From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753461Ab3G3M6t (ORCPT ); Tue, 30 Jul 2013 08:58:49 -0400 Received: from mail-qa0-f52.google.com ([209.85.216.52]:45734 "EHLO mail-qa0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750863Ab3G3M6s (ORCPT ); Tue, 30 Jul 2013 08:58:48 -0400 Date: Tue, 30 Jul 2013 08:58:34 -0400 From: Tejun Heo To: Xue jiufei Cc: oleg@redhat.com, linux-kernel@vger.kernel.org Subject: Re: call_usermodehelper() returns -513 when ocfs2 umounting filesystems Message-ID: <20130730125834.GA12016@htj.dyndns.org> References: <51F76BA0.4000007@huawei.com> <51F77E7D.20608@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <51F77E7D.20608@huawei.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 30, 2013 at 04:51:09PM +0800, Xue jiufei wrote: > The kernel version is 3.0.58. That's way too old for upstream to do any meaningful debugging without more specific information. Kernel threads usually don't deal with signals but there are a handful weird places in kernel which make use of actual signals to affect the control flow. ISTR modifying some so that it's not too crazy but I could be misremembering.... Thanks. -- tejun