From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161540AbXDYMd4 (ORCPT ); Wed, 25 Apr 2007 08:33:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965565AbXDYMd4 (ORCPT ); Wed, 25 Apr 2007 08:33:56 -0400 Received: from mx2.suse.de ([195.135.220.15]:37532 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965552AbXDYMdz (ORCPT ); Wed, 25 Apr 2007 08:33:55 -0400 From: Andi Kleen Organization: SUSE Linux Products GmbH, Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg) To: Fernando Luis =?iso-8859-15?q?V=E1zquez_Cao?= Subject: Re: [PATCH 10/10] Use safe_apic_wait_icr_idle in __send_IPI_dest_field - x86_64 Date: Wed, 25 Apr 2007 14:33:40 +0200 User-Agent: KMail/1.9.6 Cc: "Eric W. Biederman" , horms@verge.net.au, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, vgoyal@in.ibm.com, mbligh@google.com, Keith Owens , akpm@linux-foundation.org References: <1177498984.16078.37.camel@sebastian.intellilink.co.jp> <1177501872.17974.56.camel@sebastian.intellilink.co.jp> In-Reply-To: <1177501872.17974.56.camel@sebastian.intellilink.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 8bit Content-Disposition: inline Message-Id: <200704251433.40302.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 25 April 2007 13:51:12 Fernando Luis Vázquez Cao wrote: > Use safe_apic_wait_icr_idle to check ICR idle bit if the vector is > NMI_VECTOR to avoid potential hangups in the event of crash when kdump > tries to stop the other CPUs. But what happens then when this fails? Won't this give another hang? Have you tested this? I applied the patches for now. -Andi