From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten Date: Fri, 18 Jul 2008 00:06:00 +0200 Message-ID: <20080717220600.GA1701@elte.hu> References: <20080717214222.GA29449@elte.hu> <20080717.144504.96425101.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, penberg@cs.helsinki.fi, vegard.nossum@gmail.com, rjw@sisk.pl To: David Miller Return-path: Received: from mx3.mail.elte.hu ([157.181.1.138]:36815 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754236AbYGQWGV (ORCPT ); Thu, 17 Jul 2008 18:06:21 -0400 Content-Disposition: inline In-Reply-To: <20080717.144504.96425101.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: * David Miller wrote: > From: Ingo Molnar > Date: Thu, 17 Jul 2008 23:42:22 +0200 > > > > > A regression to v2.6.26: > > > > I started getting this skb-head corruption message today, on a T60 > > laptop with e1000: > > This is very unlikely to be added by us networking folks, no > networking merges have happened for the 2.6.27 merge window yet :-) yeah. That's why i observed: > > Perhaps SLUB debugging got smarter? and Cc:-ed SLUB folks. Could be a sleeper cell of bugs gone active ;-) Or could be SLUB (-debugging) breakage. Netconsole is pretty reliable on this box. (and the bootup continued just fine after this report) Just re-tried it, the bug is reliably repeatable. Will try a bisection run. Ingo