2 files changed, 124 insertions, 1 deletions
diff --git a/tests/qemu-iotests/046 b/tests/qemu-iotests/046
index e0176f42df..987bfff8fa 100755
--- a/tests/qemu-iotests/046
+++ b/tests/qemu-iotests/046
@@ -66,7 +66,7 @@ function backing_io()
     done
 }
 
-backing_io 0 16 write | $QEMU_IO $TEST_IMG | _filter_qemu_io
+backing_io 0 32 write | $QEMU_IO $TEST_IMG | _filter_qemu_io
 
 mv $TEST_IMG $TEST_IMG.base
 
@@ -153,6 +153,36 @@ aio_write -P 101 0xaa000 0xe000
 resume A
 aio_flush
 EOF
+
+# Reverse sequential write
+cat  <<EOF
+break write_aio A
+aio_write -P 121 0xdc000 0x2000
+wait_break A
+aio_write -P 120 0xc4000 0x18000
+resume A
+aio_flush
+EOF
+
+# Reverse sequential write with a gap
+cat  <<EOF
+break write_aio A
+aio_write -P 141 0xfc000 0x2000
+wait_break A
+aio_write -P 140 0xe4000 0x14000
+resume A
+aio_flush
+EOF
+
+# Allocate an area in the middle and then overwrite with a larger request
+cat  <<EOF
+break write_aio A
+aio_write -P 161 0x10c000 0x8000
+wait_break A
+aio_write -P 160 0x104000 0x18000
+resume A
+aio_flush
+EOF
 }
 
 overlay_io | $QEMU_IO blkdebug::$TEST_IMG | _filter_qemu_io |\
@@ -203,6 +233,23 @@ function verify_io()
     echo read -P 10  0xa8000 0x2000
     echo read -P 101 0xaa000 0xe000
     echo read -P 110 0xb8000 0x8000
+
+    echo read -P 12  0xc0000 0x4000
+    echo read -P 120 0xc4000 0x18000
+    echo read -P 121 0xdc000 0x2000
+    echo read -P 13  0xde000 0x2000
+
+    echo read -P 14  0xe0000 0x4000
+    echo read -P 140 0xe4000 0x14000
+    echo read -P 15  0xf8000 0x4000
+    echo read -P 141 0xfc000 0x2000
+    echo read -P 15  0xfe000 0x2000
+
+    echo read -P 16  0x100000 0x4000
+    echo read -P 160 0x104000 0x8000
+    # Undefined content for 0x10c000 0x8000
+    echo read -P 160 0x114000 0x8000
+    echo read -P 17  0x11c000 0x4000
 }
 
 verify_io | $QEMU_IO $TEST_IMG | _filter_qemu_io
diff --git a/tests/qemu-iotests/046.out b/tests/qemu-iotests/046.out
index 565360fe60..4b50a17eeb 100644
--- a/tests/qemu-iotests/046.out
+++ b/tests/qemu-iotests/046.out
@@ -34,6 +34,38 @@ qemu-io> wrote 65536/65536 bytes at offset 917504
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 qemu-io> wrote 65536/65536 bytes at offset 983040
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1048576
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1114112
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1179648
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1245184
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1310720
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1376256
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1441792
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1507328
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1572864
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1638400
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1703936
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1769472
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1835008
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1900544
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 1966080
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> wrote 65536/65536 bytes at offset 2031616
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 qemu-io> Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=6442450944 backing_file='TEST_DIR/t.IMGFMT.base' 
 
 == Some concurrent requests touching the same cluster ==
@@ -89,6 +121,24 @@ qemu-io> wrote 8192/8192 bytes at offset XXX
 8 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 wrote 57344/57344 bytes at offset XXX
 56 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> qemu-io> blkdebug: Suspended request 'A'
+qemu-io> qemu-io> qemu-io> blkdebug: Resuming request 'A'
+qemu-io> wrote 8192/8192 bytes at offset XXX
+8 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 98304/98304 bytes at offset XXX
+96 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> qemu-io> blkdebug: Suspended request 'A'
+qemu-io> qemu-io> qemu-io> blkdebug: Resuming request 'A'
+qemu-io> wrote 8192/8192 bytes at offset XXX
+8 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 81920/81920 bytes at offset XXX
+80 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> qemu-io> blkdebug: Suspended request 'A'
+qemu-io> qemu-io> qemu-io> blkdebug: Resuming request 'A'
+qemu-io> wrote 32768/32768 bytes at offset XXX
+32 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 98304/98304 bytes at offset XXX
+96 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 qemu-io> 
 == Verify image content ==
 qemu-io> read 65536/65536 bytes at offset 0
@@ -159,5 +209,31 @@ qemu-io> read 57344/57344 bytes at offset 696320
 56 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 qemu-io> read 32768/32768 bytes at offset 753664
 32 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 16384/16384 bytes at offset 786432
+16 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 98304/98304 bytes at offset 802816
+96 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 8192/8192 bytes at offset 901120
+8 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 8192/8192 bytes at offset 909312
+8 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 16384/16384 bytes at offset 917504
+16 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 81920/81920 bytes at offset 933888
+80 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 16384/16384 bytes at offset 1015808
+16 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 8192/8192 bytes at offset 1032192
+8 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 8192/8192 bytes at offset 1040384
+8 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 16384/16384 bytes at offset 1048576
+16 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 32768/32768 bytes at offset 1064960
+32 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 32768/32768 bytes at offset 1130496
+32 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+qemu-io> read 16384/16384 bytes at offset 1163264
+16 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 qemu-io> No errors were found on the image.
 *** done