1#! /usr/local/bin/ksh93 -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24# Use is subject to license terms.
25#
26
27. $STF_SUITE/include/libtest.kshlib
28. $STF_SUITE/tests/zvol/zvol_common.kshlib
29
30###############################################################################
31#
32# __stc_assertion_start
33#
34# ID: zvol_swap_002_pos
35#
36# DESCRIPTION:
37# Using a zvol as swap space, fill with files until ENOSPC returned.
38#
39# STRATEGY:
40# 1. Create a pool
41# 2. Create a zvol volume
42# 3. Add zvol to swap space
43# 4. Fill swap space until ENOSPC is returned
44#
45# TESTABILITY: explicit
46#
47# TEST_AUTOMATION_LEVEL: automated
48#
49# CODING_STATUS: COMPLETED (2005-07-04)
50#
51# __stc_assertion_end
52#
53################################################################################
54
55log_unsupported "Fill swap will cause system hang, hide this case temporarily."
56
57verify_runnable "global"
58
59function cleanup
60{
61	$RM -rf $TMPDIR/$TESTDIR
62
63	if is_swap_inuse $voldev ; then
64		log_must $SWAP -d $voldev
65	fi
66}
67
68log_assert "Using a zvol as swap space, fill with files until ENOSPC returned."
69
70if ! is_dumpswap_supported $TESTPOOL ; then
71	log_unsupported "ZVOLs as swap devices are not currently supported."
72fi
73
74log_onexit cleanup
75
76voldev=/dev/zvol/$TESTPOOL/$TESTVOL
77
78$SWAP -l | $GREP zvol
79if (( $? != 0 )) ; then
80	log_note "Add zvol volume as swap space"
81	log_must $SWAP -a $voldev
82fi
83
84typeset -i filenum=0
85typeset -i retval=0
86typeset testdir=$TMPDIR/$TESTDIR
87
88log_note "Attempt to fill $TMPDIR until ENOSPC is hit"
89fill_fs $testdir -1 100 $BLOCKSZ $NUM_WRITES
90retval=$?
91
92(( $retval != $ENOSPC )) && \
93    log_fail "ENOSPC was not returned, $retval was returned instead"
94
95log_pass "ENOSPC was returned as expected"
96