Merge remote-tracking branch 'kwolf/tags/for-upstream' into staging

Block layer patches for 2.8.0-rc3

# gpg: Signature made Tue 06 Dec 2016 02:44:39 PM GMT
# gpg:                using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* kwolf/tags/for-upstream:
  qcow2: Don't strand clusters near 2G intervals during commit

Message-id: 1481037418-10239-1-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

2 files changed, 208 insertions, 82 deletions

diff --git a/tests/qemu-iotests/097 b/tests/qemu-iotests/097
index 01d8dd0331..4c33e8038a 100755
--- a/tests/qemu-iotests/097
+++ b/tests/qemu-iotests/097
@@ -46,7 +46,7 @@ _supported_proto file
 _supported_os Linux
 
 
-# Four passes:
+# Four main passes:
 #  0: Two-layer backing chain, commit to upper backing file (implicitly)
 #     (in this case, the top image will be emptied)
 #  1: Two-layer backing chain, commit to upper backing file (explicitly)
@@ -56,22 +56,30 @@ _supported_os Linux
 #  3: Two-layer backing chain, commit to lower backing file
 #     (in this case, the top image will implicitly stay unchanged)
 #
+# Each pass is run twice, since qcow2 has different code paths for cleaning
+# an image depending on whether it has a snapshot.
+#
 # 020 already tests committing, so this only tests whether image chains are
 # working properly and that all images above the base are emptied; therefore,
-# no complicated patterns are necessary
+# no complicated patterns are necessary.  Check near the 2G mark, as qcow2
+# has been buggy at that boundary in the past.
 for i in 0 1 2 3; do
+for j in 0 1; do
 
 echo
-echo "=== Test pass $i ==="
+echo "=== Test pass $i.$j ==="
 echo
 
-TEST_IMG="$TEST_IMG.base" _make_test_img 64M
-TEST_IMG="$TEST_IMG.itmd" _make_test_img -b "$TEST_IMG.base" 64M
-_make_test_img -b "$TEST_IMG.itmd" 64M
+TEST_IMG="$TEST_IMG.base" _make_test_img 2100M
+TEST_IMG="$TEST_IMG.itmd" _make_test_img -b "$TEST_IMG.base" 2100M
+_make_test_img -b "$TEST_IMG.itmd" 2100M
+if [ $j -eq 0 ]; then
+    $QEMU_IMG snapshot -c snap "$TEST_IMG"
+fi
 
-$QEMU_IO -c 'write -P 1 0 192k' "$TEST_IMG.base" | _filter_qemu_io
-$QEMU_IO -c 'write -P 2 64k 128k' "$TEST_IMG.itmd" | _filter_qemu_io
-$QEMU_IO -c 'write -P 3 128k 64k' "$TEST_IMG" | _filter_qemu_io
+$QEMU_IO -c 'write -P 1 0x7ffd0000 192k' "$TEST_IMG.base" | _filter_qemu_io
+$QEMU_IO -c 'write -P 2 0x7ffe0000 128k' "$TEST_IMG.itmd" | _filter_qemu_io
+$QEMU_IO -c 'write -P 3 0x7fff0000 64k' "$TEST_IMG" | _filter_qemu_io
 
 if [ $i -lt 3 ]; then
     if [ $i == 0 ]; then
@@ -88,12 +96,12 @@ if [ $i -lt 3 ]; then
     fi
 
     # Bottom should be unchanged
-    $QEMU_IO -c 'read -P 1 0 192k' "$TEST_IMG.base" | _filter_qemu_io
+    $QEMU_IO -c 'read -P 1 0x7ffd0000 192k' "$TEST_IMG.base" | _filter_qemu_io
 
     # Intermediate should contain changes from top
-    $QEMU_IO -c 'read -P 1 0 64k' "$TEST_IMG.itmd" | _filter_qemu_io
-    $QEMU_IO -c 'read -P 2 64k 64k' "$TEST_IMG.itmd" | _filter_qemu_io
-    $QEMU_IO -c 'read -P 3 128k 64k' "$TEST_IMG.itmd" | _filter_qemu_io
+    $QEMU_IO -c 'read -P 1 0x7ffd0000 64k' "$TEST_IMG.itmd" | _filter_qemu_io
+    $QEMU_IO -c 'read -P 2 0x7ffe0000 64k' "$TEST_IMG.itmd" | _filter_qemu_io
+    $QEMU_IO -c 'read -P 3 0x7fff0000 64k' "$TEST_IMG.itmd" | _filter_qemu_io
 
     # And in pass 0, the top image should be empty, whereas in both other passes
     # it should be unchanged (which is both checked by qemu-img map)
@@ -101,9 +109,9 @@ else
     $QEMU_IMG commit -b "$TEST_IMG.base" "$TEST_IMG"
 
     # Bottom should contain all changes
-    $QEMU_IO -c 'read -P 1 0 64k' "$TEST_IMG.base" | _filter_qemu_io
-    $QEMU_IO -c 'read -P 2 64k 64k' "$TEST_IMG.base" | _filter_qemu_io
-    $QEMU_IO -c 'read -P 3 128k 64k' "$TEST_IMG.base" | _filter_qemu_io
+    $QEMU_IO -c 'read -P 1 0x7ffd0000 64k' "$TEST_IMG.base" | _filter_qemu_io
+    $QEMU_IO -c 'read -P 2 0x7ffe0000 64k' "$TEST_IMG.base" | _filter_qemu_io
+    $QEMU_IO -c 'read -P 3 0x7fff0000 64k' "$TEST_IMG.base" | _filter_qemu_io
 
     # Both top and intermediate should be unchanged
 fi
@@ -113,6 +121,7 @@ $QEMU_IMG map "$TEST_IMG.itmd" | _filter_qemu_img_map
 $QEMU_IMG map "$TEST_IMG" | _filter_qemu_img_map
 
 done
+done
 
 
 # success, all done
diff --git a/tests/qemu-iotests/097.out b/tests/qemu-iotests/097.out
index 48abd2e64e..8106cc9275 100644
--- a/tests/qemu-iotests/097.out
+++ b/tests/qemu-iotests/097.out
@@ -1,119 +1,236 @@
 QA output created by 097
 
-=== Test pass 0 ===
+=== Test pass 0.0 ===
 
-Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
-Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.itmd
-wrote 196608/196608 bytes at offset 0
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
 192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 131072/131072 bytes at offset 65536
+wrote 131072/131072 bytes at offset 2147352576
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes at offset 131072
+wrote 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Image committed.
-read 196608/196608 bytes at offset 0
+read 196608/196608 bytes at offset 2147287040
 192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 0
+read 65536/65536 bytes at offset 2147287040
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 65536
+read 65536/65536 bytes at offset 2147352576
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 131072
+read 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Offset          Length          File
-0               0x30000         TEST_DIR/t.IMGFMT.base
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x20000         TEST_DIR/t.IMGFMT.itmd
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x20000         TEST_DIR/t.IMGFMT.itmd
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
 
-=== Test pass 1 ===
+=== Test pass 0.1 ===
 
-Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
-Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.itmd
-wrote 196608/196608 bytes at offset 0
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
 192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 131072/131072 bytes at offset 65536
+wrote 131072/131072 bytes at offset 2147352576
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes at offset 131072
+wrote 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Image committed.
-read 196608/196608 bytes at offset 0
+read 196608/196608 bytes at offset 2147287040
 192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 0
+read 65536/65536 bytes at offset 2147287040
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 65536
+read 65536/65536 bytes at offset 2147352576
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 131072
+read 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Offset          Length          File
-0               0x30000         TEST_DIR/t.IMGFMT.base
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x20000         TEST_DIR/t.IMGFMT.itmd
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x10000         TEST_DIR/t.IMGFMT.itmd
-0x20000         0x10000         TEST_DIR/t.IMGFMT
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
 
-=== Test pass 2 ===
+=== Test pass 1.0 ===
 
-Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
-Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.itmd
-wrote 196608/196608 bytes at offset 0
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
 192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 131072/131072 bytes at offset 65536
+wrote 131072/131072 bytes at offset 2147352576
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes at offset 131072
+wrote 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Image committed.
-read 196608/196608 bytes at offset 0
+read 196608/196608 bytes at offset 2147287040
 192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 0
+read 65536/65536 bytes at offset 2147287040
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 65536
+read 65536/65536 bytes at offset 2147352576
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 131072
+read 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Offset          Length          File
-0               0x30000         TEST_DIR/t.IMGFMT.base
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x20000         TEST_DIR/t.IMGFMT.itmd
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x10000         TEST_DIR/t.IMGFMT.itmd
-0x20000         0x10000         TEST_DIR/t.IMGFMT
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x10000         TEST_DIR/t.IMGFMT.itmd
+0x7fff0000      0x10000         TEST_DIR/t.IMGFMT
 
-=== Test pass 3 ===
+=== Test pass 1.1 ===
 
-Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
-Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.itmd
-wrote 196608/196608 bytes at offset 0
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
 192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 131072/131072 bytes at offset 65536
+wrote 131072/131072 bytes at offset 2147352576
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes at offset 131072
+wrote 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Image committed.
-read 65536/65536 bytes at offset 0
+read 196608/196608 bytes at offset 2147287040
+192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147287040
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147352576
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Offset          Length          File
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x10000         TEST_DIR/t.IMGFMT.itmd
+0x7fff0000      0x10000         TEST_DIR/t.IMGFMT
+
+=== Test pass 2.0 ===
+
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
+192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 131072/131072 bytes at offset 2147352576
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Image committed.
+read 196608/196608 bytes at offset 2147287040
+192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147287040
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147352576
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Offset          Length          File
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x10000         TEST_DIR/t.IMGFMT.itmd
+0x7fff0000      0x10000         TEST_DIR/t.IMGFMT
+
+=== Test pass 2.1 ===
+
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
+192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 131072/131072 bytes at offset 2147352576
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Image committed.
+read 196608/196608 bytes at offset 2147287040
+192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147287040
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147352576
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Offset          Length          File
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x10000         TEST_DIR/t.IMGFMT.itmd
+0x7fff0000      0x10000         TEST_DIR/t.IMGFMT
+
+=== Test pass 3.0 ===
+
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
+192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 131072/131072 bytes at offset 2147352576
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Image committed.
+read 65536/65536 bytes at offset 2147287040
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147352576
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Offset          Length          File
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
+Offset          Length          File
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x10000         TEST_DIR/t.IMGFMT.itmd
+0x7fff0000      0x10000         TEST_DIR/t.IMGFMT
+
+=== Test pass 3.1 ===
+
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=2202009600
+Formatting 'TEST_DIR/t.IMGFMT.itmd', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2202009600 backing_file=TEST_DIR/t.IMGFMT.itmd
+wrote 196608/196608 bytes at offset 2147287040
+192 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 131072/131072 bytes at offset 2147352576
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 65536/65536 bytes at offset 2147418112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Image committed.
+read 65536/65536 bytes at offset 2147287040
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 65536
+read 65536/65536 bytes at offset 2147352576
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-read 65536/65536 bytes at offset 131072
+read 65536/65536 bytes at offset 2147418112
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 Offset          Length          File
-0               0x30000         TEST_DIR/t.IMGFMT.base
+0x7ffd0000      0x30000         TEST_DIR/t.IMGFMT.base
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x20000         TEST_DIR/t.IMGFMT.itmd
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x20000         TEST_DIR/t.IMGFMT.itmd
 Offset          Length          File
-0               0x10000         TEST_DIR/t.IMGFMT.base
-0x10000         0x10000         TEST_DIR/t.IMGFMT.itmd
-0x20000         0x10000         TEST_DIR/t.IMGFMT
+0x7ffd0000      0x10000         TEST_DIR/t.IMGFMT.base
+0x7ffe0000      0x10000         TEST_DIR/t.IMGFMT.itmd
+0x7fff0000      0x10000         TEST_DIR/t.IMGFMT
 *** done