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QA output created by 024
Creating backing file

Formatting 'TEST_DIR/t.IMGFMT.base_old', fmt=IMGFMT size=1073741824
=== IO: pattern 0x11
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 131072
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 262144
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 393216
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 524288
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 655360
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 786432
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 917504
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Creating new backing file

Formatting 'TEST_DIR/t.IMGFMT.base_new', fmt=IMGFMT size=1073741824
=== IO: pattern 0x22
wrote 131072/131072 bytes at offset 0
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 131072/131072 bytes at offset 262144
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 131072/131072 bytes at offset 524288
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 131072/131072 bytes at offset 786432
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Creating COW image

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 backing_file=TEST_DIR/t.IMGFMT.base_old backing_fmt=IMGFMT
=== IO: pattern 0x33
wrote 262144/262144 bytes at offset 0
256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
wrote 262144/262144 bytes at offset 524288
256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Read before the rebase to make sure everything is set up correctly

=== IO: pattern 0x33
read 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 131072
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 196608
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 262144
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 327680
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 393216
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 458752
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 524288
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 589824
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 655360
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 720896
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 786432
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 851968
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 917504
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 983040
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Rebase and test again

=== IO: pattern 0x33
read 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 131072
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 196608
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 262144
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 327680
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 393216
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 458752
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 524288
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 589824
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 655360
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x33
read 65536/65536 bytes at offset 720896
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 786432
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 851968
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x11
read 65536/65536 bytes at offset 917504
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== IO: pattern 0x00
read 65536/65536 bytes at offset 983040
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

=== Test rebase in a subdirectory of the working directory ===

Formatting 'TEST_DIR/subdir/t.IMGFMT.base_old', fmt=IMGFMT size=1048576
Formatting 'TEST_DIR/subdir/t.IMGFMT.base_new', fmt=IMGFMT size=1048576
Formatting 'TEST_DIR/subdir/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=t.IMGFMT.base_old backing_fmt=IMGFMT

wrote 131072/131072 bytes at offset 0
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 196608
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 131072/131072 bytes at offset 65536
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 196608
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

backing file: t.IMGFMT.base_new (actual path: TEST_DIR/subdir/t.IMGFMT.base_new)

read 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 65536/65536 bytes at offset 131072
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 65536/65536 bytes at offset 196608
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Offset          Length          File
0               0x30000         TEST_DIR/subdir/t.IMGFMT
0x30000         0x10000         TEST_DIR/subdir/t.IMGFMT.base_new

=== Test rebase within one backing chain ===

Creating backing chain

Formatting 'TEST_DIR/subdir/t.IMGFMT.base_new', fmt=IMGFMT size=327680
Formatting 'TEST_DIR/subdir/t.IMGFMT.base_old', fmt=IMGFMT size=262144 backing_file=TEST_DIR/subdir/t.IMGFMT.base_new backing_fmt=IMGFMT
Formatting 'TEST_DIR/subdir/t.IMGFMT', fmt=IMGFMT size=327680 backing_file=TEST_DIR/subdir/t.IMGFMT.base_old backing_fmt=IMGFMT

Fill backing files with data

wrote 327680/327680 bytes at offset 0
320 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 262144/262144 bytes at offset 0
256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Check the last cluster is zeroed in overlay before the rebase

read 65536/65536 bytes at offset 262144
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Rebase onto another image in the same chain

Verify that data is read the same before and after rebase

read 262144/262144 bytes at offset 0
256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 65536/65536 bytes at offset 262144
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)


=== Test rebase with different cluster sizes ===

Creating backing chain

Formatting 'TEST_DIR/subdir/t.IMGFMT.base_new', fmt=IMGFMT size=393216
Formatting 'TEST_DIR/subdir/t.IMGFMT.base_old', fmt=IMGFMT size=393216 backing_file=TEST_DIR/subdir/t.IMGFMT.base_new backing_fmt=IMGFMT
Formatting 'TEST_DIR/subdir/t.IMGFMT', fmt=IMGFMT size=393216 backing_file=TEST_DIR/subdir/t.IMGFMT.base_old backing_fmt=IMGFMT
image: TEST_DIR/subdir/t.IMGFMT
file format: IMGFMT
virtual size: 384 KiB (393216 bytes)
cluster_size: 131072
backing file: TEST_DIR/subdir/t.IMGFMT.base_old
backing file format: IMGFMT

Fill backing files with data

wrote 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 262144
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Rebase onto another image in the same chain

Verify that data is read the same before and after rebase

read 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 131072/131072 bytes at offset 131072
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 65536/65536 bytes at offset 262144
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 65536/65536 bytes at offset 327680
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Verify that untouched cluster remains unallocated

Offset          Length          File
0               0x20000         TEST_DIR/subdir/t.IMGFMT
0x40000         0x20000         TEST_DIR/subdir/t.IMGFMT

*** done