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Re: 3.9-rc2 xfs panic

To: CAI Qian <caiqian@xxxxxxxxxx>
Subject: Re: 3.9-rc2 xfs panic
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Tue, 12 Mar 2013 21:23:35 +1100
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <924669527.12643828.1363075451534.JavaMail.root@xxxxxxxxxx>
References: <20130312074608.GL21651@dastard> <924669527.12643828.1363075451534.JavaMail.root@xxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, Mar 12, 2013 at 04:04:11AM -0400, CAI Qian wrote:
> 
> 
> ----- Original Message -----
> > From: "Dave Chinner" <david@xxxxxxxxxxxxx>
> > To: "CAI Qian" <caiqian@xxxxxxxxxx>
> > Cc: xfs@xxxxxxxxxxx
> > Sent: Tuesday, March 12, 2013 3:46:08 PM
> > Subject: Re: 3.9-rc2 xfs panic
> > 
> > On Tue, Mar 12, 2013 at 02:34:07AM -0400, CAI Qian wrote:
> > > 
> > > 
> > > ----- Original Message -----
> > > > From: "Dave Chinner" <david@xxxxxxxxxxxxx>
> > > > To: "CAI Qian" <caiqian@xxxxxxxxxx>
> > > > Cc: xfs@xxxxxxxxxxx
> > > > Sent: Tuesday, March 12, 2013 2:07:01 PM
> > > > Subject: Re: 3.9-rc2 xfs panic
> > > > 
> > > > On Tue, Mar 12, 2013 at 12:32:28AM -0400, CAI Qian wrote:
> > > > > Just came across when running xfstests using 3.9-rc2 kernel on
> > > > > a
> > > > > power7
> > > > > box with addition of this patch which fixed a known issue,
> > > > > http://people.redhat.com/qcai/stable/01-fix-double-fetch-hlist.patch
> > > > > 
> > > > > The log shows it was happened around test case 370 with
> > > > > TEST_PARAM_BLKSIZE = 2048
> > > > 
> > > > That doesn't sound like xfstests. it only has 305 tests, and no
> > > > parameters like TEST_PARAM_BLKSIZE....
> > > Sorry, it is a typo, test case 270 not 370. TEST_PARAM_BLKSIZE was
> > > from an internal wrapper to be used to create new filessytem not
> > > from the
> > > original xfstests.
> > 
> > OK, so that means you're testing 2k filesystem block size on a 64k
> > page size machine?
> Looks like so. Would that be a problem?

It shouldn't be a problem, but nobody else is testing with that
config and so you could be seeing problems nobody sees.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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