From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id 2E22F6B0069 for ; Mon, 21 Nov 2011 03:24:50 -0500 (EST) Date: Mon, 21 Nov 2011 09:24:45 +0100 From: Markus Trippelsdorf Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 Message-ID: <20111121082445.GD1625@x4.trippels.de> References: <20111118072519.GA1615@x4.trippels.de> <20111118075521.GB1615@x4.trippels.de> <1321605837.30341.551.camel@debian> <20111118085436.GC1615@x4.trippels.de> <20111118120201.GA1642@x4.trippels.de> <1321836285.30341.554.camel@debian> <20111121080554.GB1625@x4.trippels.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20111121080554.GB1625@x4.trippels.de> Sender: owner-linux-mm@kvack.org List-ID: To: "Alex,Shi" Cc: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , Christoph Lameter , Pekka Enberg , Matt Mackall , "netdev@vger.kernel.org" , Eric Dumazet On 2011.11.21 at 09:05 +0100, Markus Trippelsdorf wrote: > On 2011.11.21 at 08:44 +0800, Alex,Shi wrote: > > On Fri, 2011-11-18 at 20:02 +0800, Markus Trippelsdorf wrote: > > > On 2011.11.18 at 09:54 +0100, Markus Trippelsdorf wrote: > > > > On 2011.11.18 at 16:43 +0800, Alex,Shi wrote: > > > > > > > > > > > > > > The dirty flag comes from a bunch of unrelated xfs patches from Christoph, that > > > > > > > I'm testing right now. > > > > > > > > > > Where is the xfs patchset? I am wondering if it is due to slub code. > > > > > > I begin to wonder if this might be the result of a compiler bug. > > > The kernel in question was compiled with gcc version 4.7.0 20111117. And > > > there was commit to the gcc repository today that looks suspicious: > > > http://gcc.gnu.org/viewcvs?view=revision&revision=181466 > > > > > > > Tell us if it is still there and you can reproduce it. > > Hm, just noticed the "3.2.0-rc1 panic on PowerPC" thread: > http://thread.gmane.org/gmane.linux.kernel/1215584 > > The backtraces look suspiciously similar to mine. So everything points to commit 87fb4b7b533: "net: more accurate skb truesize" Can you take a look Eric? -- Markus -- 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