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Re: BUG: sleeping function called from invalid context at kernel/rwsem.c

To: "Christoph Hellwig" <hch@xxxxxxxxxxxxx>
Subject: Re: BUG: sleeping function called from invalid context at kernel/rwsem.c:131 XFS? (was: Re: linux-next: Tree for October 17)
From: "Alexander Beregalov" <a.beregalov@xxxxxxxxx>
Date: Mon, 20 Oct 2008 21:13:05 +0400
Cc: "Arjan van de Ven" <arjan@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx, linux-next@xxxxxxxxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>
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2008/10/20 Christoph Hellwig <hch@xxxxxxxxxxxxx>:
> On Mon, Oct 20, 2008 at 06:58:09PM +0400, Alexander Beregalov wrote:
>> Hi Christoph
>>
>> I have the same result with next-1020 and today's xfs-2.6.git/master
>> (
>> commit bfd2bd10da76378dc4afd87d7d204a1d3d70b347
>> Author: David Chinner <david@xxxxxxxxxxxxx>
>> Date:   Fri Oct 17 15:36:23 2008 +1000
>>     Inode: Allow external list initialisation
>> )
Ha, that kernel (xfs/master) has made my system dead locked.
SysRQ-d:
Show all locks held in the system
1 lock held by pdflush
(&type->s_umount_key#18{----}, at writeback_inodes
1 lock held by login
(&(&ip->i_iolock)->mr_lock){----} at xfs_ilock
and so on ( many locks at xfs_ilock)

>>
>> Should I start bisecting?
>
> That would be extremely helpful!
>
>
> And as mentioned in the other mail I still can't reproduce it, but I can
> currently only test on x86-32, not x86-64.
>

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