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Re: 2.6.27-based kernel failing xfstests xfs/182

To: Chris Friesen <chris.friesen@xxxxxxxxxxx>
Subject: Re: 2.6.27-based kernel failing xfstests xfs/182
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Tue, 14 May 2013 10:45:21 +1000
Cc: Ben Myers <bpm@xxxxxxx>, Alex Elder <elder@xxxxxxxxxx>, xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <519176E7.8070204@xxxxxxxxxxx>
References: <519176E7.8070204@xxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Mon, May 13, 2013 at 05:27:35PM -0600, Chris Friesen wrote:
> 
> Hi,
> 
> I'm working on an embedded system running a 2.6.27-based kernel.
> 
> I'm digging into some intermittent xfs corruption issues.  Yes, I
> realize the right answer is probably to upgrade, but for the usual
> embedded reasons that's tricky.
> 
> I'm seeing test xfs/182 fail with 40 or so files showing messages like:
> 
> file /opt/xfstest2/960 has incorrect size - sync failed
> 
> In our case the xfs filesystems used for testing are on top of lvm,
> which is in turn on top of two SAS drives in RAID1.
> 
> Any suggestions on where I should start looking?  I'm looking at the
> "do_sync() and XFSQA test 182 failures...." thread on the mailing
> list from 2008, can someone point me to the commit that eventually
> resulted from that?

I doubt anyone can pinpoint a fix for you. I'd suggest that you find
the kernel release where the test starts passing, and the work
backwards from there...

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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