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Groups > linux.kernel > #1399255 > unrolled thread

Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online calls to hotplugged cpu")]

Started byArjan van de Ven <arjan@linux.intel.com>
First post2016-05-11 17:30 +0200
Last post2016-05-11 19:10 +0200
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  Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online  calls to hotplugged cpu")] Arjan van de Ven <arjan@linux.intel.com> - 2016-05-11 17:30 +0200
    Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online  calls to hotplugged cpu")] Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-05-11 19:10 +0200

#1399255 — Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online calls to hotplugged cpu")]

FromArjan van de Ven <arjan@linux.intel.com>
Date2016-05-11 17:30 +0200
SubjectRe: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online calls to hotplugged cpu")]
Message-ID<rxEfg-2vs-13@gated-at.bofh.it>
> Oh, and this was with acpi_idle. This machine already failed to
> resume from S3 with intel_idle since forever, as detailed in
> https://bugzilla.kernel.org/show_bug.cgi?id=107151
> but acpi_idle worked fine until now.

can you disable (in sysfs) all C states other than C0/C1 and see if that makes it go away?
that would point at the problem pretty clearly...

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#1399370

FromVille Syrjälä <ville.syrjala@linux.intel.com>
Date2016-05-11 19:10 +0200
Message-ID<rxFO2-42S-13@gated-at.bofh.it>
In reply to#1399255
On Wed, May 11, 2016 at 08:26:58AM -0700, Arjan van de Ven wrote:
> 
> > Oh, and this was with acpi_idle. This machine already failed to
> > resume from S3 with intel_idle since forever, as detailed in
> > https://bugzilla.kernel.org/show_bug.cgi?id=107151
> > but acpi_idle worked fine until now.
> 
> can you disable (in sysfs) all C states other than C0/C1 and see if that makes it go away?
> that would point at the problem pretty clearly...

No help there it seems.

However, as a sanity check I also tested that trick on the parent commit,
and disabling ACPI C2-C3 makes that one fail as well. Disabling just C3
is OK apparently.

-- 
Ville Syrjälä
Intel OTC

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