From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934015AbXCVKEp (ORCPT ); Thu, 22 Mar 2007 06:04:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933913AbXCVKEo (ORCPT ); Thu, 22 Mar 2007 06:04:44 -0400 Received: from mail23.syd.optusnet.com.au ([211.29.133.164]:41509 "EHLO mail23.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030342AbXCVKEn (ORCPT ); Thu, 22 Mar 2007 06:04:43 -0400 From: Con Kolivas To: Andy Whitcroft Subject: Re: 2.6.21-rc4-mm1 Date: Thu, 22 Mar 2007 21:04:06 +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> <4602413C.6000504@shadowen.org> <46025100.7060103@shadowen.org> In-Reply-To: <46025100.7060103@shadowen.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200703222104.06507.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 22 March 2007 20:48, Andy Whitcroft wrote: > Andy Whitcroft wrote: > > Andy Whitcroft wrote: > >> Andrew Morton wrote: > >>> Temporarily at > >>> > >>> http://userweb.kernel.org/~akpm/2.6.21-rc4-mm1/ > >>> > >>> Will appear later at > >>> > >>> > >>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc > >>>4/2.6.21-rc4-mm1/ > >> > >> [All of the below is from the pre hot-fix runs. The very few results > >> which are in for the hot-fix runs seem worse if anything. :( All > >> results should be out on TKO.] > >> > >>> - Restored the RSDL CPU scheduler (a new version thereof) > >> > >> Unsure if the above is the culprit but there seems to be a smattering of > >> BUG's in kernbench from the schedular on several systems, and panics > >> which do not fully dump out. > >> > >> elm3b239 is about 2/4 kernbench being the test in progress when we > >> blammo in both failed tests, elm3b234 doesn't boot at all. > > > > Well I have one result through for backing RSDL out on elm3b239 and that > > does indeed seem to give us a successful boot and test. peterz has > > pointed me to an incremental patch from Con which I'll push through > > testing and see if that sorts it out. > > Ok, tested the patch below on top of 2.6.21-rc4-mm1 and this seems to > fix the problem: > > http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc4-mm1-rsdl-0.32.p >atch > > Hard to tell from that patch whether it will be fixed in the changes > already committed to the next -mm. > > Its possible that it may be fixed by the following patch: > > sched-rsdl-improvements.patch > > Which has the following slipped in at the end of the changelog: > > A tiny change checking for MAX_PRIO in normal_prio() > may prevent oopses on bootup on large SMP due to > forking off the idle task. > > Con, are all the changes in the 0.32 patch above with akpm? Yes he's queued everything in that patch you tested for the next -mm. Thanks very much for testing it. -- -ck