Re: can I bring Linux down by running "renice -20cpu_intensive_process"?

[Lee Revell]

On Sun, 2006-03-12 at 01:41 +0000, Luke-Jr wrote:
> On Friday 10 March 2006 22:01, Måns Rullgård wrote:
> > Sysrq+n changes all realtime tasks to normal priority.
> 
> Would the kernel's main loop (where I presume Sysreq is handled) get a chance 
> to run with a constantly busy realtime task?

No, other tasks will not get to run at all.  A SCHED_FIFO task that
spins forever is a fatal bug.  Making it less dangerous would require
making it less useful.

Lee

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