hello, What is status of this bug?
What more information is required? We hit that same bug on our system. This seems to be related with: http://bugzilla.kernel.org/show_bug.cgi?id=13316 According other report in internet this seems to be unrelated with that same device nor with kernel version. This seems to be fundamental bug in USB subsystem. I think this is related with URB packet which wasn't completed becaouse device is lost, but khubd still waiting for completion responce. Jun 14 06:25:01 host kernel: imklog 3.18.6, log source = /proc/kmsg started. Jun 15 06:25:01 host kernel: imklog 3.18.6, log source = /proc/kmsg started. Jun 16 00:36:55 host kernel: [600606.885265] usb 6-1: USB disconnect, address 3 Jun 16 00:39:02 host kernel: [600738.152638] INFO: task khubd:271 blocked for more than 120 seconds. Jun 16 00:39:02 host kernel: [600738.152682] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jun 16 00:39:02 host kernel: [600738.155993] khubd D ffff810916ca1400 0 271 2 Jun 16 00:39:02 host kernel: [600738.156038] ffff810919523d50 0000000000000046 363030365b3e363c 36323538382e3630 Jun 16 00:39:02 host kernel: [600738.156118] ffff810919521470 ffff810916dad220 ffff8109195216f8 00000000a00745a2 Jun 16 00:39:02 host kernel: [600738.156197] ffff810919523da4 ffff810916ca1600 0000000000000286 ffff8109148851c0 Jun 16 00:39:02 host kernel: [600738.156245] Call Trace: Jun 16 00:39:02 host kernel: [600738.156308] [<ffffffff8039035a>] usb_kill_urb+0xa8/0xdb Jun 16 00:39:02 host kernel: [600738.156612] [<ffffffff80246111>] autoremove_wake_function+0x0/0x2e Jun 16 00:39:02 host kernel: [600738.156660] [<ffffffff8038fa32>] usb_hcd_flush_endpoint+0xd4/0xeb Jun 16 00:39:02 host kernel: [600738.156707] [<ffffffff80390a8e>] usb_disable_endpoint+0x5b/0x6d Jun 16 00:39:02 host kernel: [600738.156752] [<ffffffff80390ac5>] usb_disable_device+0x25/0xe8 Jun 16 00:39:02 host kernel: [600738.156792] [<ffffffff8038c9cd>] usb_disconnect+0x92/0x142 Jun 16 00:39:02 host kernel: [600738.156830] [<ffffffff8038dc07>] hub_thread+0x3f9/0xcfd Jun 16 00:39:02 host kernel: [600738.156868] [<ffffffff80246111>] autoremove_wake_function+0x0/0x2e Jun 16 00:39:02 host kernel: [600738.156910] [<ffffffff8038d80e>] hub_thread+0x0/0xcfd Jun 16 00:39:02 host kernel: [600738.156952] [<ffffffff80245feb>] kthread+0x47/0x74 Jun 16 00:39:02 host kernel: [600738.156993] [<ffffffff8023008d>] schedule_tail+0x27/0x5c Jun 16 00:39:02 host kernel: [600738.157036] [<ffffffff8020cf38>] child_rip+0xa/0x12 Jun 16 00:39:02 host kernel: [600738.157077] [<ffffffff80245fa4>] kthread+0x0/0x74 Jun 16 00:39:02 host kernel: [600738.157116] [<ffffffff8020cf2e>] child_rip+0x0/0x12 Jun 16 00:39:02 host kernel: [600738.157154] device: lsusb -v -d 0403: Bus 004 Device 002: ID 0403:c580 Future Technology Devices International, Ltd Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0403 Future Technology Devices International, Ltd idProduct 0xc580 bcdDevice 1.01 iManufacturer 1 OEM iProduct 2 HID UNIKEY iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 34 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.00 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 32 Report Descriptor: (length is 32) Item(Global): Usage Page, data= [ 0xa0 0xff ] 65440 (null) Item(Local ): Usage, data= [ 0xa2 ] 162 (null) Item(Main ): Collection, data= [ 0x01 ] 1 Application Item(Local ): Usage, data= [ 0xa3 ] 163 (null) Item(Main ): Collection, data= [ 0x03 ] 3 Report Item(Global): Usage Page, data= [ 0xa1 0xff ] 65441 (null) Item(Local ): Usage, data= [ 0xa4 ] 164 (null) Item(Global): Logical Minimum, data= [ 0x81 ] 129 Item(Global): Logical Maximum, data= [ 0x7f ] 127 Item(Global): Physical Minimum, data= [ 0x00 ] 0 Item(Global): Physical Maximum, data= [ 0xff ] 255 Item(Global): Report Size, data= [ 0x08 ] 8 Item(Global): Report Count, data= [ 0x18 ] 24 Item(Main ): Feature, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): End Collection, data=none Item(Main ): End Collection, data=none Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 10 Device Status: 0x0000 (Bus Powered) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
