From: "Mauricio Fernández" <batsman.geo@...>
Date: 2003-03-03T03:33:11+09:00
Subject: Re: [BUG] gc_sweep(): unknown data type 48

On Sun, Mar 02, 2003 at 12:55:48AM +0900, Yukihiro Matsumoto wrote:
> Hi,
> 
> In message "Re: [BUG] gc_sweep(): unknown data type 48"
>     on 03/03/01, Mauricio Fern�ndez <batsman.geo@yahoo.com> writes:
> 
> |I will try to get a core from a binary with debug information.
> |
> |Here's some info from gdb (sorry, have no debug info yet, will work on
> |it):
> 
> Thank you.  It seems a bug that Nobu already fixed recently.  Try the
> latest stable-snapshot (or ruby_1_6 branch in the CVS), and see how it
> goes.
> 
> Wed Feb 26 00:02:41 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
> 
> 	* string.c (rb_str_dup): set FL_EXIVAR when copied generic ivar.
> 	  (ruby-bugs-ja:PR#400)
> 

I finally found a way to reproduce the bug with some predictability
(it only happens when Ruby is compiled with gcc 3.2; could it be that the
compiler is broken?).

If it is a bug, it is a new one.

Converting /tmp/tst1.html
./dict.rb:316: [BUG] gc_sweep(): unknown data type 28
ruby 1.6.8 (2003-02-28) [i386-linux]

This time I got a core dump with all the info:
#0  0x40094c01 in kill () from /lib/libc.so.6
#1  0x40094a12 in raise () from /lib/libc.so.6
#2  0x40095c3e in abort () from /lib/libc.so.6
#3  0x080ad77a in rb_bug (fmt=0x80b1300 "gc_sweep(): unknown data type
%d") at error.c:180
#4  0x08066fbf in obj_free (obj=1075318916) at gc.c:949
#5  0x08066d61 in gc_sweep () at gc.c:767
#6  0x080671d2 in rb_gc () at gc.c:1076
#7  0x08065fad in ruby_xmalloc (size=1024) at gc.c:94
#8  0x08088d69 in ruby_re_compile_pattern (pattern=0x84d4168 "^250",
size=4, bufp=0x84d4178) at regex.c:2416
#9  0x08085f6a in make_regexp (s=0x84d4168 "^250", len=4, flag=0) at
re.c:400
#10 0x08086b74 in rb_reg_initialize (obj=1075579232, s=0x84d4168 "^250",
len=4, options=0) at re.c:866
#11 0x08086c94 in rb_reg_new (s=0x84d4168 "^250", len=4, options=0) at
re.c:886
.....

What more info can I give you?

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