mythfrontend.real crashed with SIGSEGV in snd_pcm_state()

http://svn.mythtv.org/trac/ticket/8239

ProblemType: Crash
Architecture: i386
CrashDB: mythbuntu
Date: Sun Mar 28 18:20:02 2010
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/mythfrontend.real
InstallationMedia: Mythbuntu 9.10 "Karmic Koala" - Release i386 (20091028.4)
Installed_mythplugins-dbg: 0.23.0+fixes23789-0ubuntu0+mythbuntu1
Installed_mythtv-dbg: 0.23.0+fixes23825-0ubuntu0+mythbuntu1
MythTVDirectoryPermissions: lrwxrwxrwx 1 root root 20 2010-03-06 08:40 /var/lib/mythtv -> /opt/storage/mythtv/
NonfreeKernelModules: nvidia
Package: mythtv-frontend 0.23.0+fixes23825-0ubuntu0+mythbuntu1
ProcCmdline: /usr/bin/hostnamefrontend.real
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-20.58-generic
SegvAnalysis:
 Segfault happened at: 0x2e40b79 <snd_pcm_state+25>: mov 0xf4(%eax),%edx
 PC (0x02e40b79) ok
 source "0xf4(%eax)" (0xfef0fff9) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: mythtv
StacktraceTop:
 snd_pcm_state () from /usr/lib/libasound.so.2
 AudioOutputALSA::GetBufferedOnSoundcard (this=0xb20c2008)
 AudioOutputBase::SetAudiotime (this=0xb20c2008)
 AudioOutputBase::OutputAudioLoop (this=0xb20c2008)
 AudioOutputBase::run (this=0xb20c2008)
Title: mythfrontend.real crashed with SIGSEGV in snd_pcm_state()
Uname: Linux 2.6.31-20-generic i686
UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare video
XsessionErrors:
 (xfce4-cpugraph-plugin:7593): Gtk-CRITICAL **: gtk_container_set_border_width: assertion `GTK_IS_CONTAINER (container)' failed
 (polkit-gnome-authentication-agent-1:7612): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (xfce4-terminal:7638): Terminal-WARNING **: Unable to load terminal preferences.