Using the Kernel Hangcheck Module

[Kurt Wall]

Anyone here used the kernel's built-in (well, module) software watchdog,
hangcheck-timer? I'm running it on a few dev systems at work that are
at least claimed to "hang" somewhat regularly. So far, I've seen no
evidence that the timer has tripped. That is, no task dump into 
/var/log/messages and no reboot. I load the module thusly, so unless
it doesn't work (possible) or the developers are smoking something and
not sharing (possible), I can't tell if the thing is working as designed
or not:

modprobe hangcheck-timer hangcheck_dump_tasks=1 hangcheck_reboot=1 \
	hangcheck_margin=180 hancheck_tick=60

Thanks.

Kurt