This patch contains test which minimally tests write-zeroes on top of working discard. The following checks are added: * write 2 clusters, write-zero to the first allocated cluster * write 2 cluster, write-zero to the half the first allocated cluster Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
		
			
				
	
	
		
			166 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			166 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
| #!/usr/bin/env bash
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| # group: rw quick
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| #
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| # parallels format validation tests (created by QEMU)
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| #
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| # Copyright (C) 2014 Denis V. Lunev <den@openvz.org>
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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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| # creator
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| owner=den@openvz.org
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| 
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| seq=`basename $0`
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| echo "QA output created by $seq"
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| 
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| status=1	# failure is the default!
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| 
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| _cleanup()
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| {
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|     _cleanup_test_img
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| }
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| trap "_cleanup; exit \$status" 0 1 2 3 15
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| 
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| # get standard environment, filters and checks
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| . ./common.rc
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| . ./common.filter
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| 
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| _supported_fmt parallels
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| _supported_proto file
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| _supported_os Linux
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| 
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| inuse_offset=$((0x2c))
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| 
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| size=$((64 * 1024 * 1024))
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| IMGFMT=parallels
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| _make_test_img $size
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| 
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| # get cluster size in sectors from "tracks" header field
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| CLUSTER_SIZE_OFFSET=28
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| CLUSTER_SIZE=$(peek_file_le $TEST_IMG $CLUSTER_SIZE_OFFSET 4)
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| CLUSTER_SIZE=$((CLUSTER_SIZE * 512))
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| CLUSTER_HALF_SIZE=$((CLUSTER_SIZE / 2))
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| CLUSTER_DBL_SIZE=$((CLUSTER_SIZE * 2))
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| 
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| echo == read empty image ==
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| { $QEMU_IO -c "read -P 0 $CLUSTER_HALF_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| echo == write more than 1 block in a row ==
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| { $QEMU_IO -c "write -P 0x11 $CLUSTER_HALF_SIZE $CLUSTER_DBL_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| echo == read less than block ==
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| { $QEMU_IO -c "read -P 0x11 $CLUSTER_HALF_SIZE $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| echo == read exactly 1 block ==
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| { $QEMU_IO -c "read -P 0x11 $CLUSTER_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| echo == read more than 1 block ==
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| { $QEMU_IO -c "read -P 0x11 $CLUSTER_HALF_SIZE $CLUSTER_DBL_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| echo == check that there is no trash after written ==
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| { $QEMU_IO -c "read -P 0 $((CLUSTER_HALF_SIZE + CLUSTER_DBL_SIZE)) $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| echo == check that there is no trash before written ==
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| { $QEMU_IO -c "read -P 0 0 $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| 
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| echo "== corrupt image =="
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| poke_file "$TEST_IMG" "$inuse_offset" "\x59\x6e\x6f\x74"
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| echo "== read corrupted image with repairing =="
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| { $QEMU_IO -c "read -P 0x11 $CLUSTER_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| 
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| echo "== check discard =="
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| 
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| # Clear image
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| _make_test_img $size
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| 
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| { $QEMU_IO -c "write -P 0x11 0 $CLUSTER_DBL_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IMG map "$TEST_IMG"; } 2>&1 | _filter_qemu_img_map
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| { $QEMU_IO -c "discard 0 $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IMG map "$TEST_IMG"; } 2>&1 | _filter_qemu_img_map
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| { $QEMU_IO -c "read -P 0 0 $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| 
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| echo "== check simple allocation over the discarded hole =="
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| 
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| { $QEMU_IO -c "write -P 0x11 $CLUSTER_DBL_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IMG map "$TEST_IMG"; } 2>&1 | _filter_qemu_img_map
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| { $QEMU_IO -c "read -P 0x11 $CLUSTER_DBL_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| 
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| echo "== check more complex allocation over the discard hole =="
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| 
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| # Clear image
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| _make_test_img $size
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| 
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| { $QEMU_IO -c "write -P 0x11 $CLUSTER_DBL_SIZE $CLUSTER_DBL_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "discard $CLUSTER_DBL_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| # There is 1 cluster hole. Fill it fully and allocate 1 cluster at the end
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| { $QEMU_IO -c "write -P 0x12 $CLUSTER_HALF_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IMG map "$TEST_IMG"; } 2>&1 | _filter_qemu_img_map
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| { $QEMU_IO -c "read -P 0x12 $CLUSTER_HALF_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "read -P 0 0 $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "read -P 0 $((CLUSTER_SIZE + CLUSTER_HALF_SIZE)) $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| 
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| echo "== check write-zeroes =="
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| 
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| # Clear image
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| _make_test_img $size
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| 
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| { $QEMU_IO -c "write -P 0x11 0 $CLUSTER_DBL_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "write -z 0 $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IMG map "$TEST_IMG"; } 2>&1 | _filter_qemu_img_map
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| { $QEMU_IO -c "read -P 0 0 $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "read -P 0x11 $CLUSTER_SIZE $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| 
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| echo "== check cluster-partial write-zeroes =="
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| 
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| # Clear image
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| _make_test_img $size
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| 
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| { $QEMU_IO -c "write -P 0x11 0 $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "write -z 0 $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "read -P 0 0 $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| { $QEMU_IO -c "read -P 0x11 $CLUSTER_HALF_SIZE $CLUSTER_HALF_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
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| 
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| echo "== allocate with backing =="
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| # Verify that allocating clusters works fine even when there is a backing image.
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| # Regression test for a bug where we would pass a buffer read from the backing
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| # node as a QEMUIOVector object, which could cause anything from I/O errors over
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| # assertion failures to invalid reads from memory.
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| 
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| # Clear image
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| _make_test_img $size
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| # Create base image
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| TEST_IMG="$TEST_IMG.base" _make_test_img $size
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| 
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| # Write some data to the base image (which would trigger an assertion failure if
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| # interpreted as a QEMUIOVector)
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| $QEMU_IO -c "write -P 42 0 $CLUSTER_SIZE" "$TEST_IMG.base" | _filter_qemu_io
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| 
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| # Parallels does not seem to support storing a backing filename in the image
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| # itself, so we need to build our backing chain on the command line
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| imgopts="driver=$IMGFMT,file.driver=$IMGPROTO,file.filename=$TEST_IMG"
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| imgopts+=",backing.driver=$IMGFMT"
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| imgopts+=",backing.file.driver=$IMGPROTO,backing.file.filename=$TEST_IMG.base"
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| 
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| # Cause allocation in the top image
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| QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
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|     $QEMU_IO --image-opts "$imgopts" -c 'write -P 1 0 64' | _filter_qemu_io
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| 
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| # Verify
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| QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
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|     $QEMU_IO --image-opts "$imgopts" \
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|     -c 'read -P 1 0 64' \
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|     -c "read -P 42 64 $((CLUSTER_SIZE - 64))" \
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|     -c "read -P 0 $CLUSTER_SIZE $((size - CLUSTER_SIZE))" \
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|     | _filter_qemu_io
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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
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