Messages in this thread | | | Subject | Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online calls to hotplugged cpu")] | From | Arjan van de Ven <> | Date | Wed, 11 May 2016 05:44:14 -0700 |
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On 5/11/2016 3:19 AM, Ville Syrjälä 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.
this is the important clue part afaics.
some of these very old Atom's had issues (bios?) with S3 if the cores were in a too-deep C state, and at some point there was a workaround (I forgot where in the code) to ban those deep C states around S3 on those cpus. I wonder if moving things around has made said workaround ineffective.....
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