[ruby-dev:449] Re: How to report a bug

 > ruby のバージョンを替えてやってみるべきかもしれませんね…。

といいつつやってみました。ruby 1.0-970701 での結果です。
ちょうど debugging symbol が入ってました。
また挙動が違っていて、marshal 関係が見えてきています。

#0  0xef6cbba8 in _morecore ()
#1  0xef6cb454 in _malloc_unlocked ()
#2  0xef6cb1c4 in malloc ()
#3  0x2afac in xmalloc (size=4294967176) at gc.c:55
#4  0x4a2c4 in str_new (
    ptr=0xefffd178 "[JavaHouse-Brewers:12442] Re: JAVA=?ISO-2022-JP?B?GyRCJSIlVy
VqJCskaSVWJWklJiU2JHJOKSRBJCIkMiRrSn0bKEI=?=\n法",
    len=4294967175) at string.c:44
#5  0xef731ca8 in r_string (arg=0xefffd6d0) at marshal.c:560
#6  0xef732094 in r_object (arg=0xefffd6d0) at marshal.c:644
#7  0xef732364 in r_object (arg=0xefffd6d0) at marshal.c:734
#8  0xef732364 in r_object (arg=0xefffd6d0) at marshal.c:734
#9  0xef732118 in r_object (arg=0xefffd6d0) at marshal.c:660
#10 0xef732364 in r_object (arg=0xefffd6d0) at marshal.c:734
#11 0xef7323e8 in load (arg=0xefffd6d0) at marshal.c:759
#12 0x232f4 in rb_ensure (b_proc=0xef7323dc <load>, data1=0xefffd6d0,
    e_proc=0xef7323f0 <load_ensure>, data2=0xefffd6d0) at eval.c:2597
#13 0xef7324e8 in marshal_load (self=566200, port=1527584) at marshal.c:803
#14 0x23984 in rb_call (class=0x8a370, recv=566200, mid=7265, argc=1,
    argv=0xefffd8c0, scope=0) at eval.c:2798
#15 0x20544 in rb_eval (self=561064, node=0xa0420) at eval.c:1379
#16 0x203bc in rb_eval (self=561064, node=0xa03f0) at eval.c:1367
#17 0x1f938 in rb_eval (self=561064, node=0xa0168) at eval.c:1065
#18 0x24078 in rb_call (class=0x89e18, recv=561064, mid=7601, argc=1,
    argv=0xefffdf4c, scope=0) at eval.c:2967
#19 0x20544 in rb_eval (self=558952, node=0x8be70) at eval.c:1379
#20 0x20d48 in rb_eval (self=558952, node=0x8be58) at eval.c:1510
#21 0x1f938 in rb_eval (self=558952, node=0x8ba98) at eval.c:1065
#22 0x24078 in rb_call (class=0x88a68, recv=558952, mid=8601, argc=0,
    argv=0xefffe5d4, scope=1) at eval.c:2967
#23 0x2069c in rb_eval (self=558952, node=0x8aef8) at eval.c:1390
#24 0x1f938 in rb_eval (self=558952, node=0x8aeb0) at eval.c:1065
#25 0x1f938 in rb_eval (self=558952, node=0x8ad48) at eval.c:1065
#26 0x229a0 in rb_yield_0 (val=24867, self=558952) at eval.c:2334
#27 0x22aa0 in rb_yield (val=24867) at eval.c:2370
#28 0x339d0 in fix_upto (from=24867, to=25013) at numeric.c:989
#29 0x23984 in rb_call (class=0xa8ce8, recv=24867, mid=3729, argc=1,
    argv=0xefffeda8, scope=0) at eval.c:2798
#30 0x20544 in rb_eval (self=558952, node=0x8b5a0) at eval.c:1379
#31 0x1fe98 in rb_eval (self=558952, node=0x8ad18) at eval.c:1225
#32 0x1f938 in rb_eval (self=558952, node=0x8acd0) at eval.c:1065
#33 0x24078 in rb_call (class=0x88a68, recv=558952, mid=8609, argc=0,
    argv=0x0, scope=0) at eval.c:2967
#34 0x20544 in rb_eval (self=710056, node=0x8a4f0) at eval.c:1379
#35 0x1f938 in rb_eval (self=710056, node=0x8a4a8) at eval.c:1065
#36 0x1ec1c in eval_node (self=710056) at eval.c:668
#37 0x1ecbc in ruby_run () at eval.c:696
#38 0x166ac in main (argc=2, argv=0xeffff87c, envp=0xeffff888) at main.c:22