(gdb) supertux
Undefined command: "supertux". Try "help".
(gdb) run
Starting program: /usr/games/supertux
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Failed to read a valid object file image from memory.
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[Thread debugging using libthread_db enabled]
[New Thread -1216399680 (LWP 7742)]
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[/home/david/.supertux2] is in the search path
[/usr/share/games/supertux] is in the search path
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[New Thread -1216525424 (LWP 7745)]
Invalid button '0' in buttonmap
Invalid button '1' in buttonmap
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[New Thread -1225286768 (LWP 7749)]
supertux: xcb_xlib.c:50: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
---Type <return> to continue, or q <return> to quit---bt full
Program received signal SIGABRT, Aborted.
[Switching to Thread -1216399680 (LWP 7742)]
0xffffe410 in ?? ()