Messages in this thread | | | Date | Mon, 18 Aug 2014 21:02:00 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 2/5] softlockup: make detector be aware of task switch of processes hogging cpu |
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* Don Zickus <dzickus@redhat.com> wrote:
> > > > So I agree with the motivation of this improvement, but > > > > is this implementation namespace-safe? > > > > > > What namespace are you worried about colliding with? I > > > thought softlockup_ would provide the safety?? Maybe I > > > am missing something obvious. :-( > > > > I meant PID namespaces - a PID in itself isn't guaranteed > > to be unique across the system. > > Ah, I don't think we thought about that. Is there a better > way to do this? Is there a domain id or something that can > be OR'd with the pid?
What is always unique is the task pointer itself. We use pids when we interface with user-space - but we don't really do that here, right?
Thanks,
Ingo
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