What version of FlightGear are you running with? You really don't
want to comment out the deadbeef checks in plib. That a patch they
certainly would not accept ... it indicates the program is trying to
use memory it previously freed.
Curt.
Geoff Reidy writes:
> Hi again,
>
> This could be time consuming :)
> I bypassed the asserts in plib to try and see what's really happening
> and whether it's fatal or not. I think it was removing the
> "deadBeefCheck" that made a difference. cvsdiff is included below.
> Before when flying from Sydney to Katmandu the program always aborted
> just off the north coast of Australia. I can hit "a" a few times to get
> there quicker and it will still abort at the same place, which saves
> some time anyway...
> Just now with the changes I got all the way to Katmandu and then down
> the length of India before it seg faulted. Backtrace from gdb included
> below.
>
> I have more time than expertise in these matters so any hints would be
> appreciated :)
>
> Regards,
> Geoff
>
> Index: src/ssg/ssg.h
> ===================================================================
> RCS file: /cvsroot/plib/plib/src/ssg/ssg.h,v
> retrieving revision 1.157
> diff -r1.157 ssg.h
> 302c302,309
> < void deRef () { assert ( refc > 0 ) ; refc-- ; }
> ---
> > // void deRef () { assert ( refc > 0 ) ; refc-- ; }
> > void deRef () {
> > if ( refc > 0 ) refc-- ;
> > else {
> > printf("refc was %d\n", refc);
> > refc = 0;
> > }
> > }
> Index: src/ssg/ssgBase.cxx
> ===================================================================
> RCS file: /cvsroot/plib/plib/src/ssg/ssgBase.cxx,v
> retrieving revision 1.21
> diff -r1.21 ssgBase.cxx
> 77c77
> < deadBeefCheck () ;
> ---
> > // deadBeefCheck () ;
>
>
>
>
>
> $GPRMC,014714,A,1014.239,N,08035.811,E,628.6,-166.9,2311102,0.000,E*66
> $GPGGA,014714,1014.239,N,08035.811,E,1,,,13051,F,,,,*21
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x4046e42d in malloc () from /lib/i686/libc.so.6
> (gdb) bt
> #0 0x4046e42d in malloc () from /lib/i686/libc.so.6
> #1 0x4046e262 in malloc () from /lib/i686/libc.so.6
> #2 0x4012771e in operator new(unsigned) () from /usr/X11R6/lib/libGLU.so.1
> #3 0x403a1900 in std::__default_alloc_template<true,
> 0>::allocate(unsigned) ()
> from /usr/lib/libstdc++.so.5
> #4 0x081eda30 in FGNavList::query(double, double, double, double,
> FGNav*) (this=0x9144388,
> lon=1.4066544783701858, lat=0.17856467335732401,
> elev=3978.113809261698, freq=379,
> n=0xbffff1b0) at /usr/include/c++/3.2/bits/stl_vector.h:123
> #5 0x080b6d73 in FGKR_87::search() (this=0x98ae504) at kr_87.cxx:487
> #6 0x080b2026 in FGRadioStack::search() (this=0x98ae448) at
> radiostack.cxx:129
> #7 0x080b21bb in fgMethodCallback<FGRadioStack*, void
> (FGRadioStack::*)()>::operator()() (
> this=0xc26e7a6) at ../../src/Include/fg_callback.hxx:117
> #8 0x0824319f in FGEventMgr::FGEvent::run() (this=0x8fe6228) at
> FGEventMgr.cxx:86
> #9 0x08243530 in FGEventMgr::update(double) (this=0x83bce58,
> dt=0.0066740000000000002)
> at /usr/include/c++/3.2/bits/stl_iterator.h:596
> #10 0x0805170a in fgRenderFrame() () at main.cxx:440
> #11 0x08053388 in fgMainLoop () at main.cxx:1263
> #12 0x40084df2 in glutMainLoop () from /usr/X11R6/lib/libglut.so.3
> #13 0x4008406d in glutMainLoop () from /usr/X11R6/lib/libglut.so.3
> #14 0x08054708 in fgMainInit (argc=1, argv=0xbffff774) at main.cxx:1729
> #15 0x08054cff in main (argc=1, argv=0xbffff774) at main.cxx:1821
> #16 0x40419082 in __libc_start_main () from /lib/i686/libc.so.6
> (gdb)
>
>
> _______________________________________________
> Flightgear-devel mailing list
> [EMAIL PROTECTED]
> http://mail.flightgear.org/mailman/listinfo/flightgear-devel
--
Curtis Olson IVLab / HumanFIRST Program FlightGear Project
Twin Cities [EMAIL PROTECTED] [EMAIL PROTECTED]
Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org
_______________________________________________
Flightgear-devel mailing list
[EMAIL PROTECTED]
http://mail.flightgear.org/mailman/listinfo/flightgear-devel
