From owner-svn-src-user@FreeBSD.ORG  Wed Sep 24 09:28:38 2014
Return-Path: <owner-svn-src-user@FreeBSD.ORG>
Delivered-To: svn-src-user@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id A0503139;
 Wed, 24 Sep 2014 09:28:38 +0000 (UTC)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 8C7DDB34;
 Wed, 24 Sep 2014 09:28:38 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id s8O9ScJP068943;
 Wed, 24 Sep 2014 09:28:38 GMT (envelope-from pho@FreeBSD.org)
Received: (from pho@localhost)
 by svn.freebsd.org (8.14.9/8.14.9/Submit) id s8O9Scrh068941;
 Wed, 24 Sep 2014 09:28:38 GMT (envelope-from pho@FreeBSD.org)
Message-Id: <201409240928.s8O9Scrh068941@svn.freebsd.org>
X-Authentication-Warning: svn.freebsd.org: pho set sender to pho@FreeBSD.org
 using -f
From: Peter Holm <pho@FreeBSD.org>
Date: Wed, 24 Sep 2014 09:28:38 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-user@freebsd.org
Subject: svn commit: r272062 - user/pho/stress2/misc
X-SVN-Group: user
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-user@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: "SVN commit messages for the experimental &quot; user&quot;
 src tree" <svn-src-user.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-user/>
List-Post: <mailto:svn-src-user@freebsd.org>
List-Help: <mailto:svn-src-user-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 24 Sep 2014 09:28:38 -0000

Author: pho
Date: Wed Sep 24 09:28:37 2014
New Revision: 272062
URL: http://svnweb.freebsd.org/changeset/base/272062

Log:
  Added comments.
  
  Sponsored by:	 EMC / Isilon storage division

Modified:
  user/pho/stress2/misc/mmap12.sh
  user/pho/stress2/misc/mmap13.sh

Modified: user/pho/stress2/misc/mmap12.sh
==============================================================================
--- user/pho/stress2/misc/mmap12.sh	Wed Sep 24 09:25:47 2014	(r272061)
+++ user/pho/stress2/misc/mmap12.sh	Wed Sep 24 09:28:37 2014	(r272062)
@@ -55,11 +55,15 @@ EOF
 #include <unistd.h>
 
 int
-main(int argc, char **argv)
+main(void)
 {
 	void *addr;
 	size_t sz = 1;
 
+/*
+ * This is the minimum amount of C code ot takes to panic the kernel.
+ * This is as submitted and thus not a complete and correct test program.
+ */
 	addr = mmap(NULL, sz, PROT_READ, MAP_ANON, -1, 0);
 	if (addr == NULL)
 		err(1, "mmap");

Modified: user/pho/stress2/misc/mmap13.sh
==============================================================================
--- user/pho/stress2/misc/mmap13.sh	Wed Sep 24 09:25:47 2014	(r272061)
+++ user/pho/stress2/misc/mmap13.sh	Wed Sep 24 09:28:37 2014	(r272062)
@@ -40,6 +40,9 @@ cc -o mmap13  -O2 -Wall -Wextra mmap13.c
 rm -f mmap13.c
 cd $odir
 
+# Both the 5000 and 500 are empirical values.
+# Combined they demonstrate the leak in a consistent way.
+
 v1=`sysctl -n vm.stats.vm.v_wire_count`
 for i in `jot 5000`; do
 	/tmp/mmap13