From: Xavier Gnata <xavier.gnata@gmail.com>
To: linux-media@vger.kernel.org
Subject: dvb-usb/af9015 disconnection crashes
Date: Sat, 05 Jun 2010 03:48:20 +0200 [thread overview]
Message-ID: <4C09ACE4.6080003@gmail.com> (raw)
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
reply other threads:[~2010-06-05 1:48 UTC|newest]
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