diff options
Diffstat (limited to 'tests/qemu-iotests')
| -rwxr-xr-x | tests/qemu-iotests/182 | 71 | ||||
| -rw-r--r-- | tests/qemu-iotests/182.out | 9 | ||||
| -rwxr-xr-x | tests/qemu-iotests/220 | 96 | ||||
| -rw-r--r-- | tests/qemu-iotests/220.out | 54 | ||||
| -rw-r--r-- | tests/qemu-iotests/group | 1 |
5 files changed, 231 insertions, 0 deletions
diff --git a/tests/qemu-iotests/182 b/tests/qemu-iotests/182 index 4b31592fb8..3b7689c1d5 100755 --- a/tests/qemu-iotests/182 +++ b/tests/qemu-iotests/182 @@ -31,6 +31,7 @@ status=1 # failure is the default! _cleanup() { _cleanup_test_img + rm -f "$TEST_IMG.overlay" } trap "_cleanup; exit \$status" 0 1 2 3 15 @@ -71,6 +72,76 @@ echo 'quit' | $QEMU -nographic -monitor stdio \ _cleanup_qemu +echo +echo '=== Testing reopen ===' +echo + +# This tests that reopening does not unshare any permissions it should +# not unshare +# (There was a bug where reopening shared exactly the opposite of the +# permissions it was supposed to share) + +_launch_qemu + +_send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'qmp_capabilities'}" \ + 'return' + +# Open the image without any format layer (we are not going to access +# it, so that is fine) +# This should keep all permissions shared. +success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'blockdev-add', + 'arguments': { + 'node-name': 'node0', + 'driver': 'file', + 'filename': '$TEST_IMG', + 'locking': 'on' + } }" \ + 'return' \ + 'error' + +# This snapshot will perform a reopen to drop R/W to RO. +# It should still keep all permissions shared. +success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'blockdev-snapshot-sync', + 'arguments': { + 'node-name': 'node0', + 'snapshot-file': '$TEST_IMG.overlay', + 'snapshot-node-name': 'node1' + } }" \ + 'return' \ + 'error' + +# Now open the same file again +# This does not require any permissions (and does not unshare any), so +# this will not conflict with node0. +success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'blockdev-add', + 'arguments': { + 'node-name': 'node1', + 'driver': 'file', + 'filename': '$TEST_IMG', + 'locking': 'on' + } }" \ + 'return' \ + 'error' + +# Now we attach the image to a virtio-blk device. This device does +# require some permissions (at least WRITE and READ_CONSISTENT), so if +# reopening node0 unshared any (which it should not have), this will +# fail (but it should not). +success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'device_add', + 'arguments': { + 'driver': 'virtio-blk', + 'drive': 'node1' + } }" \ + 'return' \ + 'error' + +_cleanup_qemu + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/182.out b/tests/qemu-iotests/182.out index f1463c8862..af501ca3f3 100644 --- a/tests/qemu-iotests/182.out +++ b/tests/qemu-iotests/182.out @@ -5,4 +5,13 @@ Starting QEMU Starting a second QEMU using the same image should fail QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=none,id=drive0,file.locking=on: Failed to get "write" lock Is another process using the image [TEST_DIR/t.qcow2]? + +=== Testing reopen === + +{"return": {}} +{"return": {}} +Formatting 'TEST_DIR/t.qcow2.overlay', fmt=qcow2 size=197120 backing_file=TEST_DIR/t.qcow2 backing_fmt=file cluster_size=65536 lazy_refcounts=off refcount_bits=16 +{"return": {}} +{"return": {}} +{"return": {}} *** done diff --git a/tests/qemu-iotests/220 b/tests/qemu-iotests/220 new file mode 100755 index 0000000000..0c5682bda0 --- /dev/null +++ b/tests/qemu-iotests/220 @@ -0,0 +1,96 @@ +#!/bin/bash +# +# max limits on compression in huge qcow2 files +# +# Copyright (C) 2018 Red Hat, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +seq=$(basename $0) +echo "QA output created by $seq" + +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_test_img +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter +. ./common.pattern + +_supported_fmt qcow2 +_supported_proto file +_supported_os Linux + +echo "== Creating huge file ==" + +# Sanity check: We require a file system that permits the creation +# of a HUGE (but very sparse) file. tmpfs works, ext4 does not. +if ! truncate --size=513T "$TEST_IMG"; then + _notrun "file system on $TEST_DIR does not support large enough files" +fi +rm "$TEST_IMG" +IMGOPTS='cluster_size=2M,refcount_bits=1' _make_test_img 513T + +echo "== Populating refcounts ==" +# We want an image with 256M refcounts * 2M clusters = 512T referenced. +# Each 2M cluster holds 16M refcounts; the refcount table initially uses +# 1 refblock, so we need to add 15 more. The refcount table lives at 2M, +# first refblock at 4M, L2 at 6M, so our remaining additions start at 8M. +# Then, for each refblock, mark it as fully populated. +to_hex() { + printf %016x\\n $1 | sed 's/\(..\)/\\x\1/g' +} +truncate --size=38m "$TEST_IMG" +entry=$((0x200000)) +$QEMU_IO_PROG -f raw -c "w -P 0xff 4m 2m" "$TEST_IMG" | _filter_qemu_io +for i in {1..15}; do + offs=$((0x600000 + i*0x200000)) + poke_file "$TEST_IMG" $((i*8 + entry)) $(to_hex $offs) + $QEMU_IO_PROG -f raw -c "w -P 0xff $offs 2m" "$TEST_IMG" | _filter_qemu_io +done + +echo "== Checking file before ==" +# FIXME: 'qemu-img check' doesn't diagnose refcounts beyond the end of +# the file as leaked clusters +_check_test_img 2>&1 | sed '/^Leaked cluster/d' +stat -c 'image size %s' "$TEST_IMG" + +echo "== Trying to write compressed cluster ==" +# Given our file size, the next available cluster at 512T lies beyond the +# maximum offset that a compressed 2M cluster can reside in +$QEMU_IO_PROG -c 'w -c 0 2m' "$TEST_IMG" | _filter_qemu_io +# The attempt failed, but ended up allocating a new refblock +stat -c 'image size %s' "$TEST_IMG" + +echo "== Writing normal cluster ==" +# The failed write should not corrupt the image, so a normal write succeeds +$QEMU_IO_PROG -c 'w 0 2m' "$TEST_IMG" | _filter_qemu_io + +echo "== Checking file after ==" +# qemu-img now sees the millions of leaked clusters, thanks to the allocations +# at 512T. Undo many of our faked references to speed up the check. +$QEMU_IO_PROG -f raw -c "w -z 5m 1m" -c "w -z 8m 30m" "$TEST_IMG" | + _filter_qemu_io +_check_test_img 2>&1 | sed '/^Leaked cluster/d' + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/220.out b/tests/qemu-iotests/220.out new file mode 100644 index 0000000000..af3021fd88 --- /dev/null +++ b/tests/qemu-iotests/220.out @@ -0,0 +1,54 @@ +QA output created by 220 +== Creating huge file == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=564049465049088 +== Populating refcounts == +wrote 2097152/2097152 bytes at offset 4194304 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 8388608 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 10485760 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 12582912 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 14680064 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 16777216 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 18874368 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 20971520 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 23068672 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 25165824 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 27262976 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 29360128 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 31457280 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 33554432 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 35651584 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2097152/2097152 bytes at offset 37748736 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +== Checking file before == +No errors were found on the image. +image size 39845888 +== Trying to write compressed cluster == +write failed: Input/output error +image size 562949957615616 +== Writing normal cluster == +wrote 2097152/2097152 bytes at offset 0 +2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +== Checking file after == +wrote 1048576/1048576 bytes at offset 5242880 +1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 31457280/31457280 bytes at offset 8388608 +30 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +8388589 leaked clusters were found on the image. +This means waste of disk space, but no harm to data. +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index ebe4fe78bc..4d194716f2 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -219,6 +219,7 @@ 217 rw auto quick 218 rw auto quick 219 rw auto +220 rw auto 221 rw auto quick 222 rw auto quick 223 rw auto quick |