From owner-cvs-all@FreeBSD.ORG  Tue May  8 21:50:00 2007
Return-Path: <owner-cvs-all@FreeBSD.ORG>
X-Original-To: cvs-all@FreeBSD.org
Delivered-To: cvs-all@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 231AE16A402;
	Tue,  8 May 2007 21:50:00 +0000 (UTC) (envelope-from jhb@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [69.147.83.41])
	by mx1.freebsd.org (Postfix) with ESMTP id F2D9413C48C;
	Tue,  8 May 2007 21:49:59 +0000 (UTC) (envelope-from jhb@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.8/8.13.8) with ESMTP id l48Lnxnx061130;
	Tue, 8 May 2007 21:49:59 GMT (envelope-from jhb@repoman.freebsd.org)
Received: (from jhb@localhost)
	by repoman.freebsd.org (8.13.8/8.13.8/Submit) id l48LnxIp061129;
	Tue, 8 May 2007 21:49:59 GMT (envelope-from jhb)
Message-Id: <200705082149.l48LnxIp061129@repoman.freebsd.org>
From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 8 May 2007 21:49:59 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Cc: 
Subject: cvs commit: src/sys/kern kern_condvar.c kern_synch.c
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: CVS commit messages for the entire tree <cvs-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-all>
List-Post: <mailto:cvs-all@freebsd.org>
List-Help: <mailto:cvs-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 08 May 2007 21:50:00 -0000

jhb         2007-05-08 21:49:59 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_condvar.c kern_synch.c 
  Log:
  Fix a potential LOR with sx_sleep() and cv_wait() with sx locks by
  1) adding the thread to the sleepq via sleepq_add() before dropping the
  lock, and 2) dropping the sleepq lock around calls to lc_unlock() for
  sleepable locks (i.e. locks that use sleepq's in their implementation).
  
  Revision  Changes    Path
  1.61      +25 -5     src/sys/kern/kern_condvar.c
  1.294     +7 -1      src/sys/kern/kern_synch.c