From: Wybo Dekker <wybo@...>
Date: 2006-04-10T18:06:08+09:00
Subject: Re: segfault with tk.rb

On Thu, 6 Apr 2006, Hidetoshi NAGAI wrote:

> From: Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
> Subject: Re: segfault with tk.rb
> Date: Sat, 1 Apr 2006 09:59:27 +0900
> Message-ID: <20060401.095916.41648212.nagai@ai.kyutech.ac.jp>
>> Thank you for your report.
>> I think that depends on the finalize operation of a Tk interpreter
>> when Ruby is exiting.
>> But now, I have no time to fix the problem.
>
> I'd try to fix the problem. The diff of ruby_1_8 branch is
> <http://www.ruby-lang.org/cgi-bin/cvsweb.cgi/ruby/ext/tk/tcltklib.c.diff?r1=1.40.2.5;r2=1.40.2.6;only_with_tag=ruby_1_8>.
> Could you try it?

Sorry for being so late with my reaction. Had other troubles and 
also had to find out how to get 1.8.4 from cvs.

It does not seem to work. What I did was:

cvs -z4 -d :pserver:anonymous@cvs.ruby-lang.org:/src checkout -r ruby_1_8 ruby
patch -p0 <patch
# -> patching file ruby/ext/tk/tcltklib.c
#    Reversed (or previously applied) patch detected!  Assume -R? [n] y
#    Hunk #5 succeeded at 4375 (offset 5 lines).
#    Hunk #6 succeeded at 4385 (offset 5 lines).
#    Hunk #7 succeeded at 4404 (offset 5 lines).
#    Hunk #8 succeeded at 4414 (offset 5 lines).
#    Hunk #9 succeeded at 4472 (offset 5 lines).
#    Hunk #10 succeeded at 4915 (offset 5 lines).
#    Hunk #11 succeeded at 6197 (offset 5 lines).
#    Hunk #12 succeeded at 6376 (offset 5 lines).
#    Hunk #13 succeeded at 7934 (offset 5 lines).
cd ruby
autoconf
./configure
make
./ruby ../warntest
./ruby -w ../warntest

where warntest contained:

require 'tk'
class TkVariable
   def to_m
     "%.2f" % [self.to_i.abs/100.0]
   end
end
puts TkVariable.new(12345).to_m

The first run on warntest worked fine. 
But the ruby -w ../warntest gave the old problem: very heavy system load
ending in a segmentation fault.

-- 
Wybo