Re: kernel panic when resuming from hibernate in next-20260406 with PREEMPT_RT
From: Bert Karwatzki
Date: Sun Apr 26 2026 - 04:29:34 EST
Am Freitag, dem 10.04.2026 um 13:20 +0000 schrieb Ostrowski, Rafal:
> Hi Bert,
>
> I identified root cause of problem. I had to do modifications to mentioned patches to work well with PREEMPT_RT enabled. I tested it on my local machine and it seems to fix the problem. Now it has to go through internal processes. I will let you know if I know when fix will be available to you.
>
> Kind Regards,
> Rafal Ostrowski
So it seems that commit
8bf0cb97edb6 ("drm/amd/display: Move dml2_destroy to non-FPU compilation unit")
is the commit that fixes the issue, but is missing the appropriate tags:
Reported-By: Bert Karwatzki <spasswolf@xxxxxx>
Fixes: 3539437f354b ("drm/amd/display: Move FPU Guards From DML To DC - Part 3")
Please fix this.
Bert Karwatzki