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[bubba <620284@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

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

** Affects: mythbuntu
     Importance: Undecided
         Status: New

-- 
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: New

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