Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932157AbXHLI3a (ORCPT ); Sun, 12 Aug 2007 04:29:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757450AbXHLI3T (ORCPT ); Sun, 12 Aug 2007 04:29:19 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:55929 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756850AbXHLI3R convert rfc822-to-8bit (ORCPT ); Sun, 12 Aug 2007 04:29:17 -0400 Date: Sun, 12 Aug 2007 01:28:26 -0700 From: Andrew Morton To: =?ISO-8859-1?B?IklscG8gSuRydmluZW4i?= Cc: LKML , linux-acpi@vger.kernel.org, john stultz , Thomas Gleixner Subject: Re: v2.6.23-rc2 locks up during boot (without acpi=off) Message-Id: <20070812012826.cfc9f5bb.akpm@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed 2.4.1 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1727 Lines: 33 On Sat, 11 Aug 2007 15:39:30 +0300 (EEST) "Ilpo J?rvinen" wrote: > I noticed that v2.6.23-rc1 locks up during boot, same thing happens now > with the latest linus' tree (+net-2.6.24 and tcp-2.6 tree stuff on top > of it; in -rc1 test they weren't though). The exact location of hang > varies a bit though. No OOPS, does not respond to sysrq or anything else > besides reset. Last known bootable one is something like 2.6.22-rc4 > (I usually run 2.6.21.5 on this machine, haven't tried any 2.6.22 on > this after those rcs). Problem seems to start after this line: > > Time: acpi_pm clocksource has been installed. > > ...the power led starts blinking (not periodic cycle but more or less > varying on-off cycle, never seen that led blink before at all, didn't know > that one can make it blink :-)) and the machine gets consideably slower > too. Never have it been able to complete booting all they way up to login > prompt before lock up. > > Tried with acpi=off, boots just fine (dmesg comes from it). I can take A hang a short-but-variable period after a clocksource was installed: probably means that the kernel wedged on the first clock interrupt. I'd expect 2.6.22 to work OK. It's a little unexpected that the bug was added after 2.6.22: a number of these reports have narrowed down to the patchset which added dynticks and clockevents, but that was already in 2.6.22. It'd be great if you could run a git bisection search please. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/