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[MarcRandolph <mrand@xxxxxxxxx>]

Howdy, and thank you for helping to improve Mythbuntu by opening this
ticket. Could you please update to the latest version of the debug
packages by following the "basic backtrace" directions outlined here:

http://www.mythtv.org/wiki/Debugging#Debugging_with_Ubuntu_packages

The above process should result in a new ticket being opened if you can
reproduce the issue, so I'm going to close this ticket.

** Changed in: mythbuntu
   Importance: Undecided => High

** Changed in: mythbuntu
       Status: New => Invalid

-- 
segmented recordings: mythbackend segfault error 6 in 6 in libc-2.11.1.so
https://bugs.launchpad.net/bugs/620284
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Status in Mythbuntu, Ubuntu derivative focused upon MythTV: Invalid

Bug description:
My mythbackend keeps crashing. Both dmesg and messages show, (from messages):

Aug 18 22:55:07 thecore kernel: [   68.596026] mythbackend[2016]: segfault at 7f227b5ffff8 ip 00007f22903f8ee2 sp 00007f227b5fffb0 error 6 in libc-2.11.1.so[7f229037e000+17a000]
Aug 18 22:56:05 thecore kernel: [  126.288626] mythbackend[2185]: segfault at 7fa4975ffff8 ip 00007fa4ac9c1ee2 sp 00007fa4975fffb0 error 6 in libc-2.11.1.so[7fa4ac947000+17a000]
Aug 18 22:57:02 thecore kernel: [  183.658048] mythbackend[2341]: segfault at 7fc28abfeff8 ip 00007fc2a014fee2 sp 00007fc28abfefb0 error 6 in libc-2.11.1.so[7fc2a00d5000+17a000]
Aug 18 22:58:00 thecore kernel: [  241.280724] mythbackend[2384]: segfault at 7f1b46bfeff8 ip 00007f1b5ba06ee2 sp 00007f1b46bfefb0 error 6 in libc-2.11.1.so[7f1b5b98c000+17a000]
Aug 18 22:58:57 thecore kernel: [  298.504030] mythbackend[2442]: segfault at 7f00075ffff8 ip 00007f001c70aee2 sp 00007f00075fffb0 error 6 in libc-2.11.1.so[7f001c690000+17a000]
Aug 18 22:59:55 thecore kernel: [  356.649957] mythbackend[2487]: segfault at 7f276f9f9ff8 ip 00007f2784b65ee2 sp 00007f276f9f9fb0 error 6 in libc-2.11.1.so[7f2784aeb000+17a000]
Aug 18 23:00:52 thecore kernel: [  413.350519] mythbackend[2551]: segfault at 7f40e17fcff8 ip 00007f40f6dbaee2 sp 00007f40e17fcfb0 error 6 in libc-2.11.1.so[7f40f6d40000+17a000]
Aug 18 23:01:48 thecore kernel: [  470.136083] mythbackend[2590]: segfault at 7f17eb5ffff8 ip 00007f1804c2eee2 sp 00007f17eb5fffb0 error 6 in libc-2.11.1.so[7f1804bb4000+17a000]
Aug 18 23:02:44 thecore kernel: [  526.148912] mythbackend[2629]: segfault at 7f6fa61fdff8 ip 00007f6fbb73fee2 sp 00007f6fa61fdfb0 error 6 in libc-2.11.1.so[7f6fbb6c5000+17a000]
Aug 18 23:03:41 thecore kernel: [  582.497601] mythbackend[2668]: segfault at 7f7a135ffff8 ip 00007f7a287dbee2 sp 00007f7a135fffb0 error 6 in libc-2.11.1.so[7f7a28761000+17a000]
Aug 18 23:04:36 thecore kernel: [  637.488819] mythbackend[2708]: segfault at 7fa9756deff8 ip 00007fa9862f5ee2 sp 00007fa9756defb0 error 6 in libc-2.11.1.so[7fa98627b000+17a000]
Aug 18 23:05:32 thecore kernel: [  693.968511] mythbackend[2752]: segfault at 7f0910dfbff8 ip 00007f092620cee2 sp 00007f0910dfbfb0 error 6 in libc-2.11.1.so[7f0926192000+17a000]

This causes my recordings to only last for a minute or two before they end. They start recording again; I assume when mythbackend is automatically restarted. So, I end up with a TV show that is chopped into multiple pieces.

This all worked fine for me before I went on a vacation. About 7 days into my vacation, I noticed that I could not ssh into the machine. When I got home an inspected the system it was frozen and was rebooted. I noticed that there were a lot of these small recordings showing up and mythcommflag processes were start ing for them all. These mythcommflag processes were bogging the system down.

I have since done an apt-get dist-upgrade, but it did not seem to help. I can prevent the system from grinding to a hault by killing the mythcommflag processes, but the shortened recordings problem persists.

I also attempted to disable/remove both of my input connections in mythtv-setup and I refilled the database. Then I re-added the input connections and refilled the database. Regardless, mythbackend is repeated segfaulting.

I also did a 'aptitude reinstall libc6' to no avail.

root@thecore:~# mythbackend -V
Invalid argument: -V
mythbackend version: branches/release-0-23-fixes [24158] www.mythtv.org