Re: ivtv driver inputs randomly "block"

["Brian J. Murrell" <brian@interlinx.bc.ca>]

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On 12-11-28 08:13 AM, Ezequiel Garcia wrote:
> 
> Try again with
> modprobe ivtv ivtv_debug=10

OK.  Happened again.  The kernel log for the whole day since starting
the module with debug this morning can be found at
http://brian.interlinx.bc.ca/ivtv-dmesg.txt.bz2.

Associated with that log there was a successful recording from 09:00:00
until 10:00:00 then another successful recording from 14:00:00 until
15:00:00 and then failed recordings starting at 15:00:00 until 18:00:00.

The log cuts off just short of 18:00:00 but there's nothing different
about the pattern from the end of the log until 18:00:04 from the
previous 3 hours or so.

It seems that the problem lies in amongst the start of these lines from
the log, as my best guess:

Nov 28 15:00:05 cmurrell kernel: [868297.536049] ivtv0 encoder MPG: VIDIOC_ENCODER_CMD cmd=0, flags=0
Nov 28 15:00:07 cmurrell kernel: [868300.039324] ivtv0:  ioctl: V4L2_ENC_CMD_STOP
Nov 28 15:00:07 cmurrell kernel: [868300.039330] ivtv0:  info: close stopping capture
Nov 28 15:00:07 cmurrell kernel: [868300.039334] ivtv0:  info: Stop Capture
Nov 28 15:00:09 cmurrell kernel: [868302.140151] ivtv0 encoder MPG: VIDIOC_ENCODER_CMD cmd=1, flags=1
Nov 28 15:00:09 cmurrell kernel: [868302.148093] ivtv0:  ioctl: V4L2_ENC_CMD_START
Nov 28 15:00:09 cmurrell kernel: [868302.148101] ivtv0:  info: Start encoder stream encoder MPG
Nov 28 15:00:09 cmurrell kernel: [868302.188580] ivtv0:  info: Setup VBI API header 0x0000bd03 pkts 1 buffs 4 ln 24 sz 1456
Nov 28 15:00:09 cmurrell kernel: [868302.188655] ivtv0:  info: Setup VBI start 0x002fea04 frames 4 fpi 1
Nov 28 15:00:09 cmurrell kernel: [868302.191952] ivtv0:  info: PGM Index at 0x00180150 with 400 elements
Nov 28 15:00:10 cmurrell kernel: [868302.544052] ivtv0 encoder MPG: VIDIOC_ENCODER_CMD cmd=0, flags=0
Nov 28 15:00:12 cmurrell kernel: [868305.047260] ivtv0:  ioctl: V4L2_ENC_CMD_STOP
Nov 28 15:00:12 cmurrell kernel: [868305.047265] ivtv0:  info: close stopping capture
Nov 28 15:00:12 cmurrell kernel: [868305.047270] ivtv0:  info: Stop Capture
...

FWIW, the recording software here is MythTV completely up to date on the
0.25-fixes branch.

Thoughts?

b.



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