jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
iotests/026: Move v3-exclusive test to new file
data_file does not work with v2, and we probably want 026 to keep
working for v2 images. Thus, open a new file for v3-exclusive error
path test cases.
Fixes: 81311255f217859413c94f2cd9cebf2684bbda94
(“iotests/026: Test EIO on allocation in a data-file”)
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200311140707.1243218-1-mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
+98
-43
-31
tests/qemu-iotests/026
-31
tests/qemu-iotests/026
···
240
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_check_test_img
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-
echo
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echo === Avoid freeing external data clusters on failure ===
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echo
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-
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# Similar test as the last one, except we test what happens when there
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# is an error when writing to an external data file instead of when
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# writing to a preallocated zero cluster
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_make_test_img -o "data_file=$TEST_IMG.data_file" $CLUSTER_SIZE
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-
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# Put blkdebug above the data-file, and a raw node on top of that so
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# that blkdebug will see a write_aio event and emit an error
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$QEMU_IO -c "write 0 $CLUSTER_SIZE" \
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"json:{
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'driver': 'qcow2',
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'file': { 'driver': 'file', 'filename': '$TEST_IMG' },
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'data-file': {
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'driver': 'raw',
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'file': {
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'driver': 'blkdebug',
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'config': '$TEST_DIR/blkdebug.conf',
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'image': {
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'driver': 'file',
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'filename': '$TEST_IMG.data_file'
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}
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}
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}
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}" \
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| _filter_qemu_io
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-
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_check_test_img
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-
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243
# success, all done
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echo "*** done"
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245
rm -f $seq.full
-6
tests/qemu-iotests/026.out
-6
tests/qemu-iotests/026.out
···
653
653
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
654
654
write failed: Input/output error
655
655
No errors were found on the image.
656
-
657
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=== Avoid freeing external data clusters on failure ===
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-
659
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1024 data_file=TEST_DIR/t.IMGFMT.data_file
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write failed: Input/output error
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No errors were found on the image.
662
656
*** done
-6
tests/qemu-iotests/026.out.nocache
-6
tests/qemu-iotests/026.out.nocache
···
661
661
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
662
662
write failed: Input/output error
663
663
No errors were found on the image.
664
-
665
-
=== Avoid freeing external data clusters on failure ===
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-
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1024 data_file=TEST_DIR/t.IMGFMT.data_file
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write failed: Input/output error
669
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No errors were found on the image.
670
664
*** done
+89
tests/qemu-iotests/289
+89
tests/qemu-iotests/289
···
1
+
#!/usr/bin/env bash
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#
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# qcow2 v3-exclusive error path testing
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# (026 tests paths common to v2 and v3)
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#
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# Copyright (C) 2020 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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+
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seq=$(basename $0)
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echo "QA output created by $seq"
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+
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status=1 # failure is the default!
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+
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_cleanup()
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{
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_cleanup_test_img
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rm "$TEST_DIR/blkdebug.conf"
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rm -f "$TEST_IMG.data_file"
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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+
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.pattern
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+
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_supported_fmt qcow2
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_supported_proto file
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# This is a v3-exclusive test;
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# As for data_file, error paths often very much depend on whether
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# there is an external data file or not; so we create one exactly when
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# we want to test it
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_unsupported_imgopts 'compat=0.10' data_file
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echo
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echo === Avoid freeing external data clusters on failure ===
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echo
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+
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cat > "$TEST_DIR/blkdebug.conf" <<EOF
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[inject-error]
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event = "write_aio"
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errno = "5"
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once = "on"
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EOF
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+
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# Test what happens when there is an error when writing to an external
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# data file instead of when writing to a preallocated zero cluster
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_make_test_img -o "data_file=$TEST_IMG.data_file" 64k
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+
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# Put blkdebug above the data-file, and a raw node on top of that so
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# that blkdebug will see a write_aio event and emit an error. This
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# will then trigger the alloc abort code, which we want to test here.
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$QEMU_IO -c "write 0 64k" \
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"json:{
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'driver': 'qcow2',
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'file': { 'driver': 'file', 'filename': '$TEST_IMG' },
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'data-file': {
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'driver': 'raw',
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'file': {
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'driver': 'blkdebug',
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'config': '$TEST_DIR/blkdebug.conf',
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'image': {
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'driver': 'file',
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'filename': '$TEST_IMG.data_file'
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}
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}
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}
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}" \
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| _filter_qemu_io
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+
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_check_test_img
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+
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
+8
tests/qemu-iotests/289.out
+8
tests/qemu-iotests/289.out