This is a note to let you know that I've just added the patch titled
kmemleak: Initialise kmemleak after debug_objects_mem_init()
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kmemleak-initialise-kmemleak-after-debug_objects_mem_init.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 9b090f2da85bd0df5e1a1ecfe4120b7b50358f48 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <[email protected]>
Date: Thu, 19 May 2011 16:25:30 +0100
Subject: kmemleak: Initialise kmemleak after debug_objects_mem_init()
From: Catalin Marinas <[email protected]>
commit 9b090f2da85bd0df5e1a1ecfe4120b7b50358f48 upstream.
Kmemleak frees objects via RCU and when CONFIG_DEBUG_OBJECTS_RCU_HEAD
is enabled, the RCU callback triggers a call to free_object() in
lib/debugobjects.c. Since kmemleak is initialised before debug objects
initialisation, it may result in a kernel panic during booting. This
patch moves the kmemleak_init() call after debug_objects_mem_init().
Reported-by: Marcin Slusarz <[email protected]>
Tested-by: Tejun Heo <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
init/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/init/main.c
+++ b/init/main.c
@@ -580,8 +580,8 @@ asmlinkage void __init start_kernel(void
#endif
page_cgroup_init();
enable_debug_pagealloc();
- kmemleak_init();
debug_objects_mem_init();
+ kmemleak_init();
setup_per_cpu_pageset();
numa_policy_init();
if (late_time_init)
Patches currently in stable-queue which might be from [email protected]
are
queue-2.6.39/kmemleak-do-not-return-a-pointer-to-an-object-that-kmemleak-did-not-get.patch
queue-2.6.39/kmemleak-initialise-kmemleak-after-debug_objects_mem_init.patch
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