Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754966AbYGHPqT (ORCPT ); Tue, 8 Jul 2008 11:46:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753684AbYGHPqK (ORCPT ); Tue, 8 Jul 2008 11:46:10 -0400 Received: from rgminet01.oracle.com ([148.87.113.118]:33634 "EHLO rgminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752350AbYGHPqJ (ORCPT ); Tue, 8 Jul 2008 11:46:09 -0400 Date: Tue, 8 Jul 2008 08:39:02 -0700 From: Randy Dunlap To: Ingo Molnar Cc: lkml , Linus Torvalds , "Rafael J. Wysocki" , Kernel Testers List , Yinghai Lu Subject: Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n Message-Id: <20080708083902.e564face.randy.dunlap@oracle.com> In-Reply-To: <20080708051629.GA12595@elte.hu> References: <20080706111750.a6d77e81.randy.dunlap@oracle.com> <20080707063218.GC23583@elte.hu> <20080707113917.6fda3f7d.randy.dunlap@oracle.com> <20080707154042.04bb492e.randy.dunlap@oracle.com> <20080708051629.GA12595@elte.hu> Organization: Oracle Linux Eng. X-Mailer: Sylpheed 2.5.0 (GTK+ 2.12.0; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1241 Lines: 35 On Tue, 8 Jul 2008 07:16:29 +0200 Ingo Molnar wrote: > > * Randy Dunlap wrote: > > > > $ git bisect start > > > $ git bisect bad v2.6.26-rc1 > > > $ git bisect good v2.6.25 > > > > > > That's only about 1.29M lines of changes. > > > > git bisect and normal rebooting did not find a problem. > > > > I'll repeat this using kexec to boot the new kernel and see if that > > locates any issues... since I normally use kexec to load/test new > > kernels and that was how the failure occurred (occurs). > > ah, so the hang only occurs if you kexec a post-v2.6.25 kernel? (from > any other kernel, or from a post-v2.6.25 kernel?) Host (first) kernel is 2.6.25 with NUMA=y. kexec of 2.6.25 with NUMA=n works, kexec of 2.6.26-rc[123456789] with NUMA=n fails/hangs. kexec of 2.6.26-rc* with NUMA=y works. kernel configs will be in next email reply to YH. --- ~Randy Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA http://linuxplumbersconf.org/ -- 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/