ae6ef01909
This exercises the regression introduced in commit
50ba5b2d99. On my machine, it has close
to a 50 % false-negative rate, but that should still be sufficient to
test the fix.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
68 lines
1.7 KiB
Bash
Executable File
68 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Test reverse-ordered qcow2 writes on a sub-cluster level
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#
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# Copyright (C) 2019 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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seq=$(basename $0)
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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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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# qcow2-specific test
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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echo '--- Writing to the image ---'
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# Reduce cluster size so we get more and quicker I/O
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IMGOPTS='cluster_size=4096' _make_test_img 1M
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(for ((kb = 1024 - 4; kb >= 0; kb -= 4)); do \
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echo "aio_write -P 42 $((kb + 1))k 2k"; \
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done) \
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| $QEMU_IO "$TEST_IMG" > /dev/null
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echo '--- Verifying its content ---'
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(for ((kb = 0; kb < 1024; kb += 4)); do \
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echo "read -P 0 ${kb}k 1k"; \
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echo "read -P 42 $((kb + 1))k 2k"; \
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echo "read -P 0 $((kb + 3))k 1k"; \
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done) \
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| $QEMU_IO "$TEST_IMG" | _filter_qemu_io | grep 'verification'
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# Status of qemu-io
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if [ ${PIPESTATUS[1]} = 0 ]; then
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echo 'Content verified.'
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fi
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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
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