[mythtv-commits] Ticket #11473: Mythbackend deadlocks listing recordings

MythTV noreply at mythtv.org
Mon Apr 1 01:58:16 UTC 2013 

#11473: Mythbackend deadlocks listing recordings
------------------------+--------------------------------------------
 Reporter:  qbasicer@…  |           Type:  Bug Report - Hang/Deadlock
   Status:  new         |       Priority:  major
Milestone:  unknown     |      Component:  MythTV - General
  Version:  0.26-fixes  |       Severity:  high
 Keywords:              |  Ticket locked:  0
------------------------+--------------------------------------------
 New to MythTV - I have a master backend that records the TV (it has a
 better driver for the 950q).  Everything has been working fine for weeks
 with not much issue, until last night.  I apologize that I don't quite
 know where this should be filed, and have tried to include as much
 information as I can.  I'm basically dead in the water until I get a
 resolution here so I hope something is found quickly!

 I had a recording setup to record a hockey game, and after that, the
 backend would deadlock listing the recordings.

 The master is Gentoo, with MythTV version:
 mythbackend version: fixes/0.26 [v0.26.0] www.mythtv.org
 media-tv/mythtv-0.26.0_p20130207

 The slave is Mythbuntu running:
 mythbackend version: fixes/0.26 [v0.26.0-138-g69cd78b] www.mythtv.org

 The frontends (both of them, the slave AND the master), both keep
 repeating:
 2013-03-31 21:53:30.419732 E  Connection to master server timed out.
                         Either the server is down or the master server
 settings
                         in mythtv-settings does not contain the proper IP
 address

 2013-03-31 21:53:35.419907 I  MythCoreContext: Connecting to backend
 server: 192.168.1.201:6543 (try 1 of 1)

 The backend logs don't really show much:

 2013-03-31 21:33:25.096039 I [2459/2829] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:33:25.096055 I [2459/2829] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 0)
 2013-03-31 21:33:25.097485 I [2459/2829] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:33:25.097501 I [2459/2829] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 1)
 2013-03-31 21:33:33.149038 N [2459/2747] Expire autoexpire.cpp:264
 (CalcParams) - AutoExpire: CalcParams(): Max required Free Space: 1.0 GB
 w/freq: 15 min
 2013-03-31 21:33:57.433218 I [2459/2830] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:33:57.433234 I [2459/2830] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 2)
 2013-03-31 21:33:59.313830 I [2459/2830] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:33:59.313843 I [2459/2830] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 0)
 2013-03-31 21:33:59.315347 I [2459/2830] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:33:59.315366 I [2459/2830] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 1)
 2013-03-31 21:33:59.401235 I [2459/2831] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:33:59.401249 I [2459/2831] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 2)
 2013-03-31 21:34:29.322178 I [2459/2832] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:34:29.322191 I [2459/2832] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 0)
 2013-03-31 21:34:59.428826 I [2459/2832] ProcessRequest
 mainserver.cpp:1395 (HandleAnnounce) - MainServer::ANN Monitor
 2013-03-31 21:34:59.428839 I [2459/2832] ProcessRequest
 mainserver.cpp:1397 (HandleAnnounce) - adding: pancake as a client
 (events: 2)

 GDB locked up when I both attached or ran under GDB, so I set it up to
 core dump on a signal and captured this stacktrace.  Sorry I can't tell
 you what looks good and what doesn't.

 Thread 26 (Thread 0x7f09a53ea700 (LWP 3052)):
 #0  0x00007f09ee952523 in select () from /lib64/libc.so.6
 #1  0x00007f09f87261ab in SSDP::run() () from
 /usr/lib64/libmythupnp-0.26.so.0
 #2  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #3  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #4  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 25 (Thread 0x7f09a4be9700 (LWP 3053)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdfded8 in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09efdfe6c0 in QThread::msleep(unsigned long) () from
 /usr/lib64/qt4/libQtCore.so.4
 #3  0x00007f09f872868a in TaskQueue::run() () from
 /usr/lib64/libmythupnp-0.26.so.0
 #4  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 24 (Thread 0x7f090e7fc700 (LWP 3057)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f83652c2 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #3  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 23 (Thread 0x7f09c4b0a700 (LWP 3046)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f902b0b6 in TVRec::run() () from
 /usr/lib64/libmythtv-0.26.so.0
 #3  0x00007f09f835eb07 in MThread::run() () from
 /usr/lib64/libmythbase-0.26.so.0
 #4  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 22 (Thread 0x7f09a67fc700 (LWP 3050)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f8b2da25 in JobQueue::ProcessQueue() () from
 /usr/lib64/libmythtv-0.26.so.0
 #3  0x00007f09f835eb07 in MThread::run() () from
 /usr/lib64/libmythbase-0.26.so.0
 #4  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 21 (Thread 0x7f090f7fe700 (LWP 3055)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x000000000048f5ba in ?? ()
 #3  0x00007f09f8365116 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #4  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 20 (Thread 0x7f09c67fc700 (LWP 3045)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f902b0b6 in TVRec::run() () from
 /usr/lib64/libmythtv-0.26.so.0
 #3  0x00007f09f835eb07 in MThread::run() () from
 /usr/lib64/libmythbase-0.26.so.0
 #4  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 19 (Thread 0x7f09c57fa700 (LWP 3040)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f83a554f in MythSignalingTimer::run() () from
 /usr/lib64/libmythbase-0.26.so.0
 #3  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 18 (Thread 0x7f090ffff700 (LWP 3054)):
 #0  0x00007f09ee94ff1d in poll () from /lib64/libc.so.6
 #1  0x00007f09ef697956 in ?? () from /usr/lib64/libglib-2.0.so.0
 #2  0x00007f09ef697a74 in g_main_context_iteration () from
 /usr/lib64/libglib-2.0.so.0
 #3  0x00007f09eff2f096 in
 QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
 () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09efefea42 in
 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09efefec97 in
 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #6  0x00007f09efdfc1f7 in QThread::exec() () from
 /usr/lib64/qt4/libQtCore.so.4
 #7  0x00007f09f835eb19 in MThread::run() () from
 /usr/lib64/libmythbase-0.26.so.0
 #8  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #9  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #10 0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 17 (Thread 0x7f090effd700 (LWP 3056)):
 #0  0x00007f09ee952523 in select () from /lib64/libc.so.6
 #1  0x00007f09f8375b33 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #2  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #3  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #4  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 16 (Thread 0x7f09c6ffd700 (LWP 3036)):
 #0  0x00007f09ef43ce0c in pthread_cond_wait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff7cb in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f8488b62 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #3  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 15 (Thread 0x7f09c77fe700 (LWP 3034)):
 #0  0x00007f09ef4404bd in nanosleep () from /lib64/libpthread.so.0
 #1  0x00007f09f8489433 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #2  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #3  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #4  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 14 (Thread 0x7f09a5ffb700 (LWP 3051)):
 #0  0x00007f09ef43ce0c in pthread_cond_wait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09f1865522 in ?? () from /usr/lib64/qt4/libQtScript.so.4
 #2  0x00007f09f1865559 in ?? () from /usr/lib64/qt4/libQtScript.so.4
 #3  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #4  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 13 (Thread 0x7f09dac59700 (LWP 3028)):
 #0  0x00007f09ee95a033 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007f09f22fad30 in ?? () from /usr/lib64/libmythzmq.so.1
 #2  0x00007f09f230b576 in ?? () from /usr/lib64/libmythzmq.so.1
 #3  0x00007f09f1c301b4 in ?? () from /usr/lib64/libGL.so.1
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 12 (Thread 0x7f09c5ffb700 (LWP 3037)):
 #0  0x00007f09ef43ce0c in pthread_cond_wait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff7cb in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f8488b62 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #3  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 11 (Thread 0x7f090dffb700 (LWP 3058)):
 #0  0x00007f09ee94a7d5 in __xstat64 () from /lib64/libc.so.6
 #1  0x00007f09efed7490 in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09efe8e301 in QFileInfo::exists() const () from
 /usr/lib64/qt4/libQtCore.so.4
 #3  0x00007f09f83d9c6c in StorageGroup::FindFileDir(QString) ()
    from /usr/lib64/libmythbase-0.26.so.0
 #4  0x00007f09f83da530 in StorageGroup::FindFileDir(QString) ()
    from /usr/lib64/libmythbase-0.26.so.0
 #5  0x00007f09f83daaad in StorageGroup::FindFile(QString) ()
    from /usr/lib64/libmythbase-0.26.so.0
 #6  0x00007f09f7aa151e in ProgramInfo::GetPlaybackURL(bool, bool) const ()
    from /usr/lib64/libmyth-0.26.so.0
 #7  0x00000000004dbf94 in GetPlaybackURL(ProgramInfo*, bool) ()
 #8  0x0000000000469e6b in ?? ()
 #9  0x000000000048853e in ?? ()
 #10 0x000000000048acf8 in ?? ()
 #11 0x000000000048fc91 in ?? ()
 #12 0x00007f09f8365116 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #13 0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #14 0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #15 0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 10 (Thread 0x7f09d9c57700 (LWP 3030)):
 #0  0x00007f09ee95a033 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007f09f22fad30 in ?? () from /usr/lib64/libmythzmq.so.1
 #2  0x00007f09f230b576 in ?? () from /usr/lib64/libmythzmq.so.1
 #3  0x00007f09f1c301b4 in ?? () from /usr/lib64/libGL.so.1
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 9 (Thread 0x7f09d8c55700 (LWP 3032)):
 #0  0x00007f09ee95a033 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007f09f22fad30 in ?? () from /usr/lib64/libmythzmq.so.1
 #2  0x00007f09f230b576 in ?? () from /usr/lib64/libmythzmq.so.1
 #3  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #4  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 8 (Thread 0x7f09d9456700 (LWP 3031)):
 #0  0x00007f09ee95a033 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007f09f22fad30 in ?? () from /usr/lib64/libmythzmq.so.1
 #2  0x00007f09f230b576 in ?? () from /usr/lib64/libmythzmq.so.1
 #3  0x00007f09f1c301b4 in ?? () from /usr/lib64/libGL.so.1
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 7 (Thread 0x7f09da458700 (LWP 3029)):
 #0  0x00007f09ee95a033 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007f09f22fad30 in ?? () from /usr/lib64/libmythzmq.so.1
 #2  0x00007f09f230b576 in ?? () from /usr/lib64/libmythzmq.so.1
 #3  0x00007f09f1c301b4 in ?? () from /usr/lib64/libGL.so.1
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 6 (Thread 0x7f09c7fff700 (LWP 3033)):
 #0  0x00007f09ef4404bd in nanosleep () from /lib64/libpthread.so.0
 #1  0x00007f09f848a142 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #2  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #3  0x00007f09f1c301b4 in ?? () from /usr/lib64/libGL.so.1
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 5 (Thread 0x7f09a6ffd700 (LWP 3049)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x0000000000427ba2 in ?? ()
 #3  0x0000000000434e04 in ?? ()
 #4  0x0000000000435262 in ?? ()
 #5  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #6  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #7  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 4 (Thread 0x7f09a77fe700 (LWP 3048)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00000000004da8cd in ?? ()
 #3  0x00000000004db3d2 in ?? ()
 #4  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 3 (Thread 0x7f09a7fff700 (LWP 3047)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00000000004ce446 in ?? ()
 #3  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 2 (Thread 0x7f09db465700 (LWP 3027)):
 #0  0x00007f09ef43d1de in pthread_cond_timedwait@@GLIBC_2.3.2 () from
 /lib64/libpthread.so.0
 #1  0x00007f09efdff72f in QWaitCondition::wait(QMutex*, unsigned long) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #2  0x00007f09f84415a3 in ?? () from /usr/lib64/libmythbase-0.26.so.0
 #3  0x00007f09efdff25c in ?? () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09f1c301b4 in ?? () from /usr/lib64/libGL.so.1
 #5  0x00007f09ef438eb7 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007f09ee95999d in clone () from /lib64/libc.so.6

 Thread 1 (Thread 0x7f09e1b4f7c0 (LWP 3026)):
 #0  0x00007f09ee94ff1d in poll () from /lib64/libc.so.6
 #1  0x00007f09ef697956 in ?? () from /usr/lib64/libglib-2.0.so.0
 #2  0x00007f09ef697a74 in g_main_context_iteration () from
 /usr/lib64/libglib-2.0.so.0
 #3  0x00007f09eff2f02f in
 QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
 () from /usr/lib64/qt4/libQtCore.so.4
 #4  0x00007f09efefea42 in
 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #5  0x00007f09efefec97 in
 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
    from /usr/lib64/qt4/libQtCore.so.4
 #6  0x00007f09eff03ab5 in QCoreApplication::exec() () from
 /usr/lib64/qt4/libQtCore.so.4
 #7  0x000000000050d7f8 in ?? ()
 #8  0x00000000004267b3 in main ()

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/11473>
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