Copy of the engineering report sent to GEEKOM support. It provides the
current firmware, Linux, driver, and hardware configuration; the exact
failure timeline and TLP; the post-recovery AER storm; and requests
escalation to the A7 Max BIOS/AMD USB4 engineering team.

New evidence after updating the GEEKOM A7 Max to BIOS 1.29 and EC 1.03
is attached. A second untouched reboot reproduced the exact JHL7440 xHCI
Unsupported Request and TLP seen with BIOS 1.26. The initial AER
occurred while AQC113 had valid resources, proving it is separate from
the later 5 MiB bridge-window allocation failure. Full-subtree recovery
restored 10 Gb/s, but the same TLP then repeated approximately once per
second with failed AER recovery. The GEEKOM engineering report has also
been sent to the manufacturer.

** Attachment added: "geekom-engineering-update-bios129-ec103-corrected.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2167202/+attachment/6000463/+files/geekom-engineering-update-bios129-ec103-corrected.txt

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https://bugs.launchpad.net/bugs/2167202

Title:
  thunderbolt/pci JHL7440/AQC113 fails to recover after tunnel
  disconnect; BAR allocation fails

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