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Date: Sat, 22 Aug 2009 16:15:59 -0400
From: Christoph Hellwig <hch@infradead.org>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: Christoph Hellwig <hch@infradead.org>, linux-kernel@vger.kernel.org,
       xfs@oss.sgi.com
Subject: Re: Kernel 2.6.30.4 XFS(..?) regression (& with/2.6.31-rc6)
Message-ID: <20090822201558.GA17955@infradead.org>
References: <alpine.DEB.2.00.0908080422440.12329@p34.internal.lan> <00980BBF-1206-4BEF-A8AE-B4A8DAE7EC27@sgi.com> <alpine.DEB.2.00.0908090605080.16485@p34.internal.lan> <alpine.DEB.2.00.0908110624420.22426@p34.internal.lan> <20090816022331.GA2309@infradead.org> <alpine.DEB.2.00.0908171024380.12533@p34.internal.lan> <alpine.DEB.2.00.0908220624440.30321@p34.internal.lan> <20090822142550.GA10003@infradead.org> <alpine.DEB.2.00.0908221044420.30321@p34.internal.lan>
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On Sat, Aug 22, 2009 at 10:45:13AM -0400, Justin Piszcz wrote:
>> Yes, entirely possible.   All the crypto loop / dm implementation used
>> to have a tendency to never complete I/O once in a while, although that
>> didn't happen anymore recently.
>
> Ok,
>
> What is the best way to debug the issue? git bi-sects between 2.6.29.x 
> and 2.6.31-rc6? or?

Well, that would be a good way to find it.  But I'm personally not
interested in spending much time on debugging a problem if it only
happens with fishy out of tree modules.