Blame debug-bad-pte-modules.patch
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From 3cd4fefa1d614debf75f059def34ac1aaaf96501 Mon Sep 17 00:00:00 2001
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From: Josh Boyer <jwboyer@redhat.com>
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Date: Tue, 30 Apr 2013 14:01:57 -0400
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Subject: [PATCH] When we encounter a bad PTE, print out what modules were
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loaded, so we can see if there is a common driver potentially at fault.
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Dave Jones |
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Dave Jones |
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Signed-off-by: Dave Jones <davej@redhat.com>
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---
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mm/memory.c | 2 ++
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1 file changed, 2 insertions(+)
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Dave Jones |
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diff --git a/mm/memory.c b/mm/memory.c
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index 6dc1882..99564df 100644
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--- a/mm/memory.c
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+++ b/mm/memory.c
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@@ -57,6 +57,7 @@
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#include <linux/swapops.h>
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#include <linux/elf.h>
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#include <linux/gfp.h>
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+#include <linux/module.h>
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#include <linux/migrate.h>
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#include <linux/string.h>
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@@ -720,6 +721,7 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
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Dave Jones |
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if (vma->vm_file && vma->vm_file->f_op)
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printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pSR\n",
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vma->vm_file->f_op->mmap);
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+ print_modules();
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dump_stack();
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add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
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}
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--
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1.8.1.4
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