xhci_hcd 0000:06:00.0: xHCI Host Controller [ 174.427582] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 1 [ 174.552030] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 174.552036] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 174.552040] usb usb1: Product: xHCI Host Controller [ 174.552044] usb usb1: Manufacturer: Linux 3.19.0-18-generic xhci-hcd [ 174.552047] usb usb1: SerialNumber: 0000:06:00.0 [ 174.552415] hub 1-0:1.0: USB hub found [ 174.552437] hub 1-0:1.0: 4 ports detected [ 174.562718] xhci_hcd 0000:06:00.0: xHCI Host Controller [ 174.562730] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 2 [ 174.562841] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 [ 174.562844] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 174.562846] usb usb2: Product: xHCI Host Controller [ 174.562848] usb usb2: Manufacturer: Linux 3.19.0-18-generic xhci-hcd [ 174.562851] usb usb2: SerialNumber: 0000:06:00.0 [ 174.563231] hub 2-0:1.0: USB hub found [ 174.563248] hub 2-0:1.0: 4 ports detected [ 174.862907] usb 1-2: new full-speed USB device number 2 using xhci_hcd [ 174.875767] usb 2-3: new SuperSpeed USB device number 2 using xhci_hcd [ 174.897876] usb 2-3: New USB device found, idVendor=174c, idProduct=55aa [ 174.897882] usb 2-3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 174.897889] usb 2-3: Product: ASMEDIA [ 174.897892] usb 2-3: Manufacturer: 01234567890123456789012345678901234567890123 [ 174.897896] usb 2-3: SerialNumber: 32107B00000000000015 [ 174.899937] usb-storage 2-3:1.0: USB Mass Storage device detected [ 174.900318] usb-storage 2-3:1.0: Quirks match for vid 174c pid 55aa: 400000 [ 174.900511] scsi host7: usb-storage 2-3:1.0 [ 175.063023] usb 1-2: New USB device found, idVendor=045e, idProduct=028e [ 175.063030] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 175.063034] usb 1-2: Product: Controller [ 175.063037] usb 1-2: Manufacturer: ©Microsoft Corporation [ 175.063041] usb 1-2: SerialNumber: 07BD298 [ 175.068224] input: Microsoft X-Box 360 pad as /devices/pci0000:00/0000:00:1c.0/0000:06:00.0/usb1/1-2/1-2:1.0/input/input24 [ 175.900722] scsi 7:0:0:0: Direct-Access ASMT 2105 0 PQ: 0 ANSI: 6 [ 175.901807] sd 7:0:0:0: Attached scsi generic sg3 type 0 [ 175.902102] sd 7:0:0:0: [sdc] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) [ 175.902107] sd 7:0:0:0: [sdc] 4096-byte physical blocks [ 175.904539] sd 7:0:0:0: [sdc] Write Protect is off [ 175.904545] sd 7:0:0:0: [sdc] Mode Sense: 43 00 00 00 [ 175.905827] sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 175.909131] sdc: sdc1 [ 175.912576] sd 7:0:0:0: [sdc] Attached SCSI disk [ 206.578875] xhci_hcd 0000:06:00.0: remove, state 1 [ 206.578886] usb usb2: USB disconnect, device number 1 [ 206.578889] usb 2-3: USB disconnect, device number 2 [ 206.580657] sd 7:0:0:0: [sdc] Synchronizing SCSI cache [ 206.580702] sd 7:0:0:0: [sdc] Synchronize Cache(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 206.620350] xhci_hcd 0000:06:00.0: USB bus 2 deregistered [ 206.620374] xhci_hcd 0000:06:00.0: remove, state 1 [ 206.620381] usb usb1: USB disconnect, device number 1 [ 206.620384] usb 1-2: USB disconnect, device number 2 [ 206.774738] xhci_hcd 0000:06:00.0: USB bus 1 deregistered [ 207.786308] xhci_hcd 0000:06:00.0: xHCI Host Controller [ 207.786318] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 1 [ 207.910746] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 207.910752] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 binding driver [ 207.910756] usb usb1: Product: xHCI Host Controller [ 207.910760] usb usb1: Manufacturer: Linux 3.19.0-18-generic xhci-hcd [ 207.910763] usb usb1: SerialNumber: 0000:06:00.0 [ 207.911084] hub 1-0:1.0: USB hub found [ 207.911104] hub 1-0:1.0: 4 ports detected [ 207.920408] xhci_hcd 0000:06:00.0: xHCI Host Controller [ 207.920418] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 2 [ 207.920528] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 [ 207.920531] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 207.920534] usb usb2: Product: xHCI Host Controller [ 207.920536] usb usb2: Manufacturer: Linux 3.19.0-18-generic xhci-hcd [ 207.920541] usb usb2: SerialNumber: 0000:06:00.0 [ 207.920870] hub 2-0:1.0: USB hub found [ 207.920891] hub 2-0:1.0: 4 ports detected [ 208.220464] usb 1-2: new full-speed USB device number 2 using xhci_hcd [ 208.233076] usb 2-3: new SuperSpeed USB device number 2 using xhci_hcd [ 208.254748] usb 2-3: New USB device found, idVendor=174c, idProduct=55aa [ 208.254755] usb 2-3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 208.254759] usb 2-3: Product: ASMEDIA [ 208.254763] usb 2-3: Manufacturer: 01234567890123456789012345678901234567890123 [ 208.254766] usb 2-3: SerialNumber: 32107B00000000000015 [ 208.256635] usb-storage 2-3:1.0: USB Mass Storage device detected [ 208.257128] usb-storage 2-3:1.0: Quirks match for vid 174c pid 55aa: 400000 [ 208.257334] scsi host8: usb-storage 2-3:1.0 [ 208.420655] usb 1-2: New USB device found, idVendor=045e, idProduct=028e [ 208.420662] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 208.420666] usb 1-2: Product: Controller [ 208.420670] usb 1-2: Manufacturer: ©Microsoft Corporation [ 208.420673] usb 1-2: SerialNumber: 07BD298 [ 208.425875] input: Microsoft X-Box 360 pad as /devices/pci0000:00/0000:00:1c.0/0000:06:00.0/usb1/1-2/1-2:1.0/input/input25 [ 209.258089] scsi 8:0:0:0: Direct-Access ASMT 2105 0 PQ: 0 ANSI: 6 [ 209.258525] sd 8:0:0:0: Attached scsi generic sg3 type 0 [ 209.258755] sd 8:0:0:0: [sdc] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) [ 209.258760] sd 8:0:0:0: [sdc] 4096-byte physical blocks [ 209.260031] sd 8:0:0:0: [sdc] Write Protect is off [ 209.260037] sd 8:0:0:0: [sdc] Mode Sense: 43 00 00 00 [ 209.261540] sd 8:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 209.264798] sdc: sdc1 [ 209.268007] sd 8:0:0:0: [sdc] Attached SCSI disk [ 323.967760] xhci_hcd 0000:06:00.0: remove, state 1 [ 323.967767] usb usb2: USB disconnect, device number 1 [ 323.967769] usb 2-3: USB disconnect, device number 2 [ 323.969218] sd 8:0:0:0: [sdc] Synchronizing SCSI cache [ 323.969261] sd 8:0:0:0: [sdc] Synchronize Cache(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 324.014189] xhci_hcd 0000:06:00.0: USB bus 2 deregistered [ 324.014213] xhci_hcd 0000:06:00.0: remove, state 1 [ 324.014220] usb usb1: USB disconnect, device number 1 [ 324.014223] usb 1-2: USB disconnect, device number 2 [ 324.165981] xhci_hcd 0000:06:00.0: USB bus 1 deregistered [ 325.177747] xhci_hcd 0000:06:00.0: xHCI Host Controller [ 325.177760] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 1 [ 325.302241] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 325.302247] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 325.302251] usb usb1: Product: xHCI Host Controller [ 325.302254] usb usb1: Manufacturer: Linux 3.19.0-18-generic xhci-hcd [ 325.302257] usb usb1: SerialNumber: 0000:06:00.0 [ 325.302593] hub 1-0:1.0: USB hub found [ 325.302612] hub 1-0:1.0: 4 ports detected [ 325.310064] xhci_hcd 0000:06:00.0: xHCI Host Controller [ 325.310252] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 2 [ 325.310329] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 [ 325.310333] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 325.310336] usb usb2: Product: xHCI Host Controller [ 325.310339] usb usb2: Manufacturer: Linux 3.19.0-18-generic xhci-hcd [ 325.310342] usb usb2: SerialNumber: 0000:06:00.0 [ 325.310630] hub 2-0:1.0: USB hub found [ 325.310652] hub 2-0:1.0: 4 ports detected [ 398.157748] xhci_hcd 0000:06:00.0: remove, state 1 [ 398.157759] usb usb2: USB disconnect, device number 1 [ 480.493708] INFO: task kworker/0:1:49 blocked for more than 120 seconds. [ 480.493715] Tainted: G I 3.19.0-18-generic #18-Ubuntu [ 480.493716] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 480.493719] kworker/0:1 D ffff880215ffba98 0 49 2 0x00000000 [ 480.493730] Workqueue: usb_hub_wq hub_event [ 480.493732] ffff880215ffba98 ffff880215ff0000 0000000000014200 ffff880215ffbfd8 [ 480.493736] 0000000000014200 ffffffff81c1a580 ffff880215ff0000 ffff880215ffbb18 [ 480.493739] ffff880035b46148 7fffffffffffffff ffff880035b46140 ffff880215ff0000 [ 480.493743] Call Trace: [ 480.493751] [] schedule+0x29/0x70 [ 480.493756] [] schedule_timeout+0x20c/0x280 [ 480.493761] [] ? internal_add_timer+0x80/0x80 [ 480.493765] [] ? lock_timer_base.isra.36+0x2b/0x50 [ 480.493768] [] ? internal_add_timer+0x63/0x80 [ 480.493771] [] ? mod_timer+0x129/0x1f0 [ 480.493776] [] wait_for_completion+0xa4/0x170 [ 480.493780] [] ? wake_up_state+0x20/0x20 [ 480.493785] [] xhci_alloc_dev+0xbd/0x270 [ 480.493789] [] usb_alloc_dev+0x73/0x320 [ 480.493792] [] hub_port_connect+0x216/0xa50 [ 480.493796] [] port_event+0x344/0x7e0 [ 480.493800] [] hub_event+0x20d/0x400 [ 480.493804] [] process_one_work+0x158/0x430 [ 480.493808] [] worker_thread+0x5b/0x530 [ 480.493811] [] ? rescuer_thread+0x3a0/0x3a0 [ 480.493815] [] kthread+0xc9/0xe0 [ 480.493820] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 480.493824] [] ret_from_fork+0x58/0x90 [ 480.493828] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 480.493835] INFO: task kworker/1:2:284 blocked for more than 120 seconds. [ 480.493838] Tainted: G I 3.19.0-18-generic #18-Ubuntu [ 480.493839] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 480.493841] kworker/1:2 D ffff880212a3ba98 0 284 2 0x00000000 [ 480.493847] Workqueue: usb_hub_wq hub_event [ 480.493849] ffff880212a3ba98 ffff880035cb3110 0000000000014200 ffff880212a3bfd8 [ 480.493852] 0000000000014200 ffff8802162275c0 ffff880035cb3110 ffff880212a3bb18 [ 480.493855] ffff880035b46148 7fffffffffffffff ffff880035b46140 ffff880035cb3110 [ 480.493859] Call Trace: [ 480.493863] [] schedule+0x29/0x70 [ 480.493867] [] schedule_timeout+0x20c/0x280 [ 480.493870] [] ? internal_add_timer+0x80/0x80 [ 480.493876] [] ? kmem_cache_alloc_trace+0x1d2/0x200 ... and so on for pages.