Re: [RFC][PATCH] avoid cpu hot remove of cpus which have special RT tasks.
- From: Christoph Lameter <clameter@xxxxxxx>
- Date: Fri, 16 Jun 2006 09:09:22 -0700 (PDT)
On Fri, 16 Jun 2006, KAMEZAWA Hiroyuki wrote:
When cpu hot remove happens, tasks on the target cpu will be migrated even if
no available cpus in tsk->cpus_allowed. (See: move_task_off_dead_cpu().)
Could we kill the process instead? If a process has been forced to run on
a certain cpu then it is an error to migrate it to a different one. If a
system wiil do cpu hot remove then the system needs to be configured in
such a way as to allow processes to be migrated to other processors.
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