Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754691Ab0H3DnR (ORCPT ); Sun, 29 Aug 2010 23:43:17 -0400 Received: from mx4-phx2.redhat.com ([209.132.183.25]:41994 "EHLO mx02.colomx.prod.int.phx2.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754616Ab0H3DnP (ORCPT ); Sun, 29 Aug 2010 23:43:15 -0400 Date: Sun, 29 Aug 2010 23:42:53 -0400 (EDT) From: CAI Qian To: Tejun Heo Cc: kexec , linux-next@vger.kernel.org, torvalds@linux-foundation.org, linux-kernel Message-ID: <1888320510.1487031283139773505.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> In-Reply-To: <4C7A5455.7060905@kernel.org> Subject: Re: kdump regression compared to v2.6.35 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.5.5.72] X-Mailer: Zimbra 5.0.21_GA_3150.RHEL4_64 (ZimbraWebClient - FF3.0 (Linux)/5.0.21_GA_3150.RHEL4_64) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 904 Lines: 29 ----- "Tejun Heo" wrote: > Hello, > > On 08/29/2010 02:03 PM, CAI Qian wrote: > > > > ----- "Tejun Heo" wrote: > > > >> On 08/29/2010 01:56 PM, CAI Qian wrote: > >>> It is easy to reproduce by passing maxcpus=1 to the first kernel. > >> > >> Do you mean booting w/ maxcpus=1 hangs the first kernel even w/o > >> kdump? > > Yes, here was the log, > > Hmmm... I can't reproduce it here. I wonder what the difference is. > Can you please trigger sysrq-t after the boot is hung and post the > result? Sysrq keys did not work at this early stage of booting for me even adding sysrq_always_enabled. > Thanks. > > -- > tejun -- 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/