Date: Mon, 12 May 2003 23:53:12 -0700 (PDT) From: Doug Barton <DougB@FreeBSD.org> To: Don Lewis <truckman@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: mtv leaves a zombie after exit Message-ID: <20030512230900.S647@znfgre.qbhto.arg> In-Reply-To: <200305130601.h4D612M7049395@gw.catspoiler.org> References: <200305130601.h4D612M7049395@gw.catspoiler.org>
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On Mon, 12 May 2003, Don Lewis wrote:
> On 12 May, Doug Barton wrote:
> > On Mon, 12 May 2003, Terry Lambert wrote:
> >
> >> A "ps -gaxl" will print the wait channel, which may be more
> >> informative.
> >
> > UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND
> > 1000 0 1 0 -84 0 0 0 - ZW p4 0:00.00 (mtvp)
> >
> > BTW, inre your question about the shell, it's bash. But, I get the exact
> > same results if mtv is started as a child of the shell, as a child of
> > windowmaker, or as a child of netscape.
>
> Does this application use Linux threads?
Yes. I've never needed the linux threads port to run mtv, but just for
grins I installed it and I get the same results.
> The following code in wait1() makes me think that if a thread somehow
> gets orphaned by the parent Linux process, it will never get reaped.
> The exit code for Linux should probably wait for any child threads to
> exit.
Cool! Fixing that is beyond me, but if someone sends me a patch, I'll be
glad to test it. Thanks for your analysis.
Doug
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