linux-kernel - Re: linux-next: slab shrinkers: BUG at mm/list

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Date:	Tue, 9 Jul 2013 21:57:29 +0400
From:	Glauber Costa <glommer@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Michal Hocko <mhocko@...e.cz>, Dave Chinner <david@...morbit.com>,
	linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: slab shrinkers: BUG at mm/list_lru.c:92

On Tue, Jul 09, 2013 at 10:50:32AM -0700, Andrew Morton wrote:
> On Tue, 9 Jul 2013 21:32:51 +0400 Glauber Costa <glommer@...il.com> wrote:
> 
> > > $ dmesg | grep "blocked for more than"
> > > [276962.652076] INFO: task xfs-data/sda9:930 blocked for more than 480 seconds.
> > > [276962.653097] INFO: task kworker/2:2:17823 blocked for more than 480 seconds.
> > > [276962.653940] INFO: task ld:14442 blocked for more than 480 seconds.
> > > [276962.654297] INFO: task ld:14962 blocked for more than 480 seconds.
> > > [277442.652123] INFO: task xfs-data/sda9:930 blocked for more than 480 seconds.
> > > [277442.653153] INFO: task kworker/2:2:17823 blocked for more than 480 seconds.
> > > [277442.653997] INFO: task ld:14442 blocked for more than 480 seconds.
> > > [277442.654353] INFO: task ld:14962 blocked for more than 480 seconds.
> > > [277922.652069] INFO: task xfs-data/sda9:930 blocked for more than 480 seconds.
> > > [277922.653089] INFO: task kworker/2:2:17823 blocked for more than 480 seconds.
> > > 
> > 
> > You seem to have switched to XFS. Dave posted a patch two days ago fixing some
> > missing conversions in the XFS side. AFAIK, Andrew hasn't yet picked the patch.
> 
> I can't find that patch.  Please resend?
> 
> There's also "list_lru: fix broken LRU_RETRY behaviour", which I
> assume we need?

Yes, we can either apply or stash that one - up to you.
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