From: "h.shirosaki (Hiroshi Shirosaki)" <h.shirosaki@...>
Date: 2012-11-08T18:27:03+09:00
Subject: [ruby-core:49091] [ruby-trunk - Bug #7304] Random test failures around test_autoclose_true_closed_by_finalizer


Issue #7304 has been updated by h.shirosaki (Hiroshi Shirosaki).


=begin

I cannot reproduce above error. However, Bug #4168 and #5350 seem not solved.
I got NoMethodError by the following script. WeakRef object has reference to different object from originally associated.


 % cat test_weakref.rb
 require "weakref"

 class Foo
   def foo; end
 end

 a = []
 1000.times do
   a << WeakRef.new(Foo.new)
 end

 a.each do |x|
   begin
     x.foo
   rescue WeakRef::RefError
     p :referr
   end
 end

 % ruby -v test_weakref.rb
 ruby 2.0.0dev (2012-11-08 trunk 37558) [i686-linux]
 test_weakref.rb:14:in `block in <main>': undefined method `foo' for [70032780]:WeakRef (NoMethodError)
        from test_weakref.rb:12:in `each'
        from test_weakref.rb:12:in `<main>'
=end
----------------------------------------
Bug #7304: Random test failures around test_autoclose_true_closed_by_finalizer
https://bugs.ruby-lang.org/issues/7304#change-32626

Author: luislavena (Luis Lavena)
Status: Assigned
Priority: Normal
Assignee: ko1 (Koichi Sasada)
Category: test
Target version: 2.0.0
ruby -v: ruby 2.0.0dev (2012-11-07 trunk 37538) [i386-mingw32]


=begin
Hello,

Over the past few days I've seen on and off failures on RubyInstaller CI related to (({test_autoclose_true_closed_by_finalizer})):

http://ci.rubyinstaller.org/job/ruby-trunk-x86-test-all/265/console

 1) Error:
 test_autoclose_true_closed_by_finalizer(TestIO):
 NoMethodError: undefined method `close' for 2012-11-07 04:43:41 -0300:WeakRef
 C:/Users/Worker/Jenkins/workspace/ruby-trunk-x86-build/test/ruby/test_io.rb:1611:in `test_autoclose_true_closed_by_finalizer'

This seems to happen when the system is under heavy load (because is running other jobs in parallel).

This might be a hint of something not working properly under heavy load, perhaps the GC in effect.

I was unable to produce the same failure on x64-mingw32, and haven't tried yet OSX or Linux.

Any ideas?
=end



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