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Diffstat (limited to 'tests/qemu-iotests/039')
| -rwxr-xr-x | tests/qemu-iotests/039 | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/tests/qemu-iotests/039 b/tests/qemu-iotests/039 new file mode 100755 index 00000000..859705f8 --- /dev/null +++ b/tests/qemu-iotests/039 @@ -0,0 +1,162 @@ +#!/bin/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" + +here=`pwd` +tmp=/tmp/$$ +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" + +_subshell_exec() +{ + # Executing crashing commands in a subshell prevents information like the + # "Killed" line from being lost + (exec "$@") +} + +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 + +_subshell_exec $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 + +_subshell_exec $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 + +_subshell_exec $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 + + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 + |