threads/136345: Recursive read rwlocks in thread A cause deadlock with write lock in thread B

[Rink Springer]

Did some more testing; it works fine on Solaris 9 and 10. Also, the
deadlock doesn't appear on FreeBSD 6.1-STABLE (Sep 2006). Perhaps this
is a libthr issue?

-- 
Rink P.W. Springer                                - http://rink.nu
"Doom, gloom and despair. I like it!"
- Tiresias