From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750790AbVLZV2I (ORCPT ); Mon, 26 Dec 2005 16:28:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750813AbVLZV2I (ORCPT ); Mon, 26 Dec 2005 16:28:08 -0500 Received: from smtp-out1.blueyonder.co.uk ([195.188.213.4]:5738 "EHLO smtp-out1.blueyonder.co.uk") by vger.kernel.org with ESMTP id S1750790AbVLZV2H (ORCPT ); Mon, 26 Dec 2005 16:28:07 -0500 Message-ID: <43B06063.8030909@blueyonder.co.uk> Date: Mon, 26 Dec 2005 21:28:03 +0000 From: Sid Boyce Reply-To: sboyce@blueyonder.co.uk Organization: blueyonder.co.uk User-Agent: Thunderbird 1.5 (X11/20051201) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: RE: [BUG]: Hard lockups continue with linux-2.6.15-rc1-rc7 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 26 Dec 2005 21:29:01.0671 (UTC) FILETIME=[63A92F70:01C60A63] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Tarkan Erimer wrote: > Hi all, > > I'm having hard lockups with all the RCs of linux-2.6.15. I, > previously, mentioned this with the subject "[BUG]: Software compiling > occasionlly hangs under 2.6.15-rc1/rc2 and 2.6.15-rc1-mm2" in the > list. I investigated a bit at found these interesting things. > > -- Always reproducable. To reproduce: > - in console 1, issueing "updatedb" > - in console 2, issueing "find / -name "blahblah" -print > - in console 3, issueing "emerge -uDp world" (BTW, I'm using Gentoo.) > - in console 4, X started. > - a few minutes later, system completely freezes. No Alt+SysRq+t > works. (Normally, it does) > > When the system freezes, there is nothing in logs. But hardly, I > captured an Alt+SysRq+t. A few seconds (15-20 seconds) before hang. I > attached this Alt+SysRq+t and lsmod output. Hope this helps to solve > this. > > PS: These problems never occured in 2.6.14.xx and downwards. > > Regards. Don't rule out hardware. This SuSE 10.0 x86 box worked without problems on kernels up to 2.6.15-rc6-git2, but I experienced strange apparent filesystem corruptions/compile failures running normally and hard lockups when running mythtv with 2.6.15-rc6-git6 and 2.6.15-rc7, while on the Mandriva 2006 x86 box and the SuSE x86_64 there were no problems. Until I found the suspect SDRAM, on some occasions I had to run reiserfsck before 2.6.15-rc6-git2 would boot again correctly after trying rc6-git6 or -rc7. Finally I got a corruption again with 2.6.15-rc7, replaced the SDRAM stick with the one taken out previously, booted up on 2.6.15-rc7 with no problems. I had run memtest some days earlier, but only for a couple of hours. (current uptime 1 day 1.04hrs). Regards Sid. -- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot Retired IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks