[mythtv-users] Backend crashes all the time

[tim at electronghost.co.uk]

> tim at electronghost.co.uk wrote:
>>> During the last week, I've had several
>>> crashes on my backend.
>>
>> I get these too, though I've added a bit of code to make them happen
>> earlier while looking for the cause. My investigations suggest some
>> kind
>> of memory scribble. I've posted a bit of information to Ticket #4820
>> (which may yet turn out to be the wrong ticket for it, but never mind
>> :-)
>>
>> I can provoke it quite quickly by channel hopping, as it tends to
>> happen
>> on a channel change in LiveTV, and specifically on a corrupted SIGNAL
>> message. Is that where you get it?
>
> Channel change yes, corrupt SIGNAL message, no, I'm not sure about that.

Further investigation indicates it can actually be *any* message; it's
just that I get a lot of SIGNAL messages when changing channels and that
raises the probability that it will be one of those.

> It also happens during/after recordings when there's no LiveTV watching.
>

Yes. I think it's not directly related to LiveTV watching, but channel
hopping in LiveTV is simply a quick way to provoke it.

I've opened Ticket #4854 for it, and am continuing to poke at it in the
hope of isolating it a bit further. Next thing I suppose is to turn on all
the messages to give me an idea of the code path and start reading the
code to see if I can find anything suspicious. I'm kind of hoping someone
familiar with the code base will have a eureka moment and save me the
effort, but if not I suppose it gives me worthwhile something to do in the
evenings :-)

-- 
Tim Smith <tim at electronghost.co.uk>