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.
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.
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]
24 # Copyright 2009 Sun Microsystems, Inc. All rights reserved.
25 # Use is subject to license terms.
29 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
32 . $STF_SUITE/include/libtest.shlib
33 . $STF_SUITE/tests/functional/zvol/zvol_common.shlib
37 # Add a swap zvol, and consume most (not all) of the space. This test
38 # used to fill up swap, which can hang the system.
41 # 1. Create a new zvol and add it as swap
42 # 2. Fill //var/tmp with 80% the size of the zvol
43 # 5. Remove the new zvol, and restore original swap devices
46 verify_runnable "global"
52 if is_swap_inuse $swapdev ; then
53 log_must swap_cleanup $swapdev
57 log_assert "Using a zvol as swap space, fill /var/tmp to 80%."
61 vol=$TESTPOOL/$TESTVOL
62 swapdev=${ZVOL_DEVDIR}/$vol
63 log_must swap_setup $swapdev
65 # Get 80% of the number of 512 blocks in the zvol
66 typeset -i count blks volsize=$(get_prop volsize $vol)
67 ((blks = (volsize / 512) * 80 / 100))
68 # Use 'blks' to determine a count for dd based on a 1M block size.
69 ((count = blks / 2048))
71 log_note "Fill 80% of swap"
72 log_must dd if=/dev/urandom of=$TEMPFILE bs=1048576 count=$count
73 log_must rm -f $TEMPFILE
74 log_must swap_cleanup $swapdev
76 log_pass "Using a zvol as swap space, fill /var/tmp to 80%."