Re: [PATCH RFC] x86/cpu: fix intermittent lockup on poweroff
From: Borislav Petkov
Date: Tue Apr 25 2023 - 15:40:17 EST
On Tue, Apr 25, 2023 at 03:26:53PM -0400, Tony Battersby wrote:
> In stop_this_cpu(), make sure the CPUID leaf exists before accessing the
> leaf. This fixes a lockup on poweroff 50% of the time due to the wrong
> branch being taken randomly on some CPUs (seen on Supermicro X8DTH-6F
> with Intel Xeon X5650).
Please send the output of
cpuid -r
from that machine.
Thx.
--
Regards/Gruss,
Boris.
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