Messages in this thread | | | Date | Tue, 30 Jul 2013 17:23:42 +0800 | From | Li Zefan <> | Subject | Re: call_usermodehelper() returns -513 when ocfs2 umounting filesystems |
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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" >>
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