diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 242e1f89b2..60a6910b1e 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -359,15 +359,6 @@ static int coroutine_fn copy_sectors(BlockDriverState *bs,
     struct iovec iov;
     int n, ret;
 
-    /*
-     * If this is the last cluster and it is only partially used, we must only
-     * copy until the end of the image, or bdrv_check_request will fail for the
-     * bdrv_read/write calls below.
-     */
-    if (start_sect + n_end > bs->total_sectors) {
-        n_end = bs->total_sectors - start_sect;
-    }
-
     n = n_end - n_start;
     if (n <= 0) {
         return 0;
diff --git a/tests/qemu-iotests/029 b/tests/qemu-iotests/029
index b424726fc4..567e07160c 100755
--- a/tests/qemu-iotests/029
+++ b/tests/qemu-iotests/029
@@ -1,7 +1,6 @@
 #!/bin/bash
 #
-# Test loading internal snapshots where the L1 table of the snapshot
-# is smaller than the current L1 table.
+# qcow2 internal snapshots/VM state tests
 #
 # Copyright (C) 2011 Red Hat, Inc.
 #
@@ -45,6 +44,11 @@ _supported_fmt qcow2
 _supported_proto generic
 _supported_os Linux
 
+echo
+echo Test loading internal snapshots where the L1 table of the snapshot
+echo is smaller than the current L1 table.
+echo
+
 CLUSTER_SIZE=65536
 _make_test_img 64M
 $QEMU_IMG snapshot -c foo "$TEST_IMG"
@@ -59,6 +63,20 @@ $QEMU_IO -c 'write -b 0 4M' "$TEST_IMG" | _filter_qemu_io
 $QEMU_IMG snapshot -a foo "$TEST_IMG"
 _check_test_img
 
+
+echo
+echo Try using a huge VM state
+echo
+
+CLUSTER_SIZE=65536
+_make_test_img 64M
+{ $QEMU_IO -c "write -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+{ $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+{ $QEMU_IMG snapshot -a foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+{ $QEMU_IO -c "read -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+_check_test_img
+
+
 # success, all done
 echo "*** done"
 rm -f $seq.full
diff --git a/tests/qemu-iotests/029.out b/tests/qemu-iotests/029.out
index 0eedb3a3ab..9029698a1c 100644
--- a/tests/qemu-iotests/029.out
+++ b/tests/qemu-iotests/029.out
@@ -1,4 +1,8 @@
 QA output created by 029
+
+Test loading internal snapshots where the L1 table of the snapshot
+is smaller than the current L1 table.
+
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
 wrote 4096/4096 bytes at offset 0
 4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
@@ -7,4 +11,13 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=16777216
 wrote 4194304/4194304 bytes at offset 0
 4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 No errors were found on the image.
+
+Try using a huge VM state
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+wrote 4096/4096 bytes at offset 1099511627776
+4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 4096/4096 bytes at offset 1099511627776
+4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+No errors were found on the image.
 *** done