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Date: Sun, 14 Nov 2004 01:27:48 -0500
From: Brian Fundakowski Feldman <green@FreeBSD.org>
To: David Xu <davidxu@FreeBSD.org>
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References: <200411140513.iAE5DOTv056478@repoman.freebsd.org>
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cc: Perforce Change Reviews <perforce@FreeBSD.org>
Subject: Re: PERFORCE change 65074 for review
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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@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@FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\