From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756530Ab1IGQVn (ORCPT ); Wed, 7 Sep 2011 12:21:43 -0400 Received: from mga01.intel.com ([192.55.52.88]:4776 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756366Ab1IGQVk (ORCPT ); Wed, 7 Sep 2011 12:21:40 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.68,345,1312182000"; d="scan'208";a="48885082" Subject: Re: 3.0.3 kernel BUG at kernel/timer.c:1035 From: Lin Ming To: Frank van Maarseveen Cc: Andrew Morton , "linux-kernel@vger.kernel.org" In-Reply-To: <20110907102425.GA3423@janus> References: <20110824130238.GA24543@janus> <20110902011058.c5bad476.akpm@linux-foundation.org> <20110905123813.GA29763@janus> <1315320518.4235.3.camel@hp6530s> <20110907102425.GA3423@janus> Content-Type: text/plain; charset="ISO-8859-1" Date: Wed, 07 Sep 2011 20:36:19 +0800 Message-ID: <1315398979.2938.0.camel@hp6530s> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2011-09-07 at 18:24 +0800, Frank van Maarseveen wrote: > On Tue, Sep 06, 2011 at 10:48:38PM +0800, Lin Ming wrote: > > Does below patch help? > > > > >From a98b874437f871d5ecc3f6fe409b2b474b1f2731 Mon Sep 17 00:00:00 2001 > > From: Lin Ming > > Date: Tue, 6 Sep 2011 22:45:43 +0800 > > Subject: [PATCH] block: delete bdi writeback wakup_timer in blk_cleanup_queue() > > > > Signed-off-by: Lin Ming > > --- > > block/blk-core.c | 1 + > > 1 files changed, 1 insertions(+), 0 deletions(-) > > > > diff --git a/block/blk-core.c b/block/blk-core.c > > index 90e1ffd..22529a3 100644 > > --- a/block/blk-core.c > > +++ b/block/blk-core.c > > @@ -363,6 +363,7 @@ void blk_cleanup_queue(struct request_queue *q) > > blk_sync_queue(q); > > > > del_timer_sync(&q->backing_dev_info.laptop_mode_wb_timer); > > + del_timer_sync(&q->backing_dev_info.wb.wakeup_timer); > > mutex_lock(&q->sysfs_lock); > > queue_flag_set_unlocked(QUEUE_FLAG_DEAD, q); > > mutex_unlock(&q->sysfs_lock); > > -- > > 1.7.2.3 > > > > No, bug still present. Stack trace is the same and I double checked that > it was the new kernel (this time with a lot more debug enabled). Thanks for test. I'll try to reproduce this bug. Lin Ming