amd_iommu_init.c
> +++ b/drivers/iommu/amd_iommu_init.c
> @@ -35,7 +35,7 @@
>  #include <asm/iommu_table.h>
>  #include <asm/io_apic.h>
>  #include <asm/irq_remapping.h>
> -
> +#include <linux/crash_dump.h>
>  #include "amd_iommu_proto.h"
>  #include "amd_iommu_types.h"
>  #include "irq_remapping.h"
> @@ -675,7 +675,7 @@ static int copy_dev_tables(void)
>  	static int copied;
>
>          for_each_iommu(iommu) {
> -		if (!translation_pre_enabled()) {
> +		if (!translation_pre_enabled(iommu)) {
>  			pr_err("IOMMU:%d is not pre-enabled!/n", iommu->index);
>  			return -1;
>  		}
> @@ -1160,8 +1160,13 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
>  	iommu->int_enabled = false;
>
>  	init_translation_status(iommu);
> +	if (translation_pre_enabled(iommu) && !is_kdump_kernel()) {
> +                        clear_translation_pre_enabled(iommu);
> +                        pr_warn("Translation was enabled for IOMMU:%d but we are not in kdump mode\n",
> +                                iommu->index);
> +                }
>
> -	if (translation_pre_enabled())
> +	if (translation_pre_enabled(iommu))
>  		pr_warn("Translation is already enabled - trying to copy translation structures\n");
>
>  	ret = init_iommu_from_acpi(iommu, h);
> @@ -1730,9 +1735,41 @@ static void early_enable_iommu(struct amd_iommu *iommu)
>  static void early_enable_iommus(void)
>  {
>  	struct amd_iommu *iommu;
> +	bool is_pre_enabled=false;
>
> -	for_each_iommu(iommu)
> -		early_enable_iommu(iommu);
> +	for_each_iommu(iommu) {
> +		if ( translation_pre_enabled(iommu) ) {
> +			is_pre_enabled = true;
> +			break;
> +		}
> +	}

I wonder if you consider multi-iommus condition for your those series 
patches?

> +
> +	if ( !is_pre_enabled) {

Why not use translation_pre_enabled(iommu) to judge pre-enable directly?

> +		for_each_iommu(iommu)
> +			early_enable_iommu(iommu);
> +	} else {
> +		if (copy_dev_tables()) {
> +			pr_err("Failed to copy translation tables from previous kernel.\n");
> +			/*
> +			 * If failed to copy dev tables from old kernel, continue to proceed
> +			 * as it does in normal kernel.
> +			 */
> +			for_each_iommu(iommu) {
> +				clear_translation_pre_enabled(iommu);
> +				early_enable_iommu(iommu);
> +			}
> +		} else {
> +			pr_info("Copied translation tables from previous kernel.\n");
> +			for_each_iommu(iommu) {
> +				iommu_feature_disable(iommu, CONTROL_CMDBUF_EN);
> +		                iommu_feature_disable(iommu, CONTROL_EVT_LOG_EN);
> +		                iommu_enable_command_buffer(iommu);
> +		                iommu_enable_event_buffer(iommu);
> +		                iommu_set_device_table(iommu);
> +		                iommu_flush_all_caches(iommu);
> +			}
> +		}
> +	}
>  }
>
>  static void enable_iommus_v2(void)
>

Re: [Patch v4 9/9] iommu/amd: Check the validation of irq table and domain id

[Wan Zongshun]

-------- Original Message --------
> From: Baoquan HE <bhe@dhcp-129-10.nay.redhat.com>
>
> If not valid just skip reserving the old domain id.
>
> Signed-off-by: Baoquan He <bhe@redhat.com>
> ---
>  drivers/iommu/amd_iommu.c       | 4 ----
>  drivers/iommu/amd_iommu_init.c  | 5 +++--
>  drivers/iommu/amd_iommu_types.h | 5 +++++
>  3 files changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
> index f3bd7fd..40c4a05 100644
> --- a/drivers/iommu/amd_iommu.c
> +++ b/drivers/iommu/amd_iommu.c
> @@ -3697,10 +3697,6 @@ struct amd_ir_data {
>
>  static struct irq_chip amd_ir_chip;
>
> -#define DTE_IRQ_PHYS_ADDR_MASK	(((1ULL << 45)-1) << 6)
> -#define DTE_IRQ_REMAP_INTCTL    (2ULL << 60)
> -#define DTE_IRQ_TABLE_LEN       (8ULL << 1)
> -#define DTE_IRQ_REMAP_ENABLE    1ULL

At least, you should give reason comments to why you want move it.

Any drivers files you want to use them as well?

>
>  static void set_dte_irq_entry(u16 devid, struct irq_remap_table *table)
>  {
> diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
> index 47e5972..263704a 100644
> --- a/drivers/iommu/amd_iommu_init.c
> +++ b/drivers/iommu/amd_iommu_init.c
> @@ -670,7 +670,7 @@ static int copy_dev_tables(void)
>  	u32 lo, hi, devid;
>  	phys_addr_t old_devtb_phys;
>  	struct dev_table_entry *old_devtb;
> -	u16 dom_id, dte_v;
> +	u16 dom_id, dte_v, irq_v;
>  	struct amd_iommu *iommu;
>  	static int copied;
>
> @@ -692,7 +692,8 @@ static int copy_dev_tables(void)
>                          amd_iommu_dev_table[devid] = old_devtb[devid];
>                          dom_id = amd_iommu_dev_table[devid].data[1] & DEV_DOMID_MASK;
>  			dte_v = amd_iommu_dev_table[devid].data[0] & DTE_FLAG_V;
> -			if (!dte_v)
> +			irq_v = amd_iommu_dev_table[devid].data[2] & DTE_IRQ_REMAP_ENABLE;
> +			if (!dte_v || !irq_v || !dom_id)
>  				continue;
>                          __set_bit(dom_id, amd_iommu_pd_alloc_bitmap);
>                  }
> diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
> index 34acd73..08340f5 100644
> --- a/drivers/iommu/amd_iommu_types.h
> +++ b/drivers/iommu/amd_iommu_types.h
> @@ -224,6 +224,11 @@
>
>  #define PPR_REQ_FAULT		0x01
>
> +#define DTE_IRQ_PHYS_ADDR_MASK	(((1ULL << 45)-1) << 6)
> +#define DTE_IRQ_REMAP_INTCTL    (2ULL << 60)
> +#define DTE_IRQ_TABLE_LEN       (8ULL << 1)
> +#define DTE_IRQ_REMAP_ENABLE    1ULL
> +
>  #define PAGE_MODE_NONE    0x00
>  #define PAGE_MODE_1_LEVEL 0x01
>  #define PAGE_MODE_2_LEVEL 0x02
>

Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation

[Baoquan He]

On 05/28/16 at 08:49pm, Wan Zongshun wrote:
> 
> 
> -------- Original Message --------
> >@@ -1101,6 +1121,11 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
> >
> > 	iommu->int_enabled = false;
> >
> >+	init_translation_status(iommu);
> >+
> >+	if (translation_pre_enabled())
> >+		pr_warn("Translation is already enabled - trying to copy translation structures\n");
> >+
> 
> You missed this 'iommu' parameter here, even I saw you fixed it in
> another patch, but please keep each patch to be meaningful.

Hi Zongshun,

Thanks for reviewing this patchset and great comments, will remember and
update with change.

Yes, translation_pre_enabled() in this patchset need a parameter "struct
amd_iommu*". 

In fact I am still debugging and trying to figure out what need be done
further to stop the IO_PAGE_FAULT happened on ethernet network card. I
kept changing code and adjust the patches. Up to now seems I still
didn't figure out why. There must be something I didn't notice and
everything will be fine as soon as I close that valve. With my
understand pci bug scanning will detect each pci device and do the
initialization job like setting configuration space registers and
control registers. After that we can safely re-init the pci device and
re-install the new io-page tables, and this is how Joerg has done for
vt-d fix for kdump if my understanding is correct. And I tried to do
like that in this patchset, don't know why it doesn't work.

As you know in previous post I thought the final initialization of
device should be done when its related driver probe and do the mapping
job, I tried re-install io-page tables at this time. Seems it didn't
work too. So I left that way.

Sorry for this rough post, will pay attention and make a formal post if
there's new update.

Thanks
Baoquan
> 
> > 	ret = init_iommu_from_acpi(iommu, h);
> > 	if (ret)
> > 		return ret;
> >diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
> >index 9d32b20..01783cc 100644
> >--- a/drivers/iommu/amd_iommu_types.h
> >+++ b/drivers/iommu/amd_iommu_types.h
> >@@ -384,6 +384,7 @@ extern struct kmem_cache *amd_iommu_irq_cache;
> > #define APERTURE_PAGE_INDEX(a)	(((a) >> 21) & 0x3fULL)
> >
> >
> >+
> > /*
> >  * This struct is used to pass information about
> >  * incoming PPR faults around.
> >@@ -401,6 +402,8 @@ struct amd_iommu_fault {
> > struct iommu_domain;
> > struct irq_domain;
> >
> >+#define AMD_IOMMU_FLAG_TRANS_PRE_ENABLED      (1 << 0)
> >+
> > /*
> >  * This structure contains generic data for  IOMMU protection domains
> >  * independent of their use.
> >@@ -525,6 +528,7 @@ struct amd_iommu {
> > 	struct irq_domain *ir_domain;
> > 	struct irq_domain *msi_domain;
> > #endif
> >+	u32 flags;
> > };
> >
> > struct devid_map {
> >

Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation

[Baoquan He]

On 05/30/16 at 11:24am, Baoquan He wrote:
> On 05/28/16 at 08:49pm, Wan Zongshun wrote:
> In fact I am still debugging and trying to figure out what need be done
> further to stop the IO_PAGE_FAULT happened on ethernet network card. I
> kept changing code and adjust the patches. Up to now seems I still
> didn't figure out why. There must be something I didn't notice and
> everything will be fine as soon as I close that valve. With my
> understand pci bug scanning will detect each pci device and do the
 		 |_ bus
> initialization job like setting configuration space registers and
> control registers. After that we can safely re-init the pci device and
> re-install the new io-page tables, and this is how Joerg has done for
> vt-d fix for kdump if my understanding is correct. And I tried to do
> like that in this patchset, don't know why it doesn't work.

Re: [Patch v4 6/9] iommu/amd: Add function copy_dev_tables

[Baoquan He]

On 05/28/16 at 09:08pm, Wan Zongshun wrote:
> >+static int copy_dev_tables(void)
> >+{
> >+	u64 entry;
> >+	u32 lo, hi, devid;
> >+	phys_addr_t old_devtb_phys;
> >+	struct dev_table_entry *old_devtb;
> >+	u16 dom_id, dte_v;
> >+	struct amd_iommu *iommu;
> >+	static int copied;
> >+
> >+        for_each_iommu(iommu) {
> >+		if (!translation_pre_enabled()) {
> >+			pr_err("IOMMU:%d is not pre-enabled!/n", iommu->index);
> >+			return -1;
> >+		}
> 
> If one iommu is not pre-enabled, all iommus will be exit the copy.

Currently amd iommu driver make all iommu-s share a single device table.
When handling this code, I am struggling to take what way to make this
look better. Say we have two iommus A and B on a system, A is detected
to be pre_enabled, but B is not, I didn't think of a good way to do. Any
suggestion?

> 
> >+
> >+		if (copied)
> >+			continue;
> >+
> >+                lo = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET);
> >+                hi = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET + 4);
> >+                entry = (((u64) hi) << 32) + lo;
> >+                old_devtb_phys = entry & PAGE_MASK;
> >+                old_devtb = memremap(old_devtb_phys, dev_table_size, MEMREMAP_WB);
> >+                for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) {
> >+                        amd_iommu_dev_table[devid] = old_devtb[devid];
> >+                        dom_id = amd_iommu_dev_table[devid].data[1] & DEV_DOMID_MASK;
> >+			dte_v = amd_iommu_dev_table[devid].data[0] & DTE_FLAG_V;
> >+			if (!dte_v)
> >+				continue;
> >+                        __set_bit(dom_id, amd_iommu_pd_alloc_bitmap);
> >+                }
> >+		memunmap(old_devtb);
> >+		copied = 1;
> >+        }
> >+	return 0;
> >+}
> >+
> > void amd_iommu_apply_erratum_63(u16 devid)
> > {
> > 	int sysmgt;
> >diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
> >index 7796edf..34acd73 100644
> >--- a/drivers/iommu/amd_iommu_types.h
> >+++ b/drivers/iommu/amd_iommu_types.h
> >@@ -311,6 +311,7 @@
> > #define DTE_FLAG_MASK	(0x3ffULL << 32)
> > #define DTE_GLX_SHIFT	(56)
> > #define DTE_GLX_MASK	(3)
> >+#define DEV_DOMID_MASK 	0xffffULL
> >
> > #define DTE_GCR3_VAL_A(x)	(((x) >> 12) & 0x00007ULL)
> > #define DTE_GCR3_VAL_B(x)	(((x) >> 15) & 0x0ffffULL)
> >

Re: [Patch v4 9/9] iommu/amd: Check the validation of irq table and domain id

[Baoquan He]

On 05/28/16 at 09:30pm, Wan Zongshun wrote:
> 
> 
> -------- Original Message --------
> >From: Baoquan HE <bhe@dhcp-129-10.nay.redhat.com>
> >diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
> >index f3bd7fd..40c4a05 100644
> >--- a/drivers/iommu/amd_iommu.c
> >+++ b/drivers/iommu/amd_iommu.c
> >@@ -3697,10 +3697,6 @@ struct amd_ir_data {
> >
> > static struct irq_chip amd_ir_chip;
> >
> >-#define DTE_IRQ_PHYS_ADDR_MASK	(((1ULL << 45)-1) << 6)
> >-#define DTE_IRQ_REMAP_INTCTL    (2ULL << 60)
> >-#define DTE_IRQ_TABLE_LEN       (8ULL << 1)
> >-#define DTE_IRQ_REMAP_ENABLE    1ULL
> 
> At least, you should give reason comments to why you want move it.
> 
> Any drivers files you want to use them as well?

Yes, sorry fot this. I have several test machines. I made change on
them and made patches. In the machine I posted this patch was not
arranged well.

> 
> >
> > static void set_dte_irq_entry(u16 devid, struct irq_remap_table *table)
> > {
> >diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
> >index 47e5972..263704a 100644
> >--- a/drivers/iommu/amd_iommu_init.c
> >+++ b/drivers/iommu/amd_iommu_init.c
> >@@ -670,7 +670,7 @@ static int copy_dev_tables(void)
> > 	u32 lo, hi, devid;
> > 	phys_addr_t old_devtb_phys;
> > 	struct dev_table_entry *old_devtb;
> >-	u16 dom_id, dte_v;
> >+	u16 dom_id, dte_v, irq_v;
> > 	struct amd_iommu *iommu;
> > 	static int copied;
> >
> >@@ -692,7 +692,8 @@ static int copy_dev_tables(void)
> >                         amd_iommu_dev_table[devid] = old_devtb[devid];
> >                         dom_id = amd_iommu_dev_table[devid].data[1] & DEV_DOMID_MASK;
> > 			dte_v = amd_iommu_dev_table[devid].data[0] & DTE_FLAG_V;
> >-			if (!dte_v)
> >+			irq_v = amd_iommu_dev_table[devid].data[2] & DTE_IRQ_REMAP_ENABLE;
> >+			if (!dte_v || !irq_v || !dom_id)
> > 				continue;
> >                         __set_bit(dom_id, amd_iommu_pd_alloc_bitmap);
> >                 }
> >diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
> >index 34acd73..08340f5 100644
> >--- a/drivers/iommu/amd_iommu_types.h
> >+++ b/drivers/iommu/amd_iommu_types.h
> >@@ -224,6 +224,11 @@
> >
> > #define PPR_REQ_FAULT		0x01
> >
> >+#define DTE_IRQ_PHYS_ADDR_MASK	(((1ULL << 45)-1) << 6)
> >+#define DTE_IRQ_REMAP_INTCTL    (2ULL << 60)
> >+#define DTE_IRQ_TABLE_LEN       (8ULL << 1)
> >+#define DTE_IRQ_REMAP_ENABLE    1ULL
> >+
> > #define PAGE_MODE_NONE    0x00
> > #define PAGE_MODE_1_LEVEL 0x01
> > #define PAGE_MODE_2_LEVEL 0x02
> >