Public bug reported: As also reported on the Raspberry Pi bug report: https://github.com/raspberrypi/linux/issues/3981
I'm experiencing this with all 5.x kernels usually within a day or 2 of a restart: Jun 29 20:20:35 tiny-myth kernel: [85834.433030] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr Jun 29 20:20:35 tiny-myth kernel: [85834.433052] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending. Jun 29 20:20:35 tiny-myth kernel: [85834.565209] usb 9-2: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd Jun 29 20:21:06 tiny-myth kernel: [85865.665815] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr Jun 29 20:21:06 tiny-myth kernel: [85865.665838] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending. Jun 29 20:21:06 tiny-myth kernel: [85865.805725] usb 9-2: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd I've rolled back to 4.19 kernel and error did occur once but appears to happen less frequently (running for a few days now and hasn't triggered). This is on a device that's been running fine since 2012 with none of these issues until I upgraded to 20.04 in January 2021, at which point I've had to reboot the device constantly to re-attach to storage. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1934701 Title: external USB drive hangs and unable to recover without hard reset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1934701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs