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Date: Sat, 3 Dec 2011 12:20:22 +0000 From: Dave Airlie <airlied@...il.com> To: Markus Trippelsdorf <markus@...ppelsdorf.de> 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 >> > > > > 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? Jerome, might be worth checking the ordering for when bus master gets enabled or if we turn off the writeback producers before writeback is enabled. Dave. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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