[mythtv-users] Frequent backend crashing

James Cummings cummings.james at gmail.com
Tue Aug 21 13:24:51 UTC 2007


On 8/18/07, Jeff Bevis <digijock223 at yahoo.com> wrote:
>
> Ryan, here is the script info that I used...  (You don't need to put it
> in /etc/rc.d, that was an arbitrary choice of location.  )
>
<snip/>


The script to restart the backend is all well and good, but only solves part
of the problem from my point of view.  On my box the backend can be still
running and it decides not to lock onto a channel even though signal is
strong.  In liveTV it just vgives you the option to wait longer, etc. but
when it is meant to be recording it just doesn't record anything, creates a
0 byte file which then the frontend is not able to find.  Restarting the
backend in these cases solves the problem, it will lock on the channel right
away, but the cron script won't help, because the backend is technically
running.

My logs when this happens look something like:

=======
2007-08-17 20:21:38.440 EITScanner: Now looking for EIT data on multiplex of
channel 701
QDateTime::fromString: Parameter out of range
QSocketDevice::writeBlock: Invalid socket
QDateTime::fromString: Parameter out of range
QSocketDevice::writeBlock: Invalid socket
2007-08-17 20:26:50.015 EITScanner: Now looking for EIT data on multiplex of
channel 11
QDateTime::fromString: Parameter out of range
QSocketDevice::writeBlock: Invalid socket
2007-08-17 20:30:02.928 TVRec(1): Changing from None to RecordingOnly
2007-08-17 20:30:02.944 TVRec(1): HW Tuner: 1->1
2007-08-17 20:30:02.952 DVBChan(0) Error: Tune(): Setting Frontend tuning
parameters failed.
                        eno: No such device (19)
2007-08-17 20:30:02.953 DVBChan(0) Error: SetChannelByString(13): Tuning to
frequency.
2007-08-17 20:30:02.953 TVRec(1) Error: Failed to set channel to 13.
Reverting to kState_None
2007-08-17 20:30:02.954 TVRec(1): Changing from RecordingOnly to None
2007-08-17 20:30:02.966 Canceled recording (Recorder Failed): The Daily Show
with Jon Stewart: channel 1013 on cardid 1, sourceid 1
2007-08-17 20:30:02.983 scheduler: Canceled recording (Recorder Failed): The
Daily Show with Jon Stewart: channel 1013 on cardid 1, sourceid 1
2007-08-17 20:30:06.034 Error deleting
'/var/lib/mythtv/recordings/1013_20070817203000.mpg' could not open
                        eno: No such file or directory (2)
2007-08-17 20:30:06.043 Delete Error
'/var/lib/mythtv/recordings/1013_20070817203000.mpg'
                        eno: No such file or directory (2)
2007-08-17 20:30:10.066 Reschedule requested for id 0.
2007-08-17 20:30:10.497 Scheduled 115 items in 0.4 = 0.01 match + 0.42 place
2007-08-17 20:30:10.506 scheduler: Scheduled items: Scheduled 115 items in
0.4 = 0.01 match + 0.42 place
QDateTime::fromString: Parameter out of range
=======

Any suggestions appreciated!

-James


-- 
James Cummings, Cummings dot James at GMail dot com
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