I keep getting the following error messages when hot-unplugging a USB
camera on BBB 3.13.6-bone7 with DMA disabled (PIO only). The system
seems to recover fine otherwise.
Regards,
Dave.
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups "BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
[ 435.326452] uvcvideo: Non-zero status (-71) in video completion handler.
[ 435.333626] uvcvideo: Non-zero status (-71) in video completion handler.
[ 435.340688] uvcvideo: Non-zero status (-71) in video completion handler.
[ 435.347806] uvcvideo: Non-zero status (-71) in video completion handler.
[ 435.354926] uvcvideo: Non-zero status (-71) in video completion handler.
[ 435.526961] usb 2-1.4: USB disconnect, device number 7
[ 435.644690] ------------[ cut here ]------------
[ 435.649736] WARNING: CPU: 0 PID: 1521 at fs/sysfs/group.c:214
sysfs_remove_group+0x4c/0xfc()
[ 435.658619] sysfs group c0b23da0 not found for kobject 'event0'
[ 435.664816] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp
xfrm_ipcomp esp4 ah4 nfsd deflate ctr des_generic cbc ecb cmac af_key xfrm_algo
snd_usb_audio snd_hwdep uvcvideo snd_usbmidi_lib videobuf2_vmalloc
videobuf2_memops snd_rawmidi snd_seq_device videobuf2_core rtc_omap
uio_pdrv_genirq uio loop
[ 435.693594] CPU: 0 PID: 1521 Comm: python Tainted: G W
3.13.6-bone7 #1
[ 435.701421] [<c001413c>] (unwind_backtrace+0x0/0xdc) from [<c0010ed8>]
(show_stack+0x10/0x14)
[ 435.710386] [<c0010ed8>] (show_stack+0x10/0x14) from [<c06feddc>]
(dump_stack+0x70/0x8c)
[ 435.718888] [<c06feddc>] (dump_stack+0x70/0x8c) from [<c0039a44>]
(warn_slowpath_common+0x64/0x88)
[ 435.728293] [<c0039a44>] (warn_slowpath_common+0x64/0x88) from [<c0039a94>]
(warn_slowpath_fmt+0x2c/0x3c)
[ 435.738333] [<c0039a94>] (warn_slowpath_fmt+0x2c/0x3c) from [<c017ea1c>]
(sysfs_remove_group+0x4c/0xfc)
[ 435.748195] [<c017ea1c>] (sysfs_remove_group+0x4c/0xfc) from [<c046bdf0>]
(device_del+0x34/0x16c)
[ 435.757519] [<c046bdf0>] (device_del+0x34/0x16c) from [<c0521310>]
(evdev_disconnect+0x18/0x40)
[ 435.766635] [<c0521310>] (evdev_disconnect+0x18/0x40) from [<c051d5d8>]
(__input_unregister_device+0xac/0x140)
[ 435.777165] [<c051d5d8>] (__input_unregister_device+0xac/0x140) from
[<c051d6c0>] (input_unregister_device+0x4c/0x6c)
[ 435.788361] [<c051d6c0>] (input_unregister_device+0x4c/0x6c) from
[<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo])
[ 435.799164] [<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo]) from
[<c054370c>] (v4l2_device_release+0xb8/0xd8)
[ 435.809588] [<c054370c>] (v4l2_device_release+0xb8/0xd8) from [<c046b3c8>]
(device_release+0x5c/0x90)
[ 435.819272] [<c046b3c8>] (device_release+0x5c/0x90) from [<c03c4704>]
(kobject_cleanup+0x58/0x6c)
[ 435.828587] [<c03c4704>] (kobject_cleanup+0x58/0x6c) from [<c0543464>]
(v4l2_release+0x5c/0x68)
[ 435.837721] [<c0543464>] (v4l2_release+0x5c/0x68) from [<c01200d8>]
(__fput+0xd4/0x1dc)
[ 435.846118] [<c01200d8>] (__fput+0xd4/0x1dc) from [<c0054334>]
(task_work_run+0xac/0xc4)
[ 435.854617] [<c0054334>] (task_work_run+0xac/0xc4) from [<c0010988>]
(do_work_pending+0x88/0x9c)
[ 435.863839] [<c0010988>] (do_work_pending+0x88/0x9c) from [<c000d920>]
(work_pending+0xc/0x20)
[ 435.872873] ---[ end trace c0499242b34808eb ]---
[ 435.881321] ------------[ cut here ]------------
[ 435.886191] WARNING: CPU: 0 PID: 1521 at fs/sysfs/group.c:214
sysfs_remove_group+0x4c/0xfc()
[ 435.895166] sysfs group c0b23da0 not found for kobject 'input3'
[ 435.901404] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp
xfrm_ipcomp esp4 ah4 nfsd deflate ctr des_generic cbc ecb cmac af_key xfrm_algo
snd_usb_audio snd_hwdep uvcvideo snd_usbmidi_lib videobuf2_vmalloc
videobuf2_memops snd_rawmidi snd_seq_device videobuf2_core rtc_omap
uio_pdrv_genirq uio loop
[ 435.930321] CPU: 0 PID: 1521 Comm: python Tainted: G W
3.13.6-bone7 #1
[ 435.938195] [<c001413c>] (unwind_backtrace+0x0/0xdc) from [<c0010ed8>]
(show_stack+0x10/0x14)
[ 435.947134] [<c0010ed8>] (show_stack+0x10/0x14) from [<c06feddc>]
(dump_stack+0x70/0x8c)
[ 435.955641] [<c06feddc>] (dump_stack+0x70/0x8c) from [<c0039a44>]
(warn_slowpath_common+0x64/0x88)
[ 435.965046] [<c0039a44>] (warn_slowpath_common+0x64/0x88) from [<c0039a94>]
(warn_slowpath_fmt+0x2c/0x3c)
[ 435.975087] [<c0039a94>] (warn_slowpath_fmt+0x2c/0x3c) from [<c017ea1c>]
(sysfs_remove_group+0x4c/0xfc)
[ 435.984947] [<c017ea1c>] (sysfs_remove_group+0x4c/0xfc) from [<c046bdf0>]
(device_del+0x34/0x16c)
[ 435.994268] [<c046bdf0>] (device_del+0x34/0x16c) from [<c051d6c0>]
(input_unregister_device+0x4c/0x6c)
[ 436.004078] [<c051d6c0>] (input_unregister_device+0x4c/0x6c) from
[<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo])
[ 436.014877] [<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo]) from
[<c054370c>] (v4l2_device_release+0xb8/0xd8)
[ 436.025317] [<c054370c>] (v4l2_device_release+0xb8/0xd8) from [<c046b3c8>]
(device_release+0x5c/0x90)
[ 436.035033] [<c046b3c8>] (device_release+0x5c/0x90) from [<c03c4704>]
(kobject_cleanup+0x58/0x6c)
[ 436.044350] [<c03c4704>] (kobject_cleanup+0x58/0x6c) from [<c0543464>]
(v4l2_release+0x5c/0x68)
[ 436.053484] [<c0543464>] (v4l2_release+0x5c/0x68) from [<c01200d8>]
(__fput+0xd4/0x1dc)
[ 436.061896] [<c01200d8>] (__fput+0xd4/0x1dc) from [<c0054334>]
(task_work_run+0xac/0xc4)
[ 436.070391] [<c0054334>] (task_work_run+0xac/0xc4) from [<c0010988>]
(do_work_pending+0x88/0x9c)
[ 436.079614] [<c0010988>] (do_work_pending+0x88/0x9c) from [<c000d920>]
(work_pending+0xc/0x20)
[ 436.088649] ---[ end trace c0499242b34808ec ]---
[ 436.093509] ------------[ cut here ]------------
[ 436.098364] WARNING: CPU: 0 PID: 1521 at fs/sysfs/group.c:214
sysfs_remove_group+0x4c/0xfc()
[ 436.107198] sysfs group c0b2f5c4 not found for kobject 'input3'
[ 436.113407] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp
xfrm_ipcomp esp4 ah4 nfsd deflate ctr des_generic cbc ecb cmac af_key xfrm_algo
snd_usb_audio snd_hwdep uvcvideo snd_usbmidi_lib videobuf2_vmalloc
videobuf2_memops snd_rawmidi snd_seq_device videobuf2_core rtc_omap
uio_pdrv_genirq uio loop
[ 436.142080] CPU: 0 PID: 1521 Comm: python Tainted: G W
3.13.6-bone7 #1
[ 436.149850] [<c001413c>] (unwind_backtrace+0x0/0xdc) from [<c0010ed8>]
(show_stack+0x10/0x14)
[ 436.158813] [<c0010ed8>] (show_stack+0x10/0x14) from [<c06feddc>]
(dump_stack+0x70/0x8c)
[ 436.167290] [<c06feddc>] (dump_stack+0x70/0x8c) from [<c0039a44>]
(warn_slowpath_common+0x64/0x88)
[ 436.176694] [<c0039a44>] (warn_slowpath_common+0x64/0x88) from [<c0039a94>]
(warn_slowpath_fmt+0x2c/0x3c)
[ 436.186734] [<c0039a94>] (warn_slowpath_fmt+0x2c/0x3c) from [<c017ea1c>]
(sysfs_remove_group+0x4c/0xfc)
[ 436.196589] [<c017ea1c>] (sysfs_remove_group+0x4c/0xfc) from [<c017eaf4>]
(sysfs_remove_groups+0x28/0x30)
[ 436.206631] [<c017eaf4>] (sysfs_remove_groups+0x28/0x30) from [<c046b314>]
(device_remove_attrs+0x3c/0x58)
[ 436.216763] [<c046b314>] (device_remove_attrs+0x3c/0x58) from [<c046bebc>]
(device_del+0x100/0x16c)
[ 436.226257] [<c046bebc>] (device_del+0x100/0x16c) from [<c051d6c0>]
(input_unregister_device+0x4c/0x6c)
[ 436.236138] [<c051d6c0>] (input_unregister_device+0x4c/0x6c) from
[<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo])
[ 436.246923] [<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo]) from
[<c054370c>] (v4l2_device_release+0xb8/0xd8)
[ 436.257337] [<c054370c>] (v4l2_device_release+0xb8/0xd8) from [<c046b3c8>]
(device_release+0x5c/0x90)
[ 436.267115] [<c046b3c8>] (device_release+0x5c/0x90) from [<c03c4704>]
(kobject_cleanup+0x58/0x6c)
[ 436.276449] [<c03c4704>] (kobject_cleanup+0x58/0x6c) from [<c0543464>]
(v4l2_release+0x5c/0x68)
[ 436.285637] [<c0543464>] (v4l2_release+0x5c/0x68) from [<c01200d8>]
(__fput+0xd4/0x1dc)
[ 436.294049] [<c01200d8>] (__fput+0xd4/0x1dc) from [<c0054334>]
(task_work_run+0xac/0xc4)
[ 436.302546] [<c0054334>] (task_work_run+0xac/0xc4) from [<c0010988>]
(do_work_pending+0x88/0x9c)
[ 436.311785] [<c0010988>] (do_work_pending+0x88/0x9c) from [<c000d920>]
(work_pending+0xc/0x20)
[ 436.320819] ---[ end trace c0499242b34808ed ]---
[ 436.325652] ------------[ cut here ]------------
[ 436.330503] WARNING: CPU: 0 PID: 1521 at fs/sysfs/group.c:214
sysfs_remove_group+0x4c/0xfc()
[ 436.339356] sysfs group c0b2f4fc not found for kobject 'input3'
[ 436.345550] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp
xfrm_ipcomp esp4 ah4 nfsd deflate ctr des_generic cbc ecb cmac af_key xfrm_algo
snd_usb_audio snd_hwdep uvcvideo snd_usbmidi_lib videobuf2_vmalloc
videobuf2_memops snd_rawmidi snd_seq_device videobuf2_core rtc_omap
uio_pdrv_genirq uio loop
[ 436.374227] CPU: 0 PID: 1521 Comm: python Tainted: G W
3.13.6-bone7 #1
[ 436.381996] [<c001413c>] (unwind_backtrace+0x0/0xdc) from [<c0010ed8>]
(show_stack+0x10/0x14)
[ 436.390943] [<c0010ed8>] (show_stack+0x10/0x14) from [<c06feddc>]
(dump_stack+0x70/0x8c)
[ 436.399436] [<c06feddc>] (dump_stack+0x70/0x8c) from [<c0039a44>]
(warn_slowpath_common+0x64/0x88)
[ 436.408838] [<c0039a44>] (warn_slowpath_common+0x64/0x88) from [<c0039a94>]
(warn_slowpath_fmt+0x2c/0x3c)
[ 436.418877] [<c0039a94>] (warn_slowpath_fmt+0x2c/0x3c) from [<c017ea1c>]
(sysfs_remove_group+0x4c/0xfc)
[ 436.428733] [<c017ea1c>] (sysfs_remove_group+0x4c/0xfc) from [<c017eaf4>]
(sysfs_remove_groups+0x28/0x30)
[ 436.438776] [<c017eaf4>] (sysfs_remove_groups+0x28/0x30) from [<c046b314>]
(device_remove_attrs+0x3c/0x58)
[ 436.448907] [<c046b314>] (device_remove_attrs+0x3c/0x58) from [<c046bebc>]
(device_del+0x100/0x16c)
[ 436.458401] [<c046bebc>] (device_del+0x100/0x16c) from [<c051d6c0>]
(input_unregister_device+0x4c/0x6c)
[ 436.468274] [<c051d6c0>] (input_unregister_device+0x4c/0x6c) from
[<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo])
[ 436.479058] [<bf049294>] (uvc_delete+0x20/0x11c [uvcvideo]) from
[<c054370c>] (v4l2_device_release+0xb8/0xd8)
[ 436.489464] [<c054370c>] (v4l2_device_release+0xb8/0xd8) from [<c046b3c8>]
(device_release+0x5c/0x90)
[ 436.499138] [<c046b3c8>] (device_release+0x5c/0x90) from [<c03c4704>]
(kobject_cleanup+0x58/0x6c)
[ 436.508450] [<c03c4704>] (kobject_cleanup+0x58/0x6c) from [<c0543464>]
(v4l2_release+0x5c/0x68)
[ 436.517579] [<c0543464>] (v4l2_release+0x5c/0x68) from [<c01200d8>]
(__fput+0xd4/0x1dc)
[ 436.525967] [<c01200d8>] (__fput+0xd4/0x1dc) from [<c0054334>]
(task_work_run+0xac/0xc4)
[ 436.534460] [<c0054334>] (task_work_run+0xac/0xc4) from [<c0010988>]
(do_work_pending+0x88/0x9c)
[ 436.543681] [<c0010988>] (do_work_pending+0x88/0x9c) from [<c000d920>]
(work_pending+0xc/0x20)
[ 436.552712] ---[ end trace c0499242b34808ee ]---
[ 436.557725] ------------[ cut here ]------------
[ 436.562566] WARNING: CPU: 0 PID: 1521 at fs/sysfs/group.c:214
sysfs_remove_group+0x4c/0xfc()
[ 436.571427] sysfs group c0b23da0 not found for kobject 'media0'
[ 436.577640] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp
xfrm_ipcomp esp4 ah4 nfsd deflate ctr des_generic cbc ecb cmac af_key xfrm_algo
snd_usb_audio snd_hwdep uvcvideo snd_usbmidi_lib videobuf2_vmalloc
videobuf2_memops snd_rawmidi snd_seq_device videobuf2_core rtc_omap
uio_pdrv_genirq uio loop
[ 436.606301] CPU: 0 PID: 1521 Comm: python Tainted: G W
3.13.6-bone7 #1
[ 436.614087] [<c001413c>] (unwind_backtrace+0x0/0xdc) from [<c0010ed8>]
(show_stack+0x10/0x14)
[ 436.623043] [<c0010ed8>] (show_stack+0x10/0x14) from [<c06feddc>]
(dump_stack+0x70/0x8c)
[ 436.631536] [<c06feddc>] (dump_stack+0x70/0x8c) from [<c0039a44>]
(warn_slowpath_common+0x64/0x88)
[ 436.640938] [<c0039a44>] (warn_slowpath_common+0x64/0x88) from [<c0039a94>]
(warn_slowpath_fmt+0x2c/0x3c)
[ 436.651105] [<c0039a94>] (warn_slowpath_fmt+0x2c/0x3c) from [<c017ea1c>]
(sysfs_remove_group+0x4c/0xfc)
[ 436.660979] [<c017ea1c>] (sysfs_remove_group+0x4c/0xfc) from [<c046bdf0>]
(device_del+0x34/0x16c)
[ 436.670292] [<c046bdf0>] (device_del+0x34/0x16c) from [<c046bf34>]
(device_unregister+0xc/0x18)
[ 436.679441] [<c046bf34>] (device_unregister+0xc/0x18) from [<bf0492c4>]
(uvc_delete+0x50/0x11c [uvcvideo])
[ 436.689590] [<bf0492c4>] (uvc_delete+0x50/0x11c [uvcvideo]) from
[<c054370c>] (v4l2_device_release+0xb8/0xd8)
[ 436.700000] [<c054370c>] (v4l2_device_release+0xb8/0xd8) from [<c046b3c8>]
(device_release+0x5c/0x90)
[ 436.709677] [<c046b3c8>] (device_release+0x5c/0x90) from [<c03c4704>]
(kobject_cleanup+0x58/0x6c)
[ 436.718991] [<c03c4704>] (kobject_cleanup+0x58/0x6c) from [<c0543464>]
(v4l2_release+0x5c/0x68)
[ 436.728122] [<c0543464>] (v4l2_release+0x5c/0x68) from [<c01200d8>]
(__fput+0xd4/0x1dc)
[ 436.736512] [<c01200d8>] (__fput+0xd4/0x1dc) from [<c0054334>]
(task_work_run+0xac/0xc4)
[ 436.745009] [<c0054334>] (task_work_run+0xac/0xc4) from [<c0010988>]
(do_work_pending+0x88/0x9c)
[ 436.754230] [<c0010988>] (do_work_pending+0x88/0x9c) from [<c000d920>]
(work_pending+0xc/0x20)
[ 436.763263] ---[ end trace c0499242b34808ef ]---
[ 438.837931] usb 2-1.4: new high-speed USB device number 8 using musb-hdrc
[ 439.147040] usb 2-1.4: device v046d p082c is not supported
[ 439.152865] usb 2-1.4: New USB device found, idVendor=046d, idProduct=082c
[ 439.160082] usb 2-1.4: New USB device strings: Mfr=0, Product=2,
SerialNumber=1
[ 439.167749] usb 2-1.4: Product: HD Webcam C615
[ 439.172401] usb 2-1.4: SerialNumber: E25EC9D0
[ 439.467752] uvcvideo: Found UVC 1.00 device HD Webcam C615 (046d:082c)
[ 439.487552] input: HD Webcam C615 as
/devices/ocp.3/47400000.usb/47401c00.usb/musb-hdrc.1.auto/usb2/2-1/2-1.4/2-1.4:1.2/input/input4
