[mythtv] [0.25] SIGSEGV when EIT updating DB and channel change (sometimes empty file)

[Michael T. Dean]

On 04/02/2012 04:58 PM, Angela Schmid wrote:
> Hello
> I have a reproducible problem and tried several 0.25-pre versions since the beginning of march. On a channel change for a recording
> and a running (or maybe just ending) EIT update to the DB I get a SIGSEGV, almost every second day. Twice I saw empty files created
> prior the crash of mythbackend.
> Since I have these errors, I only activated one card, and allowing only one recording per card.
> This crash happened after midnight, so maybe a new day of EIT data was received resulting in the crash.
>
> http://minerva11.dyndns.org/html/public/gdb.txt.zip 9Kb
> http://minerva11.dyndns.org/html/public/mythbackend.log.zip 81Kb
>
> Thanks for having a look at the debug logs. Please inform me for other settings/tests.
> Cheers Angela

Angela,

Got a chance to look over the back trace and it's definitely a bug in 
our code--the EIT scanner is not being shut down properly and is trying 
to change channel on a null TVRec.  It may be related to 
http://code.mythtv.org/trac/ticket/10016 , but at this point it makes 
sense to just create a new ticket for it.  Please attach your log file 
and back trace to the ticket (or let me know if it refuses to let you 
due to the spam filter--which might not be working properly after the 
move to the new server--and I can upload them for you).

Thanks,
Mike