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SubjectRe: Linux 4.15-rc2: Regression in resume from ACPI S3
Date
On Monday, December 4, 2017 11:41:06 PM CET Rafael J. Wysocki wrote:
> On Monday, December 4, 2017 11:38:54 PM CET Thomas Gleixner wrote:
> > On Mon, 4 Dec 2017, Linus Torvalds wrote:
> >
> > > On Mon, Dec 4, 2017 at 2:25 PM, Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> > > >
> > > > So far, resume from suspend-to-RAM (ACPI S3) is broken on all of the
> > > > systems I have tested, so it is probably safe to assume it to be
> > > > broken everywhere.
> > >
> > > Oh, it's definitely not broken everywhere, because I use it myself,
> > > and was traveling last week due to my mom's bday.
> > >
> > > HOWEVER.
> > >
> > > Some of the x86 work seems to have broken it for some configurations.
> > > In particular, do you have a big "everything enabled" kernel config -
> > > particularly lockdep and irqflags tracing enabled?
> > >
> > > Andy has a patch, but it hasn't made it to me yet (probably because
> > > the x86 people are very busy with the kaiser work):
>
> This definitely fixes the problem at least on one of the affected machines.

I can confirm that the Andy's patch fixes it on all systems that had this
issue here.

Thanks,
Rafael

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