[mythtv-commits] Ticket #9868: Hang in Live TV channel change

[MythTV]

#9868: Hang in Live TV channel change
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     Reporter:  skd5aner             |      Owner:  janne
  <skd5aner@…>                       |     Status:  new
         Type:  Bug Report -         |  Milestone:  unknown
  Hang/Deadlock                      |    Version:  0.24-fixes
     Priority:  minor                |   Keywords:  Live TV, channel
    Component:  MythTV - Video       |  changing, hang
  Playback                           |
     Severity:  medium               |
Ticket locked:  0                    |
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 mythfrontend will sometimes hang while attempting a channel change within
 live tv.  While I'm not exactly sure how to replicate this on demand, it
 is something that occurs frequently enough that anytime I have guests over
 who use Live TV, I inevitably have to restart the frontend due to this
 issue.

 Simply, while watching live tv, when attempting to switch to another
 channel, the screen will turn black (if changing from the guide, you'll
 see the theme background image for several seconds before turning black),
 and become unresponsive to any input via lirc, keyboard, or otherwise.  No
 dialog boxes or OSD information is displayed.  The OS will respond to
 keyboard commands such as alt-tab in which I can bring focus to a console
 and kill the frontend that way.  This occurs "randomly", at least from
 what I can tell as successful channel changes occur about ~85-90% of the
 time.

 I've attached a backtrace (compiled source in "profile"), a mythfrontend
 -v playback,channel, and a master mythbackend -v file,channel,record.  I
 also have a slave mythbackend log as well, but I do not think it's
 necessary to attach yet since none of the tuners attached to it were used
 while attempting to watch Live TV.  If asked, I can attach it upon
 request.

 If there are any additional details needed, please let me know and I'll do
 my best to provide/test whatever I can.

 Thank you in advance!

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Ticket URL: <http://code.mythtv.org/trac/ticket/9868>
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