See if this makes sense?? 

(gdb) frame 1
#1 0x000000000088fb79 in
hashForAirport (c=0x19e62860, apt=0x6a128d0) at
/home/scotth/Download/Flightgear/git-repo/flightgear/src/Scripting/NasalPositioned.cxx:113
113
std::string name = apt->name();
(gdb) print apt
$1 = (const FGAirport
*) 0x6a128d0
(gdb) print c
$2 = (Context *) 0x19e62860
(gdb) print
apt->name
$3 = {const std::string &(const FGAirport * const)} 0x6609c0

(gdb) print apt->name()
Program received signal SIGSEGV, Segmentation
fault.0x0000006609c00000 in ?? ()
The program being debugged was
signaled while in a function called from GDB.
GDB remains in the frame
where the signal was received.
To change this behavior use "set
unwindonsignal on".
Evaluation of the expression containing the
function(at 0x0x6609c00000) will be abandoned.
When the function is done
executing, GDB will silently stop.
(gdb)  

S. 

On Tue, 24 Apr 2012
14:45:17 +0100, James Turner wrote: 

> On 24 Apr 2012, at 14:39, Curtis
Olson wrote:
> 
>> For what it's worth, I'm seeing nearly the same thing
... similar back trace-- crashing in hashforairport() about 10-15
seconds after the splash screen has been removed and the sim presented
for use.
> Okay, that's good news since it rules out something Thorsten
specific. Can you see if the FGAirport* being passed to hashForAirport
looks like a valid pointer? James
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