87 lines
2.5 KiB
Bash
Executable File
87 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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#
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# Combined test to grow the refcount table and test snapshots.
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#
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# Copyright (C) 2009 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=kwolf@redhat.com
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seq=`basename $0`
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echo "QA output created by $seq"
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here=`pwd`
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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true
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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# actually any format that supports snapshots
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_supported_fmt qcow2
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_supported_proto generic
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_supported_os Linux
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# Internal snapshots are (currently) impossible with refcount_bits=1
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_unsupported_imgopts 'refcount_bits=1[^0-9]'
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echo
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echo "creating image"
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# With 1k clusters a refcount block contains 512 clusters
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# This makes 512k of the image file covered by a refcount block
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# A refcount table that spans one clusters has 128 refcount
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# tables which makes up 64M in the image file.
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#
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# We use a 36M image, so initially we can be sure that only one cluster is used
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# for the refcount table. On the other hand this is big enough to cause a
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# refcount table growth when rewriting the image after creating one snapshot.
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size=36M
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CLUSTER_SIZE=1k
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_make_test_img $size
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# Create two snapshots which fill the image with two different patterns
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echo "creating first snapshot"
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$QEMU_IO -c "aio_write -P 123 0 $size" "$TEST_IMG" | _filter_qemu_io
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$QEMU_IMG snapshot -c snap1 "$TEST_IMG"
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echo "creating second snapshot"
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$QEMU_IO -c "aio_write -P 165 0 $size" "$TEST_IMG" | _filter_qemu_io
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$QEMU_IMG snapshot -c snap2 "$TEST_IMG"
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# Now check the pattern
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echo "checking first snapshot"
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$QEMU_IMG snapshot -a snap1 "$TEST_IMG"
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$QEMU_IO -c "aio_read -P 123 0 $size" "$TEST_IMG" | _filter_qemu_io
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echo "checking second snapshot"
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$QEMU_IMG snapshot -a snap2 "$TEST_IMG"
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$QEMU_IO -c "aio_read -P 165 0 $size" "$TEST_IMG" | _filter_qemu_io
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echo
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echo "checking image for errors"
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_check_test_img
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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