brandon@ubuntu:~$ gdb fgfs GNU gdb 6.3-debian Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i486-linux-gnu"...(no debugging symbols found) Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (gdb) Quit (gdb) run Starting program: /usr/bin/fgfs (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread -1218070848 (LWP 21953)] (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) ---Type to continue, or q to quit--- (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) opening file: /usr/share/FlightGear/data/Navaids/carrier_nav.dat /usr/share/FlightGear/data/Navaids/TACAN_freq.dat [New Thread -1518515280 (LWP 21961)] [New Thread -1589687376 (LWP 21962)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1218070848 (LWP 21953)] 0x00000000 in ?? () (gdb) run The program being debugged has been started already. Start it from the beginning? (y or n) y Starting program: /usr/bin/fgfs (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread -1218095424 (LWP 21987)] (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) ---Type to continue, or q to quit--- (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) opening file: /usr/share/FlightGear/data/Navaids/carrier_nav.dat /usr/share/FlightGear/data/Navaids/TACAN_freq.dat [New Thread -1518539856 (LWP 21992)] [New Thread -1589711952 (LWP 21993)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1218095424 (LWP 21987)] 0x00000000 in ?? () (gdb) bt #0 0x00000000 in ?? () (gdb) strace Undefined command: "strace". Try "help". (gdb)