netdev - Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413

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Message-ID: <20111203122900.GA1617@x4.trippels.de>
Date:	Sat, 3 Dec 2011 13:29:00 +0100
From:	Markus Trippelsdorf <markus@...ppelsdorf.de>
To:	Dave Airlie <airlied@...il.com>
Cc:	Jerome Glisse <j.glisse@...il.com>,
	Christoph Lameter <cl@...ux.com>,
	"Alex, Shi" <alex.shi@...el.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org, Pekka Enberg <penberg@...nel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Matt Mackall <mpm@...enic.com>, tj@...nel.org,
	Alex Deucher <alexander.deucher@....com>
Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413

On 2011.12.03 at 12:20 +0000, Dave Airlie wrote:
> >> > > > > FIX idr_layer_cache: Marking all objects used
> >> > > >
> >> > > > Yesterday I couldn't reproduce the issue at all. But today I've hit
> >> > > > exactly the same spot again. (CCing the drm list)
> 
> If I had to guess it looks like 0 is getting written back to some
> random page by the GPU maybe, it could be that the GPU is in some half
> setup state at boot or on a reboot does it happen from a cold boot or
> just warm boot or kexec?

Only happened with kexec thus far. Cold boot seems to be fine.

-- 
Markus
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