From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751322AbXCWGOD (ORCPT ); Fri, 23 Mar 2007 02:14:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933764AbXCWGOB (ORCPT ); Fri, 23 Mar 2007 02:14:01 -0400 Received: from mail31.syd.optusnet.com.au ([211.29.132.102]:34047 "EHLO mail31.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751771AbXCWGOA (ORCPT ); Fri, 23 Mar 2007 02:14:00 -0400 From: Con Kolivas To: Andy Whitcroft Subject: Re: 2.6.21-rc4-mm1 Date: Fri, 23 Mar 2007 17:18:20 +1100 User-Agent: KMail/1.9.5 Cc: Andrew Morton , linux-kernel@vger.kernel.org, Steve Fox , "Martin J. Bligh" References: <20070319205623.299d0378.akpm@linux-foundation.org> <4602B7D3.4030108@shadowen.org> <4602C83B.20608@shadowen.org> In-Reply-To: <4602C83B.20608@shadowen.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200703231718.20647.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 23 March 2007 05:17, Andy Whitcroft wrote: > Ok, I have yet a third x86_64 machine is is blowing up with the latest > 2.6.21-rc4-mm1+hotfixes+rsdl-0.32 but working with > 2.6.21-rc4-mm1+hotfixes-RSDL. I have results on various hotfix levels > so I have just fired off a set of tests across the affected machines on > that latest hotfix stack plus the RSDL backout and the results should be > in in the next hour or two. > > I think there is a strong correlation between RSDL and these hangs. Any > suggestions as to the next step. Found a nasty in requeue_task + if (list_empty(old_array->queue + old_prio)) + __clear_bit(old_prio, p->array->prio_bitmap); see anything wrong there? I do :P I'll queue that up with the other changes pending and hopefully that will fix your bug. -- -ck