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

From	Ville Syrjälä <ville.syrjala@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online calls to hotplugged cpu")]
Date	2016-05-11 19:10 +0200
Message-ID	<rxFO2-42S-13@gated-at.bofh.it> (permalink)
References	<rxzph-6fl-33@gated-at.bofh.it> <rxEfg-2vs-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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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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

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