Program received signal SIGSEGV, Segmentation fault.
lookup_dynfun (obj=0x81c0340, func=0x8061c55 <region_do_set_focus>,
    funnotfound=0xbf976e04) at obj.c:151
151             if(descr->funtab==NULL)
(gdb) bt
#0  lookup_dynfun (obj=0x81c0340, func=0x8061c55 <region_do_set_focus>, 
    funnotfound=0xbf976e04) at obj.c:151
#1  0x08061c6e in region_do_set_focus (reg=0x81c0340, warp=0) at region.c:194
#2  0xb7c064a7 in tiling_do_set_focus (ws=0x81d47f0, warp=0) at tiling.c:174
#3  0x08061c74 in region_do_set_focus (reg=0x81d47f0, warp=0) at region.c:194
#4  0x08061c74 in region_do_set_focus (reg=0x8146d48, warp=0) at region.c:194
#5  0x0805b024 in ioncore_flushfocus () at event.c:188
#6  0x0805b0a3 in ioncore_mainloop () at event.c:235
#7  0x08059a54 in main (argc=1, argv=0xbf976fa4) at ion.c:267
(gdb)