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

Sat Jun 16 13:30:39 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.  Should I keep adding additional faults to this
 ticket?

 {{{
 [111916.814043] mythbackend[23409]: segfault at 48 ip 00007f4f44d94f2f sp
 00007f4f35481c20 error 4 in libQtCore.so.4.7.4[7f4f44c16000+292000]
 }}}

 {{{
 Jun 16 04:49:28 pvr mythbackend[23405]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 16 04:53:46 pvr mythbackend[23405]: N Expire autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 16 04:54:28 pvr mythbackend[23405]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 16 04:59:29 pvr mythbackend[23405]: I TVRecEvent tv_rec.cpp:1521
 (HandlePendingRecordings) TVRec(6): ASK_RECORDING 6 29 0 0
 Jun 16 04:59:29 pvr mythbackend[23405]: I TVRecEvent tv_rec.cpp:1521
 (HandlePendingRecordings) TVRec(8): ASK_RECORDING 8 29 0 0
 Jun 16 04:59:31 pvr mythbackend[23405]: I HouseKeeping housekeeper.cpp:225
 (RunHouseKeeping) Running housekeeping thread
 Jun 16 04:59:59 pvr mythbackend[23405]: I TVRecEvent tv_rec.cpp:1014
 (HandleStateChange) TVRec(8): Changing from RecordingOnly to None
 Jun 16 04:59:59 pvr mythbackend[23405]: E RecThread mpegrecorder.cpp:1017
 (run) MPEGRec(/dev/video0): Device EOF detected
 Jun 16 04:59:59 pvr mythbackend[23405]: I TVRecEvent
 recordinginfo.cpp:1113 (FinishedRecording) Finished recording How It's
 Made: channel 4602
 Jun 16 04:59:59 pvr mythbackend[23405]: D PreviewGenerator system-
 unix.cpp:632 (Fork) Launching: /mythtv/latest/bin/mythpreviewgen --size
 0x0 --chanid 4602 --starttime 20120616043000 --verbose general,system
 --loglevel debug --quiet --syslog local7
 Jun 16 04:59:59 pvr mythbackend[23405]: I PreviewGenerator system-
 unix.cpp:735 (Fork) Managed child (PID: 16786) has started! *
 command=/mythtv/latest/bin/mythpreviewgen --size 0x0 --chanid 4602
 --starttime 20120616043000 --verbose general,system --loglevel debug
 --quiet --syslog local7, timeout=30
 Jun 16 05:00:00 pvr mythbackend[23405]: I TVRecEvent tv_rec.cpp:1014
 (HandleStateChange) TVRec(8): Changing from None to RecordingOnly
 Jun 16 05:00:00 pvr mythbackend[23405]: I TVRecEvent tv_rec.cpp:3459
 (TuningCheckForHWChange) TVRec(8): HW Tuner: 8->8
 Jun 16 05:00:00 pvr mythbackend[23405]: I TVRecEvent v4lchannel.cpp:661
 (SetInputAndFormat) V4LChannel(/dev/video0): SetInputAndFormat(6, NTSC)
 (v4l v2) input_switch: 0 mode_switch: 0
 Jun 16 05:00:00 pvr mythbackend[23405]: D TVRecEvent system-unix.cpp:632
 (Fork) Launching: /home/mythtv/bin/chchange.sh 607
 Jun 16 05:00:00 pvr mythbackend[23405]: I TVRecEvent system-unix.cpp:735
 (Fork) Managed child (PID: 16788) has started! *&
 command=/home/mythtv/bin/chchange.sh 607, timeout=0
 Jun 16 05:00:00 pvr mythbackend[23405]: N Scheduler autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 16 05:00:00 pvr mythbackend[23405]: I Scheduler scheduler.cpp:2460
 (HandleRecordingStatusChange) Tuning recording: "Disaster DIY":"Kitchen
 Attack": channel 3607 on cardid 8, sourceid 3
 Jun 16 05:00:00 pvr mythbackend[23405]: D PreviewGenerator system-
 unix.cpp:632 (Fork) Launching: /mythtv/latest/bin/mythpreviewgen --size
 0x0 --chanid 2511 --starttime 20120616040000 --verbose general,system
 --loglevel debug --quiet --syslog local7
 Jun 16 05:00:00 pvr mythbackend[23405]: I PreviewGenerator system-
 unix.cpp:735 (Fork) Managed child (PID: 16795) has started! *
 command=/mythtv/latest/bin/mythpreviewgen --size 0x0 --chanid 2511
 --starttime 20120616040000 --verbose general,system --loglevel debug
 --quiet --syslog local7, timeout=30
 Jun 16 05:00:03 pvr mythbackend[23405]: W Scheduler
 ThreadedFileWriter.cpp:301 (Flush)
 TFW(/storage/2511_20120616040000.mpg:34): Taking a long time to flush..
 buffer size 0
 Jun 16 05:00:03 pvr mythbackend[23405]: N Scheduler autoexpire.cpp:263
 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
 w/freq: 7 min
 Jun 16 05:00:03 pvr mythbackend[23405]: I Scheduler scheduler.cpp:2460
 (HandleRecordingStatusChange) Started recording: CityLine: channel 2511 on
 cardid 6, sourceid 2
 Jun 16 05:00:03 pvr mythbackend[23405]: I CoreContext scheduler.cpp:635
 (UpdateRecStatus) Updating status for "How It's Made" on cardid 8
 (Recording => Recorded)
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 0)
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 0)
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 1)
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
 Jun 16 05:00:03 pvr mythbackend[23405]: I ProcessRequest
 mainserver.cpp:1362 (HandleAnnounce) adding: pvr as a client (events: 1)
 Jun 16 05:00:03 pvr mythbackend[23405]: I HDHRStreamHandler
 mythdbcon.cpp:395 (PurgeIdleConnections) New DB connection, total: 11
 Jun 16 05:00:03 pvr mythbackend[23405]: I HDHRStreamHandler
 tv_rec.cpp:3256 (RingBufferChanged) TVRec(6): RingBufferChanged()
 Jun 16 05:00:03 pvr mythbackend[23405]: I CoreContext scheduler.cpp:635
 (UpdateRecStatus) Updating status for CityLine on cardid 6 (Recording =>
 Recorded)
 Jun 16 05:00:03 pvr mythbackend[23405]: E CoreContext mainserver.cpp:871
 (customEvent) MainServer: PREVIEW_SUCCESS but no receivers.
 Jun 16 05:00:03 pvr mythbackend[23405]: I HDHRStreamHandler
 recordinginfo.cpp:1113 (FinishedRecording) Finished recording CityLine:
 channel 2511
 Jun 16 05:00:04 pvr mythbackend[23405]: I SystemManager system-
 unix.cpp:342 (run) Managed child (PID: 16795) has exited!
 command=/mythtv/latest/bin/mythpreviewgen --size 0x0 --chanid 2511
 --starttime 20120616040000 --verbose general,system --loglevel debug
 --quiet --syslog local7, status=0, result=0
 }}}

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/10775#comment:10>
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