Hi,

At Sun, 2 May 2010 21:25:10 +0900,
Sam Ruby wrote in [ruby-core:29934]:
> Reproduction instructions:
> 
> Execute "irb" from the command line with no parameters.

Seems running with scripts according to your backtrace.
I can't reproduce it on i686-linux and x86_64-linux without
parameters.

-- 
Nobu Nakada