lkml.org 
[lkml]   [2014]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/5] softlockup: make detector be aware of task switch of processes hogging cpu

* 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


\
 
 \ /
  Last update: 2014-08-18 21:41    [W:0.103 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site