5 files changed, 57 insertions, 3 deletions
diff --git a/tests/qemu-iotests/026 b/tests/qemu-iotests/026
index 7fadfbace5..582d254195 100755
--- a/tests/qemu-iotests/026
+++ b/tests/qemu-iotests/026
@@ -200,6 +200,23 @@ done
 done
 done
 
+echo
+echo === Avoid cluster leaks after temporary failure ===
+echo
+
+cat > "$TEST_DIR/blkdebug.conf" <<EOF
+[inject-error]
+event = "write_aio"
+errno = "5"
+once = "on"
+EOF
+
+# After the failed first write, do a second write so that the updated refcount
+# block is actually written back
+_make_test_img 64M
+$QEMU_IO -c "write 0 1M" -c "write 0 1M" "$BLKDBG_TEST_IMG" | _filter_qemu_io
+_check_test_img
+
 # success, all done
 echo "*** done"
 rm -f $seq.full
diff --git a/tests/qemu-iotests/026.out b/tests/qemu-iotests/026.out
index 8e89416a86..dd10a82b51 100644
--- a/tests/qemu-iotests/026.out
+++ b/tests/qemu-iotests/026.out
@@ -675,4 +675,12 @@ write failed: No space left on device
 
 96 leaked clusters were found on the image.
 This means waste of disk space, but no harm to data.
+
+=== Avoid cluster leaks after temporary failure ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+write failed: Input/output error
+wrote 1048576/1048576 bytes at offset 0
+1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+No errors were found on the image.
 *** done
diff --git a/tests/qemu-iotests/026.out.nocache b/tests/qemu-iotests/026.out.nocache
index ea2e166a4e..1ca6cda15c 100644
--- a/tests/qemu-iotests/026.out.nocache
+++ b/tests/qemu-iotests/026.out.nocache
@@ -541,7 +541,7 @@ Failed to flush the L2 table cache: No space left on device
 Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
 
-11 leaked clusters were found on the image.
+10 leaked clusters were found on the image.
 This means waste of disk space, but no harm to data.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
@@ -569,7 +569,7 @@ Failed to flush the L2 table cache: No space left on device
 Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
 
-11 leaked clusters were found on the image.
+10 leaked clusters were found on the image.
 This means waste of disk space, but no harm to data.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
@@ -597,7 +597,7 @@ Failed to flush the L2 table cache: No space left on device
 Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
 
-11 leaked clusters were found on the image.
+10 leaked clusters were found on the image.
 This means waste of disk space, but no harm to data.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
@@ -683,4 +683,12 @@ write failed: No space left on device
 
 96 leaked clusters were found on the image.
 This means waste of disk space, but no harm to data.
+
+=== Avoid cluster leaks after temporary failure ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+write failed: Input/output error
+wrote 1048576/1048576 bytes at offset 0
+1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+No errors were found on the image.
 *** done
diff --git a/tests/qemu-iotests/063 b/tests/qemu-iotests/063
index e4f6ea9385..adc037c1f5 100755
--- a/tests/qemu-iotests/063
+++ b/tests/qemu-iotests/063
@@ -91,6 +91,15 @@ if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG.orig" "$TEST_IMG" >/dev
     exit 1
 fi
 
+echo "== Regression testing for copy offloading bug =="
+
+_make_test_img 1M
+TEST_IMG="$TEST_IMG.target" _make_test_img 1M
+$QEMU_IO -c 'write -P 1 0 512k' -c 'write -P 2 512k 512k' "$TEST_IMG" | _filter_qemu_io
+$QEMU_IO -c 'write -P 4 512k 512k' -c 'write -P 3 0 512k' "$TEST_IMG.target" | _filter_qemu_io
+$QEMU_IMG convert -n -O $IMGFMT "$TEST_IMG" "$TEST_IMG.target"
+$QEMU_IMG compare "$TEST_IMG" "$TEST_IMG.target"
+
 echo "*** done"
 rm -f $seq.full
 status=0
diff --git a/tests/qemu-iotests/063.out b/tests/qemu-iotests/063.out
index de1c99afd8..7b691b2c9e 100644
--- a/tests/qemu-iotests/063.out
+++ b/tests/qemu-iotests/063.out
@@ -7,4 +7,16 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=4194304
 No errors were found on the image.
 == Testing conversion to a smaller file fails ==
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2097152
+== Regression testing for copy offloading bug ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+Formatting 'TEST_DIR/t.IMGFMT.target', fmt=IMGFMT size=1048576
+wrote 524288/524288 bytes at offset 0
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 524288/524288 bytes at offset 524288
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 524288/524288 bytes at offset 524288
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 524288/524288 bytes at offset 0
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Images are identical.
 *** done