From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758581Ab3G3JYK (ORCPT ); Tue, 30 Jul 2013 05:24:10 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:20071 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758369Ab3G3JYG (ORCPT ); Tue, 30 Jul 2013 05:24:06 -0400 Message-ID: <51F7861E.5050903@huawei.com> Date: Tue, 30 Jul 2013 17:23:42 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: CC: , , Subject: Re: call_usermodehelper() returns -513 when ocfs2 umounting filesystems References: <51F76BA0.4000007@huawei.com> <51F77E7D.20608@huawei.com> In-Reply-To: <51F77E7D.20608@huawei.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.135.68.215] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2013/7/30 16:51, Xue jiufei wrote: > On 2013/7/30 15:30, Xue jiufei wrote: >> Hi, >> We have encountered an error when umounting ocfs2 filesystems. >> Function ocfs2_leave_group() calls call_usermodehelper() to stop >> heartbeat thread, but it returns -513(ERESTARTNOINTR) in one test. >> And after that error, every times umounting the filesystem, it >> returns the same error. >> And at the same time, there's another kworker thread which is >> sending messages to other nodes always return return errno >> -512(ERESTARTSYS). So I think these two threads may have >> pending signals remain. >> This error can not reproduced any longer. Has any ideas? You should have made the question more clear, and that is: How is it possible that a workqueue kernel thread has pending signals? >> >> The log is as follows: >> [58463.684504] (kworker/u:1,17332,0):o2net_send_tcp_msg:1332 ERROR: sendmsg returned -512 instead of 104 >> [58915.213299] ocfs2: Error -513 running user helper "/usr/sbin/ocfs2_hb_ctl -K -u A5FD0ED8733D4F9C98D23B326AD7DE10" >> [59406.443615] ocfs2: Error -513 running user helper "/usr/sbin/ocfs2_hb_ctl -K -u A5FD0ED8733D4F9C98D23B326AD7DE10" >>