[mythtv-commits] Ticket #8199: backend lockup on recording expiry

[MythTV]

#8199: backend lockup on recording expiry
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 Reporter:  michael_zanetti@…        |        Owner:  danielk   
     Type:  defect                   |       Status:  new       
 Priority:  trivial                  |    Milestone:  unknown   
Component:  MythTV - Recording       |      Version:  0.22-fixes
 Severity:  medium                   |   Resolution:            
  Mlocked:  0                        |  
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Comment(by dude71@…):

 I also changed my recordings partition from EXT4 to XFS. Now on XFS the
 same thing happens when on EXT4; incomplete recordings, hanging backend
 process (frontends see empty recordings screen, cannot start livetv). This
 happens especially when a  recording starts on second DVB card while
 watching livetv on the first. My recordings partition is fine, I can read
 and write to it no problem (when backend process in bad state) with more
 than enough free space.

 Then I started experimenting with the signal/channel timeout and dvb
 tuning delay settings. I upped those values (can't give you the exact
 values right now i'm not at home) and things improved a bit. It still
 hangs sometimes but less often. Also when I'm watching livetv normally and
 I exit to the main menu I sometimes can't restart livetv or get in the
 recordings screen. Again restarting the backend process (on separate
 server) does the trick. But at least I'm now able to record of multiple
 cards at once without hanging up the backend process all the time.

 Somehow the backend process gets into a state where it doesn't handle
 frontend connections normally anymore and is not able to record of the DVB
 cards while the rest of the system is performing normally. Even if the DVB
 part is to blame somehow, the frontends should be able to get into
 recordings and stream a recording. Still looks like a bug to me.

 Grntx,

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Ticket URL: <http://svn.mythtv.org/trac/ticket/8199#comment:12>
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