Alex Romosan writes:

 > the default runway i guess. fgfs doesn't even run (it crashes during
 > initialization). i suspect some problem with the radio frequencies for
 > CYYZ. the scenery is the standard one downloaded from flightgear.org
 > and everything else is the latest from CVS.

Yes, I'm getting a crash with the default C172 as well.  It ends with
the following:

  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.term
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.low
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.high
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.term
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.low
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.high
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.term
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.low
  Initializing Interpolator for /usr/local/FlightGear/Navaids/range.high
  Segmentation fault

gdb gives this backtrace:

  #0  SGPropertyNode::getDoubleValue() const (this=0x0) at props.cxx:1117
  #1  0x080a2bbb in FGNavCom::update(double) ()
  #2  0x080a2454 in FGNavCom::init() ()
  #3  0x080b05f5 in FGRadioStack::init() ()
  #4  0x080604cd in fgInitSubsystems () at fg_init.cxx:1169
  #5  0x0805635e in fgIdleFunction () at main.cxx:1311
  #6  0x40078e8e in __glutRegisterEventParser () from /usr/lib/libglut.so.3
  #7  0x4007953b in glutMainLoop () from /usr/lib/libglut.so.3
  #8  0x080545db in mainLoop (argc=2, argv=0x986fba8) at main.cxx:1713
  #9  0x080546d6 in main (argc=2, argv=0xbffff954) at main.cxx:1805

In other words, FGNavCom is running getDoubleValue() on a null
object.


All the best,


David

-- 
David Megginson, [EMAIL PROTECTED], http://www.megginson.com/

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