From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from hera.kernel.org ([140.211.167.34]) by bombadil.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1OpdoM-0005VM-Gg for kexec@lists.infradead.org; Sun, 29 Aug 2010 09:04:22 +0000 Message-ID: <4C7A20F6.5070802@kernel.org> Date: Sun, 29 Aug 2010 10:57:26 +0200 From: Tejun Heo MIME-Version: 1.0 Subject: Re: kdump regression compared to v2.6.35 References: <181596874.1477361283065264575.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> In-Reply-To: <181596874.1477361283065264575.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: caiqian@redhat.com Cc: kexec , linux-next@vger.kernel.org, torvalds@linux-foundation.org, linux-kernel On 08/29/2010 09:01 AM, caiqian@redhat.com wrote: > Further bisect indicated this bad commit from the merge. Given kdump > kernel was running with maxcpus=1, I guess this work caused fs/bio.c > hung in the workqueue on UP. Reverted the whole merge let kdump work > again. Can you please pull from the following git tree and see whether it fixes the problem? There was a bug in nr_active accounting. git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-linus Thanks. -- tejun _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec 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 10:57:26 +0200 Message-ID: <4C7A20F6.5070802@kernel.org> References: <181596874.1477361283065264575.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: <181596874.1477361283065264575.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: caiqian-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: kexec , linux-next-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, linux-kernel List-Id: linux-next.vger.kernel.org On 08/29/2010 09:01 AM, caiqian-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org wrote: > Further bisect indicated this bad commit from the merge. Given kdump > kernel was running with maxcpus=1, I guess this work caused fs/bio.c > hung in the workqueue on UP. Reverted the whole merge let kdump work > again. Can you please pull from the following git tree and see whether it fixes the problem? There was a bug in nr_active accounting. git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-linus Thanks. -- tejun From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752399Ab0H2JEp (ORCPT ); Sun, 29 Aug 2010 05:04:45 -0400 Received: from hera.kernel.org ([140.211.167.34]:48419 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750760Ab0H2JEf (ORCPT ); Sun, 29 Aug 2010 05:04:35 -0400 Message-ID: <4C7A20F6.5070802@kernel.org> Date: Sun, 29 Aug 2010 10:57:26 +0200 From: Tejun Heo User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.8) Gecko/20100802 Thunderbird/3.1.2 MIME-Version: 1.0 To: caiqian@redhat.com CC: torvalds@linux-foundation.org, linux-next@vger.kernel.org, kexec , linux-kernel Subject: Re: kdump regression compared to v2.6.35 References: <181596874.1477361283065264575.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> In-Reply-To: <181596874.1477361283065264575.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Sun, 29 Aug 2010 09:03:48 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/29/2010 09:01 AM, caiqian@redhat.com wrote: > Further bisect indicated this bad commit from the merge. Given kdump > kernel was running with maxcpus=1, I guess this work caused fs/bio.c > hung in the workqueue on UP. Reverted the whole merge let kdump work > again. Can you please pull from the following git tree and see whether it fixes the problem? There was a bug in nr_active accounting. git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-linus Thanks. -- tejun