From: Roger Pack <rogerdpack@...>
Date: 2009-12-15T02:05:51+09:00
Subject: [ruby-core:27167] Re: [Bug #2394] [BUG] pthread_mutex_lock: 22 	revisited

> r26061 fixes a bug related this.
> Does this still happen?

I had hoped so, too.

Here's the current.

~$ cat test_fork.rb
require 'forkoff'
a = File.open('out', 'w')
[1].forkoff { |n|
  a.write n
}
a.close

~$ ~/installs/ruby_trunk_installed/bin/ruby -v test_fork.rb
ruby 1.9.2dev (2009-12-14 trunk 26099) [i686-linux]
[BUG] pthread_mutex_lock: Invalid argument (EINVAL)
ruby 1.9.2dev (2009-12-14 trunk 26099) [i686-linux]

-- control frame ----------
---------------------------

-- C level backtrace information -------------------------------------------
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_vm_bugreport+0x72)
[0xb7eb7482]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d876b1]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_bug+0x3a)
[0xb7d8776a]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_bug_errno+0x7f5)
[0xb7d884f5]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_thread_blocking_region+0x1fa)
[0xb7ebe0ea]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7daceda]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7daf3fe]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_io_fptr_finalize+0xe4)
[0xb7daf614]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d9d886]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d9e772]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(ruby_cleanup+0x12e)
[0xb7d8d0ce]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7ebdd96]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7ebde31]
/lib/libpthread.so.0 [0xb7d13fc0]
/lib/libc.so.6(clone+0x5e) [0xb7c32a1e]

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

Thanks!
-r