myth@master /usr/local/bin $ ./mythbackend --version
Please attach all output as a file in bug reports.
MythTV Version : v0.26.0-53-gb28041a-dirty
MythTV Branch : fixes/0.26
Network Protocol : 75
Library API : 0.26.20120822-1
QT Version : 4.8.1
Options compiled in:
 linux profile use_hidesyms using_alsa using_jack using_oss using_pulse using_pulseoutput using_backend using_bindings_perl using_bindings_python using_bindings_php using_dvb using_firewire using_frontend using_hdhomerun using_ceton using_hdpvr using_iptv using_ivtv using_joystick_menu using_libcec using_libcrypto using_libdns_sd using_libfftw3 using_libxml2 using_lirc using_mheg using_opengl_video using_qtwebkit using_qtscript using_qtdbus using_v4l2 using_x11 using_xrandr using_xv using_bindings_perl using_bindings_python using_bindings_php using_mythtranscode using_opengl using_vdpau using_ffmpeg_threads using_live using_mheg using_libass using_libxml2

(Output from: gdb)
...
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/local/bin/mythbackend --daemon --pidfile /var/run/mythtv/mythbackend.pid -'.
Program terminated with signal 11, Segmentation fault.
#0  MythSocket::state (this=0x0) at mythsocket.cpp:114
114         return m_state;
(gdb) bt
#0  MythSocket::state (this=0x0) at mythsocket.cpp:114
#1  0x00007fa05797fb1c in MythSocket::readStringList (this=0x0, list=..., timeoutMS=30000) at mythsocket.cpp:503
#2  0x000000000048d446 in PlaybackSock::SendReceiveStringList (this=0x7f9fd800bf30, strlist=..., min_reply_length=1) at playbacksock.cpp:88
#3  0x000000000048f285 in PlaybackSock::IsBusy (this=0x7f9fd800bf30, capturecardnum=4, busy_input=0x0, time_buffer=5) at playbacksock.cpp:328
#4  0x000000000046921a in MainServer::GetCurrentMaxBitrate (this=0xf2f960) at mainserver.cpp:4359
#5  0x000000000047f8b3 in MainServer::BackendQueryDiskSpace (this=0xf2f960, strlist=..., consolidated=true, allHosts=true) at mainserver.cpp:4533
#6  0x000000000048c57b in FreeSpaceUpdater::run (this=0xf22ed0) at mainserver.cpp:179
#7  0x00007fa057979346 in MPoolThread::run (this=0xf23c90) at mthreadpool.cpp:87
#8  0x00007fa054f13fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fa0498e0734 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#10 0x00007fa056caee9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fa0543bacbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()
(gdb) frame
#0  MythSocket::state (this=0x0) at mythsocket.cpp:114
114         return m_state;
(gdb) up
#1  0x00007fa05797fb1c in MythSocket::readStringList (this=0x0, list=..., timeoutMS=30000) at mythsocket.cpp:503
503         if (state() != Connected)
(gdb) up
#2  0x000000000048d446 in PlaybackSock::SendReceiveStringList (this=0x7f9fd800bf30, strlist=..., min_reply_length=1) at playbacksock.cpp:88
88              ok = sock->readStringList(strlist);

(mythbacked.log file)
2012-12-21 18:55:02.134910 E [9012/9076] FreeSpaceUpdater mythsocket.cpp:549 (readStringList) - MythSocket(fa0890:66): readStringList: Connection died (select).
2012-12-21 18:55:02.134931 E [9012/9076] FreeSpaceUpdater playbacksock.cpp:114 (SendReceiveStringList) - PlaybackSock::SendReceiveStringList(): No response.
2012-12-21 18:55:02.135008 E [9012/9076] FreeSpaceUpdater mainserver.cpp:5740 (connectionClosed) - Slave backend: slave1 no longer connected
2012-12-21 18:55:02.135078 W [9012/9076] FreeSpaceUpdater mainserver.cpp:5841 (connectionClosed) - MainServer: Unknown socket closing MythSocket(0xfa0890)
2012-12-21 18:55:02.135252 I [9012/9012] CoreContext mythdbcon.cpp:409 (PurgeIdleConnections) - New DB connection, total: 11
2012-12-21 18:55:02.136268 E [9012/9076] FreeSpaceUpdater mythsocket.cpp:344 (writeStringList) - MythSocket(fa0890:-1): writeStringList: Error, socket went unconnected.
                        We wrote 0 of 47 bytes with 1 errors
                        starts with: 39      QUERY_REMOTEENCODER 4[]:[]IS_BUSY[]:[]5
2012-12-21 18:55:02.137139 I [9012/9059] Scheduler scheduler.cpp:2129 (HandleReschedule) - Reschedule requested for PLACE SlaveDisconnected
2012-12-21 18:55:02.138243 I [9012/9060] HouseKeeping housekeeper.cpp:221 (RunHouseKeeping) - Running housekeeping thread
2012-12-21 18:55:02.251300 C [9012/9012] CoreContext signalhandling.cpp:305 (handleSignal) - Received Segmentation fault: Code 1, PID 100, UID 0, Value 0x7fa054f5e612
