Public bug reported:
After removing dvb-t usb stick usb subsystem hangs and dmesg shows Call traces.
lsusb hangs so ubuntu-bug hangs also.
No further usb devices are recognised.
Versions:
Linux cubu 2.6.32-18-generic #27-Ubuntu SMP Fri Mar 26 21:13:44 UTC 2010 x86_64
GNU/Linux
Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Description: Ubuntu lucid (development branch)
Release: 10.04
Insert of stick:
[43167.500793] usb 1-7.2: new high speed USB device using ehci_hcd and address 6
[43167.614342] usb 1-7.2: configuration #1 chosen from 1 choice
[43167.699517] dvb-usb: found a 'MSI DIGIVOX Duo' in cold state, will try to
load a firmware
[43167.699529] usb 1-7.2: firmware: requesting dvb-usb-af9015.fw
[43167.707574] dvb-usb: downloading firmware from file 'dvb-usb-af9015.fw'
[43167.775644] dvb-usb: found a 'MSI DIGIVOX Duo' in warm state.
[43167.775730] dvb-usb: will pass the complete MPEG2 transport stream to the
software demuxer.
[43167.776825] DVB: registering new adapter (MSI DIGIVOX Duo)
[43168.153241] af9013: firmware version:4.95.0
[43168.156493] DVB: registering adapter 0 frontend 0 (Afatech AF9013 DVB-T)...
[43168.186332] MXL5005S: Attached at address 0xc6
[43168.186339] dvb-usb: will pass the complete MPEG2 transport stream to the
software demuxer.
[43168.186819] DVB: registering new adapter (MSI DIGIVOX Duo)
[43168.911829] af9013: found a 'Afatech AF9013 DVB-T' in warm state.
[43168.914448] af9013: firmware version:4.95.0
[43168.925831] DVB: registering adapter 1 frontend 0 (Afatech AF9013 DVB-T)...
[43168.926169] MXL5005S: Attached at address 0xc6
[43168.926177] dvb-usb: MSI DIGIVOX Duo successfully initialized and connected.
[43168.935130] usbcore: registered new interface driver dvb_usb_af9015
removal of stick:
[140985.078071] usb 1-7.2: USB disconnect, address 6
[140985.078344] af9015: bulk message failed:-22 (8/-1)
[140985.078351] af9013: I2C read failed reg:d730
[141120.870029] INFO: task khubd:37 blocked for more than 120 seconds.
[141120.870037] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141120.870044] khubd D 00000000ffffffff 0 37 2 0x00000000
[141120.870056] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141120.870066] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141120.870074] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141120.870083] Call Trace:
[141120.870110] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141120.870124] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141120.870136] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141120.870146] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141120.870155] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141120.870165] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141120.870176] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141120.870186] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141120.870193] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141120.870202] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141120.870210] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141120.870217] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141120.870226] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141120.870235] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141120.870244] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141120.870252] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141120.870261] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141120.870269] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141120.870277] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141120.870284] [<ffffffff81084f66>] kthread+0x96/0xa0
[141120.870292] [<ffffffff810141ea>] child_rip+0xa/0x20
[141120.870300] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141120.870306] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[141160.747591] npviewer.bin[13098]: segfault at ff999ea8 ip 00000000ff999ea8
sp 00000000fff5ad6c error 14
[141240.870036] INFO: task khubd:37 blocked for more than 120 seconds.
[141240.870045] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141240.870051] khubd D 00000000ffffffff 0 37 2 0x00000000
[141240.870063] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141240.870073] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141240.870082] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141240.870090] Call Trace:
[141240.870117] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141240.870131] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141240.870143] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141240.870153] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141240.870162] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141240.870172] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141240.870184] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141240.870193] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141240.870200] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141240.870209] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141240.870218] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141240.870224] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141240.870233] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141240.870242] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141240.870251] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141240.870260] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141240.870269] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141240.870276] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141240.870285] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141240.870292] [<ffffffff81084f66>] kthread+0x96/0xa0
[141240.870300] [<ffffffff810141ea>] child_rip+0xa/0x20
[141240.870307] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141240.870314] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[141360.873794] INFO: task khubd:37 blocked for more than 120 seconds.
[141360.873803] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141360.873809] khubd D 00000000ffffffff 0 37 2 0x00000000
[141360.873821] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141360.873831] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141360.873840] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141360.873848] Call Trace:
[141360.873875] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141360.873891] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141360.873904] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141360.873914] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141360.873924] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141360.873933] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141360.873944] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141360.873954] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141360.873961] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141360.873970] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141360.873979] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141360.873986] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141360.873995] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141360.874003] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141360.874012] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141360.874021] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141360.874030] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141360.874037] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141360.874046] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141360.874053] [<ffffffff81084f66>] kthread+0x96/0xa0
[141360.874061] [<ffffffff810141ea>] child_rip+0xa/0x20
[141360.874068] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141360.874074] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[141480.870037] INFO: task khubd:37 blocked for more than 120 seconds.
[141480.870046] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141480.870052] khubd D 00000000ffffffff 0 37 2 0x00000000
[141480.870064] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141480.870074] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141480.870082] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141480.870091] Call Trace:
[141480.870118] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141480.870133] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141480.870145] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141480.870154] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141480.870164] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141480.870173] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141480.870184] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141480.870194] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141480.870201] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141480.870210] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141480.870218] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141480.870225] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141480.870234] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141480.870243] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141480.870252] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141480.870261] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141480.870269] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141480.870277] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141480.870285] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141480.870292] [<ffffffff81084f66>] kthread+0x96/0xa0
[141480.870302] [<ffffffff810141ea>] child_rip+0xa/0x20
[141480.870309] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141480.870316] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[141600.880023] INFO: task khubd:37 blocked for more than 120 seconds.
[141600.880031] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141600.880038] khubd D 00000000ffffffff 0 37 2 0x00000000
[141600.880050] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141600.880060] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141600.880069] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141600.880077] Call Trace:
[141600.880105] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141600.880120] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141600.880132] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141600.880141] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141600.880151] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141600.880160] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141600.880171] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141600.880182] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141600.880188] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141600.880197] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141600.880206] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141600.880213] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141600.880222] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141600.880231] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141600.880240] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141600.880248] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141600.880257] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141600.880265] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141600.880274] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141600.880281] [<ffffffff81084f66>] kthread+0x96/0xa0
[141600.880289] [<ffffffff810141ea>] child_rip+0xa/0x20
[141600.880296] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141600.880303] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[141720.871366] INFO: task khubd:37 blocked for more than 120 seconds.
[141720.871374] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141720.871381] khubd D 00000000ffffffff 0 37 2 0x00000000
[141720.871392] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141720.871402] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141720.871411] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141720.871419] Call Trace:
[141720.871446] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141720.871460] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141720.871472] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141720.871481] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141720.871491] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141720.871501] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141720.871513] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141720.871523] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141720.871529] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141720.871538] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141720.871547] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141720.871553] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141720.871562] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141720.871571] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141720.871580] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141720.871589] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141720.871598] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141720.871606] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141720.871614] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141720.871621] [<ffffffff81084f66>] kthread+0x96/0xa0
[141720.871629] [<ffffffff810141ea>] child_rip+0xa/0x20
[141720.871636] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141720.871642] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[141752.605210] npviewer.bin[13509]: segfault at ff999ea8 ip 00000000ff999ea8
sp 00000000ffe8b7fc error 14
[141840.870022] INFO: task khubd:37 blocked for more than 120 seconds.
[141840.870027] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141840.870030] khubd D 00000000ffffffff 0 37 2 0x00000000
[141840.870037] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141840.870043] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141840.870047] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141840.870051] Call Trace:
[141840.870068] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141840.870077] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141840.870083] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141840.870088] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141840.870093] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141840.870098] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141840.870105] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141840.870110] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141840.870113] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141840.870118] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141840.870123] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141840.870126] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141840.870131] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141840.870135] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141840.870140] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141840.870145] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141840.870149] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141840.870153] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141840.870157] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141840.870161] [<ffffffff81084f66>] kthread+0x96/0xa0
[141840.870165] [<ffffffff810141ea>] child_rip+0xa/0x20
[141840.870169] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141840.870172] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[141960.870045] INFO: task khubd:37 blocked for more than 120 seconds.
[141960.870053] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[141960.870060] khubd D 00000000ffffffff 0 37 2 0x00000000
[141960.870078] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[141960.870090] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[141960.870098] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[141960.870107] Call Trace:
[141960.870133] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[141960.870147] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141960.870161] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[141960.870171] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[141960.870180] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[141960.870190] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[141960.870201] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[141960.870211] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[141960.870218] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[141960.870227] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[141960.870235] [<ffffffff813658f7>] device_del+0x127/0x1d0
[141960.870242] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[141960.870251] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[141960.870259] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[141960.870269] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[141960.870277] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[141960.870286] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[141960.870294] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[141960.870302] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[141960.870309] [<ffffffff81084f66>] kthread+0x96/0xa0
[141960.870317] [<ffffffff810141ea>] child_rip+0xa/0x20
[141960.870324] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[141960.870330] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[142080.870043] INFO: task khubd:37 blocked for more than 120 seconds.
[142080.870051] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[142080.870058] khubd D 00000000ffffffff 0 37 2 0x00000000
[142080.870070] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[142080.870080] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[142080.870089] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[142080.870098] Call Trace:
[142080.870125] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[142080.870139] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[142080.870151] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[142080.870161] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[142080.870170] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[142080.870180] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[142080.870191] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[142080.870201] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[142080.870207] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[142080.870216] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[142080.870225] [<ffffffff813658f7>] device_del+0x127/0x1d0
[142080.870232] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[142080.870240] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[142080.870249] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[142080.870258] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[142080.870268] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[142080.870276] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[142080.870284] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[142080.870292] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[142080.870299] [<ffffffff81084f66>] kthread+0x96/0xa0
[142080.870307] [<ffffffff810141ea>] child_rip+0xa/0x20
[142080.870315] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[142080.870321] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[142200.870031] INFO: task khubd:37 blocked for more than 120 seconds.
[142200.870040] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[142200.870046] khubd D 00000000ffffffff 0 37 2 0x00000000
[142200.870058] ffff880235c09ab0 0000000000000046 0000000000015b80
0000000000015b80
[142200.870068] ffff880235c04890 ffff880235c09fd8 0000000000015b80
ffff880235c044d0
[142200.870077] 0000000000015b80 ffff880235c09fd8 0000000000015b80
ffff880235c04890
[142200.870086] Call Trace:
[142200.870112] [<ffffffffa04dcd45>] dvb_unregister_frontend+0xc5/0x110
[dvb_core]
[142200.870126] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[142200.870139] [<ffffffffa04fa0e2>] dvb_usb_adapter_frontend_exit+0x22/0x40
[dvb_usb]
[142200.870149] [<ffffffffa04f94b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb]
[142200.870159] [<ffffffffa04f9579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb]
[142200.870168] [<ffffffffa0500051>] af9015_usb_device_exit+0x41/0x60
[dvb_usb_af9015]
[142200.870180] [<ffffffff813d8d74>] usb_unbind_interface+0x124/0x170
[142200.870189] [<ffffffff8136860f>] __device_release_driver+0x6f/0xe0
[142200.870196] [<ffffffff8136877d>] device_release_driver+0x2d/0x40
[142200.870205] [<ffffffff8136779a>] bus_remove_device+0x9a/0xc0
[142200.870213] [<ffffffff813658f7>] device_del+0x127/0x1d0
[142200.870220] [<ffffffff813d5538>] usb_disable_device+0xa8/0x130
[142200.870228] [<ffffffff813cf2d2>] usb_disconnect+0xd2/0x170
[142200.870237] [<ffffffff813cf94f>] hub_port_connect_change+0x8f/0x980
[142200.870246] [<ffffffff813d0c42>] hub_events+0x3b2/0x5a0
[142200.870255] [<ffffffff8153e238>] ? thread_return+0x48/0x420
[142200.870263] [<ffffffff813d0e85>] hub_thread+0x55/0x190
[142200.870271] [<ffffffff810852e0>] ? autoremove_wake_function+0x0/0x40
[142200.870280] [<ffffffff813d0e30>] ? hub_thread+0x0/0x190
[142200.870287] [<ffffffff81084f66>] kthread+0x96/0xa0
[142200.870295] [<ffffffff810141ea>] child_rip+0xa/0x20
[142200.870302] [<ffffffff81084ed0>] ? kthread+0x0/0xa0
[142200.870316] [<ffffffff810141e0>] ? child_rip+0x0/0x20
Modules did not remove:
Module Size Used by
mxl5005s 38780 2
af9013 21954 2
dvb_usb_af9015 30239 2
dvb_usb 16709 1 dvb_usb_af9015
dvb_core 102929 1 dvb_usb
usbhid 40988 0
snd_usb_audio 92747 0
hid 83280 1 usbhid
snd_usb_lib 18978 1 snd_usb_audio
nls_utf8 1421 1
isofs 33399 1
snd_hda_codec_atihdmi 3023 1
snd_hda_codec_analog 78702 1
binfmt_misc 7960 1
vboxnetadp 5235 0
vboxnetflt 12242 0
vboxdrv 1768247 2 vboxnetadp,vboxnetflt
fbcon 39270 71
tileblit 2487 1 fbcon
font 8053 1 fbcon
bitblit 5811 1 fbcon
softcursor 1565 1 bitblit
vga16fb 12757 0
vgastate 9857 1 vga16fb
snd_hda_intel 25517 4
snd_hda_codec 85727 3
snd_hda_codec_atihdmi,snd_hda_codec_analog,snd_hda_intel
snd_hwdep 6924 2 snd_usb_audio,snd_hda_codec
snd_pcm_oss 41394 0
snd_mixer_oss 16299 1 snd_pcm_oss
snd_pcm 87850 5
snd_usb_audio,snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_dummy 1782 0
snd_seq_oss 31219 0
snd_seq_midi 5829 0
snd_rawmidi 23388 2 snd_usb_lib,snd_seq_midi
snd_seq_midi_event 7267 2 snd_seq_oss,snd_seq_midi
snd_seq 57417 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 23553 2 snd_pcm,snd_seq
ppdev 6375 0
snd_seq_device 6824 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
radeon 738855 3
snd 70978 20
snd_usb_audio,snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
psmouse 64288 0
parport_pc 30118 1
ttm 60815 1 radeon
drm_kms_helper 30710 1 radeon
edac_core 45423 0
soundcore 8052 1 snd
edac_mce_amd 9182 0
serio_raw 4918 0
snd_page_alloc 8660 2 snd_hda_intel,snd_pcm
drm 198962 5 radeon,ttm,drm_kms_helper
i2c_algo_bit 6024 1 radeon
asus_atk0110 10033 0
i2c_nforce2 6099 0
lp 9336 0
parport 37160 3 ppdev,parport_pc,lp
ohci1394 30548 0
usb_storage 49833 0
ahci 37550 0
pata_jmicron 2747 0
ieee1394 94798 1 ohci1394
sata_nv 23778 4
forcedeth 55988 0
pata_amd 11962 1
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
After removing dvb-t usb stick (MSI Digivox duo, af9015 based)usb subsystem
hangs
https://bugs.launchpad.net/bugs/558532
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