[Bug 203864] ZFS deadlock between zfs send, zfs rename and ctrl-C

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203864

--- Comment #11 from roel at qsp.nl ---
That's not that hard:

*** /home/roel/zrep     Wed Jan 13 22:12:27 2016
--- zrep        Sun Feb 21 13:24:35 2016
***************
*** 1160,1164 ****
        if [[ $? -ne 0 ]] ; then
                zfs rename ${newsnap} ${newsnap}_unsent
                zrep_errquit Problem doing sync for $newsnap. renamed to
${newsnap}_unsent
        fi
---
        if [[ $? -ne 0 ]] ; then
+               echo "Error on send.. waiting 60 seconds to prevent deadlock"
+               sleep 60
                zfs rename ${newsnap} ${newsnap}_unsent
                zrep_errquit Problem doing sync for $newsnap. renamed to
${newsnap}_unsent
        fi

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