[mythtv] mythbackend SEGV with symbol info

[Bjorn Hijmans]

> > a subject). Sorry about that. I created a new backtrace with symbol
info.
> > It crashed about 1 hour after starting LiveTV. I'm using a PVR250.
>
> Backtrace is relatively useless, as things started going bad long before
it
> segfaulted.  Would need to figure out why the read() in safe_read() is
> returning EINVAL to fix it.

I could print some variables to stdout in the 'if(ret<0)' block. Does that
help? What variables are relevant?

Bjorn