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, 2016 by Delphix. All rights reserved. 30# 31 32. $STF_SUITE/include/libtest.shlib 33. $STF_SUITE/tests/functional/zvol/zvol_common.shlib 34 35# 36# DESCRIPTION: 37# Add a swap zvol, and consume most (not all) of the space. This test 38# used to fill up swap, which can hang the system. 39# 40# STRATEGY: 41# 1. Create a new zvol and add it as swap 42# 2. Fill /tmp with 80% the size of the zvol 43# 5. Remove the new zvol, and restore original swap devices 44# 45 46verify_runnable "global" 47log_assert "Using a zvol as swap space, fill /tmp to 80%." 48 49vol=$TESTPOOL/$TESTVOL 50swapdev=/dev/zvol/dsk/$vol 51log_must swap -a $swapdev 52 53# Get 80% of the number of 512 blocks in the zvol 54typeset -i count blks volsize=$(get_prop volsize $vol) 55((blks = (volsize / 512) * 80 / 100)) 56# Use 'blks' to determine a count for dd based on a 1M block size. 57((count = blks / 2048)) 58 59log_note "Fill 80% of swap" 60log_must dd if=/dev/urandom of=/tmp/$TESTFILE bs=1048576 count=$count 61log_must rm -f /tmp/$TESTFILE 62log_must swap -d $swapdev 63 64log_pass "Using a zvol as swap space, fill /tmp to 80%." 65