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

[Arjan van de Ven]

> 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...