mythfrontend.real crashed with SIGSEGV in MythPlayer::VideoLoop()

[Glenn Brumfield]

After most recent update, mythfrontend crashed, restarted and automatically generated this bug report.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: mythtv-frontend 2:0.27.4+fixes.20150423.8f14d3d-0ubuntu0mythbuntu3 [origin: LP-PPA-mythbuntu-0.27]
ProcVersionSignature: Ubuntu 3.16.0-34.47~14.04.1-generic 3.16.7-ckt8
Uname: Linux 3.16.0-34-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
CrashCounter: 1
CrashDB: mythbuntu
CurrentDesktop: XFCE
Date: Thu Apr 23 18:59:31 2015
ExecutablePath: /usr/bin/mythfrontend.real
InstallationDate: Installed on 2015-03-10 (45 days ago)
InstallationMedia: Mythbuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
Installed_mythtv_dbg: 2:0.27.4+fixes.20150423.8f14d3d-0ubuntu0mythbuntu3
ProcCmdline: /usr/bin/mythfrontend.real --syslog local7
ProcEnviron:
 LANGUAGE=en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f5fd7798b3f <MythPlayer::VideoLoop()+281>: mov (%rax),%rax
 PC (0x7f5fd7798b3f) ok
 source "(%rax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: mythtv
StacktraceTop:
 MythPlayer::VideoLoop (this=0xbb3c780) at mythplayer.cpp:2425
 TV::PlaybackLoop (this=0xb7b02f0) at tv_play.cpp:1444
 TV::StartTV (tvrec=0x0, flags=0, selection=...) at tv_play.cpp:413
 startTVNormal () at main.cpp:604
 TVMenuCallback (data=0x281ee10, selection=...) at main.cpp:809
Title: mythfrontend.real crashed with SIGSEGV in MythPlayer::VideoLoop()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin mythtv plugdev sambashare sudo video
XsessionErrors:
 (xfwm4:1485): xfwm4-WARNING **: The display does not support the XComposite extension.
 (xfwm4:1485): xfwm4-WARNING **: Compositing manager disabled.
 (polkit-gnome-authentication-agent-1:1503): GLib-CRITICAL **: g_variant_new_string: assertion 'string != NULL' failed
 (polkit-gnome-authentication-agent-1:1503): polkit-gnome-1-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files