qemu/tests/qemu-iotests/109
Fam Zheng 24dfdfd0ff iotests: 109: Filter out "len" of failed jobs
Mirror calculates job len from current I/O progress:

    s->common.len = s->common.offset +
                    (cnt + s->sectors_in_flight) * BDRV_SECTOR_SIZE;

The final "len" of a failed mirror job in iotests 109 depends on the
subtle timing of the completion of read and write issued in the first
mirror iteration.  The second iteration may or may not have run when the
I/O error happens, resulting in non-deterministic output of the
BLOCK_JOB_COMPLETED event text.

Similar to what was done in a752e4786, filter out the field to make the
test robust.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-04-27 16:01:11 +02:00

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#!/bin/bash
#
# Test writing image headers of other formats into raw images
#
# Copyright (C) 2014 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/>.
#
# creator
owner=kwolf@redhat.com
seq="$(basename $0)"
echo "QA output created by $seq"
here="$PWD"
status=1 # failure is the default!
_cleanup()
{
_cleanup_qemu
rm -f $TEST_IMG.src
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.qemu
_supported_fmt raw
_supported_proto file
_supported_os Linux
qemu_comm_method=qmp
function run_qemu()
{
local raw_img="$1"
local source_img="$2"
local qmp_format="$3"
local qmp_event="$4"
_launch_qemu -drive file="${source_img}",format=raw,cache=${CACHEMODE},id=src
_send_qemu_cmd $QEMU_HANDLE "{ 'execute': 'qmp_capabilities' }" "return"
_send_qemu_cmd $QEMU_HANDLE \
"{'execute':'drive-mirror', 'arguments':{
'device': 'src', 'target': '$raw_img', $qmp_format
'mode': 'existing', 'sync': 'full'}}" \
"return"
_send_qemu_cmd $QEMU_HANDLE '' "$qmp_event"
if test "$qmp_event" = BLOCK_JOB_ERROR; then
_send_qemu_cmd $QEMU_HANDLE '' "BLOCK_JOB_COMPLETED"
fi
_send_qemu_cmd $QEMU_HANDLE '{"execute":"query-block-jobs"}' "return"
_cleanup_qemu
}
for fmt in qcow qcow2 qed vdi vmdk vpc; do
echo
echo "=== Writing a $fmt header into raw ==="
echo
_make_test_img 64M
TEST_IMG="$TEST_IMG.src" IMGFMT=$fmt _make_test_img 64M
# This first test should fail: The image format was probed, we may not
# write an image header at the start of the image
run_qemu "$TEST_IMG" "$TEST_IMG.src" "" "BLOCK_JOB_ERROR" |
_filter_block_job_len
$QEMU_IO -c 'read -P 0 0 64k' "$TEST_IMG" | _filter_qemu_io
# When raw was explicitly specified, the same must succeed
run_qemu "$TEST_IMG" "$TEST_IMG.src" "'format': 'raw'," "BLOCK_JOB_READY"
$QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
done
for sample_img in empty.bochs iotest-dirtylog-10G-4M.vhdx parallels-v1 \
simple-pattern.cloop; do
echo
echo "=== Copying sample image $sample_img into raw ==="
echo
# Can't use _use_sample_img because that isn't designed to be used multiple
# times and it overwrites $TEST_IMG (both breaks cleanup)
_make_test_img 64M
bzcat "$SAMPLE_IMG_DIR/$sample_img.bz2" > "$TEST_IMG.src"
run_qemu "$TEST_IMG" "$TEST_IMG.src" "" "BLOCK_JOB_ERROR" |
_filter_block_job_offset | _filter_block_job_len
$QEMU_IO -c 'read -P 0 0 64k' "$TEST_IMG" | _filter_qemu_io
run_qemu "$TEST_IMG" "$TEST_IMG.src" "'format': 'raw'," "BLOCK_JOB_READY"
$QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
done
echo
echo "=== Write legitimate MBR into raw ==="
echo
for sample_img in grub_mbr.raw; do
_make_test_img 64M
bzcat "$SAMPLE_IMG_DIR/$sample_img.bz2" > "$TEST_IMG.src"
run_qemu "$TEST_IMG" "$TEST_IMG.src" "" "BLOCK_JOB_READY"
$QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
run_qemu "$TEST_IMG" "$TEST_IMG.src" "'format': 'raw'," "BLOCK_JOB_READY"
$QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
done
# success, all done
echo '*** done'
rm -f $seq.full
status=0