From owner-svn-src-all@FreeBSD.ORG  Wed Oct 29 12:11:48 2008
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id E6C9E1065679;
	Wed, 29 Oct 2008 12:11:48 +0000 (UTC)
	(envelope-from davidxu@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id D6A068FC39;
	Wed, 29 Oct 2008 12:11:48 +0000 (UTC)
	(envelope-from davidxu@FreeBSD.org)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id m9TCBm2i022372;
	Wed, 29 Oct 2008 12:11:48 GMT (envelope-from davidxu@svn.freebsd.org)
Received: (from davidxu@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id m9TCBmm7022371;
	Wed, 29 Oct 2008 12:11:48 GMT (envelope-from davidxu@svn.freebsd.org)
Message-Id: <200810291211.m9TCBmm7022371@svn.freebsd.org>
From: David Xu <davidxu@FreeBSD.org>
Date: Wed, 29 Oct 2008 12:11:48 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r184438 - head/sys/kern
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
	user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 29 Oct 2008 12:11:49 -0000

Author: davidxu
Date: Wed Oct 29 12:11:48 2008
New Revision: 184438
URL: http://svn.freebsd.org/changeset/base/184438

Log:
  If threads limit is exceeded, increase the totoal number
  of failures.

Modified:
  head/sys/kern/kern_thr.c

Modified: head/sys/kern/kern_thr.c
==============================================================================
--- head/sys/kern/kern_thr.c	Wed Oct 29 11:03:15 2008	(r184437)
+++ head/sys/kern/kern_thr.c	Wed Oct 29 12:11:48 2008	(r184438)
@@ -76,6 +76,7 @@ suword_lwpid(void *addr, lwpid_t lwpid)
 #endif
 
 extern int max_threads_per_proc;
+extern int max_threads_hits;
 
 static int create_thread(struct thread *td, mcontext_t *ctx,
 			 void (*start_func)(void *), void *arg,
@@ -154,8 +155,10 @@ create_thread(struct thread *td, mcontex
 	p = td->td_proc;
 
 	/* Have race condition but it is cheap. */
-	if (p->p_numthreads >= max_threads_per_proc)
+	if (p->p_numthreads >= max_threads_per_proc) {
+		++max_threads_hits;
 		return (EPROCLIM);
+	}
 
 	if (rtp != NULL) {
 		switch(rtp->type) {