Hi, I get crashes when I disconnect a dvb-usb-af9015: [54017.407738] usb 2-1.1: USB disconnect, address 9 [54018.685543] usb 2-1.5: USB disconnect, address 8 [54018.685895] af9015: bulk message failed:-22 (8/0) [54018.685901] af9013: I2C read failed reg:d417 [54018.685907] af9015: bulk message failed:-22 (8/0) [54018.685911] af9013: I2C read failed reg:d417 [54018.685915] af9015: bulk message failed:-22 (9/0) [54018.685919] mt2060 I2C write failed [54018.685923] af9015: bulk message failed:-22 (8/-30719) [54018.685927] af9013: I2C read failed reg:d417 [54018.685931] af9015: bulk message failed:-22 (8/-30720) [54018.685934] af9013: I2C read failed reg:d417 [54018.685940] af9015: bulk message failed:-22 (8/-1) [54018.685944] af9013: I2C read failed reg:d730 [54024.625315] sky2 0000:04:00.0: eth0: Link is down [54148.121532] INFO: task khubd:42 blocked for more than 120 seconds. [54148.121537] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [54148.121542] khubd D 00000000ffffffff 0 42 2 0x00000000 [54148.121549] ffff8801270fdb00 0000000000000046 dead000000200200 0000000000015740 [54148.121555] ffff8801270fdfd8 0000000000015740 ffff8801270fdfd8 ffff8801270f5c00 [54148.121561] 0000000000015740 0000000000015740 ffff8801270fdfd8 0000000000015740 [54148.121566] Call Trace: [54148.121578] [<ffffffff8107b7f0>] ? prepare_to_wait+0x60/0x90 [54148.121594] [<ffffffffa123f885>] dvb_unregister_frontend+0xc5/0x110 [dvb_core] [54148.121600] [<ffffffff8107b540>] ? autoremove_wake_function+0x0/0x40 [54148.121607] [<ffffffff8129b6c7>] ? idr_remove+0x187/0x1f0 [54148.121614] [<ffffffffa10be072>] dvb_usb_adapter_frontend_exit+0x22/0x40 [dvb_usb] [54148.121620] [<ffffffffa10bd4b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb] [54148.121627] [<ffffffffa10bd579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb] [54148.121633] [<ffffffffa1253051>] af9015_usb_device_exit+0x41/0x60 [dvb_usb_af9015] [54148.121643] [<ffffffff813c8721>] usb_unbind_interface+0x61/0x190 [54148.121651] [<ffffffff8135512f>] __device_release_driver+0x6f/0xe0 [54148.121656] [<ffffffff8135529d>] device_release_driver+0x2d/0x40 [54148.121662] [<ffffffff813542ba>] bus_remove_device+0x9a/0xc0 [54148.121667] [<ffffffff813523c7>] device_del+0x127/0x1d0 [54148.121672] [<ffffffff813c4d18>] usb_disable_device+0xa8/0x130 [54148.121678] [<ffffffff813be893>] usb_disconnect+0xd3/0x170 [54148.121683] [<ffffffff813bf8ee>] hub_thread+0x50e/0x1260 [54148.121689] [<ffffffff8107b540>] ? autoremove_wake_function+0x0/0x40 [54148.121694] [<ffffffff813bf3e0>] ? hub_thread+0x0/0x1260 [54148.121698] [<ffffffff8107b006>] kthread+0x96/0xa0 [54148.121705] [<ffffffff8100ae64>] kernel_thread_helper+0x4/0x10 [54148.121710] [<ffffffff8107af70>] ? kthread+0x0/0xa0 [54148.121714] [<ffffffff8100ae60>] ? kernel_thread_helper+0x0/0x10 [54267.913317] INFO: task khubd:42 blocked for more than 120 seconds. [54267.913322] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [54267.913327] khubd D 00000000ffffffff 0 42 2 0x00000000 [54267.913333] ffff8801270fdb00 0000000000000046 dead000000200200 0000000000015740 [54267.913340] ffff8801270fdfd8 0000000000015740 ffff8801270fdfd8 ffff8801270f5c00 [54267.913346] 0000000000015740 0000000000015740 ffff8801270fdfd8 0000000000015740 [54267.913351] Call Trace: [54267.913363] [<ffffffff8107b7f0>] ? prepare_to_wait+0x60/0x90 [54267.913378] [<ffffffffa123f885>] dvb_unregister_frontend+0xc5/0x110 [dvb_core] [54267.913384] [<ffffffff8107b540>] ? autoremove_wake_function+0x0/0x40 [54267.913392] [<ffffffff8129b6c7>] ? idr_remove+0x187/0x1f0 [54267.913398] [<ffffffffa10be072>] dvb_usb_adapter_frontend_exit+0x22/0x40 [dvb_usb] [54267.913405] [<ffffffffa10bd4b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb] [54267.913411] [<ffffffffa10bd579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb] [54267.913418] [<ffffffffa1253051>] af9015_usb_device_exit+0x41/0x60 [dvb_usb_af9015] [54267.913427] [<ffffffff813c8721>] usb_unbind_interface+0x61/0x190 [54267.913435] [<ffffffff8135512f>] __device_release_driver+0x6f/0xe0 [54267.913441] [<ffffffff8135529d>] device_release_driver+0x2d/0x40 [54267.913446] [<ffffffff813542ba>] bus_remove_device+0x9a/0xc0 [54267.913451] [<ffffffff813523c7>] device_del+0x127/0x1d0 [54267.913457] [<ffffffff813c4d18>] usb_disable_device+0xa8/0x130 [54267.913462] [<ffffffff813be893>] usb_disconnect+0xd3/0x170 [54267.913467] [<ffffffff813bf8ee>] hub_thread+0x50e/0x1260 [54267.913473] [<ffffffff8107b540>] ? autoremove_wake_function+0x0/0x40 [54267.913478] [<ffffffff813bf3e0>] ? hub_thread+0x0/0x1260 [54267.913483] [<ffffffff8107b006>] kthread+0x96/0xa0 [54267.913490] [<ffffffff8100ae64>] kernel_thread_helper+0x4/0x10 [54267.913494] [<ffffffff8107af70>] ? kthread+0x0/0xa0 [54267.913499] [<ffffffff8100ae60>] ? kernel_thread_helper+0x0/0x10 [54387.706298] INFO: task khubd:42 blocked for more than 120 seconds. [54387.706304] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [54387.706308] khubd D 00000000ffffffff 0 42 2 0x00000000 [54387.706315] ffff8801270fdb00 0000000000000046 dead000000200200 0000000000015740 [54387.706321] ffff8801270fdfd8 0000000000015740 ffff8801270fdfd8 ffff8801270f5c00 [54387.706327] 0000000000015740 0000000000015740 ffff8801270fdfd8 0000000000015740 [54387.706333] Call Trace: [54387.706344] [<ffffffff8107b7f0>] ? prepare_to_wait+0x60/0x90 [54387.706360] [<ffffffffa123f885>] dvb_unregister_frontend+0xc5/0x110 [dvb_core] [54387.706366] [<ffffffff8107b540>] ? autoremove_wake_function+0x0/0x40 [54387.706373] [<ffffffff8129b6c7>] ? idr_remove+0x187/0x1f0 [54387.706380] [<ffffffffa10be072>] dvb_usb_adapter_frontend_exit+0x22/0x40 [dvb_usb] [54387.706386] [<ffffffffa10bd4b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb] [54387.706393] [<ffffffffa10bd579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb] [54387.706399] [<ffffffffa1253051>] af9015_usb_device_exit+0x41/0x60 [dvb_usb_af9015] [54387.706408] [<ffffffff813c8721>] usb_unbind_interface+0x61/0x190 [54387.706417] [<ffffffff8135512f>] __device_release_driver+0x6f/0xe0 [54387.706422] [<ffffffff8135529d>] device_release_driver+0x2d/0x40 [54387.706428] [<ffffffff813542ba>] bus_remove_device+0x9a/0xc0 [54387.706433] [<ffffffff813523c7>] device_del+0x127/0x1d0 [54387.706438] [<ffffffff813c4d18>] usb_disable_device+0xa8/0x130 [54387.706443] [<ffffffff813be893>] usb_disconnect+0xd3/0x170 [54387.706448] [<ffffffff813bf8ee>] hub_thread+0x50e/0x1260 [54387.706454] [<ffffffff8107b540>] ? autoremove_wake_function+0x0/0x40 [54387.706459] [<ffffffff813bf3e0>] ? hub_thread+0x0/0x1260 [54387.706464] [<ffffffff8107b006>] kthread+0x96/0xa0 [54387.706470] [<ffffffff8100ae64>] kernel_thread_helper+0x4/0x10 [54387.706475] [<ffffffff8107af70>] ? kthread+0x0/0xa0 [54387.706480] [<ffffffff8100ae60>] ? kernel_thread_helper+0x0/0x10 [54507.498084] INFO: task khubd:42 blocked for more than 120 seconds. [54507.498089] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [54507.498094] khubd D 00000000ffffffff 0 42 2 0x00000000 [54507.498100] ffff8801270fdb00 0000000000000046 dead000000200200 0000000000015740 [54507.498107] ffff8801270fdfd8 0000000000015740 ffff8801270fdfd8 ffff8801270f5c00 [54507.498113] 0000000000015740 0000000000015740 ffff8801270fdfd8 0000000000015740 and so on. The same trace is repeated sevral time in the dmesg. I'm using a 2.6.34 unpatched on a SPM x86_64 box. It looks like I cannot reproduce the bug if I close VLC before I unplug the device. However, the bug is annoying because the usb is fully screwed up. The only way to get usb back on business is to reboot. Xavier -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
