| #!/usr/bin/env bash |
| # |
| # Test qcow2 lazy refcounts |
| # |
| # Copyright (C) 2012 Red Hat, Inc. |
| # Copyright IBM, Corp. 2010 |
| # |
| # Based on test 038. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| # creator |
| owner=stefanha@linux.vnet.ibm.com |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| _cleanup_test_img |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| |
| _supported_fmt qcow2 |
| _supported_proto file |
| _supported_os Linux |
| _default_cache_mode "writethrough" |
| _supported_cache_modes "writethrough" |
| |
| size=128M |
| |
| echo |
| echo "== Checking that image is clean on shutdown ==" |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=on" |
| _make_test_img $size |
| |
| $QEMU_IO -c "write -P 0x5a 0 512" "$TEST_IMG" | _filter_qemu_io |
| |
| # The dirty bit must not be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| _check_test_img |
| |
| echo |
| echo "== Creating a dirty image file ==" |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=on" |
| _make_test_img $size |
| |
| $QEMU_IO -c "write -P 0x5a 0 512" \ |
| -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 \ |
| | _filter_qemu_io |
| |
| # The dirty bit must be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| _check_test_img |
| |
| echo |
| echo "== Read-only access must still work ==" |
| |
| $QEMU_IO -r -c "read -P 0x5a 0 512" "$TEST_IMG" | _filter_qemu_io |
| |
| # The dirty bit must be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| |
| echo |
| echo "== Repairing the image file must succeed ==" |
| |
| _check_test_img -r all |
| |
| # The dirty bit must not be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| |
| echo |
| echo "== Data should still be accessible after repair ==" |
| |
| $QEMU_IO -c "read -P 0x5a 0 512" "$TEST_IMG" | _filter_qemu_io |
| |
| echo |
| echo "== Opening a dirty image read/write should repair it ==" |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=on" |
| _make_test_img $size |
| |
| $QEMU_IO -c "write -P 0x5a 0 512" \ |
| -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 \ |
| | _filter_qemu_io |
| |
| # The dirty bit must be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| |
| $QEMU_IO -c "write 0 512" "$TEST_IMG" | _filter_qemu_io |
| |
| # The dirty bit must not be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| |
| echo |
| echo "== Creating an image file with lazy_refcounts=off ==" |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=off" |
| _make_test_img $size |
| |
| $QEMU_IO -c "write -P 0x5a 0 512" \ |
| -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 \ |
| | _filter_qemu_io |
| |
| # The dirty bit must not be set since lazy_refcounts=off |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| _check_test_img |
| |
| echo |
| echo "== Committing to a backing file with lazy_refcounts=on ==" |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=on" |
| TEST_IMG="$TEST_IMG".base _make_test_img $size |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=on,backing_file=$TEST_IMG.base" |
| _make_test_img $size |
| |
| $QEMU_IO -c "write 0 512" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IMG commit "$TEST_IMG" |
| |
| # The dirty bit must not be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| $PYTHON qcow2.py "$TEST_IMG".base dump-header | grep incompatible_features |
| |
| _check_test_img |
| TEST_IMG="$TEST_IMG".base _check_test_img |
| |
| echo |
| echo "== Changing lazy_refcounts setting at runtime ==" |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=off" |
| _make_test_img $size |
| |
| $QEMU_IO -c "reopen -o lazy-refcounts=on" \ |
| -c "write -P 0x5a 0 512" \ |
| -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 \ |
| | _filter_qemu_io |
| |
| # The dirty bit must be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| _check_test_img |
| |
| IMGOPTS="compat=1.1,lazy_refcounts=on" |
| _make_test_img $size |
| |
| $QEMU_IO -c "reopen -o lazy-refcounts=off" \ |
| -c "write -P 0x5a 0 512" \ |
| -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 \ |
| | _filter_qemu_io |
| |
| # The dirty bit must not be set |
| $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |
| _check_test_img |
| |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |
| |