From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932501AbXCVJtS (ORCPT ); Thu, 22 Mar 2007 05:49:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932690AbXCVJtS (ORCPT ); Thu, 22 Mar 2007 05:49:18 -0400 Received: from hellhawk.shadowen.org ([80.68.90.175]:2432 "EHLO hellhawk.shadowen.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932501AbXCVJtR (ORCPT ); Thu, 22 Mar 2007 05:49:17 -0400 Message-ID: <46025100.7060103@shadowen.org> Date: Thu, 22 Mar 2007 09:48:48 +0000 From: Andy Whitcroft User-Agent: Icedove 1.5.0.9 (X11/20061220) MIME-Version: 1.0 To: Andy Whitcroft CC: Andrew Morton , linux-kernel@vger.kernel.org, Steve Fox , "Martin J. Bligh" , Con Kolivas Subject: Re: 2.6.21-rc4-mm1 References: <20070319205623.299d0378.akpm@linux-foundation.org> <45FFAD50.8060108@shadowen.org> <4602413C.6000504@shadowen.org> In-Reply-To: <4602413C.6000504@shadowen.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 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-rc4/2.6.21-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.patch 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? -apw