From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: kdump regression compared to v2.6.35 Date: Sun, 29 Aug 2010 14:36:37 +0200 Message-ID: <4C7A5455.7060905@kernel.org> References: <779893521.1479771283083393771.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <779893521.1479771283083393771.JavaMail.root-k5qu2F3t005+R5eDjrG6zsCp5Q1pQRjfhaY/URYTgi6ny3qCrzbmXA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kexec-bounces-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Errors-To: kexec-bounces+glkk-kexec=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: CAI Qian Cc: torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, linux-next-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kexec , linux-kernel List-Id: linux-next.vger.kernel.org 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? Thanks. -- tejun