Re: [beagleboard] BBB UVC/DMA crash kernel 3.13.6-bone7.1
On Tue, May 20, 2014 at 8:32 AM, David Lambert d...@lambsys.com wrote: Unfortunately I seem to have spoken too soon. After multiple control commands, the UVC subsystem becomes unresponsive. Could I suggest making the default PIO only again? Sure, I can do that. I Actually thought that was the default in my v3.14.4 branch, I guess I've been spending too much time with v3.15-rcX.. https://github.com/RobertCNelson/bb-kernel/commit/fbe2858bfe0f112511b45a6c1ecf9c111ef6f47f Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] BBB UVC/DMA crash kernel 3.13.6-bone7.1
Robert, I just tried your 3.14.4-bone4 kernel. Thanks for including my Argus UPS cape patches:-) . It appears that the UVC DMA is getting better, but I am getting the following warning messages when I issue any UVC controls. The good news is that the system still continues to work fine apart from these messages. Close, but no cigar :-\ Please pass on words of encouragement to the developers responsible for this. Regards, Dave. On 03/14/2014 11:20 AM, Robert Nelson wrote: On Fri, Mar 14, 2014 at 11:14 AM, David Lambert d...@lambsys.com wrote: The USB DMA still appears to have problems when used with USB cameras. It appears that whenever I attempt to issue controls via UVC to a camera that is capturing, then I get the attached crash. PIO mode works fine. Could I suggest that the default defconfig selects PIO mode until DMA mode works reliably? I hope this is the right place to post. If not, please excuse my intrusion, and suggest another. Done: https://github.com/RobertCNelson/linux-dev/commit/182589d51ae7ecc82c1ba9ef2b6440edf2d9 I don't see it getting completely fixed anytime soon either Regards, uname -a Linux trax-jdal 3.14.4-bone4 #1 SMP Mon May 19 15:25:52 CDT 2014 armv7l GNU/Linux root@trax-jdal:~# [ 238.501234] [ cut here ] [ 238.506128] WARNING: CPU: 0 PID: 498 at drivers/dma/cppi41.c:605 cppi41_dma_control+0x2a0/0x2f0() [ 238.515429] Modules linked in: rtc_ds1307 snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi uvcvideo snd_seq_device snd_pcm videobuf2_vmalloc snd_timer videobuf2_memops snd videobuf2_core soundcore ftdi_sio usbserial omap_aes omap_sham rtc_omap uio_pdrv_genirq uio loop [ 238.540705] CPU: 0 PID: 498 Comm: python Tainted: GW 3.14.4-bone4 #1 [ 238.548403] [c0015218] (unwind_backtrace) from [c0011bbc] (show_stack+0x10/0x14) [ 238.556539] [c0011bbc] (show_stack) from [c06c8788] (dump_stack+0x80/0x90) [ 238.564121] [c06c8788] (dump_stack) from [c003f014] (warn_slowpath_common+0x70/0x8c) [ 238.572607] [c003f014] (warn_slowpath_common) from [c003f0cc] (warn_slowpath_null+0x1c/0x24) [ 238.581822] [c003f0cc] (warn_slowpath_null) from [c03bc900] (cppi41_dma_control+0x2a0/0x2f0) [ 238.591051] [c03bc900] (cppi41_dma_control) from [c04dfa78] (cppi41_dma_channel_abort+0xc8/0x13c) [ 238.600723] [c04dfa78] (cppi41_dma_channel_abort) from [c04db2a8] (musb_cleanup_urb.isra.12+0x40/0x10c) [ 238.610942] [c04db2a8] (musb_cleanup_urb.isra.12) from [c04db5b4] (musb_urb_dequeue+0xe8/0x128) [ 238.620440] [c04db5b4] (musb_urb_dequeue) from [c04c0bd0] (usb_hcd_unlink_urb+0x4c/0x84) [ 238.629292] [c04c0bd0] (usb_hcd_unlink_urb) from [c04c1d74] (usb_kill_urb+0x50/0xcc) [ 238.637818] [c04c1d74] (usb_kill_urb) from [bf0b8c08] (uvc_uninit_video+0x34/0x60 [uvcvideo]) [ 238.647147] [bf0b8c08] (uvc_uninit_video [uvcvideo]) from [bf0baff0] (uvc_video_enable+0x18/0x168 [uvcvideo]) [ 238.657926] [bf0baff0] (uvc_video_enable [uvcvideo]) from [bf0b7fbc] (uvc_v4l2_do_ioctl+0x5b8/0x1180 [uvcvideo]) [ 238.668979] [bf0b7fbc] (uvc_v4l2_do_ioctl [uvcvideo]) from [c0517560] (video_usercopy+0x194/0x53c) [ 238.678742] [c0517560] (video_usercopy) from [c0513344] (v4l2_ioctl+0x114/0x13c) [ 238.686872] [c0513344] (v4l2_ioctl) from [c0156d60] (do_vfs_ioctl+0x400/0x5c4) [ 238.694813] [c0156d60] (do_vfs_ioctl) from [c0156f90] (SyS_ioctl+0x6c/0x7c) [ 238.702484] [c0156f90] (SyS_ioctl) from [c000e1a0] (ret_fast_syscall+0x0/0x30) [ 238.710420] ---[ end trace 4b907c08f9a1b69e ]--- [ 238.715257] [ cut here ] [ 238.720099] WARNING: CPU: 0 PID: 498 at drivers/dma/cppi41.c:629 cppi41_dma_control+0x28c/0x2f0() [ 238.729397] Modules linked in: rtc_ds1307 snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi uvcvideo snd_seq_device snd_pcm videobuf2_vmalloc snd_timer videobuf2_memops snd videobuf2_core soundcore ftdi_sio usbserial omap_aes omap_sham rtc_omap uio_pdrv_genirq uio loop [ 238.754654] CPU: 0 PID: 498 Comm: python Tainted: GW 3.14.4-bone4 #1 [ 238.762324] [c0015218] (unwind_backtrace) from [c0011bbc] (show_stack+0x10/0x14) [ 238.770448] [c0011bbc] (show_stack) from [c06c8788] (dump_stack+0x80/0x90) [ 238.778024] [c06c8788] (dump_stack) from [c003f014] (warn_slowpath_common+0x70/0x8c) [ 238.786509] [c003f014] (warn_slowpath_common) from [c003f0cc] (warn_slowpath_null+0x1c/0x24) [ 238.795722] [c003f0cc] (warn_slowpath_null) from [c03bc8ec] (cppi41_dma_control+0x28c/0x2f0) [ 238.804939] [c03bc8ec] (cppi41_dma_control) from [c04dfa78] (cppi41_dma_channel_abort+0xc8/0x13c) [ 238.814611] [c04dfa78] (cppi41_dma_channel_abort) from [c04db2a8] (musb_cleanup_urb.isra.12+0x40/0x10c) [ 238.824829] [c04db2a8] (musb_cleanup_urb.isra.12) from [c04db5b4] (musb_urb_dequeue+0xe8/0x128) [ 238.834317] [c04db5b4] (musb_urb_dequeue) from [c04c0bd0] (usb_hcd_unlink_urb+0x4c/0x84) [ 238.843169] [c04c0bd0] (usb_hcd_unlink_urb) from [c04c1d74] (usb_kill_urb+0x50/0xcc) [ 238.851664]
[beagleboard] BBB UVC/DMA crash kernel 3.13.6-bone7.1
The USB DMA still appears to have problems when used with USB cameras. It appears that whenever I attempt to issue controls via UVC to a camera that is capturing, then I get the attached crash. PIO mode works fine. Could I suggest that the default defconfig selects PIO mode until DMA mode works reliably? I hope this is the right place to post. If not, please excuse my intrusion, and suggest another. Best 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. root@argus-dev:~# [ 60.007731] [ cut here ] [ 60.012617] WARNING: CPU: 0 PID: 702 at drivers/dma/cppi41.c:605 cppi41_dma_control+0x230/0x2ac() [ 60.021920] 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 uvcvideo snd_usb_audio videobuf2_vmalloc videobuf2_memops snd_hwdep snd_usbmidi_lib videobuf2_core snd_rawmidi snd_seq_device ti_am335x_adc kfifo_buf industrialio rtc_omap uio_pdrv_genirq uio loop [ 60.053997] CPU: 0 PID: 702 Comm: python Not tainted 3.13.6-bone7.1 #2 [ 60.060878] [c001413c] (unwind_backtrace+0x0/0xdc) from [c0010ed8] (show_stack+0x10/0x14) [ 60.069817] [c0010ed8] (show_stack+0x10/0x14) from [c0700c00] (dump_stack+0x70/0x8c) [ 60.078298] [c0700c00] (dump_stack+0x70/0x8c) from [c0039a44] (warn_slowpath_common+0x64/0x88) [ 60.087685] [c0039a44] (warn_slowpath_common+0x64/0x88) from [c0039af8] (warn_slowpath_null+0x18/0x20) [ 60.097799] [c0039af8] (warn_slowpath_null+0x18/0x20) from [c040ea98] (cppi41_dma_control+0x230/0x2ac) [ 60.107925] [c040ea98] (cppi41_dma_control+0x230/0x2ac) from [c05170bc] (cppi41_dma_channel_abort+0x104/0x140) [ 60.118771] [c05170bc] (cppi41_dma_channel_abort+0x104/0x140) from [c0512828] (musb_cleanup_urb.isra.7+0x44/0xe4) [ 60.129887] [c0512828] (musb_cleanup_urb.isra.7+0x44/0xe4) from [c05129bc] (musb_urb_dequeue+0xf4/0x114) [ 60.140190] [c05129bc] (musb_urb_dequeue+0xf4/0x114) from [c04fafb0] (usb_hcd_unlink_urb+0x5c/0x7c) [ 60.150033] [c04fafb0] (usb_hcd_unlink_urb+0x5c/0x7c) from [c04fbd60] (usb_kill_urb+0x50/0xc4) [ 60.159462] [c04fbd60] (usb_kill_urb+0x50/0xc4) from [bf0994b8] (uvc_uninit_video+0x34/0x60 [uvcvideo]) [ 60.169706] [bf0994b8] (uvc_uninit_video+0x34/0x60 [uvcvideo]) from [bf09b538] (uvc_video_enable+0x18/0x124 [uvcvideo]) [ 60.181391] [bf09b538] (uvc_video_enable+0x18/0x124 [uvcvideo]) from [bf099160] (uvc_v4l2_do_ioctl+0xd20/0xff4 [uvcvideo]) [ 60.193343] [bf099160] (uvc_v4l2_do_ioctl+0xd20/0xff4 [uvcvideo]) from [c05499cc] (video_usercopy+0x2ac/0x3e8) [ 60.204200] [c05499cc] (video_usercopy+0x2ac/0x3e8) from [c05453b4] (v4l2_ioctl+0x60/0x124) [ 60.213319] [c05453b4] (v4l2_ioctl+0x60/0x124) from [c012ebbc] (do_vfs_ioctl+0x4c8/0x588) [ 60.52] [c012ebbc] (do_vfs_ioctl+0x4c8/0x588) from [c012ecc8] (SyS_ioctl+0x4c/0x78) [ 60.231002] [c012ecc8] (SyS_ioctl+0x4c/0x78) from [c000d8e0] (ret_fast_syscall+0x0/0x30) [ 60.239839] ---[ end trace 936578196fc420af ]--- [ 60.244668] [ cut here ] [ 60.249505] WARNING: CPU: 0 PID: 702 at drivers/dma/cppi41.c:629 cppi41_dma_control+0x278/0x2ac() [ 60.258791] 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 uvcvideo snd_usb_audio videobuf2_vmalloc videobuf2_memops snd_hwdep snd_usbmidi_lib videobuf2_core snd_rawmidi snd_seq_device ti_am335x_adc kfifo_buf industrialio rtc_omap uio_pdrv_genirq uio loop [ 60.290795] CPU: 0 PID: 702 Comm: python Tainted: GW 3.13.6-bone7.1 #2 [ 60.298638] [c001413c] (unwind_backtrace+0x0/0xdc) from [c0010ed8] (show_stack+0x10/0x14) [ 60.307572] [c0010ed8] (show_stack+0x10/0x14) from [c0700c00] (dump_stack+0x70/0x8c) [ 60.316048] [c0700c00] (dump_stack+0x70/0x8c) from [c0039a44] (warn_slowpath_common+0x64/0x88) [ 60.325433] [c0039a44] (warn_slowpath_common+0x64/0x88) from [c0039af8] (warn_slowpath_null+0x18/0x20) [ 60.335546] [c0039af8] (warn_slowpath_null+0x18/0x20) from [c040eae0] (cppi41_dma_control+0x278/0x2ac) [ 60.345662] [c040eae0] (cppi41_dma_control+0x278/0x2ac) from [c05170bc] (cppi41_dma_channel_abort+0x104/0x140) [ 60.356505] [c05170bc] (cppi41_dma_channel_abort+0x104/0x140) from [c0512828] (musb_cleanup_urb.isra.7+0x44/0xe4) [ 60.367620] [c0512828] (musb_cleanup_urb.isra.7+0x44/0xe4) from [c05129bc] (musb_urb_dequeue+0xf4/0x114) [ 60.377918] [c05129bc] (musb_urb_dequeue+0xf4/0x114) from [c04fafb0] (usb_hcd_unlink_urb+0x5c/0x7c) [ 60.387760] [c04fafb0] (usb_hcd_unlink_urb+0x5c/0x7c) from [c04fbd60] (usb_kill_urb+0x50/0xc4) [ 60.397161] [c04fbd60]
Re: [beagleboard] BBB UVC/DMA crash kernel 3.13.6-bone7.1
On Fri, Mar 14, 2014 at 11:14 AM, David Lambert d...@lambsys.com wrote: The USB DMA still appears to have problems when used with USB cameras. It appears that whenever I attempt to issue controls via UVC to a camera that is capturing, then I get the attached crash. PIO mode works fine. Could I suggest that the default defconfig selects PIO mode until DMA mode works reliably? I hope this is the right place to post. If not, please excuse my intrusion, and suggest another. Done: https://github.com/RobertCNelson/linux-dev/commit/182589d51ae7ecc82c1ba9ef2b6440edf2d9 I don't see it getting completely fixed anytime soon either Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] BBB UVC/DMA crash kernel 3.13.6-bone7.1
On 03/14/2014 11:20 AM, Robert Nelson wrote: On Fri, Mar 14, 2014 at 11:14 AM, David Lambert d...@lambsys.com wrote: The USB DMA still appears to have problems when used with USB cameras. It appears that whenever I attempt to issue controls via UVC to a camera that is capturing, then I get the attached crash. PIO mode works fine. Could I suggest that the default defconfig selects PIO mode until DMA mode works reliably? I hope this is the right place to post. If not, please excuse my intrusion, and suggest another. Done: https://github.com/RobertCNelson/linux-dev/commit/182589d51ae7ecc82c1ba9ef2b6440edf2d9 I don't see it getting completely fixed anytime soon either That's a shame. I guess it is a known problem then. Just no one working on it? :-( Regards, -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
