From: Eric Wong <normalperson@...>
Date: 2011-08-24T11:18:45+09:00
Subject: [ruby-core:39077] Re: [Ruby 1.9 - Bug #5130] Thread.pass sticks on OpenBSD

Eric Wong <normalperson@yhbt.net> wrote:
> File thread_2.diff added

I think both thread*.diff are racy since inhibit_thread_creation is
checked outside of GVL and I'm not sure if the idea with these
patches is correct.

Unfortunately I cannot reproduce this issue on Linux, but I would
add debug prints around loops where native_cond_wait() is called
in gvl_yield() and also before sched_yield().

I also remember sched_yield() doesn't work on some OSes, maybe try to
change that to nanosleep()/select()?