linux-kernel - Re: call_usermodehelper() returns -513 when ocfs2 umounting filesystems

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Message-ID: <51F77E7D.20608@huawei.com>
Date:	Tue, 30 Jul 2013 16:51:09 +0800
From:	Xue jiufei <xuejiufei@...wei.com>
To:	<xuejiufei@...wei.com>
CC:	<oleg@...hat.com>, <tj@...nel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: call_usermodehelper() returns -513 when ocfs2 umounting filesystems

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?
> 
> 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"
> 
> Thanks.
> 		--joyce
The kernel version is 3.0.58.
> 
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