#0  0x40309001 in kill () from /lib/libc.so.6
#1  0x40233a22 in raise () from /lib/libpthread.so.0
#2  0x4030a401 in abort () from /lib/libc.so.6
#3  0x08274fe7 in debug_int3 () at osapi/osapi_unix.cpp:347
#4  0x08067485 in ai_stealth_sweep () at ai/aicode.cpp:7800
#5  0x08069765 in ai_chase () at ai/aicode.cpp:8869
#6  0x08071fbe in ai_execute_behavior (aip=0x839ee60) at ai/aicode.cpp:13238
#7  0x08073fff in ai_frame (objnum=7) at ai/aicode.cpp:14429
#8  0x08074203 in ai_process (obj=0x9c95d74, ai_index=7, frametime=0.0269927979)
    at ai/aicode.cpp:14508
#9  0x082245a9 in ship_process_post (obj=0x9c95d74, frametime=0.0269927979)
    at ship/ship.cpp:6698
#10 0x081e0f04 in obj_move_all_post (objp=0x9c95d74, frametime=0.0269927979)
    at object/object.cpp:1803
#11 0x081e152d in obj_move_all (frametime=0.0269927979) at object/object.cpp:2015
#12 0x0805460d in game_simulation_frame () at freespace2/freespace.cpp:5218
#13 0x08054d38 in game_frame (paused=0) at freespace2/freespace.cpp:5624
#14 0x080556dd in game_do_frame () at freespace2/freespace.cpp:6098
#15 0x080577b8 in game_do_state (state=2) at freespace2/freespace.cpp:8032
#16 0x080a7cf9 in gameseq_process_events () at gamesequence/gamesequence.cpp:657
#17 0x0805823a in WinMainSub (argc=4, argv=0xbffff7d4) at freespace2/freespace.cpp:8568
#18 0x0805826c in main (argc=4, argv=0xbffff7d4) at freespace2/freespace.cpp:8630
#19 0x402f8c6f in __libc_start_main () from /lib/libc.so.6