On Wed, 2002-01-23 at 07:52, Curtis L. Olson wrote: > James Gallagher writes: > > I get the following seg fault with the latest CVS version of FG (using > > the latest CVS SimGear): > > > > [jimg@dcz FlightGear]$ src/Main/fgfs > > FlightGear: Version 0.7.9 > > > > Scanning for root: command line > > Scanning for root: /home/jimg/.fgfsrc > > fg_root = /usr/local/src/X11/fgfsbase > > Segmentation fault (core dumped) > > Hmmm, this looks like you are dying in the property manager code some > how. Do you have the latest cvs version of the base package? Perhaps > a config file there got corrupted?
I double checked this. I have the latest fg base (from CVS). > > Another things worth trying is to rebuild simgear from scratch, "make clean; > make", then install it, then "make clean; make" in the FlightGear tree. Yup, I tried this too, with metakit 2.4.2 (both with and without Erik's suggestion of removing the #define bool int (which on gcc won't be defined, but just to be sure...). It still crashes. Stepping through the code in gdb/ddd I saw the following: In inline bool fgSetDouble (const string &name, double val) { return globals->get_props()->setDoubleValue(name, val); } The call to globals->get_props()->setDoubleValue(...) has stuff that makes sense. But inside setDoubleValue the formal param relative_path is null and that's where the seg fault comes from. bool SGPropertyNode::setDoubleValue (const string &relative_path, double value) { return getNode(relative_path, true)->setDoubleValue(value); } I'm sort of swamped right now, so I haven't taken this any further. Sorry. Maybe this will be enough of a clue for someone else on the list. Oh, I was building from CVS just fine until at least late last week, so whatever is causing this happened relatively recently. James > > Regards, > > Curt. > > > > > > > > I poked around with gdb/ddd. Here's the stack from the core file: > > > > #0 0x82e5204 in SGPropertyNode::getNode (this=0x0, > > relative_path=@0xbffff2e0, create=true) at props.cxx:1290 > > #1 0x82e5c24 in SGPropertyNode::setDoubleValue (this=0x0, > > relative_path=@0xbffff2e0, value=-110.6642444) > > at props.cxx:1472 > > #2 0x8089d64 in fgSetDefaults () at fg_props.hxx:328 > > #3 0x80689d5 in fgInitConfig (argc=1, argv=0xbffff724) at > > fg_init.cxx:219 > > #4 0x8059089 in mainLoop (argc=1, argv=0xbffff724) at main.cxx:1487 > > #5 0x805dd72 in main (argc=1, argv=0xbffff724) at main.cxx:1816 > > #6 0x4054b306 in __libc_start_main (main=0x805dd54 <main>, argc=1, > > ubp_av=0xbffff724, init=0x804d4a4 <_init>, > > fini=0x83a2a78 <_fini>, rtld_fini=0x4000d2dc <_dl_fini>, > > stack_end=0xbffff71c) > > at ../sysdeps/generic/libc-start.c:129 > > > > I tried various things, like not using my ~/.fgfsrc file, et c. but I > > still get the seg fault. > > > > Any one else see this? > > > > Thanks, > > James > > > > -- > > __________________________________________________________________________ > > James Gallagher The Distributed Oceanographic Data System > > [EMAIL PROTECTED] > > http://unidata.ucar.edu/packages/dods > > Voice: 775.337.8612 Fax: 775.337.2105 > > > > _______________________________________________ > > Flightgear-devel mailing list > > [EMAIL PROTECTED] > > http://mail.flightgear.org/mailman/listinfo/flightgear-devel > > -- > Curtis Olson Intelligent Vehicles Lab 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 -- __________________________________________________________________________ James Gallagher The Distributed Oceanographic Data System [EMAIL PROTECTED] http://unidata.ucar.edu/packages/dods Voice: 775.337.8612 Fax: 775.337.2105 _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel