From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail6.bemta8.messagelabs.com (mail6.bemta8.messagelabs.com [216.82.243.55]) by kanga.kvack.org (Postfix) with ESMTP id 4AE126B00BB for ; Tue, 22 Nov 2011 19:18:37 -0500 (EST) Message-ID: <1322007501.14573.15.camel@pasglop> Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 From: Benjamin Herrenschmidt Date: Wed, 23 Nov 2011 11:18:21 +1100 In-Reply-To: References: <20111121131531.GA1679@x4.trippels.de> <1321884966.10470.2.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <20111121153621.GA1678@x4.trippels.de> <1321890510.10470.11.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <20111121161036.GA1679@x4.trippels.de> <1321894353.10470.19.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <1321895706.10470.21.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <20111121173556.GA1673@x4.trippels.de> <1321900743.10470.31.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <20111121185215.GA1673@x4.trippels.de> <20111121195113.GA1678@x4.trippels.de> <1321907275.13860.12.camel@pasglop> <1321948113.27077.24.camel@edumazet-laptop> <1321999085.14573.2.camel@pasglop> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Christian Kujau Cc: Eric Dumazet , Christoph Lameter , Markus Trippelsdorf , "Alex,Shi" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , Pekka Enberg , Matt Mackall , "netdev@vger.kernel.org" , Tejun Heo On Tue, 2011-11-22 at 15:12 -0800, Christian Kujau wrote: > On Wed, 23 Nov 2011 at 08:58, Benjamin Herrenschmidt wrote: > > > > --- linux-2.6.orig/mm/slub.c 2011-11-21 21:15:41.575673204 -0600 > > > > +++ linux-2.6/mm/slub.c 2011-11-21 21:16:33.442336849 -0600 > [...] > > > > - } while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); > > > > + } while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); > > > > Christian, can you try it see if that helps in your case ? > > Only this one-liner from Christoph or any of the other patches that were > proposed in this thread? > > Will test...but this might take a while... I'd say only this one liner for now, just don't do slabinfo :-) I just want to see whether your network + heavy IO load problem goes away with that one patch. Thanks ! Cheers, Ben. -- 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