Messages in this thread | | | Date | Sat, 17 Jun 2006 16:53:19 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [RFC][PATCH] avoid cpu hot remove of cpus which have special RT tasks. |
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On Sat, 17 Jun 2006 17:29:32 +1000 Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> > As SIGSTOP/KILL patch I posted, the apps shouldn't do unexpected > > work, I think. > > I don't quite understand you here... the kernel doesn't need to enforce > anything but a dumb fallback policy where userspace is otherwise capable > of handling it themselves.
If all things about apps are properly maintained/managed, it is reconfigured by the user/system admin *before* cpu hotremove.
The case "the kernel have to move the task to other cpu which user doesn't want" means the application is already broken.
So, I think "stop mis-configurated process" can be one way for handling such apps.
For example) After exchanging broken cpu, the application can continue its work with the same # of cpus.
-Kame
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