Here's a simpler bt (from integer_42.pasm)
#0 0x8fe18b42 in __dyld_misaligned_stack_error () #1 0x00000004 in ?? () #2 0x005cbbe0 in real_exception (interp=0x112a00, ret_addr=0x0, exitcode=28, format=0x85143b "Divide by zero") at src/exceptions.c:903 #3 0x0104cc5f in ?? () #4 0x005dec4d in runops_jit (interp=0x112a00, pc=0x130550) at src/interpreter.c:692 #5 0x005df033 in runops_int (interp=0x112a00, offset=0) at src/interpreter.c:918 #6 0x005df9f7 in runops (interp=0x112a00, offs=0) at src/inter_run.c:106 #7 0x005dfc8a in runops_args (interp=0x112a00, sub=0x30ce50, obj=0x103ce70, meth_unused=0x0, sig=0x84d710 "vP", ap=0xbffff90c "4?0") at src/inter_run.c:232 #8 0x005dfdc9 in Parrot_runops_fromc_args (interp=0x112a00, sub=0x30ce50, sig=0x84d710 "vP") at src/inter_run.c:301 #9 0x005c870f in Parrot_runcode (interp=0x112a00, argc=1, argv=0xbffffa18) at src/embed.c:943 #10 0x00829299 in imcc_run_pbc (interp=0x112a00, obj_file=0, output_file=0x0, argc=1, argv=0xbffffa18) at compilers/imcc/main.c:782 #11 0x00829d6d in imcc_run (interp=0x112a00, sourcefile=0xbffffaa0 "/usr/share/cvs/afbach/parrot/t/op/integer_42.pasm", argc=1, argv=0xbffffa18) at compilers/imcc/main.c:1070 #12 0x0000210c in main (argc=1, argv=0xbffffa18) at src/main.c:61
