From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 5343C6B004F for ; Sat, 3 Dec 2011 07:20:25 -0500 (EST) Received: by yenq10 with SMTP id q10so4174576yen.14 for ; Sat, 03 Dec 2011 04:20:23 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20111203092845.GA1520@x4.trippels.de> References: <20111121080554.GB1625@x4.trippels.de> <20111121082445.GD1625@x4.trippels.de> <1321866988.2552.10.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <20111121131531.GA1679@x4.trippels.de> <1321884966.10470.2.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <20111121153621.GA1678@x4.trippels.de> <20111123160353.GA1673@x4.trippels.de> <20111124085040.GA1677@x4.trippels.de> <20111202230412.GB12057@homer.localdomain> <20111203092845.GA1520@x4.trippels.de> Date: Sat, 3 Dec 2011 12:20:22 +0000 Message-ID: Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 From: Dave Airlie Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linux-mm@kvack.org List-ID: To: Markus Trippelsdorf Cc: Jerome Glisse , Christoph Lameter , "Alex, Shi" , Eric Dumazet , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , dri-devel@lists.freedesktop.org, Pekka Enberg , "linux-mm@kvack.org" , Matt Mackall , tj@kernel.org, Alex Deucher >> > > > > 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org