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Re: Kernel XFS(..?) regression (happened again)

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: Kernel XFS(..?) regression (happened again)
From: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Date: Mon, 17 Aug 2009 10:25:22 -0400 (EDT)
Cc: Felix Blyakher <felixb@xxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx
In-reply-to: <20090816022331.GA2309@xxxxxxxxxxxxx>
References: <alpine.DEB.2.00.0908080422440.12329@xxxxxxxxxxxxxxxx> <00980BBF-1206-4BEF-A8AE-B4A8DAE7EC27@xxxxxxx> <alpine.DEB.2.00.0908090605080.16485@xxxxxxxxxxxxxxxx> <alpine.DEB.2.00.0908110624420.22426@xxxxxxxxxxxxxxxx> <20090816022331.GA2309@xxxxxxxxxxxxx>
User-agent: Alpine 2.00 (DEB 1167 2008-08-23)

On Sat, 15 Aug 2009, Christoph Hellwig wrote:

All your traces seem to have in common that you're block on locks hold
by processed doing I/O.  Especially a lot of page locks which are
controlled by the VM and not the filesystem.  Can you try with commit
8aa7e847d834ed937a9ad37a0f2ad5b8584c1ab0 from 2.6.31-rc applied, or
better directly 2.6.3-rc6?

I would be surprised if this is something inside XFS, but running with
CONFIG_XFS_DEBUG never hurts.


Thanks, running with DEBUG and 2.6.31-rc6.


So far the problem has not surfaced, but it normally takes 24-48 hours.


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