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SubjectRe: [REGRESSION] 3.7-rc2 kernel BUG at kernel/power/snapshot.c:517!
Hi Maciej,
Thanks for bisect, we will investigate this issue soon.
Gerry
On 2012-10-31 4:35, Maciej Rutecki wrote:
> On niedziela, 28 października 2012 o 22:45:26 Rafael J. Wysocki wrote:
>> On Sunday, October 28, 2012 10:12:49 PM Maciej Rutecki wrote:
>>> On niedziela, 21 października 2012 o 17:12:28 Maciej Rutecki wrote:
>>>> Error: kernel BUG at kernel/power/snapshot.c:517!
>>>>
>>>> Last known good: 3.6.1
>>>> Bad: 3.7-rc2
>>>>
>>>> Steps to reproduce:
>>>> 1. Boot system with 3.7-rc2 kernel
>>>> 2. Try suspend to disk (s2ram works OK)
>>>>
>>>> System dies on message:
>>>> http://mrutecki.pl/download/kernel/3.7-rc2/swinka/DSCN0280.jpg
>>>>
>>>> lspci:
>>>> http://mrutecki.pl/download/kernel/3.7-rc2/swinka/lspci.txt
>>>>
>>>> dmesg:
>>>> http://mrutecki.pl/download/kernel/3.7-rc2/swinka/dmesg-3.7-rc2.txt
>>>
>>> Still present in -rc3
>>
>> This appears to be a memory allocation error and I have no idea what
>> the reason of it is.
>>
>> Any chance to bisect?
>
> 7f1290f2f2a4d2c3f1b7ce8e87256e052ca23125 is the first bad commit
> commit 7f1290f2f2a4d2c3f1b7ce8e87256e052ca23125
> Author: Jianguo Wu <wujianguo@huawei.com>
> Date: Mon Oct 8 16:33:06 2012 -0700
>
> mm: fix-up zone present pages
> Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
> Reported-by: Petr Tesarik <ptesarik@suse.cz>
> Tested-by: Petr Tesarik <ptesarik@suse.cz>
> Cc: "Luck, Tony" <tony.luck@intel.com>
> Cc: Mel Gorman <mel@csn.ul.ie>
> Cc: Yinghai Lu <yinghai@kernel.org>
> Cc: Minchan Kim <minchan.kim@gmail.com>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: David Rientjes <rientjes@google.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
>
>
> Description says:
> "This patch intends to fix-up zone->present_pages when memory are freed to
> buddy system on x86_64 and IA64 platforms."
>
> but I use 32 bit kernel
>
> Revert this commit solves problem.
>
>
> Regards
>
> PS. Between Oct. 31-Nov. 4 I'm offline.


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