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Subject: [Bug 209112] /usr/sbin/jail jails fail to launch with possible race
 when jails mount common dir with nullfs
Date: Mon, 27 Jun 2016 06:14:57 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209112

--- Comment #3 from ari@ish.com.au ---
I'm seeing similar issues in my environment:

* FreeBSD 10.2
* about 30 jails started on boot
* usually about 4-6 of those jails fail to start
* no error logs anywhere I can find
* no nullfs or unionfs
* ZFS volume per jail

Starting up the jails individually never fails, so I'm guessing some sort of
race condition. But maybe a different one to the original author of this bu=
g.

At any rate, better logging in the jail system would be very welcome.

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