Date: Mon, 19 Oct 2015 07:12:59 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203864] ZFS deadlock between zfs send, zfs rename and ctrl-C Message-ID: <bug-203864-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203864 Bug ID: 203864 Summary: ZFS deadlock between zfs send, zfs rename and ctrl-C Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: peter@FreeBSD.org I tried to abort a zfs send: 07:06:26 2.28G zroot/j/jails/admin-svn@daily.31 07:06:27 2.29G zroot/j/jails/admin-svn@daily.31 ^C load: 1.27 cmd: zfs 72318 [tx->tx_sync_done_cv] 101.46r 0.00u 1.89s 0% 4212k load: 0.84 cmd: zfs 72318 [tx->tx_sync_done_cv] 127.51r 0.00u 1.89s 0% 4212k load: 0.84 cmd: zfs 72318 [tx->tx_sync_done_cv] 127.98r 0.00u 1.89s 0% 4212k It turns out the freebsd-snapshot cron was running at that very instant and it lead to a deadlock: # ps -axl | grep tx 0 74866 72290 0 20 0 40336 3528 tx->tx_s D - 0:00.00 zfs rename zroot/j/jails/monitor@hourly.15 zroot/j/jails/monitor@hourly.16 0 72318 69290 0 20 0 42520 4228 tx->tx_s DE+ 0 0:01.89 zfs send -Rv zroot/j/jails/admin-svn@sync.00 I've seen this before but never quite at such a bad time. Neither can be kill -9'ed. -- You are receiving this mail because: You are the assignee for the bug.
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