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-rwxr-xr-xtests/qemu-iotests/tests/parallels-checks15
-rw-r--r--tests/qemu-iotests/tests/parallels-checks.out10
2 files changed, 25 insertions, 0 deletions
diff --git a/tests/qemu-iotests/tests/parallels-checks b/tests/qemu-iotests/tests/parallels-checks
index 8a63c3d..a7a1b35 100755
--- a/tests/qemu-iotests/tests/parallels-checks
+++ b/tests/qemu-iotests/tests/parallels-checks
@@ -44,6 +44,7 @@ _supported_os Linux
SIZE=$((4 * 1024 * 1024))
IMGFMT=parallels
CLUSTER_SIZE_OFFSET=28
+DATA_OFF_OFFSET=48
BAT_OFFSET=64
_make_test_img $SIZE
@@ -124,6 +125,20 @@ printf "content: 0x%02x\n" `peek_file_le $TEST_IMG $(($CLUSTER_SIZE)) 1`
echo "== check second cluster on host =="
printf "content: 0x%02x\n" `peek_file_le $TEST_IMG $(($CLUSTER_SIZE)) 1`
+# Clear image
+_make_test_img $SIZE
+
+echo "== TEST DATA_OFF CHECK =="
+
+echo "== write pattern to first cluster =="
+{ $QEMU_IO -c "write -P 0x55 0 $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
+
+echo "== spoil data_off field =="
+poke_file "$TEST_IMG" "$DATA_OFF_OFFSET" "\xff\xff\xff\xff"
+
+echo "== check first cluster =="
+{ $QEMU_IO -c "read -P 0x55 0 $CLUSTER_SIZE" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
+
# success, all done
echo "*** done"
rm -f $seq.full
diff --git a/tests/qemu-iotests/tests/parallels-checks.out b/tests/qemu-iotests/tests/parallels-checks.out
index b747bba..98a3a7f 100644
--- a/tests/qemu-iotests/tests/parallels-checks.out
+++ b/tests/qemu-iotests/tests/parallels-checks.out
@@ -62,4 +62,14 @@ read 1048576/1048576 bytes at offset 1048576
content: 0x11
== check second cluster on host ==
content: 0x11
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=4194304
+== TEST DATA_OFF CHECK ==
+== write pattern to first cluster ==
+wrote 1048576/1048576 bytes at offset 0
+1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+== spoil data_off field ==
+== check first cluster ==
+Repairing data_off field has incorrect value
+read 1048576/1048576 bytes at offset 0
+1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
*** done