Categories: BeagleBoard-xM :

beagleboard xM - kernel BB branch 3.6 - gst-dsp issue BUG: scheduling while atomic: queue1:src/89/0

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beagleboard xM - kernel BB branch 3.6 - gst-dsp issue BUG: scheduling while atomic: queue1:src/89/0 bizulk 10/5/12 10:21 AM
Hi !

I am experiencing trouble with gst-dsp :
  •     croostool CodeSrouce 2012
  •     beagleboard xM
  •     beagleboard kernel 3.6 (Beagleabord 3.6 branch)
  •     gstreamer 0.10.36 with plugins base, good
  •     custom FS (busybox only and base libs)
  •     ti LI23.8 dspcode
  •     gst-dsp  0.10.2
I compiled the tidspbridge with "check that buffer are aligned (but also tested without this option).

I load the mailbox and tidspbridge and run the dsp-test that displays "copied 1000 times successfully".

I test the gst-omapfb plugin that is ok (gst-launch -v videotestsrc pattern=snow ! omapfbsink)

If I try to read a videofile I get the following trace looping :

     gst-launch-0.10 filesrc location="/home/mntfat/9_h264-avc1_720x400_
    24fps_0bkps_aac_stereo_44KHz_128kbps.mp4" ! decodebin ! queue ! ffmpegcolorspace
     ! videoscale ! omapfbsink

        (gst-launch-0.10:85): GStreamer-CRITICAL **: gst_mini_object_unref: assertion `GST_IS_MINI_OBJECT (mini_object)' failed
        setup_buffers: couldn't allocate buffer: not-linked
        setup_buffers: couldn't allocate buffer: not-linked
        setup_buffers: couldn't allocate buffer: not-linked
        setup_buffers: couldn't allocate buffer: not-linked
        [  153.259735] BUG: scheduling while atomic: queue1:src/89/0x0000008e
        [  153.272521] Modules linked in: ntfs tidspbridge(C) mailbox_mach mailbox
        [  153.285766] [<c001369c>] (unwind_backtrace+0x0/0xe0) from [<c05b99e4>] (__schedule_bug+0x48/0x5c)
        [  153.301391] [<c05b99e4>] (__schedule_bug+0x48/0x5c) from [<c05c2d1c>] (__schedule+0x60/0x798)
        [  153.316802] [<c05c2d1c>] (__schedule+0x60/0x798) from [<c0010534>] (do_work_pending+0x18/0xa0)
        [  153.332336] [<c0010534>] (do_work_pending+0x18/0xa0) from [<c000d500>] (work_pending+0xc/0x20)
        [  153.348266] BUG: scheduling while atomic: queue1:src/89/0x0000008e
        [  153.361419] Modules linked in: ntfs tidspbridge(C) mailbox_mach mailbox.
 
The  first frame of the video is displayed. A few times the video is displayed (slowly because there are a lot of kernel msgs)

I can encode video :
gst-launch -v videotestsrc num-buffers=500 ! video/x-raw-yuv, framerate=25/1, width=640, height=480 ! dspmp4venc ! filesink location=/home/mntfat/test.mp4

The file is played on desktop PC. If I try to read this with gst-dsp then I get the same kernel log as above.

Is the plugin not using correctly the dsp API or is it about mailbox/tidspbridge interface ?
Does Anybody knows a workaround about this ?

Regards,
Selso.