f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#!/bin/bash
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# CDDL HEADER START
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# The contents of this file are subject to the terms of the
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Common Development and Distribution License (the "License").
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# You may not use this file except in compliance with the License.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# or http://www.opensolaris.org/os/licensing.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# See the License for the specific language governing permissions
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# and limitations under the License.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# When distributing Covered Code, include this CDDL HEADER in each
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# If applicable, add the following below this CDDL HEADER, with the
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# fields enclosed by brackets "[]" replaced with your own identifying
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# information: Portions Copyright [yyyy] [name of copyright owner]
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# CDDL HEADER END
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Copyright 2009 Sun Microsystems, Inc. All rights reserved.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Use is subject to license terms.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy. $STF_SUITE/include/libtest.shlib
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy. $STF_SUITE/tests/functional/zvol/zvol_common.shlib
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# DESCRIPTION:
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Add a swap zvol, and consume most (not all) of the space. This test
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# used to fill up swap, which can hang the system.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# STRATEGY:
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# 1. Create a new zvol and add it as swap
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# 2. Fill /tmp with 80% the size of the zvol
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# 5. Remove the new zvol, and restore original swap devices
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyverify_runnable "global"
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedylog_assert "Using a zvol as swap space, fill /tmp to 80%."
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyvol=$TESTPOOL/$TESTVOL
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyswapdev=/dev/zvol/dsk/$vol
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_must swap -a $swapdev
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Get 80% of the number of 512 blocks in the zvol
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedytypeset -i count blks volsize=$(get_prop volsize $vol)
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy((blks = (volsize / 512) * 80 / 100))
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Use 'blks' to determine a count for dd based on a 1M block size.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy((count = blks / 2048))
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedylog_note "Fill 80% of swap"
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_must dd if=/dev/urandom of=/tmp/$TESTFILE bs=1048576 count=$count
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_must rm -f /tmp/$TESTFILE
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_must swap -d $swapdev
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedylog_pass "Using a zvol as swap space, fill /tmp to 80%."