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Linux v3.9-4516-gc9ef713

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This commit is contained in:
Josh Boyer 2013-04-30 14:08:17 -04:00
commit 2f0dc63fe0
4 changed files with 24 additions and 10 deletions
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25
debug-bad-pte-modules.patch
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@ -1,11 +1,18 @@
When we encounter a bad PTE, print out what modules were loaded,
so we can see if there is a common driver potentially at fault.
From 3cd4fefa1d614debf75f059def34ac1aaaf96501 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@redhat.com>
Date: Tue, 30 Apr 2013 14:01:57 -0400
Subject: [PATCH] When we encounter a bad PTE, print out what modules were
loaded, so we can see if there is a common driver potentially at fault.
Signed-off-by: Dave Jones <davej@redhat.com>
---
mm/memory.c | 2 ++
1 file changed, 2 insertions(+)
diff -durpN '--exclude-from=/home/davej/.exclude' /home/davej/src/kernel/git-trees/linux/mm/memory.c linux-dj/mm/memory.c
--- /home/davej/src/kernel/git-trees/linux/mm/memory.c 2013-02-26 14:41:18.591116577 -0500
+++ linux-dj/mm/memory.c 2013-02-28 20:04:37.678304092 -0500
diff --git a/mm/memory.c b/mm/memory.c
index 6dc1882..99564df 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -57,6 +57,7 @@
#include <linux/swapops.h>
#include <linux/elf.h>
@ -14,12 +21,14 @@ diff -durpN '--exclude-from=/home/davej/.exclude' /home/davej/src/kernel/git-tre
#include <linux/migrate.h>
#include <linux/string.h>
@@ -719,6 +722,7 @@ static void print_bad_pte(struct vm_area
@@ -720,6 +721,7 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
if (vma->vm_file && vma->vm_file->f_op)
print_symbol(KERN_ALERT "vma->vm_file->f_op->mmap: %s\n",
(unsigned long)vma->vm_file->f_op->mmap);
printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pSR\n",
vma->vm_file->f_op->mmap);
+ print_modules();
dump_stack();
add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
}
--
1.8.1.4