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t_vnode_leak.sh revision 1.1 
      1 # $NetBSD: t_vnode_leak.sh,v 1.1 2007/11/12 15:18:29 jmmv Exp $
      2 #
      3 # Copyright (c) 2005, 2006, 2007 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
      8 # are met:
      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
     12 #    notice, this list of conditions and the following disclaimer in the
     13 #    documentation and/or other materials provided with the distribution.
     14 # 3. All advertising materials mentioning features or use of this software
     15 #    must display the following acknowledgement:
     16 #        This product includes software developed by the NetBSD
     17 #        Foundation, Inc. and its contributors.
     18 # 4. Neither the name of The NetBSD Foundation nor the names of its
     19 #    contributors may be used to endorse or promote products derived
     20 #    from this software without specific prior written permission.
     21 #
     22 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     23 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     24 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     25 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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     32 # POSSIBILITY OF SUCH DAMAGE.
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     34 
     35 atf_test_case main
     36 main_head() {
     37 	atf_set "descr" "Verifies that vnodes are not leaked and that" \
     38 	                "their reclaim operation works as expected: i.e.," \
     39 	                "when all free vnodes are exhausted, unused ones" \
     40 	                "have to be recycled, which is what the reclaim" \
     41 	                "operation does."
     42 	atf_set "require.user" "root"
     43 }
     44 main_body() {
     45 	echo "Lowering kern.maxvnodes to 2000"
     46 	sysctl kern.maxvnodes | awk '{ print $3; }' >oldvnodes
     47 	atf_check 'sysctl -w kern.maxvnodes=2000' 0 ignore null
     48 
     49 	test_mount -o -s$(((4000 + 2) * 4096))
     50 	echo "Creating 4000 directories"
     51 	for f in $(jot 4000); do
     52 		mkdir ${f}
     53 	done
     54 	test_unmount
     55 }
     56 main_cleanup() {
     57 	oldvnodes=$(cat oldvnodes)
     58 	echo "Restoring kern.maxvnodes to ${oldvnodes}"
     59 	sysctl -w kern.maxvnodes=${oldvnodes}
     60 }
     61 
     62 atf_init_test_cases() {
     63 	. $(atf_get_srcdir)/../h_funcs.subr
     64 	. $(atf_get_srcdir)/h_funcs.subr
     65 
     66 	atf_add_test_case main
     67 }
     68