linux-kernel - Re: [regression] 6.8.1 and 6.7.12: fails to hibernate with pm_runtime_force

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Message-ID: <12414153.O9o76ZdvQC@lichtvoll.de>
Date: Fri, 05 Apr 2024 14:11:11 +0200
From: Martin Steigerwald <martin@...htvoll.de>
To: linux-pm@...r.kernel.org, regressions@...ts.linux.dev,
 linux-kernel@...r.kernel.org,
 Linux regressions mailing list <regressions@...ts.linux.dev>
Subject:
 Re: [regression] 6.8.1 and 6.7.12: fails to hibernate with
 pm_runtime_force_suspend+0x0/0x120 returns -16

Martin Steigerwald - 05.04.24, 13:54:34 CEST:
> > Not doing it today or probably the weekend, but now I have some
> > actionable git bisect plan without bisecting between major kernel
> > releases which as I have been told between 6.7 an 6.8-rc1 can lead to
> > non working modeset graphics on AMD Ryzen in between.
> > 
> > It seems now I only need to git bisect between 6.7.11 and 6.7.12 to
> > find the patch that breaks hibernation on 6.8.1 as well. However
> > first I will briefly check whether 6.8.4 hibernates okay.
> 
> 6.8.4 is still affected and fails hibernation with the same error
> message.

Both kernels also fail to reboot the machine. Runit says:

- runit: system reboot

And then nothing anymore.

It is not just hibernation.

I think ThinkPad T14 AMD Gen 1 or similar systems with Linux are not that 
rare. I am surprised this is not hitting more people. Well maybe it does 
and no one reported it here.

Well let's see what happens when 6.7.12 hits distribution kernels.

Anyway, I have an actionable git bisect between 6.7.11 and 6.7.12, just 
not today. Maybe beginning of next week.

-- 
Martin