linux-kernel - Re: [BUG] kernel BUG at mm/truncate.c:479! on 2.6.37-rc8

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Date:	Thu, 20 Jan 2011 18:13:38 +0530
From:	Gurudas Pai <gurudas.pai@...cle.com>
To:	Miklos Szeredi <miklos@...redi.hu>
CC:	hughd@...gle.com, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG] kernel BUG at mm/truncate.c:479! on 2.6.37-rc8

Miklos Szeredi wrote:
> On Thu, 20 Jan 2011, Gurudas Pai wrote:
>> Hi Hugh,
>>
>> Gurudas Pai wrote:
>>>>> With 2.6.37-rc8 , run a fio test over nfs, with following jobfile, 
>>>>> and we
>>>>> hit kernel bug.
>>>> Have you tried the same test on earlier releases?
>>>> I think the bug is old, yet only recently reported.
>>> I tried with 2.6.36.2 , even there it is panicing.
>>>
>>>
>>>> This NFS-triggered kernel BUG at mm/truncate.c:479 sounds very like
>>>> the FUSE-triggered kernel BUG at mm/truncate.c:475 on 2.6.36.1 for
>>>> which Miklos posted a patch on 14 December.  Please give his patch
>>>> (below) a try and let us know if it fixes the issue for you - thanks.
>>> Issue fixed with the patch, Thanks :)
>> Is this patch included in mainline ?
> 
> Apparently not.  I'll update the patch and send it to Andrew shorty.

Thanks Miklos. Please let me know if further testing is required, happy 
to test.

Thanks,
-Guru
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