brandon@ubuntu:~$ gdb fgfs
GNU gdb 6.3-debian
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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
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[Thread debugging using libthread_db enabled]
[New Thread -1218070848 (LWP 21953)]
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---Type <return> to continue, or q <return> to quit---
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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
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[Thread debugging using libthread_db enabled]
[New Thread -1218095424 (LWP 21987)]
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---Type <return> to continue, or q <return> to quit---
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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)