From owner-cvs-src-old@FreeBSD.ORG  Thu Nov 13 15:00:54 2008
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id CF73D1065718
	for <cvs-src-old@freebsd.org>; Thu, 13 Nov 2008 15:00:54 +0000 (UTC)
	(envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id C104F8FC17
	for <cvs-src-old@freebsd.org>; Thu, 13 Nov 2008 15:00:54 +0000 (UTC)
	(envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id mADF0s93032168
	for <cvs-src-old@freebsd.org>; Thu, 13 Nov 2008 15:00:54 GMT
	(envelope-from kib@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id mADF0sRg032167
	for cvs-src-old@freebsd.org; Thu, 13 Nov 2008 15:00:54 GMT
	(envelope-from kib@repoman.freebsd.org)
Message-Id: <200811131500.mADF0sRg032167@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	kib@repoman.freebsd.org using -f
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 13 Nov 2008 15:00:40 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_7
Subject: cvs commit: src/sys/compat/linux linux_emul.c
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 13 Nov 2008 15:00:54 -0000

kib         2008-11-13 15:00:40 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/compat/linux     linux_emul.c 
  Log:
  SVN rev 184924 on 2008-11-13 15:00:40Z by kib
  
  MFC r184501:
  The code in linux_proc_exit() contains a race when multiple linux based
  processes exits at the same time. The linux_emuldata structure is freed
  but p->p_emuldata is left as a dangling pointer to the just freed
  memory.
  
  The check for W_EXIT in the loop scanning the child processes isn't safe
  since the state of the child process can change right afterwards. Lock
  the process and check the W_EXIT before delivering signal.
  
  Approved by:    re (kensmith)
  
  Revision  Changes    Path
  1.20.2.1  +3 -3      src/sys/compat/linux/linux_emul.c