On 16/2/07 10:19, "Zachary Amsden" <[email protected]> wrote:
> Doesn't stop_machine_run already take care of getting you out of all
> kernel threads? So you can only be sleeping, not preempted, in which
> case, this might not be an issue?
It ensures that no (non-stopmachine) threads are running on any of the other
CPUs, but it doesn't guarantee that all threads are at any form of quiescent
point. They can certainly have private references to machine addresses.
Otherwise, what would be the point of the process freezer? :-)
-- Keir
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