From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754939Ab1BINSJ (ORCPT ); Wed, 9 Feb 2011 08:18:09 -0500 Received: from vpn.id2.novell.com ([195.33.99.129]:57365 "EHLO vpn.id2.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752835Ab1BINSH convert rfc822-to-8bit (ORCPT ); Wed, 9 Feb 2011 08:18:07 -0500 Message-Id: <4D52A241020000780003107A@vpn.id2.novell.com> X-Mailer: Novell GroupWise Internet Agent 8.0.1 Date: Wed, 09 Feb 2011 13:18:41 +0000 From: "Jan Beulich" To: "Jiri Slaby" Cc: "Tim Deegan" , "Jeremy Fitzhardinge" , , "Linus Torvalds" , Subject: Re: [PATCH] fix jiffy calculations in calibrate_delay_direct to handle overflow References: <4D525EF00200007800030F0F@vpn.id2.novell.com> <4D525CA8.60604@suse.cz> <4D526FF40200007800030FEF@vpn.id2.novell.com> <4D52641E.9020001@suse.cz> In-Reply-To: <4D52641E.9020001@suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>> On 09.02.11 at 10:53, Jiri Slaby wrote: > On 02/09/2011 10:44 AM, Jan Beulich wrote: >>>>> On 09.02.11 at 10:21, Jiri Slaby wrote: >>> On 02/09/2011 09:31 AM, Jan Beulich wrote: >>>> Fixes a hang when booting as dom0 under Xen, when jiffies can be >>>> quite large by the time the kernel init gets this far. >>> >>> As I wrote this might happen if the boot till this point takes ~ 5 >>> minutes because we start at -5 minutes. >>> >>> That said, is this a candidate for stable? (If so, please CC stable.) >> >> Honestly, I'm not certain (given that mainline Xen Dom0 support >> is still only in its beginnings). > > What about other VMs? If I run few non-kvm qemu VMs (kvm presets lpj) on > a busy dual-core machine, this will be a problem too, right? Yes, quite possible indeed. Jan