From: "Mauricio Fernández" <batsman.geo@...>
Date: 2003-03-01T22:32:50+09:00
Subject: Re: [BUG] gc_sweep(): unknown data type 48

On Sat, Mar 01, 2003 at 07:26:58PM +0900, nobu.nokada@softhome.net wrote:
> Hi,
> 
> At Sat, 1 Mar 2003 19:12:40 +0900,
> Mauricio Fern�ndez wrote:
> > Just wanted to know if the above error indicates for sure (1) a bug in Ruby
> > or (2) if I could be causing it by having something wrong in my code (say,
> > wrt. to threading and synchronization issues).
> 
> I guess it should be (1), a bug around GC.
> 
> > If it is (1) I could try to isolate the error, but it won't be easy for
> > the fore mentioned reasons. The source code as it stands now wouldn't be
> > very helpful as it isn't really small enough (~ 900 locs).
> 
> Do you have core at the crash?

Finally got one. It's 8MB, but I'm using the following script to try to
make Ruby dump a smaller core:

loop do
        `cp /tmp/SPIEGEL\ ONLINE.html /tmp/tst1.html`
        `ruby wwwhints.rb /tmp/tst1.html`
        if $? != 0
                # have a core, yuppie
                `mv core co/core.#{Time.new.to_i}`
        end
end

[please tell me if this can affect in any undesirable way the generated
 core]

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):

(gdb) where
#0  0x4012fc01 in kill () from /lib/libc.so.6
#1  0x4012fa12 in raise () from /lib/libc.so.6
#2  0x40130c3e in abort () from /lib/libc.so.6
#3  0x4003389d in rb_bug () from /usr/lib/libruby.so.1.6
#4  0x400810b7 in ruby_posix_signal () from /usr/lib/libruby.so.1.6
#5  0x4012fb88 in sigaction () from /lib/libc.so.6
#6  0x4008f9ba in rb_free_generic_ivar () from /usr/lib/libruby.so.1.6
#7  0x4004e02d in rb_gc_force_recycle () from /usr/lib/libruby.so.1.6
#8  0x4004dc05 in rb_gc_mark () from /usr/lib/libruby.so.1.6
#9  0x4004e1dc in rb_gc () from /usr/lib/libruby.so.1.6
#10 0x4004cc65 in ruby_xmalloc () from /usr/lib/libruby.so.1.6
#11 0x40073a11 in ruby_re_compile_pattern () from
/usr/lib/libruby.so.1.6
#12 0x40070761 in rb_reg_mbclen2 () from /usr/lib/libruby.so.1.6
#13 0x400714d5 in rb_reg_match_last () from /usr/lib/libruby.so.1.6
#14 0x4007160c in rb_reg_new () from /usr/lib/libruby.so.1.6
#15 0x4003ac2b in rb_alias () from /usr/lib/libruby.so.1.6
#16 0x4003aa2b in rb_alias () from /usr/lib/libruby.so.1.6
#17 0x400389ab in rb_alias () from /usr/lib/libruby.so.1.6
#18 0x4003865a in rb_alias () from /usr/lib/libruby.so.1.6
#19 0x40038edb in rb_alias () from /usr/lib/libruby.so.1.6
#20 0x4003ec4e in rb_stack_check () from /usr/lib/libruby.so.1.6
#21 0x4003f13c in rb_stack_check () from /usr/lib/libruby.so.1.6
#22 0x4003a012 in rb_alias () from /usr/lib/libruby.so.1.6
#23 0x400399b8 in rb_alias () from /usr/lib/libruby.so.1.6
#24 0x400397b5 in rb_alias () from /usr/lib/libruby.so.1.6
#25 0x4003865a in rb_alias () from /usr/lib/libruby.so.1.6
#26 0x4003cccd in rb_iterator_p () from /usr/lib/libruby.so.1.6
#27 0x40047a13 in rb_thread_scope_shared_p () from
/usr/lib/libruby.so.1.6
#28 0x400478f1 in rb_thread_stop_timer () from /usr/lib/libruby.so.1.6
#29 0x40047ac0 in rb_thread_scope_shared_p () from
/usr/lib/libruby.so.1.6
#30 0x4003e58d in rb_stack_check () from /usr/lib/libruby.so.1.6
#31 0x4003e929 in rb_stack_check () from /usr/lib/libruby.so.1.6
#32 0x4003f13c in rb_stack_check () from /usr/lib/libruby.so.1.6
#33 0x4003f48d in rb_funcall2 () from /usr/lib/libruby.so.1.6
#34 0x400417e1 in rb_obj_call_init () from /usr/lib/libruby.so.1.6
#35 0x40047a4c in rb_thread_scope_shared_p () from
/usr/lib/libruby.so.1.6
#36 0x4003e58d in rb_stack_check () from /usr/lib/libruby.so.1.6
---Type <return> to continue, or q <return> to quit---
#37 0x4003e929 in rb_stack_check () from /usr/lib/libruby.so.1.6
#38 0x4003f13c in rb_stack_check () from /usr/lib/libruby.so.1.6
#39 0x4003a012 in rb_alias () from /usr/lib/libruby.so.1.6
#40 0x400393cd in rb_alias () from /usr/lib/libruby.so.1.6



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