(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
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 -1216203072 (LWP 8755)]
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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 -1216328816 (LWP 8756)]
Invalid button '0' in buttonmap
Invalid button '1' in buttonmap
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---Type <return> to continue, or q <return> to quit---
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[New Thread -1225090160 (LWP 8760)]
supertux: xcb_xlib.c:50: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
Program received signal SIGABRT, Aborted.
[Switching to Thread -1216203072 (LWP 8755)]
0xffffe410 in ?? ()
(gdb) bt full
#0 0xffffe410 in ?? ()
No symbol table info available.
#1 0xbfc038c8 in ?? ()
No symbol table info available.
#2 0x00000006 in ?? ()
No symbol table info available.
#3 0x00002233 in ?? ()
No symbol table info available.
#4 0xb7b59160 in raise () from /lib/i686/cmov/libc.so.6
No symbol table info available.
#5 0xb7b5aa71 in abort () from /lib/i686/cmov/libc.so.6
No symbol table info available.
#6 0xb7b5261e in __assert_fail () from /lib/i686/cmov/libc.so.6
No symbol table info available.
#7 0xb7846651 in xcb_xlib_unlock () from /usr/lib/libxcb-xlib.so.0
No symbol table info available.
#8 0xb78a6d41 in ?? () from /usr/lib/libX11.so.6
No symbol table info available.
#9 0x08203990 in ?? ()
No symbol table info available.
#10 0xb7c77120 in ?? () from /lib/i686/cmov/libc.so.6
No symbol table info available.
#11 0x0824b3c8 in ?? ()
No symbol table info available.
#12 0xb7e84e10 in ?? () from /usr/lib/libGL.so.1
No symbol table info available.
#13 0xb7e84e10 in ?? () from /usr/lib/libGL.so.1
No symbol table info available.
#14 0x00000000 in ?? ()
No symbol table info available.