57284d2ada
Many tests (that do not support generic protocols) can run just fine with FUSE-exported images, so allow them to. Note that this is no attempt at being definitely complete. There are some tests that might be modified to run on FUSE, but this patch still skips them. This patch only tries to pick the rather low-hanging fruits. Note that 221 and 250 only pass when .lseek is correctly implemented, which is only possible with a libfuse that is 3.8 or newer. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201027190600.192171-20-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
80 lines
2.4 KiB
Bash
Executable file
80 lines
2.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# Test compressed write to a qcow2 image at an offset above 4 GB
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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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# This is a qcow2 regression test
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_supported_fmt qcow2
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_supported_proto file fuse
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# External data files do not support compression;
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# We need an exact cluster size (2M) and refcount width (2) so we can
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# get this test quickly over with; and this in turn require
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# compat=1.1
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_unsupported_imgopts data_file cluster_size refcount_bits 'compat=0.10'
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# The idea is: Create an empty file, mark the first 4 GB as used, then
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# do a compressed write that thus must be put beyond 4 GB.
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# (This used to fail because the compressed sector mask was just a
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# 32 bit mask, so qemu-img check will count a cluster before 4 GB as
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# referenced twice.)
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# We would like to use refcount_bits=1 here, but then qemu-img check
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# will throw an error when trying to count a cluster as referenced
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# twice.
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_make_test_img -o cluster_size=2M,refcount_bits=2 64M
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reft_offs=$(peek_file_be "$TEST_IMG" 48 8)
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refb_offs=$(peek_file_be "$TEST_IMG" $reft_offs 8)
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# We want to cover 4 GB, those are 2048 clusters, equivalent to
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# 4096 bit = 512 B.
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truncate -s 4G "$TEST_IMG"
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for ((in_refb_offs = 0; in_refb_offs < 512; in_refb_offs += 8)); do
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poke_file "$TEST_IMG" $((refb_offs + in_refb_offs)) \
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'\x55\x55\x55\x55\x55\x55\x55\x55'
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done
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$QEMU_IO -c 'write -c -P 42 0 2M' "$TEST_IMG" | _filter_qemu_io
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echo
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echo '--- Check ---'
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# This should only print the leaked clusters in the first 4 GB
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_check_test_img | grep -v '^Leaked cluster '
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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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