mirror of
https://github.com/qemu/qemu.git
synced 2024-11-30 23:33:51 +08:00
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 > $file;
done
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
85 lines
2.7 KiB
Bash
Executable File
85 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# group: rw backing quick
|
|
#
|
|
# Test large write to a qcow2 image
|
|
#
|
|
# Copyright (C) 2019 Red Hat, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
seq=$(basename "$0")
|
|
echo "QA output created by $seq"
|
|
|
|
status=1 # failure is the default!
|
|
|
|
_cleanup()
|
|
{
|
|
_cleanup_test_img
|
|
}
|
|
trap "_cleanup; exit \$status" 0 1 2 3 15
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common.rc
|
|
. ./common.filter
|
|
|
|
# This is a qcow2 regression test
|
|
_supported_fmt qcow2
|
|
_supported_proto file
|
|
_supported_os Linux
|
|
|
|
# We use our own external data file and our own cluster size, and we
|
|
# require v3 images
|
|
_unsupported_imgopts data_file cluster_size 'compat=0.10'
|
|
|
|
|
|
# We need a backing file so that handle_alloc_space() will not do
|
|
# anything. (If it were to do anything, it would simply fail its
|
|
# write-zeroes request because the request range is too large.)
|
|
TEST_IMG="$TEST_IMG.base" _make_test_img 4G
|
|
$QEMU_IO -c 'write 0 512' "$TEST_IMG.base" | _filter_qemu_io
|
|
|
|
# (Use .orig because _cleanup_test_img will remove that file)
|
|
# We need a large cluster size, see below for why (above the $QEMU_IO
|
|
# invocation)
|
|
_make_test_img -o cluster_size=2M,data_file="$TEST_IMG.orig" \
|
|
-b "$TEST_IMG.base" -F $IMGFMT 4G
|
|
|
|
# We want a null-co as the data file, because it allows us to quickly
|
|
# "write" 2G of data without using any space.
|
|
# (qemu-img create does not like it, though, because null-co does not
|
|
# support image creation.)
|
|
$QEMU_IMG amend -o data_file="json:{'driver':'null-co',,'size':'4294967296'}" \
|
|
"$TEST_IMG"
|
|
|
|
# This gives us a range of:
|
|
# 2^31 - 512 + 768 - 1 = 2^31 + 255 > 2^31
|
|
# until the beginning of the end COW block. (The total allocation
|
|
# size depends on the cluster size, but all that is important is that
|
|
# it exceeds INT_MAX.)
|
|
#
|
|
# 2^31 - 512 is the maximum request size. We want this to result in a
|
|
# single allocation, and because the qcow2 driver splits allocations
|
|
# on L2 boundaries, we need large L2 tables; hence the cluster size of
|
|
# 2 MB. (Anything from 256 kB should work, though, because then one L2
|
|
# table covers 8 GB.)
|
|
$QEMU_IO -c "write 768 $((2 ** 31 - 512))" "$TEST_IMG" | _filter_qemu_io
|
|
|
|
_check_test_img
|
|
|
|
# success, all done
|
|
echo "*** done"
|
|
rm -f $seq.full
|
|
status=0
|