[Bug 196152] New: jail_list is not reversed when stopping jails

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196152

            Bug ID: 196152
           Summary: jail_list is not reversed when stopping jails
           Product: Base System
           Version: 10.1-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: conf
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: matt at tnpi.net

# grep jail /etc/rc.conf
jail_enable="YES"
jail_list="dns mysql vhost0 clamav spamassassin mail webmail haproxy monitor"

# service jail stop
Stopping jails: dns mysql vhost0 clamav spamassassin mail webmail haproxy
monitor.

# service jail start
Starting jails: dns mysql vhost0 clamav spamassassin mail webmail haproxy
monitor.

Notice that the ordering of jails is such that when starting up DNS comes
online before web and mail servers. Web servers come up before haproxy. Makes
sense, right?

Notice that at shutdown time, the list is *not* reversed. So the later services
end up having their resources (DNS, DB, etc..) ripped out from under them,
causing them to take longer than necessary to shut down.

I can't think of a time when jail_list shouldn't be reversed during
shutdown/stop.

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