[mythtv-users] mythbackend crashed trying to make a preview image

Sat Mar 25 04:10:56 UTC 2006

I tried to access mythweb tonight to check my schedule but mythbackend
was dead.  Everytime I try to access mythweb "Recorded Program", there
is tons of these "AFD Error" starting appearing and mythweb isn't
responsive anymore.  They only thing I can do for now is move the
recording.  The problem is that the file it's trying to open is 0
bytes in length.

1- It crashed after the recording trying to make the preview
2- Can't access the Recorded Program anymore
3- Deleted the file, same issue problem (not crashing, but never
getting out the AFD errors)
3- Have to restart the service

This is not the first time that I have bad recording with 0 length
file, but the first that crashes on.

Any ideas?

2006-03-23 21:00:04.200 TVRec(2): Changing from None to RecordingOnly
2006-03-23 21:00:04.208 DVB#1 Using DVB card 1, with frontend
'Broadcom BCM3510 VSB/QAM frontend'.
0: start_time: 994.063 duration: 8073.999
1: start_time: 994.025 duration: 8073.998
stream: start_time: 11044.720 duration: 89711.534 bitrate=314 kb/s
2006-03-23 21:00:04.298 AFD: Opened codec 0x8c69770, id(MPEG2VIDEO) type(Video)
2006-03-23 21:00:04.301 AFD: Opened codec 0x8c56250, id(AC3) type(Audio)
2006-03-23 21:00:04.498 Started recording: Exploring Space: The Quest
for Life: channel 1301 on cardid 2, sourceid 1
2006-03-23 21:00:04.514 scheduler: Last message repeated 1 times
2006-03-23 21:00:04.522 scheduler: Started recording
2006-03-23 21:00:04.841 DVB#1 DVB SI Table Parser Started
2006-03-23 21:00:05.281 DVB#0 DVB SI Table Parser Started
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.300 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.316 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.332 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.353 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.368 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.384 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.501 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.527 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.544 Reschedule requested for id 0.
2006-03-23 21:00:05.546 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]2006-03-23 21:00:05.874 Scheduled 60 items in
0.3 = 0.00 match + 0.33 place
2006-03-23 21:00:05.895 scheduler: Scheduled items
get_buffer() failed (stride changed)
2006-03-23 21:00:05.900 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.929 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.948 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.965 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.980 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:05.996 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.013 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.029 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.044 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.061 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.076 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.092 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.133 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.148 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.172 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.188 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.345 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.364 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.384 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.404 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.422 AFD Error: Unknown decoding error
[mpeg2video @ 0x72fa04]get_buffer() failed (stride changed)
2006-03-23 21:00:06.445 AFD Error: Unknown decoding error
*** glibc detected *** /usr/bin/mythbackend: corrupted double-linked
list: 0x08ca9788 ***

[root at SM_MythTV store]# ls 1301* -l
-rw-r--r--  1 root root 0 Mar 23 21:00 1301_20060323210000.mpg

I restarted the server and accessed the recorded program.  I'm not
sure why the bitrate would be 314kb/sec if the file is 0 bytes.

2006-03-24 22:53:49.542 adding: SM_MythTV as a client (events: 0)
2006-03-24 22:53:50.087 Preview Error: Previewer file
'/mnt/store/1301_20060323210000.mpg' is not valid.
2006-03-24 22:53:50.089 MainServer: Failed to make preview image.
2006-03-24 22:53:50.100 MainServer::HandleAnnounce FileTransfer
2006-03-24 22:53:50.104 adding: SM_MythTV as a remote file transfer
2006-03-24 22:53:50.109 Could not open
/mnt/store//1301_20060323210000.mpg.png.  12 retries remaining.
2006-03-24 22:53:50.616 Could not open
/mnt/store//1301_20060323210000.mpg.png.  11 retries remaining.
2006-03-24 22:53:51.124 Could not open
/mnt/store//1301_20060323210000.mpg.png.  10 retries remaining.
2006-03-24 22:53:51.632 Could not open
/mnt/store//1301_20060323210000.mpg.png.  9 retries remaining.
2006-03-24 22:53:52.140 Could not open
/mnt/store//1301_20060323210000.mpg.png.  8 retries remaining.
2006-03-24 22:53:52.648 Could not open
/mnt/store//1301_20060323210000.mpg.png.  7 retries remaining.
2006-03-24 22:53:53.155 Could not ls open
/mnt/store//1301_20060323210000.mpg.png.  6 retries remaining.
2006-03-24 22:53:53.663 Could not open
/mnt/store//1301_20060323210000.mpg.png.  5 retries remaining.
2006-03-24 22:53:54.171 Could not open
/mnt/store//1301_20060323210000.mpg.png.  4 retries remaining.
2006-03-24 22:53:54.679 Could not open
/mnt/store//1301_20060323210000.mpg.png.  3 retries remaining.
2006-03-24 22:53:55.187 Could not open
/mnt/store//1301_20060323210000.mpg.png.  2 retries remaining.
2006-03-24 22:53:55.695 Could not open
/mnt/store//1301_20060323210000.mpg.png.  1 retries remaining.
2006-03-24 22:53:56.203 Could not open
/mnt/store//1301_20060323210000.mpg.png.  0 retries remaining.
0: start_time: 994.063 duration: 8073.999
1: start_time: 994.025 duration: 8073.998
stream: start_time: 11044.720 duration: 89711.534 bitrate=314 kb/s
2006-03-24 22:53:57.042 AFD: Opened codec 0x8471670, id(MPEG2VIDEO) type(Video)
2006-03-24 22:53:57.046 AFD: Opened codec 0x847d560, id(AC3) type(Audio)
[mpeg2video @ 0x57ada04]get_buffer() failed (stride changed)
2006-03-24 22:53:58.032 AFD Error: Unknown decoding error
[mpeg2video @ 0x57ada04]get_buffer() failed (stride changed)
2006-03-24 22:53:58.048 AFD Error: Unknown decoding error
[mpeg2video @ 0x57ada04]get_buffer() failed (stride changed)
2006-03-24 22:53:58.064 AFD Error: Unknown decoding error

Steve M.