[ruby-dev:25103] ruby_xrealloc dumps core

Tietew です。

スレッドのコンテキストスイッチで core dump しました。

これも同じ IRCbot で、スレッドを大量（推定200以上）に走らせてソ
ケットで通信しているものです。

これで何か判りますか？

(gdb) bt
#0  0x401626b1 in kill () from /lib/libc.so.6
#1  0x40162435 in raise () from /lib/libc.so.6
#2  0x40163978 in abort () from /lib/libc.so.6
#3  0x4003f721 in rb_bug (fmt=0x0) at error.c:214
#4  0x400a4d92 in sigsegv (sig=11) at signal.c:446
#5  <signal handler called>
#6  0x401aacd5 in mallopt () from /lib/libc.so.6
#7  0x401ab626 in mallopt () from /lib/libc.so.6
#8  0x401aa150 in realloc () from /lib/libc.so.6
#9  0x400601ab in ruby_xrealloc (ptr=0xa295fd8, size=170609200) at gc.c:158
#10 0x40055bcb in rb_thread_save_context (th=0xa1d20f0) at eval.c:9825
#11 0x400566a1 in rb_thread_schedule () at eval.c:10387
#12 0x40056f0b in rb_thread_wait_fd (fd=-913927117) at eval.c:10415
#13 0x40068450 in io_fread (ptr=0x91f76f8 "\004\221&@\200", len=5,
    fptr=0x88cf380) at io.c:948
#14 0x400688b8 in io_read (argc=-913927117, argv=0xc9869433, io=1083693524)
    at io.c:1139

(snip snip snip)

#207 0x400442fc in ruby_exec_internal () at eval.c:1467
#208 0x40044354 in ruby_exec () at eval.c:1487
#209 0x40044391 in ruby_run () at eval.c:1497
#210 0x080486e3 in main (argc=-913927117, argv=0xc9869433, envp=0xbffffe68)
    at main.c:46
(gdb) frame 10
#10 0x40055bcb in rb_thread_save_context (th=0xa1d20f0) at eval.c:9825
9825            REALLOC_N(th->stk_ptr, VALUE, len);
(gdb) l
9820
9821        len = ruby_stack_length(&pos);
9822        th->stk_len = 0;
9823        th->stk_pos = pos;
9824        if (len > th->stk_max) {
9825            REALLOC_N(th->stk_ptr, VALUE, len);
9826            th->stk_max = len;
9827        }
9828        th->stk_len = len;
9829        FLUSH_REGISTER_WINDOWS;
(gdb) p len
$7 = 31395



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