linux-kernel - Re: [slub] WARNING: CPU: 1 PID: 1 at mm/slub.c:992 deactivate

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Message-ID: <alpine.DEB.2.02.1402051123520.5616@chino.kir.corp.google.com>
Date:	Wed, 5 Feb 2014 11:25:35 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Fengguang Wu <fengguang.wu@...el.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Pekka Enberg <penberg@...nel.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [slub] WARNING: CPU: 1 PID: 1 at mm/slub.c:992
 deactivate_slab()

On Wed, 5 Feb 2014, Fengguang Wu wrote:

> > I think this is the inlined add_full() and should be fixed with 
> > http://marc.info/?l=linux-kernel&m=139147105027693 that has been added to 
> > the -mm tree and should now be in next.  Is this patch included for this 
> > kernel?
> 
> Hi David,
> 
> According to the bisect log, linux-next 20140204 is bad, but it does
> not yet include your fix.
> 
> git bisect  bad 38dbfb59d1175ef458d006556061adeaa8751b72  # 23:16      0-      2  Linus 3.14-rc1
> git bisect  bad cdd263faccc2184e685573968dae5dd34758e322  # 23:34      1-      3  Add linux-next specific files for 20140204
> 

Ah, that's because the patch didn't go through Pekka's slab tree but went 
into -mm instead so we have to wait for another -mm.  However, the traces 
from linux-next-20140204 that you provided indicate it's the same problem 
and should be fixed with that patch, so let's wait for another mmotm to be 
released.
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