Re: [Flightgear-devel] FG crashes in orbit

[Tobias D. <tda...@gm...>]

Ah, it turns out that there is actually a bug in the code, namely a
missing NULL check after getting the current waypoint from the AI
aircraft, in the reachedEndOfCruise method. I presume that this method
doesn't normally get called on the player aircraft, except in this
unusual kind of situation; but when it does, it will crash, because
there is no AI flight plan, and thus getting the current waypoint will
yield a null pointer, and then the code calls a method on that without
checking first, at which point it dumps core.

I've added a check myself, now going to recompile and test.

On Tue, Apr 10, 2018 at 08:13:37PM +0200, James Turner wrote:
> 
> 
> > On 10 Apr 2018, at 19:00, Tobias Dammers <tda...@gm...> wrote:
> > 
> > I have disabled AI traffic, fwiw. The crash happened at an altitude
> > of approx.  400000 ft, and a ground speed of roughly 8.5 km/s.
> > 
> > Any ideas?
> 
> This is probably the default ‘user’ AIAircraft which models your
> aircraft in the AI system. It’s experiencing some odd flight-plan
> transition (and normally your aircraft would not have an AI
> flight-plan - since these are really only used by traffic)
> 
> Kind regards,
> James
> 

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-- 
Tobias Dammers - tda...@gm...