Messages in this thread | | | Subject | Re: [BUG] cpu-hotplug: Can't offline the CPU with naughty realtime processes | From | Rusty Russell <> | Date | Tue, 08 May 2007 13:02:25 +1000 |
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On Tue, 2007-05-08 at 11:41 +0900, Satoru Takeuchi wrote: > At Mon, 07 May 2007 23:42:53 +1000, > Rusty Russell wrote: > > I look forward to your patch! > > Rusty. > > Thanks, I'll do. Maybe this work will take several days including test.
Excellent.
> BTW, how should I manage rt process having max priority as Gautham said? > He said that it's OK unless such kernel thread exists. However, currently > MAX_USER_RT_PRIORITY is equal to MAX_RT_PRIO, so user process also be able > to cause this problem. Is Srivatsa's idea 2 acceptable? Or just apply > "Shouldn't abuse highest rt proority" rule?
We used to be able to create kernel threads higher than any userspace priority. If this is no longer true, I think that's OK: equal priority still means we'll get scheduled, right?
Cheers, Rusty.
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