[mythtv] segfault when starting playback / watching tv

mimo mimo at restoel.net
Tue Sep 30 01:20:09 UTC 2008


Forgot to mention the version number - it's
mythtv-frontend_0.21.0+fixes16838-0ubuntu3_i386:
MythTV Version   : 16838
MythTV Branch    : branches/release-0-21-fixes
Library API      : 0.21.20080304-1
Network Protocol : 40
Options compiled in:
 linux debug using_oss using_alsa using_arts using_jack using_backend
using_dbox2 using_dvb using_firewire using_frontend using_hdhomerun
using_iptv using_ivtv using_joystick_menu using_libfftw3 using_lirc
using_opengl_vsync using_opengl_video using_v4l using_x11 using_xrandr
using_xv using_xvmc using_xvmcw using_xvmc_vld using_glx_proc_addr_arb
using_bindings_perl using_bindings_python using_opengl
using_ffmpeg_threads using_libavc_5_3 using_live

Please note - and I'm already kicking myself - that it could be unrelated
to mythtv as it doesn't happen using a different (fresh) user account
under a second x session.

thanks

mimo

> On 09/29/2008 06:39 PM, mimo wrote:
>> this is on the frontend. I have recompiled with debug enabled here's the
>> output. I'm on kubuntu hardy. Remote frontend, connecting over wireless.
>> I'm on a Mobile P3.
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> [Switching to Thread 0xb1682b90 (LWP 12146)]
>> 0xb7f52b9d in ?? () from /lib/ld-linux.so.2
>>
> ...
>> Thread 11 (Thread 0xb1682b90 (LWP 12146)):
>> #0  0xb7f52b9d in ?? () from /lib/ld-linux.so.2
>> No symbol table info available.
>> #1  0xb676ecb4 in ?? () from /lib/tls/i686/cmov/libdl.so.2
>> No symbol table info available.
>> #2  0xb7f4d5c6 in ?? () from /lib/ld-linux.so.2
>> No symbol table info available.
>> #3  0xb676f2bc in ?? () from /lib/tls/i686/cmov/libdl.so.2
>> No symbol table info available.
>> #4  0xb676ecea in dlclose () from /lib/tls/i686/cmov/libdl.so.2
>> No symbol table info available.
>> #5  0xb5d867bd in ?? () from /usr/lib/libGL.so.1
>> No symbol table info available.
>> #6  0xb5d6684a in ?? () from /usr/lib/libGL.so.1
>> No symbol table info available.
>> #7  0xb5c4e975 in _XFreeExtData () from /usr/lib/libX11.so.6
>> No symbol table info available.
>> #8  0xb5c5ae53 in _XFreeDisplayStructure () from /usr/lib/libX11.so.6
>> No symbol table info available.
>> #9  0xb5c47fc6 in XCloseDisplay () from /usr/lib/libX11.so.6
>> No symbol table info available.
>> #10 0xb7afcd9d in get_glx_version () from /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #11 0xb7afd8ad in OpenGLContext::IsGLXSupported () from
>> /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #12 0xb7ace8dc in ?? () from /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #13 0xb7aceae5 in ?? () from /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #14 0xb7acedab in VideoOutputXv::GetAllowedRenderers () from
>> /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #15 0xb7a83988 in VideoOutput::Create () from
>> /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #16 0xb79d4554 in NuppelVideoPlayer::InitVideo () from
>> /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #17 0xb79d847e in NuppelVideoPlayer::StartPlaying () from
>> /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #18 0xb7996205 in SpawnDecode () from /usr/lib/libmythtv-0.21.so.0
>> No symbol table info available.
>> #19 0xb5c204fb in start_thread () from
>> /lib/tls/i686/cmov/libpthread.so.0
>> No symbol table info available.
>> #20 0xb5a7ee5e in clone () from /lib/tls/i686/cmov/libc.so.6
>> No symbol table info available.
>
> This looks like the ld-linux/libGL segfault that was pretty common with
> the Ubuntu builds for a while after 0.21 came out.  I haven't heard much
> about them, lately, so I'm guessing the Ubuntu packaging wizards got it
> figured out.  You may want to check in #ubuntu-mythtv on freenode to see
> what they did/what they know.  Chances are you just need to build it
> differently.
>
> Mike
>
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