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SubjectRe: (resend) take3: Updated CPU Hotplug patches for IA64 (pj blessed) Patch [6/7]
Andrew Morton wrote:
> Ashok Raj <ashok.raj@intel.com> wrote:

> It appears that x86's arch_init_sched_domains() is blindly assuming that
> each CPU's migration thread is running and is pointed to by
> rq->migration_thread. But from the above you'll see that CPU0's migration
> thread is running, but CPU1's has never been created, hence the
> null-pointer deref.
>

The assumption is that the migration thread is running unless
cpu_is_offline is true. I think this is still OK, I can have
another look at it if anyone thinks otherwise.

As far as arch_init_sched_domains goes, it can be run as late
as you like if it needs to be moved.
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