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