From owner-cvs-all@FreeBSD.ORG  Thu Feb  3 10:35:05 2005
Return-Path: <owner-cvs-all@FreeBSD.ORG>
Delivered-To: cvs-all@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id E18CA16A4CE; Thu,  3 Feb 2005 10:35:05 +0000 (GMT)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id B7B9743D41; Thu,  3 Feb 2005 10:35:05 +0000 (GMT)
	(envelope-from rwatson@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id j13AZ5lo022996;
	Thu, 3 Feb 2005 10:35:05 GMT
	(envelope-from rwatson@repoman.freebsd.org)
Received: (from rwatson@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id j13AZ5jd022995;
	Thu, 3 Feb 2005 10:35:05 GMT
	(envelope-from rwatson)
Message-Id: <200502031035.j13AZ5jd022995@repoman.freebsd.org>
From: Robert Watson <rwatson@FreeBSD.org>
Date: Thu, 3 Feb 2005 10:35:05 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/dev/sio sio.c
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.1
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: Thu, 03 Feb 2005 10:35:06 -0000

rwatson     2005-02-03 10:35:05 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/sio          sio.c 
  Log:
  When entering siocnputc() with (kdb_active), don't acquire (or
  release) the sio spin mutex, as use of synchronization primitives in
  the debugger can result in substantial problems.  With this patch in
  place entering the debugger via a serial console is made
  substantially more reliable.
  
  MFC after:      1 week
  Tested by:      kris
  Discussed with: bde
  
  Revision  Changes    Path
  1.457     +9 -5      src/sys/dev/sio/sio.c