From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422723AbXCWIp5 (ORCPT ); Fri, 23 Mar 2007 04:45:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422696AbXCWIp5 (ORCPT ); Fri, 23 Mar 2007 04:45:57 -0400 Received: from hellhawk.shadowen.org ([80.68.90.175]:3371 "EHLO hellhawk.shadowen.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422723AbXCWIp4 (ORCPT ); Fri, 23 Mar 2007 04:45:56 -0400 Message-ID: <460393A3.60502@shadowen.org> Date: Fri, 23 Mar 2007 08:45:23 +0000 From: Andy Whitcroft User-Agent: Icedove 1.5.0.9 (X11/20061220) MIME-Version: 1.0 To: Con Kolivas CC: Andrew Morton , linux-kernel@vger.kernel.org, Steve Fox , "Martin J. Bligh" Subject: Re: 2.6.21-rc4-mm1 References: <20070319205623.299d0378.akpm@linux-foundation.org> <4602B7D3.4030108@shadowen.org> <4602C83B.20608@shadowen.org> <200703231718.20647.kernel@kolivas.org> In-Reply-To: <200703231718.20647.kernel@kolivas.org> X-Enigmail-Version: 0.94.2.0 OpenPGP: url=http://www.shadowen.org/~apw/public-key Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Con Kolivas wrote: > 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. Tests queued with your rdsl-0.33 patch (I am assuming its in there). Will let you know how it looks. -apw