[mythtvnz] Mythbackend crashing on KnoppMyth R5C7

Wade Maxfield mythtvnz@lists.linuxnut.co.nz
Mon, 4 Sep 2006 20:26:15 +1200


>On 9/4/06, Steve Hodge <stevehodge@gmail.com> wrote:
>>On 9/4/06, Toby Mills <toby@np.co.nz> wrote:
>>>  >Funny, my backend started crashing about once a day on Friday last.
>>>  Wow, mine started out of the blue last Thursday night. Its been running
>>>  perfectly for months now it seems to be crashing on the DVB card.
>>>  I thought it was a db problem as I fixed all the tables but it did it again
>>>  last night.
>>
>>I'm seeing the same thing - a backend crash tonight on a DVB
>>recording. If anyone finds a solution to this please let us all know.
>
>At least in my case what is happening is that mythbackend is using up
>all the memory and getting killed by the kernel. You guys might want
>to check your kernel logs to see if it's the same for you.
>
>Steve
>

That's strange.  I've only just rebuilt my backend from scratch using 
FC5 x84_64 and noticed the same thing last night with recording One 
Sport via DVB.  mythbackend used up 1.6GB of RAM, and another 2GB of 
swap by the time the recording finished (3 hrs).  It didn't quite get 
killed by the kernel, but I did get a couple of messages about IO 
corruption.  I thought it might have been something to do with the 
cpuspeed daemon (I hadn't turned it off at that stage).

I hadn't been paying this thread much attention since I don't use 
KnoppMyth, but it looks like it may be related to DVB in general not 
anything particular to KnoppMyth.  Just wild speculation but maybe 
it'ssomething to do with the DVB stream itself, since I haven't 
noticed anything like this in the last couple of months?

  - Wade