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Re: CPU stuck for 67s (kernel BUG) + in xfs_trans_committed_bulk while d

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: CPU stuck for 67s (kernel BUG) + in xfs_trans_committed_bulk while deleting lots a files (mostly hard-links)
From: Jeroen Massar <jeroen@xxxxxxxxx>
Date: Wed, 07 Sep 2011 17:48:12 +0200
Cc: xfs@xxxxxxxxxxx
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In-reply-to: <20110907113723.GA1701@xxxxxxxxxxxxx>
Organization: Unfix
References: <4E674FD6.8030408@xxxxxxxxx> <20110907113723.GA1701@xxxxxxxxxxxxx>
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On 2011-09-07 13:37 , Christoph Hellwig wrote:
> On Wed, Sep 07, 2011 at 01:04:54PM +0200, Jeroen Massar wrote:
>> As partially mentioned in the kernel BUG message this is Debian's
>> edition of linux-image-2.6.39-2-amd64 and according to the Debian
>> changelogs nothing new has been introduced. 3.0.0-3 is available, but as
>> kernel.org is down, bit hard to figure out what changes where made
>> between those versions and if they can affect this at all...
>>
>> Anybody any ideas? :)
> 
> You'll want at least commit 1316d4da3f632d5843d5a446203e73067dc40f09
> 
>       xfs: unpin stale inodes directly in IOP_COMMITTED
> 
> from kernel 3.0.  In addition commit 1d8c95a363bf8cd4d4182dd19c01693b635311c2
> 
>       xfs: use a cursor for bulk AIL insertion
> 
> from 3.1-rc should help even more with this workload.

Upgraded to the 3.1-rc4 from experimental, and all seems to be quite
fine upto now. Even with 60% system during rm's it is not freezing up
(upto now, that I noticed) thus that is a great thing.

Thanks for getting this problem out of the way.

Greets,
 Jeroen

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