Date: Tue, 28 Mar 2006 20:31:43 -0600 From: Paul Schmehl <pauls@utdallas.edu> To: freebsd-ports@freebsd.org Subject: Problem stopping a program Message-ID: <6F8EC8DCFAC4D47258FEF35B@Paul-Schmehls-Computer.local>
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I'm working on a new port that uses a tcl script in daemon mode. I've=20
written an rc.d script to start and stop the daemon, and I'm having a=20
problem stopping the daemon. If I do it immediately, it stops just fine,=20
but if I leave the daemon running for a while, I cannot. (The daemon=20
spawns two child processes after it's started.)
Here's an example: /usr/local/etc/rc.d/sguild.sh restart
Stopping sguild
Waiting for PIDS: 4554 4558 4559, 4554 4558 4559, 4554 4558 4559, 4554 4558 =
4559, 4554 4558 4559, 4554 4558 4559, 4554 4558 4559, 4554 4558 4559, 4554=20
4558 4559, 4554 4558 4559, 4554 4558 4559, 4554 4558 4559, 4554 4558 4559,=20
4554 4558 4559,
This will go on indefinitely. If I kill the process and then try=20
restarting again, the child processes are gone, but the parent process is=20
not.
bash-2.05b# /usr/local/etc/rc.d/sguild.sh restart
Stopping sguild
Waiting for PIDS: 4554, 4554, 4554^C
bash-2.05b# /usr/local/etc/rc.d/sguild.sh restart
Stopping sguild
Waiting for PIDS: 4554, 4554^C
However, if I kill the (rc.d) process and then try to kill the daemon from=20
the cli, it dies immediately.
bash-2.05b# ps -auxw | grep sguild
root 4554 0.0 0.7 3636 2744 p0- I 11:21PM 0:00.08=20
/usr/local/bin/tclsh8.4 /usr/local/bin/sguild -D -c /usr/local/etc/s
root 34417 0.0 0.2 1408 732 p0 R+ 2:20AM 0:00.00 grep sguild
bash-2.05b# kill -9 4554
bash-2.05b# ps -auxw | grep sguild
root 34419 0.0 0.1 1408 568 p0 R+ 2:20AM 0:00.00 grep sguild
Here's the stop_cmd section of the script. (I had to write this because=20
the standard rc.d script couldn't find the process because the cli is=20
/usr/local/bin/tclsh8.4 /usr/local/bin/sguild.)
sguild_stop() {
if [ -z "${pids}" ]; then
echo "${name} not running?"
else
echo "Stopping ${name}"
kill -${sig_stop:-TERM} ${pids}
wait_for_pids ${pids}
fi
}
I've tried using KILL instead of TERM, but it doesn't make any difference.=20
Any idea what's wrong?
Paul Schmehl (pauls@utdallas.edu)
Adjunct Information Security Officer
University of Texas at Dallas
AVIEN Founding Member
http://www.utdallas.edu/
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