iotests: Split 214 off of 122
Commit abd3622cc0 added a case to 122
regarding how the qcow2 driver handles an incorrect compressed data
length value. This does not really fit into 122, as that file is
supposed to contain qemu-img convert test cases, which this case is not.
So this patch splits it off into its own file; maybe we will even get
more qcow2-only compression tests in the future.
Also, that test case does not work with refcount_bits=1, so mark that
option as unsupported.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180406164108.26118-1-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz
parent
bd21935b50
commit
6cba5377f5
@ -129,53 +129,6 @@ $QEMU_IO -c "read -P 0x44 1023k 1k" "$TEST_IMG" 2>&1 | _filter_qemu_io | _fil
|
||||
$QEMU_IO -c "read -P 0 1024k 1022k" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
|
||||
echo
|
||||
echo "=== Corrupted size field in compressed cluster descriptor ==="
|
||||
echo
|
||||
# Create an empty image and fill half of it with compressed data.
|
||||
# The L2 entries of the two compressed clusters are located at
|
||||
# 0x800000 and 0x800008, their original values are 0x4008000000a00000
|
||||
# and 0x4008000000a00802 (5 sectors for compressed data each).
|
||||
_make_test_img 8M -o cluster_size=2M
|
||||
$QEMU_IO -c "write -c -P 0x11 0 2M" -c "write -c -P 0x11 2M 2M" "$TEST_IMG" \
|
||||
2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# Reduce size of compressed data to 4 sectors: this corrupts the image.
|
||||
poke_file "$TEST_IMG" $((0x800000)) "\x40\x06"
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# 'qemu-img check' however doesn't see anything wrong because it
|
||||
# doesn't try to decompress the data and the refcounts are consistent.
|
||||
# TODO: update qemu-img so this can be detected.
|
||||
_check_test_img
|
||||
|
||||
# Increase size of compressed data to the maximum (8192 sectors).
|
||||
# This makes QEMU read more data (8192 sectors instead of 5, host
|
||||
# addresses [0xa00000, 0xdfffff]), but the decompression algorithm
|
||||
# stops once we have enough to restore the uncompressed cluster, so
|
||||
# the rest of the data is ignored.
|
||||
poke_file "$TEST_IMG" $((0x800000)) "\x7f\xfe"
|
||||
# Do it also for the second compressed cluster (L2 entry at 0x800008).
|
||||
# In this case the compressed data would span 3 host clusters
|
||||
# (host addresses: [0xa00802, 0xe00801])
|
||||
poke_file "$TEST_IMG" $((0x800008)) "\x7f\xfe"
|
||||
|
||||
# Here the image is too small so we're asking QEMU to read beyond the
|
||||
# end of the image.
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
# But if we grow the image we won't be reading beyond its end anymore.
|
||||
$QEMU_IO -c "write -P 0x22 4M 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# The refcount data is however wrong because due to the increased size
|
||||
# of the compressed data it now reaches the following host clusters.
|
||||
# This can be repaired by qemu-img check by increasing the refcount of
|
||||
# those clusters.
|
||||
# TODO: update qemu-img to correct the compressed cluster size instead.
|
||||
_check_test_img -r all
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
$QEMU_IO -c "read -P 0x22 4M 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
echo
|
||||
echo "=== Full allocation with -S 0 ==="
|
||||
echo
|
||||
|
||||
@ -99,39 +99,6 @@ read 1024/1024 bytes at offset 1047552
|
||||
read 1046528/1046528 bytes at offset 1048576
|
||||
1022 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
|
||||
=== Corrupted size field in compressed cluster descriptor ===
|
||||
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=8388608
|
||||
wrote 2097152/2097152 bytes at offset 0
|
||||
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
wrote 2097152/2097152 bytes at offset 2097152
|
||||
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
read failed: Input/output error
|
||||
No errors were found on the image.
|
||||
read 4194304/4194304 bytes at offset 0
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
wrote 4194304/4194304 bytes at offset 4194304
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
read 4194304/4194304 bytes at offset 0
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
ERROR cluster 6 refcount=1 reference=3
|
||||
ERROR cluster 7 refcount=1 reference=2
|
||||
Repairing cluster 6 refcount=1 reference=3
|
||||
Repairing cluster 7 refcount=1 reference=2
|
||||
Repairing OFLAG_COPIED data cluster: l2_entry=8000000000c00000 refcount=3
|
||||
Repairing OFLAG_COPIED data cluster: l2_entry=8000000000e00000 refcount=2
|
||||
The following inconsistencies were found and repaired:
|
||||
|
||||
0 leaked clusters
|
||||
4 corruptions
|
||||
|
||||
Double checking the fixed image now...
|
||||
No errors were found on the image.
|
||||
read 4194304/4194304 bytes at offset 0
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
read 4194304/4194304 bytes at offset 4194304
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
|
||||
=== Full allocation with -S 0 ===
|
||||
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
|
||||
|
||||
97
tests/qemu-iotests/214
Executable file
97
tests/qemu-iotests/214
Executable file
@ -0,0 +1,97 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# Test qcow2 image compression
|
||||
#
|
||||
# Copyright (C) 2018 Igalia, S.L.
|
||||
# Author: Alberto Garcia <berto@igalia.com>
|
||||
#
|
||||
# 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 $seq"
|
||||
|
||||
here=$PWD
|
||||
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
|
||||
|
||||
# Repairing the corrupted image requires qemu-img check to store a
|
||||
# refcount up to 3, which requires at least two refcount bits.
|
||||
_unsupported_imgopts 'refcount_bits=1[^0-9]'
|
||||
|
||||
|
||||
echo
|
||||
echo "=== Corrupted size field in compressed cluster descriptor ==="
|
||||
echo
|
||||
# Create an empty image and fill half of it with compressed data.
|
||||
# The L2 entries of the two compressed clusters are located at
|
||||
# 0x800000 and 0x800008, their original values are 0x4008000000a00000
|
||||
# and 0x4008000000a00802 (5 sectors for compressed data each).
|
||||
_make_test_img 8M -o cluster_size=2M
|
||||
$QEMU_IO -c "write -c -P 0x11 0 2M" -c "write -c -P 0x11 2M 2M" "$TEST_IMG" \
|
||||
2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# Reduce size of compressed data to 4 sectors: this corrupts the image.
|
||||
poke_file "$TEST_IMG" $((0x800000)) "\x40\x06"
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# 'qemu-img check' however doesn't see anything wrong because it
|
||||
# doesn't try to decompress the data and the refcounts are consistent.
|
||||
# TODO: update qemu-img so this can be detected.
|
||||
_check_test_img
|
||||
|
||||
# Increase size of compressed data to the maximum (8192 sectors).
|
||||
# This makes QEMU read more data (8192 sectors instead of 5, host
|
||||
# addresses [0xa00000, 0xdfffff]), but the decompression algorithm
|
||||
# stops once we have enough to restore the uncompressed cluster, so
|
||||
# the rest of the data is ignored.
|
||||
poke_file "$TEST_IMG" $((0x800000)) "\x7f\xfe"
|
||||
# Do it also for the second compressed cluster (L2 entry at 0x800008).
|
||||
# In this case the compressed data would span 3 host clusters
|
||||
# (host addresses: [0xa00802, 0xe00801])
|
||||
poke_file "$TEST_IMG" $((0x800008)) "\x7f\xfe"
|
||||
|
||||
# Here the image is too small so we're asking QEMU to read beyond the
|
||||
# end of the image.
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
# But if we grow the image we won't be reading beyond its end anymore.
|
||||
$QEMU_IO -c "write -P 0x22 4M 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# The refcount data is however wrong because due to the increased size
|
||||
# of the compressed data it now reaches the following host clusters.
|
||||
# This can be repaired by qemu-img check by increasing the refcount of
|
||||
# those clusters.
|
||||
# TODO: update qemu-img to correct the compressed cluster size instead.
|
||||
_check_test_img -r all
|
||||
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
$QEMU_IO -c "read -P 0x22 4M 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# success, all done
|
||||
echo '*** done'
|
||||
rm -f $seq.full
|
||||
status=0
|
||||
35
tests/qemu-iotests/214.out
Normal file
35
tests/qemu-iotests/214.out
Normal file
@ -0,0 +1,35 @@
|
||||
QA output created by 214
|
||||
|
||||
=== Corrupted size field in compressed cluster descriptor ===
|
||||
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=8388608
|
||||
wrote 2097152/2097152 bytes at offset 0
|
||||
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
wrote 2097152/2097152 bytes at offset 2097152
|
||||
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
read failed: Input/output error
|
||||
No errors were found on the image.
|
||||
read 4194304/4194304 bytes at offset 0
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
wrote 4194304/4194304 bytes at offset 4194304
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
read 4194304/4194304 bytes at offset 0
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
ERROR cluster 6 refcount=1 reference=3
|
||||
ERROR cluster 7 refcount=1 reference=2
|
||||
Repairing cluster 6 refcount=1 reference=3
|
||||
Repairing cluster 7 refcount=1 reference=2
|
||||
Repairing OFLAG_COPIED data cluster: l2_entry=8000000000c00000 refcount=3
|
||||
Repairing OFLAG_COPIED data cluster: l2_entry=8000000000e00000 refcount=2
|
||||
The following inconsistencies were found and repaired:
|
||||
|
||||
0 leaked clusters
|
||||
4 corruptions
|
||||
|
||||
Double checking the fixed image now...
|
||||
No errors were found on the image.
|
||||
read 4194304/4194304 bytes at offset 0
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
read 4194304/4194304 bytes at offset 4194304
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
*** done
|
||||
@ -212,4 +212,5 @@
|
||||
211 rw auto quick
|
||||
212 rw auto quick
|
||||
213 rw auto quick
|
||||
214 rw auto
|
||||
218 rw auto quick
|
||||
|
||||
Loading…
Reference in New Issue
Block a user