mythbackend crashed with SIGSEGV in __libc_start_main()

[odror]

it started when I typed

mythtv-setup

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: mythtv-backend 2:0.25.0~master.20120316.53761e2-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
Uname: Linux 3.2.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Sun Mar 18 10:01:47 2012
ExecutablePath: /usr/bin/mythbackend
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
Installed_mythtv_dbg: 0.0
ProcCmdline: /usr/bin/mythbackend --syslog local7 --user mythtv
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SegvAnalysis:
 Segfault happened at: 0x4e7fde: mov (%rdi),%rax
 PC (0x004e7fde) ok
 source "(%rdi)" (0x62006f004a0020) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: mythtv
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 __libc_start_main (main=0x422dd0, argc=5, ubp_av=0x7fff7d147c18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7d147c08) at libc-start.c:226
Title: mythbackend crashed with SIGSEGV in __libc_start_main()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: audio cdrom dialout video

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #949291, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.