Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7725c10 in SDL_FillRect () from /usr/lib/libSDL-1.2.so.0
(gdb) bt
#0  0x00007ffff7725c10 in SDL_FillRect () from /usr/lib/libSDL-1.2.so.0
#1  0x000000000044b14e in sdl_surface_erase (L=0x786510) at ../src/core_lua.c:639
#2  0x0000000000473f2d in luaD_precall (L=0x786510, func=0x40d0440, nresults=0) at ../src/lua/ldo.c:319
#3  0x000000000047782b in luaV_execute (L=0x786510, nexeccalls=14) at ../src/lua/lvm.c:587
#4  0x00000000004741d8 in luaD_call (L=0x786510, func=0x40cfea0, nResults=0) at ../src/lua/ldo.c:377
#5  0x000000000046fe0c in f_call (L=0x786510, ud=0x7fffffffd9b0) at ../src/lua/lapi.c:800
#6  0x0000000000473180 in luaD_rawrunprotected (L=0x786510, f=0x46fdd7 <f_call>, ud=0x7fffffffd9b0) at ../src/lua/ldo.c:116
#7  0x00000000004745dc in luaD_pcall (L=0x786510, func=0x46fdd7 <f_call>, u=0x7fffffffd9b0, old_top=32, ef=16) at ../src/lua/ldo.c:463
#8  0x000000000046feb5 in lua_pcall (L=0x786510, nargs=8, nresults=0, errfunc=1) at ../src/lua/lapi.c:821
#9  0x000000000043a9af in docall (L=0x786510, narg=8, nret=0) at ../src/main.c:183
#10 0x000000000043ad54 in on_event (event=0x7fffffffdaa0) at ../src/main.c:276
#11 0x000000000043c9d6 in main (argc=1, argv=0x7fffffffdbc8) at ../src/main.c:959