From: Venki Pallipadi <venkatesh.pallipadi@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
balbir@linux.vnet.ibm.com, linux-kernel@vger.kernel.org,
Linux ACPI mailing list <linux-acpi@vger.kernel.org>,
Intel E/100 mailing list <e1000-devel@lists.sourceforge.net>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: 2.6.24-rc8-mm1
Date: Thu, 17 Jan 2008 15:33:55 -0800 [thread overview]
Message-ID: <20080117233355.GA13590@linux-os.sc.intel.com> (raw)
In-Reply-To: <20080117114032.1f9f1df5.akpm@linux-foundation.org>
On Thu, Jan 17, 2008 at 11:40:32AM -0800, Andrew Morton wrote:
> On Thu, 17 Jan 2008 11:22:19 -0800 "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com> wrote:
>
> >
> > The problem is
> > >> modprobe:2584 conflicting cache attribute 50000000-50001000
> > >> uncached<->default
> >
> > Some address range here is being mapped with conflicting types.
> > Somewhere the range was mapped with default (write-back). Later
> > pci_iomap() is mapping that region as uncacheable which is basically
> > aliasing. PAT code detects the aliasing and fails the second uncacheable
> > request which leads in the failure.
>
> It sounds to me like you need considerably more runtime debugging and
> reporting support in that code. Ensure that it generates enough output
> both during regular operation and during failures for you to be able to
> diagnose things in a single iteration.
>
> We can always take it out later.
>
>
Patch below makes the interesting printks from PAT non DEBUG.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Index: linux-2.6.git/arch/x86/mm/ioremap.c
===================================================================
--- linux-2.6.git.orig/arch/x86/mm/ioremap.c 2008-01-17 03:18:59.000000000 -0800
+++ linux-2.6.git/arch/x86/mm/ioremap.c 2008-01-17 08:11:51.000000000 -0800
@@ -25,10 +25,13 @@
*/
void __iomem *ioremap_wc(unsigned long phys_addr, unsigned long size)
{
- if (pat_wc_enabled)
+ if (pat_wc_enabled) {
+ printk(KERN_INFO "ioremap_wc: addr %lx, size %lx\n",
+ phys_addr, size);
return __ioremap(phys_addr, size, _PAGE_WC);
- else
+ } else {
return ioremap_nocache(phys_addr, size);
+ }
}
EXPORT_SYMBOL(ioremap_wc);
Index: linux-2.6.git/arch/x86/mm/ioremap_32.c
===================================================================
--- linux-2.6.git.orig/arch/x86/mm/ioremap_32.c 2008-01-17 03:18:59.000000000 -0800
+++ linux-2.6.git/arch/x86/mm/ioremap_32.c 2008-01-17 08:10:58.000000000 -0800
@@ -164,6 +164,8 @@
void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
{
+ printk(KERN_INFO "ioremap_nocache: addr %lx, size %lx\n",
+ phys_addr, size);
return __ioremap(phys_addr, size, _PAGE_UC);
}
EXPORT_SYMBOL(ioremap_nocache);
Index: linux-2.6.git/arch/x86/mm/ioremap_64.c
===================================================================
--- linux-2.6.git.orig/arch/x86/mm/ioremap_64.c 2008-01-17 03:18:59.000000000 -0800
+++ linux-2.6.git/arch/x86/mm/ioremap_64.c 2008-01-17 08:10:13.000000000 -0800
@@ -144,7 +144,7 @@
void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
{
- printk(KERN_DEBUG "ioremap_nocache: addr %lx, size %lx\n",
+ printk(KERN_INFO "ioremap_nocache: addr %lx, size %lx\n",
phys_addr, size);
return __ioremap(phys_addr, size, _PAGE_UC);
}
Index: linux-2.6.git/arch/x86/mm/pat.c
===================================================================
--- linux-2.6.git.orig/arch/x86/mm/pat.c 2008-01-17 03:18:59.000000000 -0800
+++ linux-2.6.git/arch/x86/mm/pat.c 2008-01-17 08:06:23.000000000 -0800
@@ -170,7 +170,7 @@
if (!fattr && attr != ml->attr) {
printk(
- KERN_DEBUG "%s:%d conflicting cache attribute %Lx-%Lx %s<->%s\n",
+ KERN_WARNING "%s:%d conflicting cache attribute %Lx-%Lx %s<->%s\n",
current->comm, current->pid,
start, end,
cattr_name(attr), cattr_name(ml->attr));
@@ -205,7 +205,7 @@
list_for_each_entry(ml, &mattr_list, nd) {
if (ml->start == start && ml->end == end) {
if (ml->attr != attr)
- printk(KERN_DEBUG
+ printk(KERN_WARNING
"%s:%d conflicting cache attributes on free %Lx-%Lx %s<->%s\n",
current->comm, current->pid, start, end,
cattr_name(attr), cattr_name(ml->attr));
@@ -217,7 +217,7 @@
}
spin_unlock(&mattr_lock);
if (err)
- printk(KERN_DEBUG "%s:%d freeing invalid mattr %Lx-%Lx %s\n",
+ printk(KERN_WARNING "%s:%d freeing invalid mattr %Lx-%Lx %s\n",
current->comm, current->pid,
start, end, cattr_name(attr));
return err;
Index: linux-2.6.git/include/asm-x86/io_32.h
===================================================================
--- linux-2.6.git.orig/include/asm-x86/io_32.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-x86/io_32.h 2008-01-17 08:09:30.000000000 -0800
@@ -113,6 +113,8 @@
static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
{
+ printk(KERN_INFO "ioremap: addr %lx, size %lx\n",
+ offset, size);
return __ioremap(offset, size, 0);
}
Index: linux-2.6.git/include/asm-x86/io_64.h
===================================================================
--- linux-2.6.git.orig/include/asm-x86/io_64.h 2008-01-17 08:08:23.000000000 -0800
+++ linux-2.6.git/include/asm-x86/io_64.h 2008-01-17 08:08:44.000000000 -0800
@@ -154,7 +154,7 @@
static inline void __iomem * ioremap (unsigned long offset, unsigned long size)
{
- printk(KERN_DEBUG "ioremap: addr %lx, size %lx\n",
+ printk(KERN_INFO "ioremap: addr %lx, size %lx\n",
offset, size);
return __ioremap(offset, size, 0);
}
next prev parent reply other threads:[~2008-01-17 23:34 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-17 10:35 2.6.24-rc8-mm1 Andrew Morton
2008-01-17 12:41 ` 2.6.24-rc8-mm1 Build Failure on S390x Kamalesh Babulal
2008-01-17 14:05 ` Martin Schwidefsky
2008-01-17 12:46 ` 2.6.24-rc8-mm1 Balbir Singh
2008-01-17 18:40 ` 2.6.24-rc8-mm1 Andrew Morton
2008-01-17 19:22 ` 2.6.24-rc8-mm1 Pallipadi, Venkatesh
2008-01-17 19:40 ` 2.6.24-rc8-mm1 Andrew Morton
2008-01-17 19:47 ` [E1000-devel] 2.6.24-rc8-mm1 Brandeburg, Jesse
2008-01-17 23:33 ` Venki Pallipadi [this message]
2008-01-17 23:04 ` 2.6.24-rc8-mm1 Balbir Singh
2008-01-18 1:42 ` 2.6.24-rc8-mm1 Siddha, Suresh B
2008-01-18 5:06 ` 2.6.24-rc8-mm1 Balbir Singh
2008-01-17 20:25 ` 2.6.24-rc8-mm1 Balbir Singh
2008-01-17 13:21 ` [-mm Patch] UML: fix a building error WANG Cong
2008-01-17 17:59 ` Jeff Dike
2008-01-17 13:34 ` 2.6.24-rc8-mm1 Kamalesh Babulal
2008-01-17 14:26 ` 2.6.24-rc8-mm1 Ingo Molnar
2008-01-17 13:54 ` 2.6.24-rc8-mm1 kernel panic while bootup Kamalesh Babulal
2008-01-17 18:54 ` Andrew Morton
2008-01-17 19:00 ` Randy Dunlap
2008-01-20 6:24 ` Kamalesh Babulal
2008-01-20 7:17 ` Andrew Morton
2008-01-17 13:56 ` [-mm Patch] uml: fix a building error WANG Cong
2008-01-17 17:59 ` Jeff Dike
2008-01-17 18:11 ` Mariusz Kozlowski
2008-01-17 18:56 ` Andrew Morton
2008-01-17 19:38 ` Pallipadi, Venkatesh
2008-01-17 19:44 ` Andrew Morton
2008-01-17 20:42 ` Mariusz Kozlowski
2008-01-17 21:14 ` Jeff Dike
2008-01-17 21:41 ` Venki Pallipadi
2008-01-17 23:08 ` Jeff Dike
2008-01-17 23:17 ` Pallipadi, Venkatesh
2008-01-18 2:19 ` Jeff Dike
2008-01-17 18:56 ` Jeff Dike
2008-01-17 15:23 ` do_md_run returned -22 [Was: 2.6.24-rc8-mm1] Jiri Slaby
2008-01-17 19:01 ` Andrew Morton
2008-01-17 23:15 ` Neil Brown
2008-01-17 16:15 ` 2.6.24-rc8-mm1 Build Failure on scsi driver Kamalesh Babulal
2008-01-17 19:11 ` Andrew Morton
2008-01-18 0:53 ` [PATCH] aha152x: fix isa/pcmcia compile problem Tejun Heo
2008-01-18 6:29 ` Kamalesh Babulal
2008-01-18 6:37 ` 2.6.24-rc8-mm1 Build Failure on scsi driver Kamalesh Babulal
2008-01-18 7:20 ` [PATCH] SCSI: fix isa/pcmcia compile problem Tejun Heo
2008-01-18 7:30 ` Kamalesh Babulal
2008-01-18 14:58 ` James Bottomley
2008-01-18 23:27 ` Tejun Heo
2008-01-18 23:28 ` Tejun Heo
2008-01-18 23:32 ` James Bottomley
2008-01-18 23:46 ` Tejun Heo
2008-01-18 23:47 ` James Bottomley
2008-01-18 23:54 ` Tejun Heo
2008-01-21 9:56 ` Christoph Hellwig
2008-01-21 14:59 ` James Bottomley
2008-01-18 7:27 ` 2.6.24-rc8-mm1 Build Failure on scsi driver Andrew Morton
2008-01-17 16:48 ` 2.6.24-rc8-mm1 (BUG: sched_rt) Randy Dunlap
2008-01-17 17:11 ` Peter Zijlstra
2008-01-17 18:05 ` Randy Dunlap
2008-01-17 19:14 ` Randy Dunlap
2008-01-17 19:38 ` Andrew Morton
2008-01-17 17:15 ` Peter Zijlstra
2008-01-17 17:28 ` x86 refuses to build [Re: 2.6.24-rc8-mm1] Dhaval Giani
2008-01-17 18:44 ` Dhaval Giani
2008-01-18 8:59 ` Ingo Molnar
2008-01-18 16:16 ` Mike Travis
2008-01-17 18:13 ` 2.6.24-rc8-mm1: broken suspend Rafael J. Wysocki
2008-01-17 18:18 ` 2.6.24-rc8-mm1: powerpc: include/asm/nvram.h:62: error: field 'partition' has incomplete type Mariusz Kozlowski
2008-01-17 19:27 ` Andrew Morton
2008-01-17 19:06 ` 2.6.24-rc8-mm1 powerpc build errors Olof Johansson
2008-01-17 19:35 ` Andrew Morton
2008-01-17 22:00 ` Greg KH
2008-01-17 21:10 ` 2.6.24-rc8-mm1 Matt Mackall
2008-01-18 1:29 ` 2.6.24-rc8-mm1 Matt Mackall
2008-01-18 5:08 ` 2.6.24-rc8-mm1 Andrew Morton
2008-01-18 13:55 ` 2.6.24-rc8-mm1 Matt Mackall
2008-01-17 21:29 ` 2.6.24-rc8-mm1 - mkubootimg wants <zlib.h> Joseph Fannin
2008-01-17 22:21 ` Josh Boyer
2008-01-17 22:15 ` 2.6.24-rc8-mm1: powerpc oopses Mariusz Kozlowski
2008-01-17 22:51 ` Andrew Morton
2008-01-17 23:39 ` Matt Mackall
2008-01-18 0:05 ` Andrew Morton
2008-01-18 0:12 ` Matt Mackall
2008-01-18 0:29 ` Andrew Morton
2008-01-18 0:47 ` Matt Mackall
2008-01-18 1:07 ` Andrew Morton
2008-01-18 1:16 ` Matt Mackall
2008-01-18 17:23 ` Mariusz Kozlowski
2008-01-18 17:33 ` Matt Mackall
2008-01-18 6:14 ` 2.6.24-rc8-mm1 Build Failure at scripts/mkubooting/crc32.c Kamalesh Babulal
2008-01-18 8:06 ` Sam Ravnborg
2008-01-20 15:30 ` Mel Gorman
2008-01-18 7:09 ` 2.6.24-rc8-mm1 build failure on headers_check Kamalesh Babulal
2008-01-18 7:38 ` Andrew Morton
2008-01-18 8:36 ` 2.6.24-rc8-mm1 Kernel oops will running kernbench Kamalesh Babulal
2008-01-18 8:44 ` Andrew Morton
2008-01-18 9:01 ` Paul Mackerras
2008-01-18 9:34 ` Kamalesh Babulal
2008-01-18 10:19 ` Paul Mackerras
2008-01-18 10:26 ` Paul Mackerras
2008-01-18 10:44 ` Kamalesh Babulal
2008-01-18 10:54 ` Balbir Singh
2008-01-25 6:05 ` 2.6.24 Kernel oops will running kernbench regression from 2.6.24-rc8-mm1 Kamalesh Babulal
2008-01-18 13:34 ` 2.6.24-rc8-mm1: broken suspend (due to git-cpufreq.patch) Rafael J. Wysocki
2008-01-18 16:53 ` Dave Jones
2008-01-18 17:10 ` Dave Jones
2008-01-18 20:50 ` Rafael J. Wysocki
2008-01-18 21:55 ` Rafael J. Wysocki
2008-01-18 17:26 ` 2.6.24-rc8-mm1 (KVM build issues) Balbir Singh
2008-01-22 8:40 ` Andrew Morton
2008-01-18 18:06 ` 2.6.24-rc8-mm1 Kyle McMartin
2008-01-20 1:10 ` 2.6.24-rc8-mm1: WARN_ON() in clockevents_register_device() on HP nx6325 Rafael J. Wysocki
2008-01-20 10:24 ` Ingo Molnar
2008-01-20 11:21 ` Rafael J. Wysocki
2008-01-20 16:31 ` 2.6.24-rc8-mm1 Mel Gorman
2008-01-20 16:35 ` 2.6.24-rc8-mm1 Balbir Singh
2008-01-20 18:24 ` 2.6.24-rc8-mm1 Mel Gorman
2008-01-21 18:31 ` 2.6.24-rc8-mm1 - SELinux issues Valdis.Kletnieks
2008-01-21 18:53 ` [PATCH} 2.6.24-rc8-mm1 - x86_64 PAT issues with vesafb and NVidia cards Valdis.Kletnieks
2008-01-22 20:30 ` 2.6.24-rc8-mm1: sparc64 warning at fs/file_table.c:49 __fput+0x1a8/0x1e0() Mariusz Kozlowski
2008-01-22 21:02 ` Andrew Morton
2008-01-22 22:28 ` Dave Hansen
2008-01-22 23:13 ` Dave Hansen
2008-01-23 5:47 ` Christoph Hellwig
2008-02-01 23:34 ` Andrew Morton
2008-01-24 6:09 ` 2.6.24-rc8-mm1 Kernel oops on CIFS while running fsstress Kamalesh Babulal
2008-01-24 6:44 ` 2.6.24-rc8-mm1 Badness at net/ipv4/tcp_input.c:2506 Kamalesh Babulal
2008-01-25 0:04 ` 2.6.24-rc8-mm1: old sparc64 bug Mariusz Kozlowski
2008-01-25 17:11 ` Takashi Iwai
2008-01-25 18:34 ` Mariusz Kozlowski
2008-01-28 11:55 ` Takashi Iwai
2008-01-28 22:13 ` Mariusz Kozlowski
2008-01-25 21:59 ` 2.6.24-rc8-mm1 Torsten Kaiser
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