Re: crash during resume of PCIe bridge from v5.17 to next-20260130 (v5.16 works)

Thomas Gleixner
2026-02-01T16:42:17Z

On Sun, Feb 01 2026 at 01:36, Bert Karwatzki wrote:
> I found the error, the commit
> ("drm/amd: Check if ASPM is enabled from PCIe subsystem")
> has been applied twice first as cba07cce39ac and a second time
> as 7294863a6f01 after it had been superseeded by commit
> 0ab5d711ec74 ("drm/amd: Refactor `amdgpu_aspm` to be evaluated per device")
> This effectively disables ASPM globally after the built-in GPU (which does not
> support ASPM) is probed. This is the reason for the crashes and loss of devices
> errors which on average occur after ~1000 resumes of the discrete GPU.

Wow. Nice detective work...