Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753722Ab1EDMiM (ORCPT ); Wed, 4 May 2011 08:38:12 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:50875 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751699Ab1EDMiL (ORCPT ); Wed, 4 May 2011 08:38:11 -0400 Date: Wed, 4 May 2011 14:37:53 +0200 From: Ingo Molnar To: Linus Torvalds , Jens Axboe , Andrew Morton , Pekka Enberg Cc: werner , "H. Peter Anvin" , Thomas Gleixner , Linux Kernel Mailing List Subject: Re: [block IO crash] Re: 2.6.39-rc5-git2 boot crashs Message-ID: <20110504123753.GA8646@elte.hu> References: <20110503190822.GA20520@elte.hu> <20110504083559.GB25724@elte.hu> <20110504101327.GA847@elte.hu> <20110504104140.GA5277@elte.hu> <20110504104520.GA5502@elte.hu> <20110504110650.GA6376@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110504110650.GA6376@elte.hu> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 874 Lines: 34 * Ingo Molnar wrote: > > * Ingo Molnar wrote: > > > diff --git a/mm/slub.c b/mm/slub.c > > index 94d2a33..27bc3be 100644 > > --- a/mm/slub.c > > +++ b/mm/slub.c > > @@ -30,6 +30,8 @@ > > > > #include > > > > +#undef CONFIG_CMPXCHG_LOCAL > > + > > /* > > * Lock order: > > * 1. slab_lock(page) > > This seems rock solid after half an hour of testing. I'll keep it running > longer, i still have no good data for how frequently the crashes are occuring. It's still rock solid after 2 hours: neither crashes nor IO/IRQ timeouts are occuring. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/