Bug#1111184: linux: Kernel panic on boot with amdgpu driver

[Salvatore Bonaccorso <carnil@debian.org>]

Hi,

On Wed, Aug 20, 2025 at 08:05:48PM +0300, Руслан Семченко wrote:
> Hello again,
> I have completed the bisection tests as you suggested. Here are the
> final results:
> The 6.13.5-1~exp1 kernel is GOOD. The system boots normally, and the
> kernel panic does not occur.
> The 6.13~rc6-1~exp1 kernel is BAD. The system fails to boot and
> exhibits a kernel panic. I've attached the full dmesg log for this
> test.
> 
> The panic appears to be a stack trace related to the CPU scheduler,
> but the log also shows activity from the amdgpu driver, indicating the
> underlying issue is still present.
> 
> This indicates that the fix for the initial amdgpu problem was
> introduced between the 6.13~rc6 and 6.13.5 kernel versions. I have
> completed all requested tests and hope this information is helpful in
> narrowing down the problematic commit. Best regards, Ruslan Semchenko

Thanks for your testing and narrowing down more the range. There are
still versions to test though in the above:

	6.13.5-1~exp1
	6.13.4-1~exp1
	6.13.3-1~exp1
	6.13.2-1~exp1
	6.13~rc7-1~exp1
	6.13~rc6-1~exp1

Once we have the two closer versions, you can use the previous
outlined instructions to do as well the upstream versions bisect
further, let me though know if you need help/clearer instructions
there if needed.

Let's first though closer to the testing range by testing above
versions.

Regards,
Salvatore