[Discuss-gnuradio] Software stopping of runaway realtime processes?

[Dan Halperin]

Hey,

I'm hoping someone has run into this problem before... We have a that 
lab we access remotely, and sometimes the students get a little 
overzealous in e.g. their rate selection, and the machines become 
unresponsive. I seem to be having a hard time getting them to stop using 
realtime mode.

2 Questions:

1) Can I somehow disable their ability to use realtime mode? The 
software fails gracefully in that case, I just can't find anything 
online about how to make the enable_realtime() call fail.

2) Can I set up some sort of watchdog process to auto-kill a process 
that is clearly going to cause the machine to become unresponsive? I'm 
not even sure how to identify such a process...

Thanks,

Dan