[AMD Official Use Only]
> -----Original Message-----
> From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
> Sent: Thursday, April 14, 2022 05:57
> To: Limonciello, Mario <Mario.Limonciello@xxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx; Gong, Richard <Richard.Gong@xxxxxxx>
> Subject: Re: Allow playing dead in C3 for 5.15.y
>
> On Tue, Apr 12, 2022 at 10:15:37PM +0000, Limonciello, Mario wrote:
> > [Public]
> >
> > Hi,
> >
> > A change went into 5.17 to allow CPUs to play dead in the C3 state which
> fixed freezes on s2idle entry if a CPU is offlined by a user.
> > This has had some time to bake now, and a regression was identified on an
> ancient machine that is now fixed.
> >
> > Can you please backport these commits to 5.15.y to fix that problem and
> avoid the regression?
> > commit d6b88ce2eb9d2698eb24451eb92c0a1649b17bb1 ("ACPI: processor
> idle: Allow playing dead in C3 state")
>
> Now queued up.
>
> > commit 0f00b1b00a44bf3b5e905dabfde2d51c490678ad ("ACPI: processor:
> idle: fix lockup regression on 32-bit ThinkPad T40").
My apologies; I must have had two references in my tree. The correct hash is
bfe55a1f7fd6bfede16078bf04c6250fbca11588
>
> There is no such commit in Linus's tree :(
>
> thanks,
>
> greg k-h
