From: Roger Pack <redmine@...>
Date: 2009-11-26T01:40:15+09:00
Subject: [ruby-core:26908] [Bug #2394] [BUG] pthread_mutex_lock: 22 revisited

Issue #2394 has been updated by Roger Pack.


ruby -e 'fork { puts }' doesn't seem to quite do it, though maybe it would if I ran it over and over again.

Here's a more minimalistic test for it (reproduces every time):

require 'forkoff' # gem
a = File.open('bii', 'w')
[1].forkoff { |n|
 a.write '1'
}


[BUG] pthread_mutex_lock: Invalid argument (EINVAL)
ruby 1.9.2dev (2009-11-26 trunk 25926) [i686-linux]

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

-- C level backtrace information -------------------------------------------
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_vm_bugreport+0x72) [0xb7e76992]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d53581]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_bug+0x3a) [0xb7d5363a]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_bug_errno+0x7f5) [0xb7d543c5]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_thread_blocking_region+0x1fa) [0xb7e7d35a]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d78d9a]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d7b2be]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(rb_io_fptr_finalize+0xe4) [0xb7d7b4d4]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d69746]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7d6a632]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9(ruby_cleanup+0x12e) [0xb7d58f9e]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7e7c71e]
/home/rdp/installs/ruby_trunk_installed//lib/libruby.so.1.9 [0xb7e7c761]
/lib/libpthread.so.0 [0xb7cdffc0]
/lib/libc.so.6(clone+0x5e) [0xb7bfea1e]
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http://redmine.ruby-lang.org/issues/show/2394

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