[mythtv-users] Backend crashes all the time

Mogens Kjaer mk at lemo.dk
Mon Mar 3 10:16:34 UTC 2008


During the last week, I've had several
crashes on my backend.

$ /usr/local/bin/mythbackend --version
Please include all output in bug reports.
MythTV Version   : 16332
MythTV Branch    : trunk
Library API      : 0.21.20080224-1
Network Protocol : 40
Options compiled in:
  linux release using_oss using_backend using_dbox2 using_dvb 
using_frontend using_hdhomerun using_iptv using_ivtv using_joystick_menu 
using_v4l using_x11 using_xrandr using_xv using_bindings_perl 
using_bindings_python using_opengl using_ffmpeg_threads using_live

Sometimes when the backend crashes I just get a line
like:

# fgrep segfault /var/log/messages
Mar  3 09:22:22 mogens1 kernel: mythbackend[16969]: segfault at ce631207 
eip 0063bf94 esp abffcf1c error 5
Mar  3 09:23:27 mogens1 kernel: mythbackend[17088]: segfault at 1830c0b9 
eip 0063bf9a esp bff9a71c error 4

Sometimes I get a more detailed error message in
/var/log/mythtv/mythbackend.log:

*** glibc detected *** /usr/local/bin/mythbackend: malloc(): memory 
corruption (fast): 0x0828c467 ***
======= Backtrace: =========
/lib/libc.so.6[0x63e631]
/lib/libc.so.6(__libc_malloc+0x7e)[0x63f2ee]
/usr/lib/libstdc++.so.6(_Znwj+0x27)[0xae0b27]
/usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QString9setLengthEj+0x93)[0x4d2da463]
/usr/lib/qt-3.3/lib/libqt-mt.so.3[0x4d2dd354]
/usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZNK7QString3argExii+0x112)[0x4d2df9c2]
/usr/local/lib/libmythtv-0.21.so.0(_ZNK18SignalMonitorValue9GetStatusEv+0x1ff)[0xb77f1daf]
[0x8418148]
======= Memory map: ========

The whole logfile is available at:

http://www.lemo.dk/mythtv/mythbackend.log

How do I provide more information?

Mogens

-- 
Mogens Kjaer, mk at lemo.dk
http://www.lemo.dk


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