[mythtv-users] Frontend crash after 2-3 hours of live tv - Any suggestions?

[Christian Husemann]

William schrieb:

> 
>  
>
>>William wrote:
>>    
>>
>>>I am running 0.19 release-fixes compiled on a FC2 system. After 
>>>watching live tv for a while the frontend will just freeze. 
>>>      
>>>
>>I have not 
>>    
>>
>>>been able to figure out what to look for on this issue. When the 
>>>system fails, the hard drive light will run solid on  for a 
>>>      
>>>
>>good 3-4 
>>    
>>
>>>minutes. It almost looks like it may be updateing the allocation 
>>>tables or trying to fix an error. The file system is a pair of ide 
>>>drives in a LVM formatted with XFS. I dont think its an issue with 
>>>file size although the live tv files are usually ~4GB in size when 
>>>things fail. Any suggestions on what to check?
>>>
>>>TIA,
>>>Bill
>>>
>>>
>>>_______________________________________________
>>>mythtv-users mailing list
>>>mythtv-users at mythtv.org 
>>>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>>      
>>>
>>Bill,
>>
>>what about mythbackend.log, messages ....? Also imho your livetv file 
>>should be a ringbuffer and should grow to that size.
>>
>>Just my 2c.
>>
>>Christian
>>    
>>
>
>Thanks for responding. In 0.19 the live tv function writes a file just like
>any other recording. ASAIK the backend log shows nothing out of the
>ordinary. I may have to recompile with debugging enabled and try to get some
>log data. I was hoping to get some suggestions on where to look. Programs
>record just fine, even long ones like football games are fine. They play
>back fine too. Only live tv is affected. This has started since the changes
>to live tv from a buffer to a file. My suspicion is that tv is playing
>backing slightly faster than its recording and at some point the frontend
>requests data that is not there yet and hangs at that point. As a test, I
>had the wife pause live tv for 30-60 seconds to build up a buffer but I just
>realized that the recording ends and starts with a fresh filename when each
>show ends. Thats probably not going to help.
>
>
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>  
>
Bill,

why a debug compile? My ordinary mythbackend already offers everything 
you may need:

legolas ~ # mythbackend -v help
Verbose debug levels.
Accepts any combination (separated by comma) of:

  all           - ALL available debug output
  important     - Errors or other very important messages
  general       - General info
  record        - Recording related messages
  playback      - Playback related messages
  channel       - Channel related messages
  osd           - On-Screen Display related messages
  file          - File and AutoExpire related messages
  schedule      - Scheduling related messages
  network       - Network protocol related messages
  commflag      - Commercial Flagging related messages
  audio         - Audio related messages
  libav         - Enables libav debugging
  jobqueue      - JobQueue related messages
  siparser      - Siparser related messages
  eit           - EIT related messages
  vbi           - VBI related messages
  database      - Display all SQL commands executed
  dsmcc         - DSMCC carousel related messages
  mheg          - MHEG debugging messages
  timestamp     - Conditional data driven messages
  none          - NO debug output

The default for this program appears to be: '-v important,general'

Most options are additive except for none, all, and important.
These three are semi-explicit and take precedence over any
prior options given.  You can however use something like
'-v none,jobqueue' to get only JobQueue related messages
and override the default verbosity level.

The additive options may also be subtracted from 'all' by
prefixing them with 'no', so you may use '-v all,nodatabase'
to view all but database debug messages.

Some debug levels may not apply to this program.

legolas ~ #


You may start your backend with the record, playback and file option for 
a good start.

Again, just my 2c

PS: Why the hack no ringbuffer anymore???