1 #!/bin/bash 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 # 24 # Copyright 2009 Sun Microsystems, Inc. All rights reserved. 25 # Use is subject to license terms. 26 # 27 28 # 29 # Copyright (c) 2013 by Delphix. All rights reserved. 30 # 31 32 . $STF_SUITE/include/libtest.shlib 33 . $STF_SUITE/tests/functional/zvol/zvol_common.shlib 34 35 # 36 # DESCRIPTION: 37 # Add a swap zvol, and consume most (not all) of the space. This test 38 # used to fill up swap, which can hang the system. 39 # 40 # STRATEGY: 41 # 1. Create a new zvol and add it as swap 42 # 2. Fill /tmp with 80% the size of the zvol 43 # 5. Remove the new zvol, and restore original swap devices 44 # 45 46 verify_runnable "global" 47 log_assert "Using a zvol as swap space, fill /tmp to 80%." 48 49 vol=$TESTPOOL/$TESTVOL 50 swapdev=/dev/zvol/dsk/$vol 51 log_must $SWAP -a $swapdev 52 53 # Get 80% of the number of 512 blocks in the zvol 54 typeset -i count blks volsize=$(get_prop volsize $vol) 55 ((blks = (volsize / 512) * 80 / 100)) 56 # Use 'blks' to determine a count for dd based on a 1M block size. 57 ((count = blks / 2048)) 58 59 log_note "Fill 80% of swap" 60 log_must $DD if=/dev/urandom of=/tmp/$TESTFILE bs=1048576 count=$count 61 log_must $RM -f /tmp/$TESTFILE 62 log_must $SWAP -d $swapdev 63 64 log_pass "Using a zvol as swap space, fill /tmp to 80%."