From: Yoshimasa Niwa <redmine@...>
Date: 2010-10-21T14:44:06+09:00
Subject: [ruby-dev:42439] [Ruby 1.9-Bug#3973][Open] Unexpected error and segmentation fault without close

Bug #3973: Unexpected error and segmentation fault without close
http://redmine.ruby-lang.org/issues/show/3973

起票者: Yoshimasa Niwa
ステータス: Open, 優先度: Normal
ruby -v: ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.4.0]

Run next small code on ruby 1.9.2p0 shows unexpected TypeError on line 3.

while true
  f = File.open("/dev/null", "w")
  f.write("a") # => in `<main>': wrong argument type #<Class:0x0000010086dbb0> (expected Data) (TypeError)
end

This code doesn't have "f.close" so it's buggy, but it may not raise TypeError.
Also, next code causes segmentation fault.

require 'net/http'
while true
  Net::HTTP.get(URI.parse("http://localhost/"))
  f = File.open("/dev/null", "w")
  f.write("a")
end

Ruby 1.9.2p0で、closeし忘れのopenがwhileの中にあると、予期しないTypeErrorが発生し、
また場合によってはSegmentation Faultが発生します。


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