[mythtv-commits] Ticket #10775: Segfault in mythbackend (libQtCore.so.4.7.4)

MythTV noreply at mythtv.org
Wed Jun 13 22:58:04 UTC 2012


#10775: Segfault in mythbackend (libQtCore.so.4.7.4)
----------------------------------------------+----------------------------
 Reporter:  ajm1@…                            |          Owner:
     Type:  Bug Report - Crash                |         Status:
 Priority:  minor                             |  infoneeded_new
Component:  MythTV - General                  |      Milestone:  unknown
 Severity:  medium                            |        Version:  0.25-fixes
 Keywords:  mythbackend, segfault, libQtCore  |     Resolution:
                                              |  Ticket locked:  0
----------------------------------------------+----------------------------

Comment (by ajm1@…):

 Hit segfault again:
 {{{
 [727119.016694] mythbackend[23575]: segfault at 48 ip 00007f847e56acbd sp
 00007f846ec56cd0 error 4 in libQtCore.so.4.7.4[7f847e3eb000+292000]
 }}}

 Not sure how much of the backend log is useful to you.
 {{{
 Jun 13 06:30:12 pvr mythbackend[23571]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 13 06:32:26 pvr mythbackend[23571]: N Expire autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 13 06:35:12 pvr mythbackend[23571]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 13 06:37:01 pvr mythbackend[23571]: I SystemManager system-
 unix.cpp:342 (run) Managed child (PID: 26609) has exited!
 command=/mythtv/latest/bin/mythcommflag -j 12591 --noprogress --verbose
 general,system --loglevel debug --quiet --syslog local7, status=0,
 result=0
 Jun 13 06:37:01 pvr mythbackend[23571]: D Commflag_12591 system-
 unix.cpp:632 (Fork) Launching: /mythtv/latest/bin/mythpreviewgen --size
 0x0 --chanid 4054 --starttime 20120613054900 --verbose general,system
 --loglevel debug --quiet --syslog local7
 Jun 13 06:37:01 pvr mythbackend[23571]: I Commflag_12591 system-
 unix.cpp:735 (Fork) Managed child (PID: 26904) has started! *
 command=/mythtv/latest/bin/mythpreviewgen --size 0x0 --chanid 4054
 --starttime 20120613054900 --verbose general,system --loglevel debug
 --quiet --syslog local7, timeout=30
 Jun 13 06:37:01 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 13 06:37:01 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 0)
 Jun 13 06:37:01 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 13 06:37:01 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 1)
 Jun 13 06:37:04 pvr mythbackend[23571]: I SystemManager system-
 unix.cpp:342 (run) Managed child (PID: 26904) has exited!
 command=/mythtv/latest/bin/mythpreviewgen --size 0x0 --chanid 4054
 --starttime 20120613054900 --verbose general,system --loglevel debug
 --quiet --syslog local7, status=0, result=0
 Jun 13 06:39:26 pvr mythbackend[23571]: N Expire autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 13 06:40:18 pvr mythbackend[23571]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 13 06:45:25 pvr mythbackend[23571]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 13 06:46:26 pvr mythbackend[23571]: N Expire autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 13 06:50:32 pvr mythbackend[23571]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 13 06:53:26 pvr mythbackend[23571]: N Expire autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 13 06:55:38 pvr mythbackend[23571]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 13 06:59:29 pvr mythbackend[23571]: I TVRecEvent tv_rec.cpp:1521
 (HandlePendingRecordings) TVRec(8): ASK_RECORDING 8 29 0 0
 Jun 13 06:59:59 pvr mythbackend[23571]: I TVRecEvent tv_rec.cpp:1014
 (HandleStateChange) TVRec(8): Changing from RecordingOnly to None
 Jun 13 07:00:00 pvr mythbackend[23571]: E RecThread mpegrecorder.cpp:1017
 (run) MPEGRec(/dev/video0): Device EOF detected
 Jun 13 07:00:02 pvr mythbackend[23571]: D PreviewGenerator system-
 unix.cpp:632 (Fork) Launching: /mythtv/latest/bin/mythpreviewgen --size
 0x0 --chanid 4054 --starttime 20120613062500 --verbose general,system
 --loglevel debug --quiet --syslog local7
 Jun 13 07:00:02 pvr mythbackend[23571]: I PreviewGenerator system-
 unix.cpp:735 (Fork) Managed child (PID: 26927) has started! *
 command=/mythtv/latest/bin/mythpreviewgen --size 0x0 --chanid 4054
 --starttime 20120613062500 --verbose general,system --loglevel debug
 --quiet --syslog local7, timeout=30
 Jun 13 07:00:02 pvr mythbackend[23571]: I TVRecEvent
 recordinginfo.cpp:1113 (FinishedRecording) Finished recording CTV News:
 channel 4054
 Jun 13 07:00:02 pvr mythbackend[23571]: I TVRecEvent tv_rec.cpp:1014
 (HandleStateChange) TVRec(8): Changing from None to RecordingOnly
 Jun 13 07:00:02 pvr mythbackend[23571]: I TVRecEvent tv_rec.cpp:3459
 (TuningCheckForHWChange) TVRec(8): HW Tuner: 8->8
 Jun 13 07:00:02 pvr mythbackend[23571]: I TVRecEvent v4lchannel.cpp:661
 (SetInputAndFormat) V4LChannel(/dev/video0): SetInputAndFormat(6, NTSC)
 (v4l v2) input_switch: 0 mode_switch: 0
 Jun 13 07:00:02 pvr mythbackend[23571]: D TVRecEvent system-unix.cpp:632
 (Fork) Launching: /home/mythtv/bin/chchange.sh 804
 Jun 13 07:00:02 pvr mythbackend[23571]: I TVRecEvent system-unix.cpp:735
 (Fork) Managed child (PID: 26929) has started! *&
 command=/home/mythtv/bin/chchange.sh 804, timeout=0
 Jun 13 07:00:02 pvr mythbackend[23571]: N Scheduler autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 13 07:00:02 pvr mythbackend[23571]: I Scheduler scheduler.cpp:2460
 (HandleRecordingStatusChange) Tuning recording: "CBC News Now": channel
 3804 on cardid 8, sourceid 3
 Jun 13 07:00:02 pvr mythbackend[23571]: I CoreContext scheduler.cpp:635
 (UpdateRecStatus) Updating status for "CTV News" on cardid 8 (Recording =>
 Recorded)
 Jun 13 07:00:02 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 13 07:00:02 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 0)
 Jun 13 07:00:02 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 13 07:00:02 pvr mythbackend[23571]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 1)
 Jun 13 07:00:05 pvr mythbackend[23571]: I SystemManager system-
 unix.cpp:342 (run) Managed child (PID: 26927) has exited!
 command=/mythtv/latest/bin/mythpreviewgen --size 0x0 --chanid 4054
 --starttime 20120613062500 --verbose general,system --loglevel debug
 --quiet --syslog local7, status=0, result=0
 Jun 13 07:00:07 pvr mythbackend[23571]: I SystemManager system-
 unix.cpp:342 (run) Managed child (PID: 26929) has exited!
 command=/home/mythtv/bin/chchange.sh 804, status=0, result=0
 }}}

 Another backtrace is attached. (mythbackend-20120613.txt)

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/10775#comment:7>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center


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