Hello,

In message "[ruby-core:33513] Re: [Ruby 1.9-Bug#4108][Closed] irb hangs on Windows with trunk"
    on Dec.02,2010 15:19:29, <phasis / gmail.com> wrote:
> After applying r30017 and r30018, irb is not working well with
> multibyte strings.

I expect that this is fixed at r30019.

BTW, I hear that irb still be in stuck when using readline.
Tarui-san is debugging the problem.

And, the original problem (#4097) is not completely resolved
yet.
The possibility of the buffer overflow and the data disappearance
still remains.
Sorry for the inconvinience.
Please teach us when you find another problem like this.

Regards,
-- 
U.Nakamura <usa / garbagecollect.jp>