Re: power-off delay/hang due to commit 6d25be57 (mainline)

Rafael J. Wysocki
2020-12-02T18:32:27Z

On Wed, Dec 2, 2020 at 7:03 PM Sebastian Andrzej Siewior
<bigeasy@linutronix.de> wrote:
>
> On 2020-10-26 18:20:59 [+0100], To Rafael J. Wysocki wrote:
> > > > > > Done as Bug 208877.
> > > > Rafael, do you have any suggestions?
> > >
> > > I've lost track of this sorry.
> > >
> > > I have ideas, let me get back to this next week.
> >
> > :)
>
> Rafael, any update? If you outline an idea or so then I may be able to
> form a patch out of it. Otherwise I have no idea how to fix this - other
> than telling the driver to not poll in smaller intervals than
> 30secs.

The idea, roughly speaking, is to limit the number of outstanding work
items in the queue (basically, if there's a notification occurring
before the previous one can be handled, there is no need to queue up
another work item for it).