itsme213 wrote: > The last instance_variable_set in the following makes irb 0.9 on Ruby 1.8.2 > (2004-11-06) crash on WinXP. >>irb --version > irb 0.9(02/07/03) >>irb > C:/ruby/lib/ruby/1.8/irb/input-method.rb:97: [BUG] Segmentation fault I can attest that something is fishy in irb under windows (XP, SP2 if that matters). D:\>irb --version irb 0.9(02/07/03) D:\>irb irb(main):001:0> c:/ruby/lib/ruby/1.8/irb/input-method.rb:97: [BUG] Segmentation fault ruby 1.8.2 (2004-11-06) [i386-mswin32] What I did? I pressed tab twice. My belief is that there is some bug in readline, though I am not entiredly certain. Another thing to note is that the error doesn't appear on all installations of ruby on windows.