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| author | Max Reitz <mreitz@redhat.com> | 2020-07-28 14:08:05 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2020-07-28 15:28:56 +0200 |
| commit | ae159450e161b3e1e2c5b815d19632abbbbcd1a1 (patch) | |
| tree | 36f1167c8e0f801c1d5ddee1d103fb8c1ff3390b | |
| parent | 134b7dec6ec2d90616d7986afb3b3b7ca7a4c383 (diff) | |
| download | qemu-ae159450e161b3e1e2c5b815d19632abbbbcd1a1.zip qemu-ae159450e161b3e1e2c5b815d19632abbbbcd1a1.tar.gz qemu-ae159450e161b3e1e2c5b815d19632abbbbcd1a1.tar.bz2 | |
iotests/028: Add test for cross-base-EOF reads
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200728120806.265916-3-mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: Claudio Fontana <cfontana@suse.de>
| -rwxr-xr-x | tests/qemu-iotests/028 | 19 | ||||
| -rw-r--r-- | tests/qemu-iotests/028.out | 11 |
2 files changed, 30 insertions, 0 deletions
diff --git a/tests/qemu-iotests/028 b/tests/qemu-iotests/028 index 5d043ce..6dd3ae0 100755 --- a/tests/qemu-iotests/028 +++ b/tests/qemu-iotests/028 @@ -142,6 +142,25 @@ TEST_IMG="${TEST_IMG}.copy" io_zero readv $(( offset + 32 * 1024 )) 512 1024 32 _check_test_img +echo +echo '=== Reading across backing EOF in one operation ===' +echo + +# Use a cluster boundary as the base end here +base_size=$((3 * 1024 * 1024 * 1024)) + +TEST_IMG="$TEST_IMG.base" _make_test_img $base_size +_make_test_img -b "$TEST_IMG.base" -F $IMGFMT $image_size + +# Write 16 times 42 at the end of the base image +$QEMU_IO -c "write -P 42 $((base_size - 16)) 16" "$TEST_IMG.base" \ + | _filter_qemu_io + +# Read 32 bytes across the base EOF from the top; +# should be 16 times 0x2a, then 16 times 0x00 +$QEMU_IO -c "read -v $((base_size - 16)) 32" "$TEST_IMG" \ + | _filter_qemu_io + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/028.out b/tests/qemu-iotests/028.out index 12f82c6..5a68de5 100644 --- a/tests/qemu-iotests/028.out +++ b/tests/qemu-iotests/028.out @@ -730,4 +730,15 @@ read 512/512 bytes at offset 3221257728 read 512/512 bytes at offset 3221258752 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) No errors were found on the image. + +=== Reading across backing EOF in one operation === + +Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=3221225472 +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=4294968832 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT +wrote 16/16 bytes at offset 3221225456 +16 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +bffffff0: 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a ................ +c0000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +read 32/32 bytes at offset 3221225456 +32 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) *** done |