gistfile1.txt

john@Strudel /tmp/other $ gdb ./parrot
GNU gdb 6.3.50-20050815 (Apple version gdb-1469) (Wed May  5 04:36:56 UTC 2010)
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This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared libraries .......... done

(gdb) r t/library/mime_base64.t
Starting program: /private/tmp/other/parrot t/library/mime_base64.t
Reading symbols for shared libraries .+++++++++....... done
1..550

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: 13 at address: 0x0000000000000000
string_rep_compatible (interp_unused=<value temporarily unavailable, due to optimizations>, a=0x101e75c40, b=0x1018bb880) at src/string/api.c:264
264	    if (STRING_max_bytes_per_codepoint(a) != 1 ||
(gdb) b
Breakpoint 1 at 0x10000cf0e: file src/string/api.c, line 264.
(gdb) bt 
#0  string_rep_compatible (interp_unused=<value temporarily unavailable, due to optimizations>, a=0x101e75c40, b=0x1018bb880) at src/string/api.c:264
#1  0x00000001000102bf in Parrot_str_concat (interp=0x101508e40, a=0x101e75c40, b=0x1018bb880) at src/string/api.c:425
#2  0x0000000100110414 in Parrot_scalar_i_concatenate_str (interp=0x101508e40, _self=0x101db8ee0, value=0x1018bb880) at scalar.pmc:661
#3  0x00000001000110e8 in Parrot_concat_p_s (cur_opcode=0x1014b7bd0, interp=0x101508e40) at src/ops/core_ops.c:22320
#4  0x000000010007f798 in runops_slow_core (interp=0x101508e40, runcore_unused=<value temporarily unavailable, due to optimizations>, pc=0x1014b7bd0) at src/runcore/cores.c:647
#5  0x000000010007ebad in runops_int (interp=0x101508e40, offset=<value temporarily unavailable, due to optimizations>) at src/runcore/main.c:224
#6  0x0000000100054fb0 in runops (interp=0x101508e40, offs=<value temporarily unavailable, due to optimizations>) at src/call/ops.c:127
#7  0x00000001000508e3 in Parrot_pcc_invoke_from_sig_object (interp=0x101508e40, sub_obj=0x1018a4a00, call_object=<value temporarily unavailable, due to optimizations>) at src/call/pcc.c:325
#8  0x0000000100042ad5 in Parrot_ext_call (interp=0x101508e40, sub_pmc=0x1018a4a00, signature=<value temporarily unavailable, due to optimizations>) at src/extend.c:322
#9  0x0000000100002064 in main (argc=1, argv=0x7fff5fbff588) at src/main.c:149