Comment 9 for bug 267274

I've had three crashes of mythtbackend in the last month.

$ grep -A 1 -B 3 -Hn Backtrace /var/log/mythtv/mythbackend.log*
/var/log/mythtv/mythbackend.log-34128-2009-07-30 15:00:01.013 Finished recording Guiding Light: channel 1021
/var/log/mythtv/mythbackend.log-34129-2009-07-30 15:00:01.013 Finished recording Hawaii Five-0 "One Born Every Minute": channel 1561
/var/log/mythtv/mythbackend.log-34130-*** glibc detected *** /usr/bin/mythbackend: malloc(): memory corruption (fast): 0x000000000286212f ***
/var/log/mythtv/mythbackend.log:34131:======= Backtrace: =========
/var/log/mythtv/mythbackend.log-34132-/lib/libc.so.6[0x7f0438d28cb8]
--
/var/log/mythtv/mythbackend.log.1-19705-2009-07-13 06:01:03.386 AFD: codec AC3 has 2 channels
/var/log/mythtv/mythbackend.log.1-19706-2009-07-13 06:01:03.392 AFD: Opened codec 0xecd6f0, id(AC3) type(Audio)
/var/log/mythtv/mythbackend.log.1-19707-*** glibc detected *** /usr/bin/mythbackend: malloc(): memory corruption (fast): 0x00007f8b209c177f ***
/var/log/mythtv/mythbackend.log.1:19708:======= Backtrace: =========
/var/log/mythtv/mythbackend.log.1-19709-/lib/libc.so.6[0x7f8b31376cb8]
--
/var/log/mythtv/mythbackend.log.3-7270-2009-07-04 00:03:35.829 Reschedule requested for id 0.
/var/log/mythtv/mythbackend.log.3-7271-2009-07-04 00:03:35.841 Scheduled 1 items in 0.0 = 0.00 match + 0.01 place
/var/log/mythtv/mythbackend.log.3-7272-*** glibc detected *** /usr/bin/mythbackend: malloc(): memory corruption (fast): 0x00007fc72c2754af ***
/var/log/mythtv/mythbackend.log.3:7273:======= Backtrace: =========
/var/log/mythtv/mythbackend.log.3-7274-/lib/libc.so.6[0x7fc74b321cb8]

Some system info:

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=9.04
DISTRIB_CODENAME=jaunty
DISTRIB_DESCRIPTION="Ubuntu 9.04"

$ apt-cache policy mythtv-backend
mythtv-backend:
  Installed: 0.21.0+fixes19961-0ubuntu8
  Candidate: 0.21.0+fixes19961-0ubuntu8
  Version table:
 *** 0.21.0+fixes19961-0ubuntu8 0
        500 http://us.archive.ubuntu.com jaunty/multiverse Packages
        100 /var/lib/dpkg/status

$ dpkg -l|grep myth
ii gtk2-engines-mythbuntu 0.4-0ubuntu2 Mythbuntu GTK+ 2.x Theme
ii libmyth-0.21-0 0.21.0+fixes19961-0ubuntu8 Common library code for MythTV and add-on mo
ii libmyth-perl 0.21.0+fixes19961-0ubuntu8 A PERL library to access some MythTV feature
ii libmyth-python 0.21.0+fixes19961-0ubuntu8 A python library to access some MythTV featu
ii mytharchive 0.21.0+fixes19556-0ubuntu8 create and burn DVD's from MythTV - binary f
ii mytharchive-data 0.21.0+fixes19556-0ubuntu8 create and burn DVD's from MythTV - data fil
ii mythbuntu-apple-trailers 0.2-0ubuntu1 Plugin providing Apple.com Movie Trailers fo
ii mythbuntu-artwork-usplash 0.8-0ubuntu2 mythbuntu artwork for usplash
ii mythbuntu-common 0.26-0ubuntu1 Mythbuntu application support functions
ii mythbuntu-control-centre 0.37-0ubuntu1 Mythbuntu Configuration Application
ii mythbuntu-default-settings 0.78-0ubuntu1 default settings for Mythbuntu
ii mythbuntu-desktop 0.38 The Mythbuntu standalone system
ii mythbuntu-gdm-theme 0.3-0ubuntu2 mythbuntu gdm greeter theme
ii mythbuntu-lirc-generator 0.21-0ubuntu1 Mythbuntu Lirc Configuration Generator
ii mythbuntu-log-grabber 0.3-0ubuntu1 Tool to gather diagnostic data for Mythbuntu
ii mythcontrols 0.21.0+fixes19556-0ubuntu8 External controls for MythTV
ii mythgallery 0.21.0+fixes19556-0ubuntu8 Image gallery/slideshow add-on module for My
ii mythmusic 0.21.0+fixes19556-0ubuntu8 Music add-on module for MythTV
ii mythtv 0.21.0+fixes19961-0ubuntu8 A personal video recorder application (clien
ii mythtv-backend 0.21.0+fixes19961-0ubuntu8 A personal video recorder application (serve
ii mythtv-backend-master 0.21.0+fixes19961-0ubuntu8 Metapackage to setup and configure a "Master
ii mythtv-common 0.21.0+fixes19961-0ubuntu8 A personal video recorder application (commo
ii mythtv-database 0.21.0+fixes19961-0ubuntu8 A personal video recorder application (datab
ii mythtv-frontend 0.21.0+fixes19961-0ubuntu8 A personal video recorder application (clien
ii mythtv-theme-blootube 1:0.21.0-0ubuntu1 The Blootube MythTV theme
ii mythtv-theme-blootube-osd 1:0.21.0-0ubuntu2 The Blootube MythTV OSD
ii mythtv-theme-blootube-wide 1:0.21.0-0ubuntu1 The Blootube MythTV theme (widescreen)
ii mythtv-theme-blootubelite-wide 1:0.21.0-0ubuntu1 The Blootube Lite MythTV theme (widescreen)
ii mythtv-theme-glass-wide 0.20080908-0ubuntu2 The Glass MythTV theme (widescreen)
ii mythtv-theme-gray-osd 0.21.0-0ubuntu2 The Gray-OSD MythTV Theme
ii mythtv-theme-isthmus 0.21.0-0ubuntu2 The Isthmus MythTV Theme
ii mythtv-theme-iulius 0.21.0-0ubuntu2 The Iulius MythTV Theme
ii mythtv-theme-iulius-osd 0.21.0-0ubuntu2 The Iulius-OSD MythTV Theme
ii mythtv-theme-metallurgy-osd 1.0-0ubuntu1 The Metallurgy MythTV OSD theme
ii mythtv-theme-metallurgy-wide 1.0-0ubuntu1 The Metallurgy MythTV theme (widescreen)
ii mythtv-theme-minimalist-wide 0.21.0-0ubuntu2 The Minimalist Wide MythTV Theme
ii mythtv-theme-mythbuntu 0.20080421 default MythTV theme used in Mythbuntu
ii mythtv-theme-mythcenter 0.21.0-0ubuntu2 The MythCenter MythTV Theme
ii mythtv-theme-mythcenter-wide 0.21.0-0ubuntu2 The MythCenter Wide MythTV Theme
ii mythtv-theme-neon-wide 1:0.21.0-0ubuntu4 The Neon MythTV theme (widescreen)
ii mythtv-theme-projectgrayhem 1:0.21.0-0ubuntu1 The Project Grayhem MythTV theme
ii mythtv-theme-projectgrayhem-osd 1:0.21.0-0ubuntu2 The Project Grayhem MythTV OSD
ii mythtv-theme-projectgrayhem-wide 1:0.21.0-0ubuntu2 The Project Grayhem MythTV theme (widescreen
ii mythtv-theme-retro 0.21.0-0ubuntu2 The Retro MythTV Theme
ii mythtv-theme-retro-osd 0.21.0-0ubuntu2 The Retro-OSD MythTV Theme
ii mythtv-theme-titivillus 0.21.0-0ubuntu2 The Titivillus MythTV Theme
ii mythtv-theme-titivillus-osd 0.21.0-0ubuntu2 The Titivillus-OSD MythTV Theme
ii mythtv-themes 0.21.0-0ubuntu2 Additional themes metapackage for MythTV
ii mythtv-transcode-utils 0.21.0+fixes19961-0ubuntu8 Utilities used for transcoding MythTV tasks
ii mythvideo 0.21.0+fixes19556-0ubuntu8 A generic video player frontend module for M
ii mythweather 0.21.0+fixes19556-0ubuntu8 Weather add-on module for MythTV
ii mythweb 0.21.0+fixes19556-0ubuntu8 Web interface add-on module for MythTV