Re: Hibernate resume bug around 3,18-rc2 - Full PAT support

From: vasvir
Date: Fri Nov 20 2015 - 05:04:49 EST

> I've just found a potential issue: In case MTRR is disabled by the BIOS
> the PAT register of the boot processor won't be restored after resume.
> Can you check whether pr_info("MTRR: Disabled\n") has been executed in
> early boot? If yes, this might be a BIOS option.

I don't have access right now. I will test it later tonight (This is my
home machine).

Would $dmesg | grep -i mtrr suffice or I need to look for the mtrr
somewere else e.g. /proc /sys etc?

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