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    SubjectRe: Problem with freezable workqueues
    Date
    On Wednesday, 28 February 2007 04:51, Srivatsa Vaddagiri wrote:
    > On Wed, Feb 28, 2007 at 08:31:13AM +0530, Srivatsa Vaddagiri wrote:
    > > This problem (of kthread_stopping a frozen thread) was there when we
    > > implemented freezer-based cpu hotplug. We worked around that in the
    > > callbacks by thawing the worker thread first before kthread_stopping it,
    > > which is working pretty neatly.
    > >
    > > Should that fix the issue?
    >
    > In addition to thawing worker thread before kthread_stopping it, there
    > are minor changes required in worker threads, to check for
    > is_cpu_offline(bind_cpu) when they come out of refrigerator and jump to
    > wait_to_die if so (ex: softirq.c).
    >
    > I guess you would need these changes before freezer-based hotplug is
    > merged, in which case Gautham can send those patches out first.

    Yes, please, if that's possible.
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