From: Vanja Bucic <redmine@...>
Date: 2009-07-22T12:25:59+09:00
Subject: [ruby-core:24491] [Bug #1525] Deadlock in Ruby 1.9's VM caused by ConditionVariable.wait and fork?

Issue #1525 has been updated by Vanja Bucic.


To add my test case:
# ------------------------
require 'thread'

$stderr.puts RUBY_VERSION

$pid = 0
$t1 = Thread.new do
  $pid = fork {
    sleep(1)
    $stderr.puts "thread 1 exiting"
    exit
  }
end

$stdout.puts "ok, thread with fork spawned"
$stdout.puts "la la la la"

Process.waitpid($pid)

$stderr.puts "never done"

# ------ outputs ----------
1.9.2
ok, thread with fork spawned
la la la la

----------------------------------------
http://redmine.ruby-lang.org/issues/show/1525

----------------------------------------
http://redmine.ruby-lang.org