linux-kernel - Re: 2.6.28-mmotm1230 - BUG during 'shutdown -h'

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Date:	Mon, 5 Jan 2009 16:36:12 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Valdis.Kletnieks@...edu
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.28-mmotm1230 - BUG during 'shutdown -h'

On Sunday 04 January 2009 03:06:31 Valdis.Kletnieks@...edu wrote:
> On Sat, 03 Jan 2009 17:43:35 +1030, Rusty Russell said:
> > On Friday 02 January 2009 23:22:18 Valdis.Kletnieks@...edu wrote:
> > > 100% repeatable.  I haven't had a chance to bisect and track this down yet,
> > > though most of the obvious suspects are in either origin.patch or linux-next.patch
> > > so a bisect of -mmotm probably won't tell us much.
> > 
> > kernel/workqueue.c: In function 'wq_cpu_map':
> > kernel/workqueue.c:94: warning: pointer type mismatch in conditional expression
> > 
> > That's a problem for a start.  Looks like a merge bug.  Does removing the &
> > from in front of cpu_populated_map help?
> 
> Fixing that did fix the compiler warning.  However, it didn't fix the
> blowup during shutdown.  I'll dig into it more later this weekend.

Linus has just merged the cpumask tree, so if it did cause this problem,
Linus' tree should show it.

Cheers,
Rusty.
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