From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266532AbUHOS3v (ORCPT ); Sun, 15 Aug 2004 14:29:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266838AbUHOS3v (ORCPT ); Sun, 15 Aug 2004 14:29:51 -0400 Received: from nl-ams-slo-l4-01-pip-3.chellonetwork.com ([213.46.243.17]:52252 "EHLO amsfep12-int.chello.nl") by vger.kernel.org with ESMTP id S266532AbUHOS3t (ORCPT ); Sun, 15 Aug 2004 14:29:49 -0400 Subject: Re: [patch] voluntary-preempt-2.6.8.1-P0 From: Peter Zijlstra To: Lee Revell Cc: Ingo Molnar , LKML , Felipe Alfaro Solana , Florian Schmidt In-Reply-To: <1092591223.1118.27.camel@krustophenia.net> References: <20040726204720.GA26561@elte.hu> <20040729222657.GA10449@elte.hu> <20040801193043.GA20277@elte.hu> <20040809104649.GA13299@elte.hu> <20040810132654.GA28915@elte.hu> <20040812235116.GA27838@elte.hu> <1092382825.3450.19.camel@mindpipe> <20040813104817.GI8135@elte.hu> <1092432929.3450.78.camel@mindpipe> <20040814072009.GA6535@elte.hu> <20040815115649.GA26259@elte.hu> <1092578502.6543.4.camel@twins> <1092591223.1118.27.camel@krustophenia.net> Content-Type: text/plain Date: Sun, 15 Aug 2004 20:29:38 +0200 Message-Id: <1092594578.6543.10.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 1.5.91 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2004-08-15 at 13:33 -0400, Lee Revell wrote: > On Sun, 2004-08-15 at 10:01, Peter Zijlstra wrote: > > > It still locks up hard for me when voluntary-preempt=3, however it does > > finish the boot; dmesg attached. The lockup occurs several minutes into > > use; usually by by the time I've started X, launched evolution and > > selected my first imap folder the machine's dead. > > > > If you need more information or want me to try some patches, just let me > > know. > > These look a bit worrisome: > > Aug 15 15:24:11 twins kernel: Total of 2 processors activated (5537.79 BogoMIPS). > Aug 15 15:24:11 twins kernel: WARNING: This combination of AMD processors is not suitable for SMP. > Aug 15 15:24:11 twins kernel: ENABLING IO-APIC IRQs > > Aug 15 15:24:11 twins kernel: I/O APIC: AMD Errata #22 may be present. In the event of instability try > Aug 15 15:24:11 twins kernel: : booting with the "noapic" option. > Yeah, true. I run with 2 Thunderbirds, not Athlon MPs; AMD does not like that, the CPUs don't share that inclination. As for the AMD Errata #22, all other kernels run rock solid without noapic, so I don't see why these should differ. I did try noapic though, not on P0 but on one of the later Os. -- Peter Zijlstra