On Mon, 20 Mar 2023 11:26:39 +0200 Mathias Nyman wrote: > This could be related to another case with two xHC controllers, but different vendors. > Bus numbers were interleaved there as well. Removing the asynch probe helped: > > https://lore.kernel.org/linux-usb/d5ff9480-57bd-2c39-8b10-988ad0d14a7e@linux.intel.com/ > > Does reverting: > 4c2604a9a689 usb: xhci-pci: Set PROBE_PREFER_ASYNCHRONOUS > help for you? Ok, reverted 4c2604a9a689 usb: xhci-pci: Set PROBE_PREFER_ASYNCHRONOUS now but unfortunately didn't work out. New dmesg with the reverted commit attached. Regards, Erhard