Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756031Ab0GGOdm (ORCPT ); Wed, 7 Jul 2010 10:33:42 -0400 Received: from anguilla.debian.or.at ([86.59.21.37]:32799 "EHLO anguilla.debian.or.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755178Ab0GGOdk (ORCPT ); Wed, 7 Jul 2010 10:33:40 -0400 Date: Wed, 7 Jul 2010 16:33:39 +0200 From: Peter Palfrader To: Glauber Costa Cc: Greg KH , linux-kernel@vger.kernel.org, stable@kernel.org, stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Zachary Amsden , Jeremy Fitzhardinge , Avi Kivity , Marcelo Tosatti Subject: Re: [patch 134/149] x86, paravirt: Add a global synchronization point for pvclock Message-ID: <20100707143338.GK15122@anguilla.noreply.org> Mail-Followup-To: Peter Palfrader , Glauber Costa , Greg KH , linux-kernel@vger.kernel.org, stable@kernel.org, stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Zachary Amsden , Jeremy Fitzhardinge , Avi Kivity , Marcelo Tosatti References: <20100701175144.GA2116@kroah.com> <20100701173218.125822294@clark.site> <20100707124731.GJ15122@anguilla.noreply.org> <20100707135140.GI2707@mothafucka.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20100707135140.GI2707@mothafucka.localdomain> X-PGP: 1024D/94C09C7F 5B00 C96D 5D54 AEE1 206B AF84 DE7A AF6E 94C0 9C7F X-Request-PGP: http://www.palfrader.org/keys/94C09C7F.asc X-Accept-Language: de, en 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 Content-Length: 1385 Lines: 34 On Wed, 07 Jul 2010, Glauber Costa wrote: > > 2.6.32.16 fails to boot on my KVM domains using qemu-kvm 0.11.1. > > > > Bisecting between 2.6.32.14 which worked and .16 turned up this commit > > as the first culprit[0]. > > > > The host is still running 2.6.32.14 and has 8 cores on 2 CPUs. The > > single-cpu KVM domain hangs just after printing 'Write protecting the > > kernel read-only data: 9492k'[1]. On a successful boot this line would > > usually be followed by 'INIT: version 2.86 booting'. > > > > A 2.6.32.16 with this patch reverted boots fine. > > > > If there's any info you need please just ask. > if you boot with another clocksource, and then switch to kvmclock with the machine already > running, do you see anything strange or suspicious? Booting with various clocksource=xxx kernel parameters does not change the behaviour at all, i.e. the boot still hangs. Cheers, Peter -- | .''`. ** Debian GNU/Linux ** Peter Palfrader | : :' : The universal http://www.palfrader.org/ | `. `' Operating System | `- http://www.debian.org/ -- 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/