From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail6.bemta7.messagelabs.com (mail6.bemta7.messagelabs.com [216.82.255.55]) by kanga.kvack.org (Postfix) with ESMTP id 038856B004F for ; Sun, 4 Dec 2011 12:32:04 -0500 (EST) Received: by dakl33 with SMTP id l33so1518490dak.14 for ; Sun, 04 Dec 2011 09:32:01 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20111204010200.GA1530@x4.trippels.de> References: <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> <20111203122900.GA1617@x4.trippels.de> <20111204010200.GA1530@x4.trippels.de> Date: Sun, 4 Dec 2011 12:32:00 -0500 Message-ID: Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 From: Jerome Glisse Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linux-mm@kvack.org List-ID: To: Markus Trippelsdorf Cc: Dave Airlie , 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 On Sat, Dec 3, 2011 at 8:02 PM, Markus Trippelsdorf wrote: > On 2011.12.03 at 14:31 -0500, Jerome Glisse wrote: >> On Sat, Dec 3, 2011 at 7:29 AM, Markus Trippelsdorf >> wrote: >> > 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 >> >> Can you add radeon.no_wb=1 to your kexec kernel paramater an see if >> you can reproduce. > > No, I cannot reproduce the issue with radeon.no_wb=1. (I write this > after 700 successful kexec iterations...) > Ok so it's GPU writeback will do a patch on monday. Cheers, Jerome -- 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