linux-kernel - Re: edac_core: crashes on shutdown

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Message-ID: <20101202170756.GF27263@aftab>
Date:	Thu, 2 Dec 2010 18:07:56 +0100
From:	Borislav Petkov <bp@...64.org>
To:	Florian Mickler <florian@...kler.org>
Cc:	Tobias Karnat <tobias.karnat@...glemail.com>,
	Borislav Petkov <bp@...en8.de>,
	"linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: edac_core: crashes on shutdown

On Thu, Dec 02, 2010 at 12:02:52PM -0500, Florian Mickler wrote:
> On Thu, 02 Dec 2010 17:21:12 +0100
> Tobias Karnat <tobias.karnat@...glemail.com> wrote:
> 
> > Am Donnerstag, den 02.12.2010, 16:21 +0100 schrieb Borislav Petkov:
> > > Well, thanks for the photos. I don't have an idea what might cause this
> > > workqueue corruption I'm seeing, all reg/unreg paths look ok. The only
> > > change that came in between .35 and .36.1 I can think of being relevant
> > > is 00740c58541b6087d78418cebca1fcb86dc6077d. You could try backing that
> > > one out to see whether it fixes the issue.
> > 
> > Yes, reverting this fixed the issue!
> > 
> > But why?
> > 
> > -Tobias
> > 
> > 
> 
> It doesnt work because op_state is set to OP_OFFLINE in edac_mc_del_mc
> before calling edac_mc_workq_teardown. Or am I seeing things?

Good observation Florian, see my other mail I just sent.

-- 
Regards/Gruss,
Boris.

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