Re: ACPI sleep issues (trap 4)

[Maxime Villard <max%m00nbsd.net@localhost>]

Le 21/09/2017 à 18:07, Joerg Sonnenberger a écrit :
> On Thu, Sep 21, 2017 at 12:14:19PM +0200, Maxime Villard wrote:
> > I wouldn't expect ACPI sleep to be reliable, there are several sets of
> > registers that are not saved & restored.
>
> FPU state is saved before, the generic purpose registers are saved as
> required by the ABI. Can you be more precise in what exactly needs to be
> saved?

dbregs and MSRs (PMCs, PAT, etc). Also not sure the FPU state is saved
correctly (my xcr0 change needs to be tested).

Maxime