91 lines
2.2 KiB
Plaintext
91 lines
2.2 KiB
Plaintext
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#!/bin/bash
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#
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# I/O errors when working with internal qcow2 snapshots, and repairing
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# the result
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#
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# Copyright (C) 2018 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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seq=$(basename $0)
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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rm -f "$TEST_DIR/blkdebug.conf"
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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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# This test is specific to qcow2
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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# This test needs clusters with at least a refcount of 2 so that
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# OFLAG_COPIED is not set. refcount_bits=1 is therefore unsupported.
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_unsupported_imgopts 'refcount_bits=1[^0-9]'
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echo
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echo '=== Simulating an I/O error during snapshot deletion ==='
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echo
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_make_test_img 64M
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$QEMU_IO -c 'write 0 64k' "$TEST_IMG" | _filter_qemu_io
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# Create the snapshot
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$QEMU_IMG snapshot -c foo "$TEST_IMG"
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# Verify the snapshot is there
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echo
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_img_info | grep 'Snapshot list'
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echo '(Snapshot filtered)'
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echo
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# Try to delete the snapshot (with an error happening when freeing the
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# then leaked clusters)
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cat > "$TEST_DIR/blkdebug.conf" <<EOF
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[inject-error]
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event = "cluster_free"
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errno = "5"
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EOF
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$QEMU_IMG snapshot -d foo "blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG"
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# Verify the snapshot is gone
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echo
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_img_info | grep 'Snapshot list'
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# Should only show leaks
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echo '--- Checking test image ---'
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_check_test_img
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echo
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# As there are only leaks, this should be able to fully repair the
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# image
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echo '--- Repairing test image ---'
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_check_test_img -r leaks
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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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