Re: [Flightgear-devel] Re: 0.9.8 Scenery path bug

[Curtis L. Olson]

Melchior FRANZ wrote:
* Curtis L. Olson -- Monday 17 January 2005 21:36:
 

As a result, FlightGear quit with a segmentaton fault. In conclusion, when 
--fg-scenery points to a non-existing directory, FlightGear seg faults. 
 

[...]
 

Could this be related to the terrain/object separation support in the 
newest version?
   

I wrote that part, and it doesn't look as if it were wrong (see globals.cxx:135).
The dirs and subdirs are only added to the list, if ulOpenDir() (see ul.cxx:64)
doesn't return NULL for them.
 

Durk,
Any chance you can get us a gdb backtrace?
Curt.
--
Curtis Olsonhttp://www.flightgear.org/~curt 
HumanFIRST Program  http://www.humanfirst.umn.edu/
FlightGear Project  http://www.flightgear.org
Unique text:2f585eeea02e2c79d7b1d8c4963bae2d

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Re: [Flightgear-devel] Re: 0.9.8 Scenery path bug

[Durk Talsma]

On Monday 17 January 2005 22:12, Melchior FRANZ wrote:
 * Curtis L. Olson -- Monday 17 January 2005 21:59:
  Any chance you can get us a gdb backtrace?

 I can reproduce the crash, though. I'll look into it ...

 m.

Thanks Melchior. Anyways, here's my backtrace: Just out of curiosity: Would it 
be the case that the loader fails because it doesn't have a path to read data 
from? This is a bit of a wild guess, because I didn't have time to look into 
the code at all. 

Cheers,
Durk


Starting program: /home/durk/src/FlightGear-0.9/source-clean/src/Main/fgfs
[New Thread 16384 (LWP 1634)]
Failed to find runway 28R at airport EHAM
[New Thread 32769 (LWP 1635)]
[New Thread 16386 (LWP 1636)]
Object PanelInstruments not found
Object ControlsGroup not found
[New Thread 32771 (LWP 1637)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16386 (LWP 1636)]
sgGenTile(std::string const, SGBucket, Point3D*, double*, SGMaterialLib*, 
ssgBranch*) ([EMAIL PROTECTED], b=
  {cx = 2.1290598554044618e-313, cy = 54.183372497527387, lon = 4, lat = 
52, x = 3, y = 2}, center=0x4b71bbfc, bounding_radius=0x0, matlib=0x967ce20,
geometry=0xd8eaf30) at basic_string.h:249
249   { return  _M_dataplus._M_p; }
(gdb)

(gdb) bt
#0  sgGenTile(std::string const, SGBucket, Point3D*, double*, SGMaterialLib*, 
ssgBranch*) ([EMAIL PROTECTED], b=
  {cx = 2.1290598554044618e-313, cy = 54.183372497527387, lon = 4, lat = 
52, x = 3, y = 2}, center=0x4b71bbfc, bounding_radius=0x0, matlib=0x967ce20,
geometry=0xd8cecb0) at basic_string.h:249
#1  0x08305168 in FGTileEntry::load(std::vectorstd::string, 
std::allocatorstd::string  const, bool) (this=0xda3db68, 
[EMAIL PROTECTED])
at globals.hxx:269
#2  0x082f9dd3 in FGTileLoader::LoaderThread::run() (this=0x8f0d198)
at FGTileLoader.cxx:172
#3  0x0840888f in start_handler (arg=0x0) at SGThread.cxx:23
#4  0x40039f60 in pthread_start_thread () from /lib/i686/libpthread.so.0
#5  0x4003a0fe in pthread_start_thread_event () from /lib/i686/libpthread.so.0
#6  0x4059d327 in clone () from /lib/i686/libc.so.6
(gdb)



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