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Re: deadlocked xfs

To: Eric Sandeen <sandeen@xxxxxxxxxxx>
Subject: Re: deadlocked xfs
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Fri, 11 Jul 2008 14:27:32 +1000
Cc: Timothy Shimmin <tes@xxxxxxx>, markgw@xxxxxxx, xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <4876DF17.9090904@xxxxxxxxxxx>
Mail-followup-to: Eric Sandeen <sandeen@xxxxxxxxxxx>, Timothy Shimmin <tes@xxxxxxx>, markgw@xxxxxxx, xfs-oss <xfs@xxxxxxxxxxx>
References: <4876C667.608@xxxxxxxxxxx> <4876C9EB.7060601@xxxxxxx> <4876D1C3.4000006@xxxxxxx> <20080711040447.GC11558@disturbed> <4876DD2D.2010903@xxxxxxxxxxx> <4876DDE3.7020801@xxxxxxx> <4876DF17.9090904@xxxxxxxxxxx>
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User-agent: Mutt/1.5.17+20080114 (2008-01-14)
On Thu, Jul 10, 2008 at 11:18:31PM -0500, Eric Sandeen wrote:
> Timothy Shimmin wrote:
> > Eric Sandeen wrote:
> >> Dave Chinner wrote:
> >>
> >>> Patch for you to test, Eric, below.
> >>>
> >>> (I haven't been able to test it because UML panics on boot right now.
> >>> I need to hoover in the unit-at-atime build patch that Jeff Dike
> >>> posted this morning)
> >>>
> >>> Cheers,
> >>>
> >>> Dave.
> >> Dave, you frighten me.
> >>
> >> Testing now, will let it run a while.
> >>
> > Excellent.
> > 
> > And it happened pretty reliably before, right?
> 
> It did, yep, though sometimes took a while.
> 
> But, w/ the patch it actually deadlocked really quickly (< 2000 inodes
> written)

Yeah, inverted the if/else logic, I think. Like I
said, untested.

I'll send out an updated patch as soon as I get uml running
again.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx


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