I've been trying to replicate the problem but I'm unable to do it, lols. I have 
removed the output to /dev/null and I took it off the realtime scheduling. 
Very, very weird. Would the actual cron, or screen application be able to cause 
this? 
- Michael

> From: michs...@live.no
> To: hlds_linux@list.valvesoftware.com
> Date: Mon, 12 Dec 2011 08:57:36 +0100
> Subject: Re: [hlds_linux] Server locking up with 100% cpu usage
> 
> 
> Some more info: The process is ran by its own user, and it is running under 
> realtime-priority. 
> 
> > Date: Sun, 11 Dec 2011 15:33:56 -0700
> > From: je...@opendreams.net
> > To: hlds_linux@list.valvesoftware.com
> > Subject: Re: [hlds_linux] Server locking up with 100% cpu usage
> > 
> > 
> > Sending a "stop" or "quit" (or whatever works, I use quit) to the 
> > console is good.  A lot of people miss that and just send kill -9 to the 
> > binary process (srcds_linux) and don't realize that the bash script 
> > (srcds_run) will auto-restart the process via crash recovery.
> > 
> > However, it looks like the immediate next thing done in the script is to 
> > kill the whole screen process, which would kill everything in it.  There 
> > is no wait between sending the quit command, so the server is not 
> > cleanly quitting and clients are probably not being cleanly notified. 
> > You need to give the server a little time to actually quit.  At the very 
> > least, put a "sleep 3" in there right after the "echo -n "Stoppe 
> > $SCREENNAME" or something.
> > 
> > In my script, I send a quit, monitor the process for something like ten 
> > seconds to verify that it actually quit, and then kill the whole tmux 
> > (like screen) session.  It's not a quick process because srcds servers 
> > like to crash when "quit" is issued, which is awesome.
> > 
> > Anyway, this looks pretty reasonable.
> > 
> > 
> > 
> > Mike Johansen wrote:
> > > By killing it I mean:
> > >
> > > function stop_server {
> > >   if [[ `screen -ls | grep $SCREENNAME` ]]; then
> > >   echo -n "Stoppe $SCREENNAME"
> > >   kill `screen -ls | grep $SCREENNAME | awk -F . '{print $1}'| awk '{print
> > > $1}'`
> > >   echo " ... done."
> > >   else
> > >   echo "Konnte den Screentab $SCREENNAME nicht finden"
> > >   fi
> > > }
> > >
> > > This is not my script, I got it from another site. And the host does not 
> > > go
> > > down, I never said that, it locks up. It's online, and the hardware has 
> > > been
> > > tested yesterday by the DC and they can report that the hardware is as
> > > stable as can be. The only thing the logs show is the usual stuff, it does
> > > not report anything useful in terms of the srcds locking up.
> > 
> > -- 
> > # Jesse Molina
> > # Mail = je...@opendreams.net
> > # Page = page-je...@opendreams.net
> > # Cell = 1.602.323.7608
> > # Web  = http://www.opendreams.net/jesse/
> > 
> > 
> > 
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