[mythtv] Backend segfaulting repeatedly during recording DVB

[Isaac Richards]

On Tuesday 22 February 2005 07:55 pm, Ed Wildgoose wrote:
> Hi folks, I have been trying to debug this for a few days now, but I'm
> just not getting anywhere.  From a perfectly fine cvs from around mid
> Jan, I now get segfaults extremely frequently and usually when the
> backend is recording something.  The segfaults are really wierd though
> and I suspect some subtle memory overflow somewhere which is trampling a
> variable.  I have run the backend through valgrind, but nothing is
> showing up particularly (although I don't really know how to use
> valgrind that well)...  I have rebuilt QT and glibc a few times to check
> there isn't something fishy going on there (although it was working fine
> before, so nothing suspected).
>
> [Versions: QT: 3.3.3 Glibc:
>
> The consistent places where it segfaults are two locations.  It's always
> these two locations, and the relevant lines involve definitely allocated
> strings, yet the bt suggests NULL values being passed...
>
> Abreviated backtraces shown below, full backtraces available (didn't
> seem necessary to me):
>
> Any ideas *please*...?

Valgrind's my only suggestion.

Isaac