[Bug 220069] [6.13.9] regression USB controller dies

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220069

--- Comment #28 from Michał Pecio (michal.pecio@gmail.com) ---
Created attachment 308078
  --> https://bugzilla.kernel.org/attachment.cgi?id=308078&action=edit
collect xhc crash data and reset the thing

Could you run this script?

It tries to catch debugfs after the controller hangs, but before the kernel
"kills" it and forgets about all devices. It simply saves debugfs every few
seconds, and packs the saved copy plus current debugfs and dmesg to a tgz
archive when all devices disappear. Then it automatically resets the
controller. Don't disconnect all devices by hand ;)

The outdir and tmpdir paths need to be set to point at existing directories,
and PCI ID is passed as an argument - use lspci to know if it's currently
0000:6a:00.0 or 0000:6b:00.0.


I think it's somehow related to the 7-3/8-3 (USB 2.0/3.0 parts) hub, and its
children - either the 7-3.4/8-3.4 hub or the 7-3.3 webcam. Would it be possible
to move one of those child devices to another place so that it goes to a
different bus? Perhaps bus 5, which is the first 600 chipset controller, so we
could see if the problem moves to the first 600 controller or stays on the
second one.

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