From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carsten Aulbert Subject: Re: kernel BUG at kernel/workqueue.c:291 Date: Tue, 03 Mar 2009 16:23:01 +0100 Message-ID: <49AD4B55.5060504@aei.mpg.de> References: <49A84376.6030800@aei.mpg.de> <49ABBA44.1060302@aei.mpg.de> <20090302232643.7c7ca284.akpm@linux-foundation.org> <1236093413.9631.58.camel@heimdal.trondhjem.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org To: Trond Myklebust Return-path: Received: from welcomes-you.com ([85.214.50.128]:57509 "EHLO smtp.welcomes-you.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758044AbZCCPXS (ORCPT ); Tue, 3 Mar 2009 10:23:18 -0500 In-Reply-To: <1236093413.9631.58.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: Hi Trond, Trond Myklebust schrieb: > struct rpc_task does admittedly share storage for the work queue and the > rpc wait queue links, but if that were to be causing the reported > corruption, then it would mean that an rpc_task is simultaneously on a > wait queue and trying to execute on a work queue. I have no history of > that ever having happened. Anything I might be able to give to you helping you to narrow it down somewhat? As written I suspect a certain type of user jobs, but since literally 1000s of these ran over the course of several days it might be hard to trigger this reliably again. Cheers Carsten