Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756153Ab0GMWBI (ORCPT ); Tue, 13 Jul 2010 18:01:08 -0400 Received: from terminus.zytor.com ([198.137.202.10]:40136 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751882Ab0GMWBG (ORCPT ); Tue, 13 Jul 2010 18:01:06 -0400 Message-ID: <4C3CE210.2030902@zytor.com> Date: Tue, 13 Jul 2010 15:00:48 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100621 Fedora/3.0.5-1.fc13 Thunderbird/3.0.5 MIME-Version: 1.0 To: Yinghai Lu CC: Ingo Molnar , Thomas Gleixner , Suresh Siddha , "linux-kernel@vger.kernel.org" Subject: Re: tip/master broken with x2apic and kexec References: <4C3BD6AA.3070908@kernel.org> In-Reply-To: <4C3BD6AA.3070908@kernel.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1032 Lines: 29 On 07/12/2010 07:59 PM, Yinghai Lu wrote: > tip/master: > system1: BIOS enabled x2apic, first kernel boot well, and when kexec second kernel will cause system instant reboot. > > system2: BIOS not enable x2apic, first kernel boot well and enable x2apic, and kexec second kernel well. but when kexec third kernel will case system instant reboot. > > linus' tree is ok. > > but for system2 if boot with nox2apic ,intr-remaping off, iommu off, the kexec loop test will pass. > > the problem looks start in recent two or three weeks. > > Any idea? > > bisecting will take a while, because the system post take a while everytime. > > Thanks > > Yinghai Lu OK, I found the bug... if you could test out the patch which will be sent out shortly I would very much appreciate it. -hpa -- 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/