PERFORCE change 65074 for review

[Brian Fundakowski Feldman]

On Sun, Nov 14, 2004 at 05:13:24AM +0000, David Xu wrote:
> http://perforce.freebsd.org/chv.cgi?CH=65074
> 
> Change 65074 by davidxu at davidxu_alona on 2004/11/14 05:12:40
> 
> 	1. Fix a race between signal and umtx_unlock. a waiter
> 	   may be resumed by signal and left or exited, heavily
> 	   loaded test causes kernel to crash.
> 	2. Use distributed queue locks instead of single giant
> 	   lock.

This sounds like it could be why recently valgrind has grown broken,
and is now entirely non-working and someimes crashes the system?

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green at FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\