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


Måns Rullgård wrote:

>Jan Engelhardt <jengelh@linux01.gwdg.de> writes:
>
>
>
>>>Subject: can I bring Linux down by running "renice -20
>>>cpu_intensive_process"?
>>>
>>>
>>>
>>Depends on what the cpu_intensive_process does. If it tries to allocate
>>lots of memory, maybe. If it's _just_ CPU (as in `perl -e '1 while 1'`),
>>you get a chance that you can input some commands on a terminal to kill it.
>>SCHED_FIFO'ing or SCHED_RR'ing such a process is sudden death of course.
>>
>>
>
>Sysrq+n changes all realtime tasks to normal priority.
>
>
>

Patient: "Doctor When I poke myself in the eye it hurts."
Doctor "Don't do that then."

--
Jeffrey Hundstad

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