Date: Mon, 4 Jul 2011 17:13:00 -0500 From: Brandon Gooch <jamesbrandongooch@gmail.com> To: Jamie Gritton <jamie@freebsd.org> Cc: freebsd-jail@freebsd.org Subject: Re: New jail(8) with configuration files, not yet in head Message-ID: <CALBk6yLEnJuBQnwdDracAScGj8hsopoK8enQTE=v5Tr9qSoXmQ@mail.gmail.com> In-Reply-To: <4E123594.6030304@FreeBSD.org> References: <4E114EA9.4000605@FreeBSD.org> <CALBk6y%2BYWzOUzju-yN-bREX=4PY1pfhqX=QhW3K2qAExXkn8Mg@mail.gmail.com> <4E123594.6030304@FreeBSD.org>
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On Mon, Jul 4, 2011 at 4:50 PM, Jamie Gritton <jamie@freebsd.org> wrote: > Oh, never good when "(null)" shows up. I'll see what I'm trying to run > that isn't there. > > - Jamie > > > On 07/04/11 15:36, Brandon Gooch wrote: >> >> I did however notice a minor nit in the output when removing a jail. >> Here's the scenario: > > ... >> >> Now, when I go to remove the jail: >> >> # jail -r ports >> Stopping cron. >> Waiting for PIDS: 29824. >> Terminated >> . >> jail: ports: (null): failed >> >> I don't think it's anything to worry about, as the jail does indeed >> get removed. I wonder though if this might be a indicator of some >> underlying problem I haven't ran into yet with my simplistic testing. > Thanks for checking it out. Here's another take on perhaps the same underlying issue. If I've jexec'd into the jail, say something like this: # jexec testjail /bin/tcsh and then I try removing the jail from another terminal (jail -r testjail), the jail -r command hangs for about 15-20 seconds, I suppose waiting for the jexec'd shell to exit, before finally killing the jail off outright. I don't see the aforementioned behavior (jail: testjail: (null): failed). Here's what it looks like: # jail -r ports Stopping ftpd. Waiting for PIDS: 32845. Stopping cron. . Terminated ^T load: 0.19 cmd: jail 32860 [kqread] 1.05r 0.00u 0.00s 0% 1696k ^T load: 0.09 cmd: jail 32475 [kqread] 10.09r 0.00u 0.00s 0% 1692k ...then testjail is finally "Killed". Some sort of race condition maybe? -Brandon
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