diff options
| -rwxr-xr-x | tests/qemu-iotests/138 | 41 | ||||
| -rw-r--r-- | tests/qemu-iotests/138.out | 14 |
2 files changed, 53 insertions, 2 deletions
diff --git a/tests/qemu-iotests/138 b/tests/qemu-iotests/138 index 54b01046ad..1d5b0bed6d 100755 --- a/tests/qemu-iotests/138 +++ b/tests/qemu-iotests/138 @@ -41,8 +41,10 @@ _supported_fmt qcow2 _supported_proto file _supported_os Linux # With an external data file, data clusters are not refcounted -# (and so qemu-img check does not check their refcount) -_unsupported_imgopts data_file +# (so qemu-img check would not do much); +# we want to modify the refcounts, so we need them to have a specific +# format (namely u16) +_unsupported_imgopts data_file 'refcount_bits=\([^1]\|.\([^6]\|$\)\)' echo echo '=== Check on an image with a multiple of 2^32 clusters ===' @@ -65,6 +67,41 @@ poke_file "$TEST_IMG" $((2048 + 8)) "\x00\x80\x00\x00\x00\x00\x00\x00" # allocate memory", we have an error showing that l2 entry is invalid. _check_test_img +echo +echo '=== Check leaks-fixed/corruptions-fixed report' +echo + +# After leaks and corruptions were fixed, those numbers should be +# reported by qemu-img check +_make_test_img 64k + +# Allocate data cluster +$QEMU_IO -c 'write 0 64k' "$TEST_IMG" | _filter_qemu_io + +reftable_ofs=$(peek_file_be "$TEST_IMG" 48 8) +refblock_ofs=$(peek_file_be "$TEST_IMG" $reftable_ofs 8) + +# Introduce a leak: Make the image header's refcount 2 +poke_file_be "$TEST_IMG" "$refblock_ofs" 2 2 + +l1_ofs=$(peek_file_be "$TEST_IMG" 40 8) + +# Introduce a corruption: Drop the COPIED flag from the (first) L1 entry +l1_entry=$(peek_file_be "$TEST_IMG" $l1_ofs 8) +l1_entry=$((l1_entry & ~(1 << 63))) +poke_file_be "$TEST_IMG" $l1_ofs 8 $l1_entry + +echo +# Should print the number of corruptions and leaks fixed +# (Filter out all JSON fields (recognizable by their four-space +# indentation), but keep the "-fixed" fields (by removing two spaces +# from their indentation)) +# (Also filter out the L1 entry, because why not) +_check_test_img -r all --output=json \ + | sed -e 's/^ \(.*\)-fixed"/\1-fixed"/' \ + -e '/^ /d' \ + -e "s/\\([^0-9a-f]\\)$(printf %x $l1_entry)\\([^0-9a-f]\\)/\1L1_ENTRY_VALUE\2/" + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/138.out b/tests/qemu-iotests/138.out index aca7d47a80..79681e7cc9 100644 --- a/tests/qemu-iotests/138.out +++ b/tests/qemu-iotests/138.out @@ -9,4 +9,18 @@ ERROR: counting reference for region exceeding the end of the file by one cluste 1 errors were found on the image. Data may be corrupted, or further writes to the image may corrupt it. + +=== Check leaks-fixed/corruptions-fixed report + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=65536 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +Leaked cluster 0 refcount=2 reference=1 +Repairing cluster 0 refcount=2 reference=1 +Repairing OFLAG_COPIED L2 cluster: l1_index=0 l1_entry=L1_ENTRY_VALUE refcount=1 +{ + "corruptions-fixed": 1, + "leaks-fixed": 1, +} *** done |