From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422730AbWGNTnb (ORCPT ); Fri, 14 Jul 2006 15:43:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422732AbWGNTnb (ORCPT ); Fri, 14 Jul 2006 15:43:31 -0400 Received: from e3.ny.us.ibm.com ([32.97.182.143]:6621 "EHLO e3.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1422730AbWGNTna (ORCPT ); Fri, 14 Jul 2006 15:43:30 -0400 Subject: i686 hang on boot in userspace From: john stultz To: Uwe Bugla Cc: Roman Zippel , Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org, akpm@osdl.org, Peter Zijlstra In-Reply-To: <20060714150418.120680@gmx.net> References: <20060714150418.120680@gmx.net> Content-Type: text/plain; charset=UTF-8 Date: Fri, 14 Jul 2006 12:43:22 -0700 Message-Id: <1152906202.5365.12.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2006-07-14 at 17:04 +0200, Uwe Bugla wrote: > Hi everybody, > first of all thanks to the explanatory hints how a magic Sysrq key works – I've learned a lot. > > I first pressed ALT + PrintScreen + P, then ALT + PrintScreen + T. > To avoid wordwrapping or other unwanted effects please see the resulting kern.log as outline attachment. > > Could someone please explain to me what's behind that cryptic code? > Hope I could help - still need a booting kernel, and I think I ain´t the only one. Hmmm... I don't see anything that sticks out in the sysrq info (well, not sure if the do_wp_page() is just trace junk or not - CC'ed Peter just in case). Maybe this is related to the expand files OOM thing that Martin saw? If you boot w/ init=/bin/bash do you also see the hang? If you execute "date" a few times, does it seem to keep proper track of time? Also could you enable softlockup detection? (CONFIG_DETECT_SOFTLOCKUP) Which you can find under Kernel debugging in the make menuconfig. thanks -john