svn commit: r256262 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Thu Oct 10 11:47:50 2013
New Revision: 256262
URL: http://svnweb.freebsd.org/changeset/base/256262

Log:
  Added regression test.
  
  Sponsored by:	EMC / Isilon storage division

Added:
  user/pho/stress2/misc/fdgrowtable.sh   (contents, props changed)

Added: user/pho/stress2/misc/fdgrowtable.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/fdgrowtable.sh	Thu Oct 10 11:47:50 2013	(r256262)
@@ -0,0 +1,104 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2013 EMC Corp.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+# Regression test for r236822.
+# http://people.freebsd.org/~pho/stress/log/fdgrowtable.txt
+# Fixed in r256210.
+
+. ../default.cfg
+
+max=`sysctl kern.maxfilesperproc | sed 's/.*: //'`
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > fdgrowtable.c
+cc -o fdgrowtable -Wall -Wextra -O2 fdgrowtable.c || exit 1
+rm -f fdgrowtable.c
+cd $here
+
+su ${testuser} -c "/tmp/fdgrowtable $max" &
+while kill -0 $! 2>/dev/null; do
+	../testcases/swap/swap -t 2m -i 40 -h
+done
+wait
+rm -d /tmp/fdgrowtable
+exit
+
+EOF
+#include <sys/types.h>
+#include <fcntl.h>
+#include <err.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define PARALLEL 3
+
+int max;
+
+void test(void)
+{
+	int i;
+
+	for (i = 0; i < max; i++) {
+		if (dup2(1, i + 3) == -1)
+			err(1, "dup2(%d)", i + 3);
+	}
+	_exit(0);
+}
+
+
+int
+main(int argc, char **argv)
+{
+	int i, j;
+
+	if (argc == 2)
+		max = atoi(argv[1]);
+	else
+		err(1, "Usage: %s <maxfiles>", argv[0]);
+
+	max = (max - 3) / PARALLEL;
+
+	for (j = 0; j < 300; j++) {
+		for (i = 0; i < PARALLEL; i++) {
+			if (fork() == 0)
+				test();
+		}
+
+		for (i = 0; i < PARALLEL; i++)
+			wait(NULL);
+	}
+
+	return (0);
+}