From 57b8687debea4e532898cdf0380d63bb62749b9a Mon Sep 17 00:00:00 2001 From: nobu Date: Sat, 5 Oct 2013 02:21:12 +0000 Subject: thread.c: fix some mutexes remaining locked after forking * thread.c (terminate_atfork_i): fix locking mutexes not unlocked in forks when not tracked in thread. [ruby-core:55102] [Bug #8433] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43148 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/ruby/test_thread.rb | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'test/ruby') diff --git a/test/ruby/test_thread.rb b/test/ruby/test_thread.rb index bc3c025253..6d4237d7ff 100644 --- a/test/ruby/test_thread.rb +++ b/test/ruby/test_thread.rb @@ -909,4 +909,31 @@ Thread.new(Thread.current) {|mth| size_large = invoke_rec script, vm_stack_size, 1024 * 1024 * 10 assert_operator(size_default, :<=, size_large, "large size") end + + def test_blocking_mutex_unlocked_on_fork + bug8433 = '[ruby-core:55102] [Bug #8433]' + + mutex = Mutex.new + flag = false + mutex.lock + + th = Thread.new do + mutex.synchronize do + flag = true + sleep + end + end + + Thread.pass until th.stop? + mutex.unlock + + pid = Process.fork do + exit(mutex.locked?) + end + + th.kill + + pid, status = Process.waitpid2(pid) + assert_equal(false, status.success?, bug8433) + end end -- cgit v1.2.3