[5.12.X] USB controller committing suicide

Hi all,

recently (most probably since switching to 5.12.N) I see USB controller
suicides, with the effect that after that:
$ lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


This is:
* linux 5.12.X (self compiled)
* Debian/unstable

The dmesg contains the following:
[32154.046627] usb 1-6.1.3.3: Manufacturer: Generic
[39494.338571] usb 1-6.1.3.3: reset full-speed USB device number 12 using xhci_hcd
[39509.694530] usb 1-6.1.3.3: device descriptor read/64, error -110
[39525.314664] usb 1-6.1.3.3: device descriptor read/64, error -110
[39525.506685] usb 1-6.1.3.3: reset full-speed USB device number 12 using xhci_hcd
[39540.930840] usb 1-6.1.3.3: device descriptor read/64, error -110
[39556.546966] usb 1-6.1.3.3: device descriptor read/64, error -110
[39556.738973] usb 1-6.1.3.3: reset full-speed USB device number 12 using xhci_hcd
[39561.843025] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
[39567.215047] xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command.
[39567.215053] xhci_hcd 0000:00:14.0: USBSTS:
[39567.215057] xhci_hcd 0000:00:14.0: xHCI host controller not responding, assume dead
[39567.215076] xhci_hcd 0000:00:14.0: HC died; cleaning up
[39567.215091] usb 1-6: USB disconnect, device number 2
[39567.215095] usb 1-6.1: USB disconnect, device number 3
[39567.215097] usb 1-6.1.2: USB disconnect, device number 5
[39567.215117] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
[39567.215405] usb 1-6.1.3: USB disconnect, device number 7
[39567.215409] usb 1-6.1.3.1: USB disconnect, device number 8
[39567.423079] usb 1-6.1.3.3: device not accepting address 12, error -62
[39567.523416] usb 1-6.1.3.2: USB disconnect, device number 11
[39567.643321] usb 1-6.1.3.3: USB disconnect, device number 12
[39567.643551] usb 1-6.1.3.4: USB disconnect, device number 10
[39567.772186] usb 1-6.2: USB disconnect, device number 4
[39567.823671] usb 1-6.4: USB disconnect, device number 6

Looking at the systemlog I see only one more line (between the rest of
the noise):
May 13 09:57:41 bulldog systemd-udevd[669]: 1-6.1.3.3: Worker [1112921] processing SEQNUM=3950 is taking a long time


My questions are:
* is there a way to get the USB devices back (I can log in via ssh)
* how can I debug this?
* known issue?

Thanks and all the best

Norbert

--
PREINING Norbert                              https://www.preining.info
Fujitsu Research  +  IFMGA Guide  +  TU Wien  +  TeX Live  + Debian Dev
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