From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754059AbZBPUOJ (ORCPT ); Mon, 16 Feb 2009 15:14:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751628AbZBPUNz (ORCPT ); Mon, 16 Feb 2009 15:13:55 -0500 Received: from rhlx01.hs-esslingen.de ([129.143.116.10]:58322 "EHLO rhlx01.hs-esslingen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751304AbZBPUNy (ORCPT ); Mon, 16 Feb 2009 15:13:54 -0500 X-Greylist: delayed 429 seconds by postgrey-1.27 at vger.kernel.org; Mon, 16 Feb 2009 15:13:54 EST Date: Mon, 16 Feb 2009 21:06:43 +0100 From: Andreas Mohr To: LKML Cc: linux-ide@vger.kernel.org, Tejun Heo Subject: [BUG] 2.6.29-rc2-git1 to -rc5: libata lockup on boot, LED solid, 100% CPU Message-ID: <20090216200643.GA2393@rhlx01.hs-esslingen.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Priority: none User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello all, My Inspiron 8000 ICH2 (i810) P3/700 UP has a hard time booting 2.6.29 things: [loaded init, shell stuff] ... ata1.00: configured for UDMA/100 ata1.01: configured for UDMA/33 ata1: EH complete ... Uniform CD-ROM driver Revision: 3.20 [LAST LINE, FULL STOP] ---> hangs with IDE LED solidly on! <--- NOTE: kernel did NOT hang when accidentally running rc2-git1 w/o any modules loaded! (IOW, probably a module-related hang) disabling sr_mod.ko will make a boot proceed a tiny bit, then hang anyway Could be mutex deadlock (CPU hot, 100%?) no log errors whatsoever latest known working: .28-rc6 (admittedly somewhat old; DOES work currently) earliest known buggy: -rc2-git1, -rc4 also, -rc5 also no SysRq available (notebook keys: no workey, /proc/sysrq obviously not available either) Should I test 2.6.28.5? Every build will take two hours though... Not ATA-SFF 32bit bug problem, right? (already committed?) http://marc.info/?l=linux-kernel&m=123254501314058&w=2 CONFIG_LOCK_STAT is NOT set/guilty here http://lkml.org/lkml/2009/2/16/5 Will try disabling CD-ROM drives in BIOS or so. Any other promising ideas/patches available? libata logging? mutex logging? CC'd Tejun since he's been a miracle to work with recently concerning all things ATA ;) On a related note, -rc4 works nicely on my Aspire One, despite me betting that it would end up with at least two new major issues again... (note: plus full UDMA/66 after resume! - Tejun) -rc5 on a P4HT blue skies, too... Maybe kernel quality doesn't actually degrade after all... Thanks, Andreas Mohr