[mythtv-users] Mythbackend won't start (segmentation fault)

[Gabe Rubin]

Hi List,

I am not even sure how to diagnose this.  I am running myth on a
fedora 14 box.  Last night I updated the system via yum, which mainly
just updated the kernel.  I did a reboot and mythfrontend would not
start (and I could not log into the box remotely).  I tried rolling
back the kernel, but had issues with my nvidia driver.  I was able to
start things up again and watch tv with the updated kernel after
tinkering around and resetting (running 2.6.35.14-97.fc14.i686).

This morning, I noticed the backend was down.  I tried restarting it
and get this error (I also get this error if I roll back to the prior
kernel that was working before (2.6.35.14-96.fc14.i686)):

[root at localhost ~]# service mythbackend restart
Stopping mythbackend:                                      [FAILED]
Starting mythbackend: /bin/bash: line 1:  2152 Segmentation fault
(core dumped) /usr/bin/mythbackend --daemon --logfile
/var/log/mythtv/mythbackend.log --pidfile /var/run/mythbackend.pid
                                                           [FAILED]


Here is the end of the log file:

2011-10-28 01:30:00.919 TVRec(2): Changing from RecordingOnly to None
2011-10-28 01:30:00.950 Finished recording The Daily Show With Jon
Stewart "Andrew Napolitano": channel 2204
2011-10-28 01:30:00.944 Updating status for "The Daily Show With Jon
Stewart":"Andrew Napolitano" on cardid 2 (Recording => Recorded)
2011-10-28 01:30:01.242 LFireDev(0025F1FFFE14D310), Error: raw1394_loop_iterate
                        eno: Bad file descriptor (9)
2011-10-28 01:30:03.664
RingBuf(/storage/recordings/2204_20111028010000.mpg): Waited 2.0
seconds for data
                        to become available... 23720 < 32768
2011-10-28 01:30:04.039 [ac3 @ 0x248ec00]incomplete frame
2011-10-28 01:30:04.197 [mpeg2video @ 0x248ec00]invalid cbp at 57 38
2011-10-28 01:30:04.529 [mpeg2video @ 0x248ec00]Warning MVs not available
2011-10-28 01:30:04.849 Event socket closed. No connection to the backend.
2011-10-28 01:30:05.100 MythSocket(ffffffffb7501dd8:-1):
writeStringList: Error, socket went unconnected.
                        We wrote 0 of 68 bytes with 1 errors
2011-10-28 01:30:05.515 MythSocket(ffffffffb7501dd8:-1):
readStringList: Error, called with unconnected socket.
2011-10-28 01:30:05.691 Connection to backend server lost
2011-10-28 01:30:05.723 MythCoreContext: Connecting to backend server:
127.0.0.1:6543 (try 1 of 1)
2011-10-28 01:30:05.750 Connection to master server timed out.
                        Either the server is down or the master server settings
                        in mythtv-settings does not contain the proper
IP address

2011-10-28 01:30:05.774 Reconnection to backend server failed
2011-10-28 01:30:06.086 ~MythContext waiting for threads to exit.
2011-10-28 01:30:06.136 MythCoreContext: Connecting to backend server:
127.0.0.1:6543 (try 1 of 1)
2011-10-28 01:30:06.158 Connection to master server timed out.
                        Either the server is down or the master server settings
                        in mythtv-settings does not contain the proper
IP address