[lkml]   [2006]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: can I bring Linux down by running "renice -20 cpu_intensive_process"?
Jeffrey Hundstad <> writes:

> Måns Rullgård wrote:
>>Jan Engelhardt <> writes:
>>>>Subject: can I bring Linux down by running "renice -20
>>> 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."

A bug might cause an otherwise well-behaved realtime process to start
spinning in a loop or something. Having a way to stop it is good,

Måns Rullgård
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-03-11 11:52    [W:0.105 / U:1.648 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site