Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754688Ab2BLERp (ORCPT ); Sat, 11 Feb 2012 23:17:45 -0500 Received: from mail-gy0-f174.google.com ([209.85.160.174]:44035 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751603Ab2BLERn convert rfc822-to-8bit (ORCPT ); Sat, 11 Feb 2012 23:17:43 -0500 MIME-Version: 1.0 In-Reply-To: References: Date: Sat, 11 Feb 2012 20:17:43 -0800 X-Google-Sender-Auth: rBJIYZq7sD-zyykW7mlV7M0PA88 Message-ID: Subject: Re: [tip:x86/debug] x86/kdump: No need to disable ioapic/ lapic in crash path From: Yinghai Lu To: "Eric W. Biederman" Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, hpa@zytor.com, torvalds@linux-foundation.org, kexec@lists.infradead.org, vgoyal@redhat.com, akpm@linux-foundation.org, tglx@linutronix.de, dzickus@redhat.com, mingo@elte.hu, linux-tip-commits@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 655 Lines: 18 On Sat, Feb 11, 2012 at 7:13 PM, Eric W. Biederman wrote: > Yinghai Lu writes: >> After reverting this commit, kdump is working again. >> >> So assume you need to drop this patch. > > It sounds like there is a bug in ioapic initialization in the context of > VT-d. ?Where do you fail? > before get debug print out from second kernel, the system get reset. Yinghai -- 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/