Line 92 of globals.cxx seems ok. subsystem_mgr was allocated with a 
new operator in line 45. Could you put a breakpoint at line 92 to see
if on your system, the destructor is not called twice ?

-Fred

Jonathan Polley wrote:

> Since there is a new release coming, I decided to bring the Mac version 
> back up to date (I've been busy otherwise).  When I exit FlightGear, I 
> get the following errors (and crash).
> 
> 
> *** malloc[8626]: Deallocation of a pointer not malloced: 0x18bef000; 
> This could be a double free(), or free() called with the middle of an 
> allocated block; Try setting environment variable MallocHelp to see 
> tools to help debug
> *** malloc[8626]: Deallocation of a pointer not malloced: 0x18d8d000; 
> This could be a double free(), or free() called with the middle of an 
> allocated block; Try setting environment variable MallocHelp to see 
> tools to help debug
> *** malloc[8626]: Deallocation of a pointer not malloced: 0x141794c0; 
> This could be a double free(), or free() called with the middle of an 
> allocated block; Try setting environment variable MallocHelp to see 
> tools to help debug
> 
> Using gdb gives me the following stack dump.  Any ideas?
> 
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> 0x0002bec8 in FGGlobals::~FGGlobals() (this=0x6b3e830, __in_chrg=3) at 
> globals.cxx:92
> 92          delete subsystem_mgr;
> (gdb) backtrace
> #0  0x0002bec8 in FGGlobals::~FGGlobals() (this=0x6b3e830, __in_chrg=3) 
> at globals.cxx:92
> #1  0x0000f178 in fgExitCleanup() () at main.cxx:1497
> #2  0x9002c7b8 in exit ()
> #3  0x00011224 in fgOSExit(int) (code=112624448) at fg_os.cxx:148
> #4  0x9002c7b8 in exit ()
> #5  0x0003d284 in fgExit(int) (status=0) at util.cxx:110
> #6  0x00026c20 in do_exit(SGPropertyNode const*) (arg=0x55d070) at 
> fg_commands.cxx:193
> #7  0x00235178 in FGBinding::fire() const (this=0x2) at input.cxx:122
> #8  0x00220de4 in action_callback(puObject*) (object=0x6b68340) at 
> /usr/include/gcc/darwin/3.3/c++/bits/stl_vector.h:511
> #9  0x00382d7c in puOneShot::doHit(int, int, int, int) (this=0x0, 
> button=0, updown=1000, x=2013490264, y=0) at puOneShot.cxx:32
> #10 0x0037d370 in puObject::checkHit(int, int, int, int) 
> (this=0x19969a10, button=0, updown=1, x=429300720, y=2) at 
> puObject.cxx:508
> #11 0x0037a46c in puGroup::checkHit(int, int, int, int) 
> (this=0x199697f0, button=0, updown=1, x=102, y=23) at puGroup.cxx:218
> #12 0x0037a46c in puGroup::checkHit(int, int, int, int) 
> (this=0x199683c0, button=0, updown=1, x=102, y=23) at puGroup.cxx:218
> #13 0x0035c8a8 in puMouse(int, int, int, int) (button=0, updown=1, 
> x=364, y=316) at pu.cxx:365
> #14 0x00235ed4 in FGInput::doMouseClick(int, int, int, int) 
> (this=0x18b85000, b=0, updown=1, x=364, y=316) at input.cxx:282
> #15 0x875270e8 in -[GLUTView _commonMouseUp:] ()
> #16 0x92e02cfc in -[NSWindow sendEvent:] ()
> #17 0x87542600 in -[GLUTWindow sendEvent:] ()
> #18 0x92df5324 in -[NSApplication sendEvent:] ()
> #19 0x87521cc4 in -[GLUTApplication 
> _runMainLoopUntilDate:autoreleasePool:] ()
> #20 0x87521df4 in -[GLUTApplication run] ()
> #21 0x8753bd28 in glutMainLoop ()
> #22 0x00010b54 in fgMainInit(int, char**) (argc=1, argv=0x4ff198) at 
> main.cxx:1779
> #23 0x0000a8fc in main (argc=1, argv=0x8756216c) at bootstrap.cxx:175
> 
> 
> Thanks,
> 
> Jonathan Polley
> 
> 
> _______________________________________________
> Flightgear-devel mailing list
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