mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-11-02 20:37:48 +00:00
9dd003a998
We are going to drop group file. Define group in tests as a preparatory
step.
The patch is generated by
cd tests/qemu-iotests
grep '^[0-9]\{3\} ' group | while read line; do
file=$(awk '{print $1}' <<< "$line");
groups=$(sed -e 's/^... //' <<< "$line");
awk "NR==2{print \"# group: $groups\"}1" $file > tmp;
cat tmp > $file;
done
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
98 lines
3.3 KiB
Bash
Executable file
98 lines
3.3 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
# group: rw auto
|
|
#
|
|
# max limits on compression in huge qcow2 files
|
|
#
|
|
# Copyright (C) 2018 Red Hat, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
seq=$(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 fuse
|
|
_supported_os Linux
|
|
# To use a different refcount width but 16 bits we need compat=1.1,
|
|
# and external data files do not support compressed clusters.
|
|
_unsupported_imgopts 'compat=0.10' data_file
|
|
|
|
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.
|
|
_require_large_file 513T
|
|
|
|
_make_test_img -o 'cluster_size=2M,refcount_bits=1' 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
|