diff options
| -rwxr-xr-x | tests/qemu-iotests/217 | 90 | ||||
| -rw-r--r-- | tests/qemu-iotests/217.out | 42 | ||||
| -rw-r--r-- | tests/qemu-iotests/group | 1 |
3 files changed, 133 insertions, 0 deletions
diff --git a/tests/qemu-iotests/217 b/tests/qemu-iotests/217 new file mode 100755 index 0000000000..d3ab5d72be --- /dev/null +++ b/tests/qemu-iotests/217 @@ -0,0 +1,90 @@ +#!/bin/bash +# +# I/O errors when working with internal qcow2 snapshots, and repairing +# the result +# +# Copyright (C) 2018 Red Hat, Inc. +# +# 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/>. + +seq=$(basename $0) +echo "QA output created by $seq" + +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_test_img + rm -f "$TEST_DIR/blkdebug.conf" +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter + +# This test is specific to qcow2 +_supported_fmt qcow2 +_supported_proto file +_supported_os Linux + +# This test needs clusters with at least a refcount of 2 so that +# OFLAG_COPIED is not set. refcount_bits=1 is therefore unsupported. +_unsupported_imgopts 'refcount_bits=1[^0-9]' + +echo +echo '=== Simulating an I/O error during snapshot deletion ===' +echo + +_make_test_img 64M +$QEMU_IO -c 'write 0 64k' "$TEST_IMG" | _filter_qemu_io + +# Create the snapshot +$QEMU_IMG snapshot -c foo "$TEST_IMG" + +# Verify the snapshot is there +echo +_img_info | grep 'Snapshot list' +echo '(Snapshot filtered)' +echo + +# Try to delete the snapshot (with an error happening when freeing the +# then leaked clusters) +cat > "$TEST_DIR/blkdebug.conf" <<EOF +[inject-error] +event = "cluster_free" +errno = "5" +EOF +$QEMU_IMG snapshot -d foo "blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG" + +# Verify the snapshot is gone +echo +_img_info | grep 'Snapshot list' + +# Should only show leaks +echo '--- Checking test image ---' +_check_test_img + +echo + +# As there are only leaks, this should be able to fully repair the +# image +echo '--- Repairing test image ---' +_check_test_img -r leaks + + +# success, all done +echo '*** done' +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/217.out b/tests/qemu-iotests/217.out new file mode 100644 index 0000000000..e3fc40a8c7 --- /dev/null +++ b/tests/qemu-iotests/217.out @@ -0,0 +1,42 @@ +QA output created by 217 + +=== Simulating an I/O error during snapshot deletion === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +Snapshot list: +(Snapshot filtered) + +qcow2_free_clusters failed: Input/output error +qemu-img: Could not delete snapshot 'foo': Failed to free the cluster and L1 table: Input/output error + +--- Checking test image --- +Leaked cluster 4 refcount=2 reference=1 +Leaked cluster 5 refcount=2 reference=1 +Leaked cluster 6 refcount=1 reference=0 +Leaked cluster 7 refcount=1 reference=0 + +4 leaked clusters were found on the image. +This means waste of disk space, but no harm to data. + +--- Repairing test image --- +Leaked cluster 4 refcount=2 reference=1 +Leaked cluster 5 refcount=2 reference=1 +Leaked cluster 6 refcount=1 reference=0 +Leaked cluster 7 refcount=1 reference=0 +Repairing cluster 4 refcount=2 reference=1 +Repairing cluster 5 refcount=2 reference=1 +Repairing cluster 6 refcount=1 reference=0 +Repairing cluster 7 refcount=1 reference=0 +Repairing OFLAG_COPIED L2 cluster: l1_index=0 l1_entry=40000 refcount=1 +Repairing OFLAG_COPIED data cluster: l2_entry=50000 refcount=1 +The following inconsistencies were found and repaired: + + 4 leaked clusters + 2 corruptions + +Double checking the fixed image now... +No errors were found on the image. +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 93f93d71ba..0914c922d7 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -215,5 +215,6 @@ 214 rw auto 215 rw auto quick 216 rw auto quick +217 rw auto quick 218 rw auto quick 219 rw auto |