From: Dave Jones <davej@redhat.com>
To: linux-mm@kvack.org
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH] Print loaded modules when we encounter a bad page map.
Date: Tue, 11 Dec 2012 12:17:45 -0500 [thread overview]
Message-ID: <20121211171745.GA17489@redhat.com> (raw)
When we see reports like https://bugzilla.redhat.com/show_bug.cgi?id=883576
it might be useful to know what modules had been loaded, so they can be compared
with similar reports to see if there is a common suspect.
Signed-off-by: Dave Jones <davej@redhat.com>
diff --git a/mm/memory.c b/mm/memory.c
index 221fc9f..7fc8c01 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -57,6 +57,7 @@
#include <linux/swapops.h>
#include <linux/elf.h>
#include <linux/gfp.h>
+#include <linux/module.h>
#include <asm/io.h>
#include <asm/pgalloc.h>
@@ -708,6 +709,7 @@ 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);
+ print_modules();
dump_stack();
add_taint(TAINT_BAD_PAGE);
}
--
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Jones <davej@redhat.com>
To: linux-mm@kvack.org
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH] Print loaded modules when we encounter a bad page map.
Date: Tue, 11 Dec 2012 12:17:45 -0500 [thread overview]
Message-ID: <20121211171745.GA17489@redhat.com> (raw)
When we see reports like https://bugzilla.redhat.com/show_bug.cgi?id=883576
it might be useful to know what modules had been loaded, so they can be compared
with similar reports to see if there is a common suspect.
Signed-off-by: Dave Jones <davej@redhat.com>
diff --git a/mm/memory.c b/mm/memory.c
index 221fc9f..7fc8c01 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -57,6 +57,7 @@
#include <linux/swapops.h>
#include <linux/elf.h>
#include <linux/gfp.h>
+#include <linux/module.h>
#include <asm/io.h>
#include <asm/pgalloc.h>
@@ -708,6 +709,7 @@ 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);
+ print_modules();
dump_stack();
add_taint(TAINT_BAD_PAGE);
}
next reply other threads:[~2012-12-11 17:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-11 17:17 Dave Jones [this message]
2012-12-11 17:17 ` [PATCH] Print loaded modules when we encounter a bad page map Dave Jones
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