4 # Test corner cases with unusual block geometries
6 # Copyright (C) 2016-2018 Red Hat, Inc.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 owner=eblake@redhat.com
26 echo "QA output created by $seq"
28 status=1 # failure is the default!
34 trap "_cleanup; exit \$status" 0 1 2 3 15
36 # get standard environment, filters and checks
40 # This test is runnable under compat=0.10; see test 204 for additional
41 # tests specific to compat=1.1.
44 _supported_proto file fuse
48 options=driver=blkdebug,image.driver=qcow2
51 echo "== setting up files =="
53 TEST_IMG="$TEST_IMG.base" _make_test_img $size
54 $QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io
55 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT
56 $QEMU_IO -c "write -P 22 0 $size" "$TEST_IMG" | _filter_qemu_io
58 # Limited to 64k max-transfer
60 echo "== constrained alignment and max-transfer =="
61 limits=align=4k,max-transfer=64k
62 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
63 -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io
66 echo "== write zero with constrained max-transfer =="
67 limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE
68 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
69 -c "write -z 8003584 2093056" | _filter_qemu_io
71 # non-power-of-2 write-zero/discard alignments
73 echo "== non-power-of-2 write zeroes limits =="
75 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
76 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
77 -c "write -z 32M 32M" | _filter_qemu_io
80 echo "== non-power-of-2 discard limits =="
82 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
83 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
84 -c "discard 80000001 30M" | _filter_qemu_io
87 echo "== verify image content =="
91 if ($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" |
92 grep "compat: 0.10" > /dev/null); then
93 # In v2 images clusters are not discarded when there is a backing file
94 # so the previous value is read
97 # Discarded clusters are zeroed for v3 or later
101 echo read -P 22 0 1000
102 echo read -P 33 1000 128k
103 echo read -P 22 132072 7871512
104 echo read -P 0 8003584 2093056
105 echo read -P 22 10096640 23457792
106 echo read -P 0 32M 32M
107 echo read -P 22 64M 13M
108 echo read -P $discarded 77M 29M
109 echo read -P 22 106M 22M
112 verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io