Hello, On Mon, 2018-07-23 at 10:12 +0300, Alexey Brodkin wrote: > Hello, > > I use Dell 7480 laptop connected to Dell TB16 Thunderbolt docking station. > Once in a while when USB device gets connected to Dell TB16 dock its xHCI controller "dies". > To recover its functionality it's required to reconnect Thunderbolt cable. > > What's interesting video output to external monitor connected to the same one dock works all the time flawlessly. > > Version-Release number of selected component (if applicable): > Currently I'm on Fedora-28 with kernel 4.17.3-200.fc28.x86_64 but that issues has been seen from the very beginning > (cannot recall exact kernel version I started from with that laptop, I guess it was 4.14.y or 4.15.y). > > How reproducible: > Once in a while, i.e. not on every connection of USB device but pretty often. Like every 10th time. > > Steps to Reproduce: > 1. Plug-in USB device (could be anything like FTDI USB-to-Serial cable, smartphone, anything)repeat. > > 2. Wait for at least a minute (for USB device gets recognized and if xHCI controller stops to respond kernel will disable it which will be visible > if > there's something like mouse/keyboard/audiocard is connected to the dock as well - so it will stop to work) > > 3. If nothing happens - unplug and repeat from (1). > > Actual results: > In dmesg the following will appear: > ----------------------------------->8-------------------------------- > [ 6163.713341] usb 3-1.3: new high-speed USB device number 9 using xhci_hcd > [ 6169.421418] usb 3-1.3: device descriptor read/all, error -110 > [ 6175.966362] xhci_hcd 0000:0b:00.0: xHCI host not responding to stop endpoint command. > [ 6176.057213] xhci_hcd 0000:0b:00.0: Host halt failed, -110 > [ 6176.057214] xhci_hcd 0000:0b:00.0: xHCI host controller not responding, assume dead > [ 6176.057224] r8152 4-1.1:1.0 enp11s0u1u1: Stop submitting intr, status -108 > [ 6176.057227] r8152 4-1.2:1.0 enp11s0u1u2: Stop submitting intr, status -108 > [ 6176.057235] xhci_hcd 0000:0b:00.0: HC died; cleaning up > [ 6176.057300] usb 3-1-port3: cannot disable (err = -110) > [ 6176.057332] usb 3-1-port3: couldn't allocate usb_device > [ 6176.057338] usb 3-1.5: USB disconnect, device number 3 > [ 6176.057386] usb 3-1: USB disconnect, device number 2 > [ 6176.057713] usb 4-1: USB disconnect, device number 2 > [ 6176.057715] usb 4-1.1: USB disconnect, device number 3 > [ 6176.058335] usb 3-1.7: USB disconnect, device number 4 > [ 6176.058336] usb 3-1.7.1: USB disconnect, device number 5 > [ 6176.080309] usb 4-1.2: USB disconnect, device number 4 > [ 6176.080776] usb 3-1.7.3: USB disconnect, device number 6 > [ 6176.105211] usb 3-1.7.4: USB disconnect, device number 8 > ----------------------------------->8-------------------------------- Maybe I sent previous email a bit too soon as there's already a fix from Mathias [1] in Linus' tree. Once it gets back-ported to 4.17.y branch and corresponding kernel update hits Fedora's repos we'll see if it makes any difference. Sorry for the noise though. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=229bc19fd7aca4f37964af06e3583c1c8f36b5d6 -Alexey��.n��������+%������w��{.n�����{���)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
