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SubjectRe: Suspend-resume failure on Intel Eagle Lake Core2Duo
On Thu, 27 Jul 2017, Tomi Sarvela wrote:

> On 27/07/17 10:42, Thomas Gleixner wrote:
> > On Thu, 27 Jul 2017, Tomi Sarvela wrote:
> > > On 26/07/17 17:26, Thomas Gleixner wrote:
> > > > So reverting that commit does not help. Does it help on your machine?
> > >
> > > Yes. Reverting it does not cause the machine to lock up on resume.
> > >
> > > I haven't tested if the machine locks up later on, but at least it
> > > survives
> > > couple of s/r cycles.
> >
> > Can you please try to add 'nohpet' to the kernel command line?
> Option nohpet didn't change anything, still hangs on s/r.

Ok. Was a shot in the dark. I tried on a similar machine, but that one
resumes fine (except that the AHCI controller plays silly buggers, but
nothing interrupt related). I might have access to another core2duo machine

I'll send you a debug patch shortly, but can you please first check when
the wreckage happens by testing the states in



That might give some first hint to narrow down the issue.

Debug patch follows soon.



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