From: Thomas Gleixner <tglx@linutronix.de>
To: Tomi Sarvela <tomi.p.sarvela@intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>,
jeffy.chen@rock-chips.com, linux-kernel@vger.kernel.org
Subject: Re: Suspend-resume failure on Intel Eagle Lake Core2Duo
Date: Thu, 27 Jul 2017 22:13:18 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.20.1707272209130.2368@nanos> (raw)
In-Reply-To: <alpine.DEB.2.20.1707272138080.2368@nanos>
On Thu, 27 Jul 2017, Thomas Gleixner wrote:
> 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
> tomorrow.
>
> I'll send you a debug patch shortly, but can you please first check when
> the wreckage happens by testing the states in
>
> /sys/power/pm_test
>
> freezer
> devices
> platform
> processors
> core
Actually for suspend to ram we only have
freezer, devices, platform
I assume it's platform because that is where the actual interrupt
suspend/resume happens.
If that survives, then it's the low level architecture s/r code which
fiddles with the interrupt controllers and leaves them in a state which is
not known to the core code.
Thanks,
tglx
next prev parent reply other threads:[~2017-07-27 20:13 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-24 13:45 Suspend-resume failure on Intel Eagle Lake Core2Duo Martin Peres
2017-07-24 15:28 ` Thomas Gleixner
2017-07-24 15:41 ` Martin Peres
2017-07-24 16:35 ` Thomas Gleixner
2017-07-24 16:37 ` Martin Peres
2017-07-25 7:01 ` Tomi Sarvela
2017-07-26 13:47 ` Martin Peres
2017-07-26 14:26 ` Thomas Gleixner
2017-07-27 7:36 ` Tomi Sarvela
2017-07-27 7:42 ` Thomas Gleixner
2017-07-27 8:12 ` Tomi Sarvela
2017-07-27 19:42 ` Thomas Gleixner
2017-07-27 20:13 ` Thomas Gleixner [this message]
2017-07-27 21:08 ` Thomas Gleixner
2017-07-28 12:29 ` Tomi Sarvela
2017-07-28 12:42 ` Thomas Gleixner
2017-07-28 13:15 ` Thomas Gleixner
2017-07-28 13:25 ` Tomi Sarvela
2017-07-28 14:13 ` Thomas Gleixner
2017-07-28 14:46 ` Tomi Sarvela
2017-07-28 14:50 ` Thomas Gleixner
2017-07-28 14:55 ` Tomi Sarvela
2017-07-28 16:26 ` Thomas Gleixner
2017-07-31 7:21 ` Tomi Sarvela
2017-07-31 7:45 ` Thomas Gleixner
2017-07-31 7:55 ` Tomi Sarvela
2017-07-31 8:29 ` Thomas Gleixner
2017-07-31 8:41 ` Tomi Sarvela
2017-07-31 14:04 ` Thomas Gleixner
2017-07-31 14:13 ` Tomi Sarvela
2017-07-31 15:06 ` Thomas Gleixner
2017-07-31 15:44 ` Tomi Sarvela
2017-07-31 15:55 ` Thomas Gleixner
2017-08-03 7:32 ` Masahiro Yamada
2017-08-03 8:23 ` Peter Zijlstra
2017-08-03 8:41 ` Marc Zyngier
2017-08-03 12:52 ` Masahiro Yamada
2017-08-03 13:30 ` Marc Zyngier
2017-08-07 4:45 ` Masahiro Yamada
2017-08-07 8:17 ` Marc Zyngier
2017-08-08 1:30 ` Masahiro Yamada
2017-08-08 7:39 ` Marc Zyngier
2017-08-09 4:03 ` Masahiro Yamada
2017-07-31 8:35 ` Thomas Gleixner
2017-07-28 12:34 ` Martin Peres
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