> It irks me that a user-space program can lock up the machine 
> (that is so, so M$ ), but at least there is a cure.   

I am always sad when a userspace stuff can hang the system (this is so, so 1995), but I am curious: how are you determining that a Linux box is frozen?

Since I first thought in 1996 that the Linux version of Doom locked my PC -- and it wasn't actually the case, even if the keyboard was not responding, because the box responded to rlogin --, I _never_ declare a machine frozen until I check if I can ssh to it from a secondary box. *Only* when I can't ssh to it I declare it dead.

Cheers,
R-C






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