[mythtv-commits] Ticket #12367: Mythfrontend and mythbackend both crash when trying to change channel in liveTV

[MythTV]

#12367: Mythfrontend and mythbackend both crash when trying to change channel in
liveTV
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     Reporter:  eorndil@…             |      Owner:
         Type:  Bug Report - General  |     Status:  new
     Priority:  major                 |  Milestone:  unknown
    Component:  MythTV - DVB          |    Version:  0.27.4
     Severity:  high                  |   Keywords:
Ticket locked:  0                     |
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 Hello,

 I've read many threads about similar problems, but didn't find the
 solution.
 When I'm watching LiveTV, I can't change channel without bug of the
 frontend wich send me back to the menu ans being frozen.

 It was working fine when the Backend and Frontend was on the same server,
 since I've installed a dedicated backend, it doesn't work.

 I first read that the livetv storage should not be on a Raid array, so I
 put it on a stand alone partition with 600Gb space.

 I then downgrade from 0.28 to 0.27.4...

 Tried to change the video codec (ffmpeg, vdpau low quality...)

 I've run the backend with full verbose options, when I chanhe the channel,
 it flood this before stopping :

 2015-02-07 00:34:40.534056 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): rbwpos +=   0K requested
 128K in read
 2015-02-07 00:34:40.534066 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): total read so far:
 10587972 bytes
 2015-02-07 00:34:40.534079 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): EOF encountered, but
 /media/livetv/1283_20150206233422.mpg still being written to
 2015-02-07 00:34:40.574265 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): @ end of read ahead loop
 2015-02-07 00:34:40.579452 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): safe_read(... at 2199364,
 131072) -- begin
 2015-02-07 00:34:40.579474 D
 FileRingBuf(/media/livetv/1283_20150206233422.mpg): not reading, reached
 EOF
 2015-02-07 00:34:40.579502 I
 RingBuf(/media/livetv/1283_20150206233422.mpg): safe_read(... at 2199364,
 131072) -> 0, took 0 ms (1000Mbps) avg 270 ms
 2015-02-07 00:34:40.579516 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): rbwpos +=   0K requested
 128K in read
 2015-02-07 00:34:40.579527 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): total read so far:
 10587972 bytes
 2015-02-07 00:34:40.579540 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): EOF encountered, but
 /media/livetv/1283_20150206233422.mpg still being written to
 2015-02-07 00:34:40.639691 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): @ end of read ahead loop
 2015-02-07 00:34:40.644860 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): safe_read(... at 2199364,
 131072) -- begin
 2015-02-07 00:34:40.644883 D
 FileRingBuf(/media/livetv/1283_20150206233422.mpg): not reading, reached
 EOF
 2015-02-07 00:34:40.644911 I
 RingBuf(/media/livetv/1283_20150206233422.mpg): safe_read(... at 2199364,
 131072) -> 0, took 0 ms (1000Mbps) avg 270 ms
 2015-02-07 00:34:40.644925 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): rbwpos +=   0K requested
 128K in read
 2015-02-07 00:34:40.644935 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): total read so far:
 10587972 bytes
 2015-02-07 00:34:40.644948 D
 RingBuf(/media/livetv/1283_20150206233422.mpg): EOF encountered, but
 /media/livetv/1283_20150206233422.mpg still being written to


 Version:

 Please attach all output as a file in bug reports.
 MythTV Version : v0.27.4-30-g3b43903
 MythTV Branch : fixes/0.27
 Network Protocol : 77
 Library API : 0.27.20141016-1
 QT Version : 4.8.6
 Options compiled in:
  linux profile use_hidesyms using_alsa using_oss using_pulse
 using_pulseoutput using_backend using_bindings_perl using_bindings_python
 using_bindings_php using_crystalhd using_dvb using_firewire using_frontend
 using_hdhomerun using_ceton using_hdpvr using_ivtv using_joystick_menu
 using_libcrypto using_libdns_sd using_libfftw3 using_libxml2 using_lirc
 using_mheg using_opengl using_opengl_video using_qtwebkit using_qtscript
 using_qtdbus using_sdl using_taglib using_v4l2 using_x11 using_xrandr
 using_xv using_profiletype using_bindings_perl using_bindings_python
 using_bindings_php using_mythtranscode using_opengl using_vaapi
 using_vdpau using_ffmpeg_threads using_mheg using_libass using_libxml2

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Ticket URL: <https://code.mythtv.org/trac/ticket/12367>
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