[mythtv-users] No connection to the backend (~every two weeks) -- Need help
Allen Edwards
allen.p.edwards at gmail.com
Tue Aug 18 15:43:38 UTC 2009
I need help please. My wife is being very understanding but I am not
sure how long that will last.
I have googled and searched the archives for the past 4 months. I
looked on the Ubuntu forum.
I have rewritten my last post providing new information and removing
spurious stuff.
I went through my logs looking for no connection to the backend
looking for a pattern. The only pattern I see is that this started in
March. It looks like I did an upgrade mid February so perhaps the
upgrade caused this.
There is also upgrade log information from June. I attached dpkg.log
files to this email.
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.6
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.7
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.6
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.5
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.4
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.3
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.2
2009-03-02 09:25:23.302 Event socket closed. No connection to the backend.
2009-03-14 19:00:03.139 Event socket closed. No connection to the backend.
2009-05-08 03:10:02.580 Event socket closed. No connection to the backend.
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log.1
2009-06-13 07:35:18.058 Event socket closed. No connection to the backend.
2009-06-13 11:16:37.476 Event socket closed. No connection to the backend.
2009-06-13 11:50:52.904 Event socket closed. No connection to the backend.
2009-06-13 15:56:17.528 Event socket closed. No connection to the backend.
dad at myth_desktop:~$ grep " No connection to the backend"
/var/log/mythtv/mythfrontend.log
2009-07-16 10:20:02.695 Event socket closed. No connection to the backend.
2009-08-09 21:28:59.723 Event socket closed. No connection to the backend.
2009-08-17 05:30:18.856 Event socket closed. No connection to the backend.
I looked at dmesg and before power cycling this time and here is the
end of the log and yes there clearly is a segfault:
[ 47.193608] vboxdrv: Found 2 processor cores.
[ 47.193869] vboxdrv: fAsync=1 offMin=0xd59c9 offMax=0xd59c9
[ 47.193984] vboxdrv: TSC mode is 'asynchronous', kernel timer mode
is 'normal'.
[ 47.193986] vboxdrv: Successfully loaded version 2.1.2 (interface
0x000a0009).
[12902.850751] hda-intel: Invalid position buffer, using LPIB read
method instead.
[18730.187837] mythfilldatabas[8151]: segfault at bc7ed65c eip
08175568 esp b467808c error 6
[82090.572976] mythbackend[5966]: segfault at 22fd880c eip b5ad7e10
esp aedf7b7c error 4
The mythfilldatabase segfault happened 2 days before so that is not
the problem. It segfaults almost every day however. The last
segfault happened at 05:30:18, this is right about when the frontend
lost connection. However, there is no segfault at any time on Aug 9,
the date of the previous crash according to kern.log files.
By the way, nothing was happening on the system at 5:30 on Aug 17.
Nothing was being recorded and nobody was using it.
I am running mythbuntu 8.04. Here is the version information for mythbackend
MythTV Version : 19878
MythTV Branch : branches/release-0-21-fixes
Library API : 0.21.20080304-1
Network Protocol : 40
Options compiled in:
linux profile 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
Here is the dpkg log entries from 2/16, the last entry before the
first loss of backend connection started:
2009-02-16 13:04:13 startup archives unpack
2009-02-16 13:04:18 install libqtcore4 <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:18 status half-installed libqtcore4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqtcore4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqtcore4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqt4-network <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqt4-network 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-network 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-network 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqt4-assistant <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqt4-assistant 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-assistant 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-assistant 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqt4-xml <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqt4-xml 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-xml 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-xml 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqt4-dbus <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqt4-dbus 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-dbus 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-dbus 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqt4-script <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqt4-script 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-script 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-script 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqt4-test <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqt4-test 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-test 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-test 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqt4-core <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqt4-core 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-core 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status unpacked libqt4-core 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 install libqtgui4 <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:19 status half-installed libqtgui4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqtgui4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqtgui4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 install libqt4-designer <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status half-installed libqt4-designer 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-designer 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-designer 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 install libqt4-opengl <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status half-installed libqt4-opengl 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-opengl 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-opengl 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 install libqt4-svg <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status half-installed libqt4-svg 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-svg 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-svg 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 install libqt4-gui <none> 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status half-installed libqt4-gui 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-gui 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:20 status unpacked libqt4-gui 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 startup packages configure
2009-02-16 13:04:21 configure libqtcore4 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqtcore4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqtcore4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqtcore4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status triggers-pending libc6 2.7-10ubuntu4
2009-02-16 13:04:21 configure libqt4-network 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-network 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-network 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-network 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-assistant 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-assistant 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-assistant
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-assistant 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-xml 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-xml 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-xml 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-xml 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-dbus 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-dbus 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-dbus 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-dbus 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-script 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-script 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-script 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-script 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-test 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-test 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-test 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-test 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-core 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-core 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-core 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-core 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqtgui4 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqtgui4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqtgui4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqtgui4 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-designer 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-designer 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-designer 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-designer 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-opengl 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-opengl 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-opengl 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-opengl 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-svg 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-svg 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-svg 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-svg 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 configure libqt4-gui 4.4.0-1ubuntu5~hardy1
4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status unpacked libqt4-gui 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status half-configured libqt4-gui 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 status installed libqt4-gui 4.4.0-1ubuntu5~hardy1
2009-02-16 13:04:21 trigproc libc6 2.7-10ubuntu4 2.7-10ubuntu4
2009-02-16 13:04:21 status half-configured libc6 2.7-10ubuntu4
2009-02-16 13:04:21 status installed libc6 2.7-10ubuntu4
2009-02-16 13:04:22 startup archives install
2009-02-16 13:04:22 install virtualbox-2.1 <none> 2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:22 status half-installed virtualbox-2.1
2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:33 status unpacked virtualbox-2.1 2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:33 status unpacked virtualbox-2.1 2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:33 configure virtualbox-2.1 2.1.2-41885_Ubuntu_hardy
2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:33 status unpacked virtualbox-2.1 2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:33 status unpacked virtualbox-2.1 2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:33 status half-configured virtualbox-2.1
2.1.2-41885_Ubuntu_hardy
2009-02-16 13:04:52 status installed virtualbox-2.1 2.1.2-41885_Ubuntu_hardy
Here is the only entry after the above one:
2009-06-16 21:27:33 startup archives unpack
2009-06-16 21:27:41 install libarchive-zip-perl <none> 1.18-1
2009-06-16 21:27:41 status half-installed libarchive-zip-perl 1.18-1
2009-06-16 21:27:42 status unpacked libarchive-zip-perl 1.18-1
2009-06-16 21:27:42 status unpacked libarchive-zip-perl 1.18-1
2009-06-16 21:27:42 install libhtml-tableextract-perl <none> 2.10-2
2009-06-16 21:27:42 status half-installed libhtml-tableextract-perl 2.10-2
2009-06-16 21:27:42 status unpacked libhtml-tableextract-perl 2.10-2
2009-06-16 21:27:42 status unpacked libhtml-tableextract-perl 2.10-2
2009-06-16 21:27:42 install libhttp-cache-transparent-perl <none> 1.0-1
2009-06-16 21:27:42 status half-installed libhttp-cache-transparent-perl 1.0-1
2009-06-16 21:27:42 status unpacked libhttp-cache-transparent-perl 1.0-1
2009-06-16 21:27:42 status unpacked libhttp-cache-transparent-perl 1.0-1
2009-06-16 21:27:42 install libwww-mechanize-perl <none> 1.34-1
2009-06-16 21:27:42 status half-installed libwww-mechanize-perl 1.34-1
2009-06-16 21:27:43 status unpacked libwww-mechanize-perl 1.34-1
2009-06-16 21:27:43 status unpacked libwww-mechanize-perl 1.34-1
2009-06-16 21:27:43 install libxml-writer-perl <none> 0.603-1
2009-06-16 21:27:43 status half-installed libxml-writer-perl 0.603-1
2009-06-16 21:27:43 status unpacked libxml-writer-perl 0.603-1
2009-06-16 21:27:43 status unpacked libxml-writer-perl 0.603-1
2009-06-16 21:27:43 install libfile-slurp-perl <none> 9999.12-2
2009-06-16 21:27:43 status half-installed libfile-slurp-perl 9999.12-2
2009-06-16 21:27:43 status unpacked libfile-slurp-perl 9999.12-2
2009-06-16 21:27:43 status unpacked libfile-slurp-perl 9999.12-2
2009-06-16 21:27:43 install libxmltv-perl <none> 0.5.51-2ubuntu2
2009-06-16 21:27:43 status half-installed libxmltv-perl 0.5.51-2ubuntu2
2009-06-16 21:27:43 status unpacked libxmltv-perl 0.5.51-2ubuntu2
2009-06-16 21:27:43 status unpacked libxmltv-perl 0.5.51-2ubuntu2
2009-06-16 21:27:44 install libtext-bidi-perl <none> 0.03-2
2009-06-16 21:27:44 status half-installed libtext-bidi-perl 0.03-2
2009-06-16 21:27:44 status unpacked libtext-bidi-perl 0.03-2
2009-06-16 21:27:44 status unpacked libtext-bidi-perl 0.03-2
2009-06-16 21:27:44 install xmltv-util <none> 0.5.51-2ubuntu2
2009-06-16 21:27:44 status half-installed xmltv-util 0.5.51-2ubuntu2
2009-06-16 21:27:44 status unpacked xmltv-util 0.5.51-2ubuntu2
2009-06-16 21:27:44 status unpacked xmltv-util 0.5.51-2ubuntu2
2009-06-16 21:27:45 startup packages configure
2009-06-16 21:27:45 configure libarchive-zip-perl 1.18-1 1.18-1
2009-06-16 21:27:45 status unpacked libarchive-zip-perl 1.18-1
2009-06-16 21:27:45 status half-configured libarchive-zip-perl 1.18-1
2009-06-16 21:27:45 status installed libarchive-zip-perl 1.18-1
2009-06-16 21:27:45 configure libhtml-tableextract-perl 2.10-2 2.10-2
2009-06-16 21:27:45 status unpacked libhtml-tableextract-perl 2.10-2
2009-06-16 21:27:45 status half-configured libhtml-tableextract-perl 2.10-2
2009-06-16 21:27:45 status installed libhtml-tableextract-perl 2.10-2
2009-06-16 21:27:45 configure libhttp-cache-transparent-perl 1.0-1 1.0-1
2009-06-16 21:27:45 status unpacked libhttp-cache-transparent-perl 1.0-1
2009-06-16 21:27:45 status half-configured libhttp-cache-transparent-perl 1.0-1
2009-06-16 21:27:45 status installed libhttp-cache-transparent-perl 1.0-1
2009-06-16 21:27:45 configure libwww-mechanize-perl 1.34-1 1.34-1
2009-06-16 21:27:45 status unpacked libwww-mechanize-perl 1.34-1
2009-06-16 21:27:45 status half-configured libwww-mechanize-perl 1.34-1
2009-06-16 21:27:45 status installed libwww-mechanize-perl 1.34-1
2009-06-16 21:27:45 configure libxml-writer-perl 0.603-1 0.603-1
2009-06-16 21:27:45 status unpacked libxml-writer-perl 0.603-1
2009-06-16 21:27:45 status half-configured libxml-writer-perl 0.603-1
2009-06-16 21:27:45 status installed libxml-writer-perl 0.603-1
2009-06-16 21:27:45 configure libfile-slurp-perl 9999.12-2 9999.12-2
2009-06-16 21:27:45 status unpacked libfile-slurp-perl 9999.12-2
2009-06-16 21:27:45 status half-configured libfile-slurp-perl 9999.12-2
2009-06-16 21:27:45 status installed libfile-slurp-perl 9999.12-2
2009-06-16 21:27:45 configure libxmltv-perl 0.5.51-2ubuntu2 0.5.51-2ubuntu2
2009-06-16 21:27:45 status unpacked libxmltv-perl 0.5.51-2ubuntu2
2009-06-16 21:27:45 status half-configured libxmltv-perl 0.5.51-2ubuntu2
2009-06-16 21:27:45 status installed libxmltv-perl 0.5.51-2ubuntu2
2009-06-16 21:27:45 configure libtext-bidi-perl 0.03-2 0.03-2
2009-06-16 21:27:45 status unpacked libtext-bidi-perl 0.03-2
2009-06-16 21:27:45 status half-configured libtext-bidi-perl 0.03-2
2009-06-16 21:27:45 status installed libtext-bidi-perl 0.03-2
2009-06-16 21:27:45 configure xmltv-util 0.5.51-2ubuntu2 0.5.51-2ubuntu2
2009-06-16 21:27:45 status unpacked xmltv-util 0.5.51-2ubuntu2
2009-06-16 21:27:45 status half-configured xmltv-util 0.5.51-2ubuntu2
2009-06-16 21:27:45 status installed xmltv-util 0.5.51-2ubuntu2
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