1 #!/bin/ksh -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 # 24 # Copyright (c) 2013 by Delphix. All rights reserved. 25 # 26 27 . $STF_SUITE/include/libtest.shlib 28 29 # 30 # DESCRIPTION: 31 # Exercise the traversal suspend/resume code in async_destroy by 32 # destroying a file system that has more blocks than we can free 33 # in a single txg. 34 # 35 # STRATEGY: 36 # 1. Create a file system 37 # 2. Set recordsize to 512 to create the maximum number of blocks 38 # 3. Set compression to off to force zero-ed blocks to be written 39 # 4. dd a lot of data from /dev/zero to the file system 40 # 5. Destroy the file system 41 # 6. Wait for the freeing property to go to 0 42 # 7. Use zdb to check for leaked blocks 43 # 44 45 TEST_FS=$TESTPOOL/async_destroy 46 47 verify_runnable "both" 48 49 function cleanup 50 { 51 datasetexists $TEST_FS && log_must $ZFS destroy $TEST_FS 52 } 53 54 log_onexit cleanup 55 log_assert "async_destroy can suspend and resume traversal" 56 57 log_must $ZFS create -o recordsize=512 -o compression=off $TEST_FS 58 59 # 60 # Fill with 2G 61 # 62 log_must $DD bs=1024k count=2048 if=/dev/zero of=/$TEST_FS/file 63 64 log_must $ZFS destroy $TEST_FS 65 66 count=0 67 while [[ "0" != "$($ZPOOL list -Ho freeing $TESTPOOL)" ]]; do 68 count=$((count + 1)) 69 sleep 1 70 done 71 72 # 73 # We assert that the data took a few seconds to free to make sure that 74 # we actually exercised the suspend/resume code. The destroy should 75 # actually take much longer than this, so false positives are not likely. 76 # 77 log_must test $count -gt 5 78 79 # 80 # Check for leaked blocks. 81 # 82 log_must $ZDB -b $TESTPOOL 83 84 log_pass "async_destroy can suspend and resume traversal"