Date: Tue, 28 Jun 2005 10:58:59 -0400 From: Brian Fundakowski Feldman <green@freebsd.org> To: Eirik =?iso-8859-1?Q?=D8verby?= <eirik@unicore.no> Cc: stable@freebsd.org Subject: Re: Jails that won't die... Message-ID: <20050628145859.GC1074@green.homeunix.org> In-Reply-To: <92135CB3-5540-4D06-A991-708C8AAD6AC7@unicore.no> References: <92135CB3-5540-4D06-A991-708C8AAD6AC7@unicore.no>
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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...) -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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