vivi.c stuck my CPU

[2950.237132] BUG: soft lockup - CPU#0 stuck for 11s! [vivi:9709]

any chance that is an application problem ?

Carl K

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CPU#0 stuck came from using transcode:
++ transcode -i /dev/video0 -x v4l2,null -g 640x480 --dv_yuy2_mode -V yuv422p -k --encode_fields p

I rebooted, loaded vivi and tried xawtv. Didn't crash as hard, but none the less, things aren't right.

juser@vaio:~$ sudo modprobe vivi
[  184.053222] Linux video capture interface: v2.00
[  184.070413] vivi: V4L2 device registered as /dev/video0
[  184.070424] Video Technology Magazine Virtual Video Capture Board ver 0.5.0 successfully loaded.

juser@vaio:~$ xawtv
This is xawtv-3.95.dfsg.1, running on Linux/i686 (2.6.24-10-generic)
/dev/video0 [v4l2]: no overlay support
v4l-conf had some trouble, trying to continue anyway
Warning: Cannot convert string "-*-ledfixed-medium-r-*--39-*-*-*-c-*-*-*" to type FontStruct
ioctl: VIDIOC_REQBUFS(count=2;type=VIDEO_CAPTURE;memory=MMAP): Success
ioctl: VIDIOC_DQBUF(index=0;type=VIDEO_CAPTURE;bytesused=0;flags=0x0 [];field=ANY;;timecode.type=0;timecode.flags=0;timecode.frames=0;timecode.seconds=0;timecode.minutes=0;timecode.hours=0;timecode.userbits="";sequence=0;memory=MMAP): Input/output error

[  251.821907] vivi: open called (minor=0)
[  251.823664] vivi: open called (minor=0)
[  251.824152] vivi: open called (minor=0)
[  314.810130] vivi/0: [d7491a00/0] timeout
[  314.810141] vivi/0: [d7491280/1] timeout
[  251.821907] vivi: open called (minor=0)
[  251.823664] vivi: open called (minor=0)
[  251.824152] vivi: open called (minor=0)
[  314.810130] vivi/0: [d7491a00/0] timeout
[  314.810141] vivi/0: [d7491280/1] timeout
[  586.440266] vivi: open called (minor=0)
[  586.480991] vivi: open called (minor=0)
[  650.181535] vivi/0: [d64dfd80/1] timeout
[  650.181546] vivi/0: [d64dfe80/2] timeout
[  650.181551] vivi/0: [d64df980/3] timeout
[  650.181555] vivi/0: [d64dfe00/4] timeout
[  650.181559] vivi/0: [d64df100/5] timeout
[  650.181563] vivi/0: [d64df800/6] timeout
[  650.181567] vivi/0: [d64dfd00/7] timeout
[  650.181571] vivi/0: [d64dff80/8] timeout
[  650.181575] vivi/0: [d64df680/9] timeout
[  650.181579] vivi/0: [d791d380/10] timeout
[  650.181583] vivi/0: [d7996d80/11] timeout
[  650.181587] vivi/0: [d7996380/12] timeout
[  650.181592] vivi/0: [d6d25e00/13] timeout
[  650.181596] vivi/0: [d6d25e80/14] timeout
[  650.181600] vivi/0: [d6d25f80/15] timeout
[  650.181604] vivi/0: [d6d25f00/16] timeout
[  650.181608] vivi/0: [d6d25300/17] timeout
[  650.181612] vivi/0: [d6d25080/18] timeout
[  650.181616] vivi/0: [d6d25400/19] timeout
[  650.181620] vivi/0: [d6d25580/20] timeout
[  650.181624] vivi/0: [d6d25d80/21] timeout
[  650.181628] vivi/0: [d6d25d00/22] timeout
[  650.181632] vivi/0: [d6d25c80/23] timeout
[  650.181636] vivi/0: [d6d25b80/24] timeout
[  650.181640] vivi/0: [d6d25700/25] timeout
[  650.181644] vivi/0: [d6d25a00/26] timeout
[  650.181648] vivi/0: [d6d25200/27] timeout
[  650.181652] vivi/0: [d6d25800/28] timeout
[  650.181656] vivi/0: [d6d25000/29] timeout
[  650.181660] vivi/0: [d7491280/30] timeout
[  650.181665] vivi/0: [d7491a00/31] timeout
[  650.181671] vivi/0: [d64dfc80/0] timeout

If someone will point me in the right direction, I'll write a test app to reproduce this.

And where is the right place to report bugs?

Carl K

ps hope ya'll don't get tired of my test quest.)

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Just to be sure my recent hacking wasn't the cause, here is the same problem using the stock vivi.

Carl K

++ transcode -i /dev/video0 -x v4l2,null -g 640x480
transcode v1.2.0-cvs (C) 2001-2003 Thomas Oestreich, 2003-2007 Transcode Team

[transcode] V: auto-probing     | /dev/video0 (OK)
[transcode] V: import format    | (null) in  (module=v4l2)
[transcode] A: auto-probing     | /dev/video0 (OK)
[transcode] A: import format    | PCM in  (module=null)
[transcode] V: AV demux/sync    | (1) sync AV at initial MPEG sequence
[transcode] V: import frame     | 640x480  1.33:1  encoded @ UNKNOWN
[transcode] V: bits/pixel       | 0.196
[transcode] V: decoding fps,frc | 29.970,4
[transcode] V: video format     | YUV420 (4:2:0) aka I420
[transcode] A: import format    | 0x1     PCM          [44100,16,2]
[transcode] A: export           | disabled
[transcode] V: encoding fps,frc | 29.970,4
[transcode] A: bytes per frame  | 5884 (5885.880000)
[transcode] A: adjustment       | 1880@1000
[transcode] V: IA32/AMD64 accel | sse2 sse mmx cmove asm

[transcode] warning: no option -o found, encoded frames send to "/dev/null" [transcode] warning: no option -y found, option -o ignored, writing to "/dev/null"
[transcode] V: video buffer | 10 @ 640x480 [0x2]
[transcode] A: audio buffer | 10 @ 44100x2x16

[import_null.so] v0.2.0 (2002-01-19) (video) null | (audio) null
[import_v4l2.so] v1.4.0 (2005-10-08) (video) v4l2 | (audio) pcm
[export_null.so] v0.1.2 (2001-08-17) (video) null | (audio) null

[import_v4l2.so] v4l2 video grabbing
[import_v4l2.so] resync disabled
[import_v4l2.so] video grabbing, driver = vivi, card = vivi
[import_v4l2.so] critical: VIDIOC_S_FMT: : Invalid argument
[import_v4l2.so] critical: Pixel format conversion: YUV420 [planar] -> YUV420 [planar] (no conversion) [import_v4l2.so] critical: VIDIOC_S_FMT: : Invalid argument
[import_v4l2.so] critical: Pixel format conversion: YVU420 [planar] -> YUV420 [planar] [import_v4l2.so] critical: VIDIOC_S_FMT: : Invalid argument
[import_v4l2.so] critical: Pixel format conversion: YUV422 [planar] -> YUV420 [planar] [import_v4l2.so] critical: VIDIOC_S_FMT: : Invalid argument
[import_v4l2.so] critical: Pixel format conversion: YUV411 [planar] -> YUV420 [planar] [import_v4l2.so] critical: VIDIOC_S_FMT: : Invalid argument
[import_v4l2.so] critical: Pixel format conversion: UYVY [packed] -> YUV420 [planar] [import_v4l2.so] Pixel format conversion: YUY2 [packed] -> YUV420 [planar]
[import_v4l2.so] warning: driver does not support setting parameters (ioctl(VIDIOC_S_PARM) returns "Invalid argument") [import_v4l2.so] checking colour & framerate standards:
[import_v4l2.so] [NTSC-M]
[import_v4l2.so] receiving 30 frames / sec
[import_v4l2.so] warning: driver does not support cropping (ioctl(VIDIOC_CROPCAP) returns "Invalid argument"), disabled [import_v4l2.so] 27 buffers available
[import_v4l2.so] critical: VIDIOC_S_CTRL: Invalid argument
[import_v4l2.so] critical: VIDIOC_DQBUF: Input/output error0|11)
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Input/output error
[import_v4l2.so] critical: recover DQBUF: Invalid argument
encoding frames [0-81786], 33.10 fps, CFT: 0:45:28, ( 9| 0|11)

Mar  2 22:55:52 averatec kernel: [ 6285.287267] Linux video capture interface: v2.00
Mar  2 22:55:52 averatec kernel: [ 6285.365317] videodev: "vivi" has no release callback. Please fix your driver for proper sysfs support, see http://lwn.net/Articles/36850/
Mar  2 22:55:52 averatec kernel: [ 6285.365332] Video Technology Magazine Virtual Video Capture Board (Load status: 0)
Mar  2 23:08:09 averatec -- MARK --
Mar  2 23:17:02 averatec /USR/SBIN/CRON[6050]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Mar  2 23:28:09 averatec -- MARK --
Mar  2 23:35:14 averatec kernel: [ 8645.771164] vivi: open called (minor=0)
Mar  2 23:35:20 averatec kernel: [ 8651.424893] vivi/0: [c462c600/21] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424906] vivi/0: [c462c200/22] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424911] vivi/0: [c462c400/23] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424916] vivi/0: [c462cc00/24] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424921] vivi/0: [c462c800/25] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424926] vivi/0: [c462cb00/26] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424932] vivi/0: [cecac500/0] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424937] vivi/0: [cecac180/1] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424942] vivi/0: [cecac200/2] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424947] vivi/0: [cecac480/3] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424952] vivi/0: [cecac900/4] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424957] vivi/0: [cecacb80/5] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424962] vivi/0: [cecacb00/6] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424967] vivi/0: [cecaca00/7] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424971] vivi/0: [cecac980/8] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424976] vivi/0: [cecacf00/9] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424981] vivi/0: [cecace80/10] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424986] vivi/0: [cecacd00/11] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424991] vivi/0: [cecac100/12] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.424996] vivi/0: [cecacd80/13] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.425001] vivi/0: [c462c380/14] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.425006] vivi/0: [c462c900/15] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.425011] vivi/0: [c462c100/16] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.425016] vivi/0: [c462cd80/17] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.425021] vivi/0: [c462c580/18] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.425026] vivi/0: [c462cb80/19] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.425031] vivi/0: [c462ca80/20] timeout
Mar  2 23:35:20 averatec kernel: [ 8651.433110] vivi: close called (minor=0, users=0)
Mar  2 23:43:02 averatec kernel: [ 9113.495941] vivi: open called (minor=0)
Mar  2 23:43:02 averatec kernel: [ 9113.497601] vivi: close called (minor=0, users=0)
Mar  2 23:43:02 averatec kernel: [ 9113.512104] vivi: open called (minor=0)
Mar  2 23:43:02 averatec kernel: [ 9113.514565] vivi: close called (minor=0, users=0)
Mar  2 23:43:34 averatec kernel: [ 9146.016418] vivi: open called (minor=0)
Mar  2 23:43:34 averatec kernel: [ 9146.017994] vivi: close called (minor=0, users=0)
Mar  2 23:43:34 averatec kernel: [ 9146.033646] vivi: open called (minor=0)
Mar  2 23:43:34 averatec kernel: [ 9146.035201] vivi: close called (minor=0, users=0)
Mar  2 23:44:04 averatec kernel: [ 9175.929944] vivi: open called (minor=0)
Mar  2 23:44:04 averatec kernel: [ 9175.931536] vivi: close called (minor=0, users=0)
Mar  2 23:44:04 averatec kernel: [ 9175.948399] vivi: open called (minor=0)
Mar  2 23:44:04 averatec kernel: [ 9175.949935] vivi: close called (minor=0, users=0)
Mar  2 23:44:04 averatec kernel: [ 9176.010399] vivi: open called (minor=0)
Mar  2 23:44:04 averatec kernel: [ 9176.012212] vivi: close called (minor=0, users=0)
Mar  2 23:44:35 averatec kernel: [ 9206.879978] vivi: open called (minor=0)
Mar  2 23:44:35 averatec kernel: [ 9206.881611] vivi: close called (minor=0, users=0)
Mar  2 23:44:35 averatec kernel: [ 9206.897332] vivi: open called (minor=0)
Mar  2 23:44:35 averatec kernel: [ 9206.898868] vivi: close called (minor=0, users=0)
Mar  2 23:44:35 averatec kernel: [ 9206.903592] vivi: open called (minor=0)
Mar  3 00:08:09 averatec -- MARK --
Mar  3 00:17:01 averatec /USR/SBIN/CRON[6200]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Mar  3 00:20:21 averatec kernel: [11351.719611] vivi/0: [cdb34e00/9] timeout
Mar  3 00:20:21 averatec kernel: [11351.719622] vivi/0: [cdb34680/10] timeout
Mar  3 00:20:21 averatec kernel: [11351.719628] vivi/0: [cdb34400/11] timeout
Mar  3 00:20:21 averatec kernel: [11351.719633] vivi/0: [cdb34c00/12] timeout
Mar  3 00:20:21 averatec kernel: [11351.719638] vivi/0: [cdb34e80/13] timeout
Mar  3 00:20:21 averatec kernel: [11351.719643] vivi/0: [cdb34500/14] timeout
Mar  3 00:20:21 averatec kernel: [11351.719648] vivi/0: [cdb34900/15] timeout
Mar  3 00:20:21 averatec kernel: [11351.719653] vivi/0: [cdb34780/16] timeout
Mar  3 00:20:21 averatec kernel: [11351.719658] vivi/0: [cdb34f00/17] timeout
Mar  3 00:20:21 averatec kernel: [11351.719663] vivi/0: [cdb34700/18] timeout
Mar  3 00:20:21 averatec kernel: [11351.719668] vivi/0: [cdb34800/19] timeout
Mar  3 00:20:21 averatec kernel: [11351.719672] vivi/0: [cdb34d00/20] timeout
Mar  3 00:20:21 averatec kernel: [11351.719677] vivi/0: [cdb34a00/21] timeout
Mar  3 00:20:21 averatec kernel: [11351.719682] vivi/0: [cdb34380/22] timeout
Mar  3 00:20:21 averatec kernel: [11351.719687] vivi/0: [cdb34200/23] timeout
Mar  3 00:20:21 averatec kernel: [11351.719692] vivi/0: [cdb34280/24] timeout
Mar  3 00:20:21 averatec kernel: [11351.719697] vivi/0: [cdb34080/25] timeout
Mar  3 00:20:21 averatec kernel: [11351.719702] vivi/0: [cdb34980/26] timeout
Mar  3 00:20:21 averatec kernel: [11351.719707] vivi/0: [cdb34f80/0] timeout
Mar  3 00:20:21 averatec kernel: [11351.719713] vivi/0: [cdb34300/1] timeout
Mar  3 00:20:21 averatec kernel: [11351.719718] vivi/0: [cdb34600/2] timeout
Mar  3 00:20:21 averatec kernel: [11351.719723] vivi/0: [cdb34b80/3] timeout
Mar  3 00:20:21 averatec kernel: [11351.719727] vivi/0: [cdb34d80/4] timeout
Mar  3 00:20:21 averatec kernel: [11351.719732] vivi/0: [cdb34880/5] timeout
Mar  3 00:20:21 averatec kernel: [11351.719737] vivi/0: [cdb34100/6] timeout
Mar  3 00:20:21 averatec kernel: [11351.719742] vivi/0: [cdb34580/7] timeout
Mar  3 00:20:21 averatec kernel: [11351.719747] vivi/0: [cdb34480/8] timeout

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I see Brandon beat me to it.

Carl K

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I have ripped vivi apart and it no longer locks up in most cases. :D

However, I need to finish fixing up the videobuf layer to be thread safe before it will all be complete. I will submit patches as soon as my work is done :)

Thanks,

Brandon

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