[mythtv] Failed DVB recording

Tom Hughes tom at compton.nu
Thu Feb 10 19:17:45 UTC 2005


I had a DVB recording fail last night. The relevant log extract is:

2005-02-09 18:30:04.271 DVB#0 DVB signal 5300 | snr 5000 | ber 143af12 | unc 7961d18
2005-02-09 18:30:04.273 DVB#0 Status: LOCK.
2005-02-09 18:30:04.273 DVB#0 Multiplex Locked
2005-02-09 18:30:10.966 DVB#0 Timeout Getting PMT
2005-02-09 18:30:11.096 DVB#0 ERROR - Tuning for channel #4 failed.
2005-02-09 18:30:11.176 Changing from None to RecordingOnly
2005-02-09 18:30:11.237 DVB#0 Recorder: Card opened successfully (using PS mode).
2005-02-09 18:30:12.265 DVB#0 WARNING - No data from card in 1 second.
2005-02-09 18:30:13.316 DVB#0 WARNING - No data from card in 1 second.
2005-02-09 18:30:14.318 DVB#0 WARNING - No data from card in 1 second.

Obviously it failed to tune the right channel due to a timeout
getting the PMT from the multiplex. I don't know what the cause
of that was, but what happened afterwards is that it continued
to pretend it was recording and spew out those "No data" messages
for the duration of the program.

In fact that's why I noticed what was happing because it was using
far more CPU than normal and caused other things to slow down.

Presumably something should have noticed that tuning failed and
either tried again or given up rather than chewing up CPU for a
long time and producing a zero length recording...

Tom

-- 
Tom Hughes (tom at compton.nu)
http://www.compton.nu/


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