t_vnode_leak.sh revision 313478 
1# $NetBSD: t_vnode_leak.sh,v 1.6 2010/11/07 17:51:18 jmmv Exp $
2#
3# Copyright (c) 2005, 2006, 2007, 2008 The NetBSD Foundation, Inc.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
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9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
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13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
16# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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21# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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25# POSSIBILITY OF SUCH DAMAGE.
26#
27
28atf_test_case main cleanup
29main_head() {
30	atf_set "descr" "Verifies that vnodes are not leaked and that" \
31	                "their reclaim operation works as expected: i.e.," \
32	                "when all free vnodes are exhausted, unused ones" \
33	                "have to be recycled, which is what the reclaim" \
34	                "operation does."
35	atf_set "require.user" "root"
36}
37main_body() {
38	echo "Lowering kern.maxvnodes to 2000"
39	# Begin FreeBSD
40	if true; then
41		sysctl -n kern.maxvnodes > oldvnodes
42	else
43	# End FreeBSD
44	sysctl kern.maxvnodes | awk '{ print $3; }' >oldvnodes
45	# Begin FreeBSD
46	fi
47	# End FreeBSD
48	atf_check -s eq:0 -o ignore -e empty sysctl -w kern.maxvnodes=2000
49
50	test_mount -o -s$(((4000 + 2) * 4096))
51	echo "Creating 4000 directories"
52	for f in $(jot 4000); do
53		mkdir ${f}
54	done
55	test_unmount
56}
57main_cleanup() {
58	oldvnodes=$(cat oldvnodes)
59	echo "Restoring kern.maxvnodes to ${oldvnodes}"
60	sysctl -w kern.maxvnodes=${oldvnodes}
61}
62
63atf_init_test_cases() {
64	. $(atf_get_srcdir)/../h_funcs.subr
65	. $(atf_get_srcdir)/h_funcs.subr
66
67	atf_add_test_case main
68}
69