Re: Jails that won't die...
From: Brian Fundakowski Feldman (green_at_freebsd.org)
Date: 06/29/05
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Date: Wed, 29 Jun 2005 14:58:03 -0400 To: Eirik Qverby?= <eirik@unicore.no>
On Wed, Jun 29, 2005 at 03:28:09PM +0200, Eirik Øverby wrote:
>
> On 28. jun. 2005, at 16.58, Brian Fundakowski Feldman wrote:
>
> >On Tue, Jun 28, 2005 at 10:37:29AM +0200, Eirik Øverby wrote:
> >
> >>Hi,
> >>
> >>I have, since upgrading to 5.x and updating my management tools, seen
> >>a number of problems relating to stopping jails.
> >>
> >>I'm maintaining several hosts with a number of full-featured jails
> >>(i.e. full virtual FreeBSD installations in each jail), and in
> >>general this works fine. However, whenever I stop a jail using 'jexec
> >><id> kill -SIGNAL -1' or 'jexec <id> /bin/sh /etc/rc.shutdown' (in
> >>various combinations), jails have a tendency to stick around for
> >>minutes or hours - according to 'jls'. Often I see an entry in
> >>'netstat -a' indicating that there is one or more sockets in FIN_WAIT
> >>state, preventing the jail from coming down. Taking the virtual
> >>network interface (alias) down does not help. All I can do at this
> >>point is wait.
> >>
> >>I normally use 'jls' to determine whether or not a jail can be
> >>restarted (i.e. it's not running), but this is pretty useless in such
> >>cases. And right now I have a case where 'netstat -a' shows me
> >>nothing pertaining to the jail, though it has no processes running. I
> >>have therefore force-started the jail again, which seems to work
> >>nicely, but now 'jls' gives me two entries for this jail, with
> >>different JIDs.
> >>
> >>What am I doing wrong here?
> >>
> >
> >You could just use ps to check for jailed processes and check their
> >respective jails using the procfs status entry (at least according
> >to the ps manpage...)
>
> My jailctl script can do both - list by jls and list by processes in
> the jail. There are NO processes running in the jail.
So it's obviously not running, and you can mark its state as such.
-- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\ _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
- Previous message: Dominic Marks: "Re: graid3 + rsync + 5.4-STABLE repeatable panic (Fatal trap 12: page fault while in kernel mode)"
- In reply to: Eirik Øverby: "Re: Jails that won't die..."
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