Hi Sarah, Sorry for my bad English. I meant that even if I leaved the ethernet cable removed, disconnections occured repeatedly. I did not touch the USB cable. It seems not hardware problem since I cannot see a disconnection in Windows. I checked out the ethernet connection's uptime was very long. Regards, Taegil 2014-02-14 8:28 GMT+09:00 Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx>: > On Thu, Feb 13, 2014 at 01:56:42PM +0900, Taegil Bae wrote: >> Hi, >> >> The bugreport on Bugzilla is Bug 70361: >> https://bugzilla.kernel.org/show_bug.cgi?id=70361 >> >> I have a Thinkpad OneLink dock, which is a USB dock and has a USB 3.0 >> hub, a USB 2.0 hub, and ax88179 ethernet. >> This dock's USB 3.0 hub is disconnected for no reason. >> This occurs even when the ethernet cable is pulled out from the dock. >> The port in the following is Bus02-Port 3. > > Hi Taegil, > > It sounds like you have some buggy hardware. If the device disconnects > when the ethernet cable is removed, software really can't do much about > that. Your logs show the host reports a disconnect on the roothub, > which means the whole dock disconnected. > > Could you be pulling on the USB 3.0 cable when you remove the ethernet > cable? Maybe it's just a bad connection? > > Sarah Sharp > >> $ lsusb -t >> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M >> |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M >> |__ Port 7: Dev 3, If 0, Class=Human Interface Device, >> Driver=usbhid, 12M >> |__ Port 8: Dev 4, If 0, Class=Human Interface Device, Driver=wacom, 12M >> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M >> |__ Port 3: Dev 38, If 0, Class=Hub, Driver=hub/4p, 5000M >> |__ Port 1: Dev 39, If 0, Class=Vendor Specific Class, >> Driver=ax88179_178a, 5000M >> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/9p, 480M >> |__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M >> |__ Port 2: Dev 6, If 0, Class=Hub, Driver=hub/4p, 480M >> |__ Port 1: Dev 7, If 0, Class=Audio, Driver=snd-usb-audio, 12M >> |__ Port 1: Dev 7, If 1, Class=Audio, Driver=snd-usb-audio, 12M >> |__ Port 1: Dev 7, If 2, Class=Audio, Driver=snd-usb-audio, 12M >> |__ Port 1: Dev 7, If 3, Class=Human Interface Device, >> Driver=usbhid, 12M >> |__ Port 3: Dev 8, If 0, Class=Hub, Driver=hub/4p, 480M >> |__ Port 2: Dev 9, If 0, Class=Hub, Driver=hub/3p, 480M >> |__ Port 1: Dev 10, If 0, Class=Human Interface >> Device, Driver=usbhid, 12M >> |__ Port 4: Dev 17, If 0, Class=Wireless, Driver=btusb, 12M >> |__ Port 4: Dev 17, If 1, Class=Wireless, Driver=btusb, 12M >> |__ Port 5: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M >> |__ Port 6: Dev 5, If 0, Class=Video, Driver=uvcvideo, 480M >> |__ Port 6: Dev 5, If 1, Class=Video, Driver=uvcvideo, 480M >> >> >> Part of dmesg output: >> [ +3.072696] xhci_hcd 0000:00:14.0: ep 0x82 - asked for 26624 bytes, >> 26392 bytes untransferred >> [ +2.970278] xhci_hcd 0000:00:14.0: ep 0x82 - asked for 26624 bytes, >> 26392 bytes untransferred >> [ +3.072701] xhci_hcd 0000:00:14.0: ep 0x82 - asked for 26624 bytes, >> 26392 bytes untransferred >> [ +3.072771] xhci_hcd 0000:00:14.0: ep 0x82 - asked for 26624 bytes, >> 26392 bytes untransferred >> [ +2.970205] xhci_hcd 0000:00:14.0: ep 0x82 - asked for 26624 bytes, >> 26392 bytes untransferred >> [ +3.072695] xhci_hcd 0000:00:14.0: ep 0x82 - asked for 26624 bytes, >> 26392 bytes untransferred >> [ +1.739580] xhci_hcd 0000:00:14.0: Port Status Change Event for port 12 >> [ +0.000012] xhci_hcd 0000:00:14.0: handle_port_status: starting port polling. >> [ +0.000084] hub 2-0:1.0: state 7 ports 4 chg 0000 evt 0008 >> [ +0.000023] xhci_hcd 0000:00:14.0: get port status, actual port 2 >> status = 0x4202c0 >> [ +0.000005] xhci_hcd 0000:00:14.0: Get port status returned 0x4102c0 >> [ +0.000078] xhci_hcd 0000:00:14.0: clear port connect change, actual >> port 2 status = 0x4002c0 >> [ +0.000065] xhci_hcd 0000:00:14.0: clear port link state change, >> actual port 2 status = 0x2c0 >> [ +0.000034] hub 2-0:1.0: warm reset port 3 >> [ +0.021287] xhci_hcd 0000:00:14.0: xhci_hub_status_data: stopping >> port polling. >> [ +0.029993] xhci_hcd 0000:00:14.0: get port status, actual port 2 >> status = 0x2d0 >> [ +0.000009] xhci_hcd 0000:00:14.0: Get port status returned 0x2d0 >> [ +0.000068] hub 2-0:1.0: port 3 not warm reset yet, waiting 50ms >> [ +0.052983] xhci_hcd 0000:00:14.0: Port Status Change Event for port 12 >> [ +0.000012] xhci_hcd 0000:00:14.0: handle_port_status: starting port polling. >> [ +0.000315] xhci_hcd 0000:00:14.0: get port status, actual port 2 >> status = 0x2a1203 >> [ +0.000019] xhci_hcd 0000:00:14.0: Get port status returned 0x310203 >> [ +0.053395] xhci_hcd 0000:00:14.0: clear port reset change, actual >> port 2 status = 0xa1203 >> [ +0.000082] xhci_hcd 0000:00:14.0: clear port warm(BH) reset change, >> actual port 2 status = 0x21203 >> [ +0.000072] xhci_hcd 0000:00:14.0: clear port link state change, >> actual port 2 status = 0x21203 >> [ +0.000072] xhci_hcd 0000:00:14.0: clear port connect change, actual >> port 2 status = 0x1203 >> [ +0.000072] xhci_hcd 0000:00:14.0: get port status, actual port 2 >> status = 0x1203 >> [ +0.000008] xhci_hcd 0000:00:14.0: Get port status returned 0x203 >> [ +0.000065] hub 2-0:1.0: port 3, status 02c0, change 0041, 5.0 Gb/s >> [ +0.000012] usb 2-3: USB disconnect, device number 36 >> [ +0.000006] usb 2-3.1: USB disconnect, device number 37 >> [ +0.000004] usb 2-3.1: unregistering device >> [ +0.000005] usb 2-3.1: unregistering interface 2-3.1:1.0 >> [ +0.000160] usb 2-3.1: Failed to set U1 timeout to 0x0,error code -19 >> [ +0.000007] usb 2-3.1: Hub-initiated U1 disabled at request of >> driver ax88179_178a >> [ +0.000005] usb 2-3.1: Failed to set U1 timeout to 0xff,error code -19 >> [ +0.000005] usb 2-3.1: Hub-initiated U2 disabled at request of >> driver ax88179_178a >> [ +0.000004] usb 2-3.1: Failed to set U2 timeout to 0xff,error code -19 >> [ +0.000006] xhci_hcd 0000:00:14.0: Set up evaluate context for LPM MEL change. >> [ +0.000004] xhci_hcd 0000:00:14.0: Slot 30 Input Context: >> [ +0.000006] xhci_hcd 0000:00:14.0: @ffff8802129c4000 (virt) >> @2129c4000 (dma) 0x000000 - drop flags >> [ +0.000004] xhci_hcd 0000:00:14.0: @ffff8802129c4004 (virt) >> @2129c4004 (dma) 0x000001 - add flags >> [ +0.000005] xhci_hcd 0000:00:14.0: @ffff8802129c4008 (virt) >> @2129c4008 (dma) 0x000000 - rsvd2[0] >> [ +0.000004] xhci_hcd 0000:00:14.0: @ffff8802129c400c (virt) >> @2129c400c (dma) 0x000000 - rsvd2[1] >> [ +0.000004] xhci_hcd 0000:00:14.0: @ffff8802129c4010 (virt) >> @2129c4010 (dma) 0x000000 - rsvd2[2] >> [ +0.000004] xhci_hcd 0000:00:14.0: @ffff8802129c4014 (virt) >> @2129c4014 (dma) 0x000000 - rsvd2[3] >> >> >> Regards, >> >> Taegil >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-usb" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
