[Qemu-devel] [PULL 37/73] qemu-iotests: Test writing non-raw image headers to raw image

[Kevin Wolf]

This is forbidden if the raw driver was probed.

Signed-off-by: Kevin Wolf <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
 tests/qemu-iotests/109                            | 132 +++++++++++++
 tests/qemu-iotests/109.out                        | 231 ++++++++++++++++++++++
 tests/qemu-iotests/group                          |   1 +
 tests/qemu-iotests/sample_images/grub_mbr.raw.bz2 | Bin 0 -> 552 bytes
 4 files changed, 364 insertions(+)
 create mode 100755 tests/qemu-iotests/109
 create mode 100644 tests/qemu-iotests/109.out
 create mode 100644 tests/qemu-iotests/sample_images/grub_mbr.raw.bz2

diff --git a/tests/qemu-iotests/109 b/tests/qemu-iotests/109
new file mode 100755
index 0000000..0b668da
--- /dev/null
+++ b/tests/qemu-iotests/109
@@ -0,0 +1,132 @@
+#!/bin/bash
+#
+# Test writing image headers of other formats into raw images
+#
+# Copyright (C) 2014 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
address@hidden
+
+seq="$(basename $0)"
+echo "QA output created by $seq"
+
+here="$PWD"
+tmp=/tmp/$$
+status=1       # failure is the default!
+
+_cleanup()
+{
+    rm -f $TEST_IMG.src
+       _cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.qemu
+
+_supported_fmt raw
+_supported_proto file
+_supported_os Linux
+
+qemu_comm_method=qmp
+
+function run_qemu()
+{
+    local raw_img="$1"
+    local source_img="$2"
+    local qmp_format="$3"
+    local qmp_event="$4"
+
+    _launch_qemu -drive 
file="${source_img}",format=raw,cache=${CACHEMODE},id=src
+    _send_qemu_cmd $QEMU_HANDLE "{ 'execute': 'qmp_capabilities' }" "return"
+
+    _send_qemu_cmd $QEMU_HANDLE \
+        "{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': '$raw_img', $qmp_format
+            'mode': 'existing', 'sync': 'full'}}" \
+        "return"
+
+    _send_qemu_cmd $QEMU_HANDLE '' "$qmp_event"
+    _send_qemu_cmd $QEMU_HANDLE '{"execute":"query-block-jobs"}' "return"
+    _cleanup_qemu
+}
+
+for fmt in qcow qcow2 qed vdi vmdk vpc; do
+
+    echo
+    echo "=== Writing a $fmt header into raw ==="
+    echo
+
+    _make_test_img 64M
+    TEST_IMG="$TEST_IMG.src" IMGFMT=$fmt _make_test_img 64M
+
+    # This first test should fail: The image format was probed, we may not
+    # write an image header at the start of the image
+    run_qemu "$TEST_IMG" "$TEST_IMG.src" "" "BLOCK_JOB_ERROR"
+    $QEMU_IO -c 'read -P 0 0 64k' "$TEST_IMG" | _filter_qemu_io
+
+
+    # When raw was explicitly specified, the same must succeed
+    run_qemu "$TEST_IMG" "$TEST_IMG.src" "'format': 'raw'," "BLOCK_JOB_READY"
+    $QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
+
+done
+
+
+for sample_img in empty.bochs iotest-dirtylog-10G-4M.vhdx parallels-v1 \
+                  simple-pattern.cloop; do
+
+    echo
+    echo "=== Copying sample image $sample_img into raw ==="
+    echo
+
+    # Can't use _use_sample_img because that isn't designed to be used multiple
+    # times and it overwrites $TEST_IMG (both breaks cleanup)
+    _make_test_img 64M
+    bzcat "$SAMPLE_IMG_DIR/$sample_img.bz2" > "$TEST_IMG.src"
+
+    run_qemu "$TEST_IMG" "$TEST_IMG.src" "" "BLOCK_JOB_ERROR"
+    $QEMU_IO -c 'read -P 0 0 64k' "$TEST_IMG" | _filter_qemu_io
+
+    run_qemu "$TEST_IMG" "$TEST_IMG.src" "'format': 'raw'," "BLOCK_JOB_READY"
+    # qemu-img compare can't handle unaligned file sizes
+    $QEMU_IMG resize -f raw "$TEST_IMG.src" +0
+    $QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
+done
+
+echo
+echo "=== Write legitimate MBR into raw ==="
+echo
+
+for sample_img in grub_mbr.raw; do
+    _make_test_img 64M
+    bzcat "$SAMPLE_IMG_DIR/$sample_img.bz2" > "$TEST_IMG.src"
+
+    run_qemu "$TEST_IMG" "$TEST_IMG.src" "" "BLOCK_JOB_READY"
+    $QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
+
+    run_qemu "$TEST_IMG" "$TEST_IMG.src" "'format': 'raw'," "BLOCK_JOB_READY"
+    $QEMU_IMG compare -f raw -F raw "$TEST_IMG" "$TEST_IMG.src"
+done
+
+
+# success, all done
+echo '*** done'
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/109.out b/tests/qemu-iotests/109.out
new file mode 100644
index 0000000..7db92c9
--- /dev/null
+++ b/tests/qemu-iotests/109.out
@@ -0,0 +1,231 @@
+QA output created by 109
+
+=== Writing a qcow header into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 1024, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 1024, "offset": 1024, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 1024, 
"offset": 1024, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+
+=== Writing a qcow2 header into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 197120, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 197120, "offset": 197120, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 197120, 
"offset": 197120, "paused": false, "speed": 0, "ready": true, "type": 
"mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+
+=== Writing a qed header into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 327680, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 327680, "offset": 327680, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 327680, 
"offset": 327680, "paused": false, "speed": 0, "ready": true, "type": 
"mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+
+=== Writing a vdi header into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 1024, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 1024, "offset": 1024, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 1024, 
"offset": 1024, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+
+=== Writing a vmdk header into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 65536, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, 
"offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+
+=== Writing a vpc header into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 2560, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 2560, "offset": 2560, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 2560, 
"offset": 2560, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+
+=== Copying sample image empty.bochs into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 2560, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 2560, "offset": 2560, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 2560, 
"offset": 2560, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Image resized.
+Warning: Image size mismatch!
+Images are identical.
+
+=== Copying sample image iotest-dirtylog-10G-4M.vhdx into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 31457280, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 31457280, "offset": 
31457280, "speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 
31457280, "offset": 31457280, "paused": false, "speed": 0, "ready": true, 
"type": "mirror"}]}
+Image resized.
+Warning: Image size mismatch!
+Images are identical.
+
+=== Copying sample image parallels-v1 into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 327680, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 327680, "offset": 327680, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 327680, 
"offset": 327680, "paused": false, "speed": 0, "ready": true, "type": 
"mirror"}]}
+Image resized.
+Warning: Image size mismatch!
+Images are identical.
+
+=== Copying sample image simple-pattern.cloop into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": 
"report"}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 2048, "offset": 0, 
"speed": 0, "type": "mirror", "error": "Operation not permitted"}}
+{"return": []}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 2048, "offset": 2048, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 2048, 
"offset": 2048, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Image resized.
+Warning: Image size mismatch!
+Images are identical.
+
+=== Write legitimate MBR into raw ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
+{"return": {}}
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing 
guessed raw.
+Automatically detecting the format is dangerous for raw images, write 
operations on block 0 will be restricted.
+Specify the 'raw' format explicitly to remove the restrictions.
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 512, "offset": 512, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 512, 
"offset": 512, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+{"return": {}}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": 
"BLOCK_JOB_READY", "data": {"device": "src", "len": 512, "offset": 512, 
"speed": 0, "type": "mirror"}}
+{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 512, 
"offset": 512, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
+Warning: Image size mismatch!
+Images are identical.
+*** done
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 7dfe469..af58a68 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -111,4 +111,5 @@
 105 rw auto quick
 107 rw auto quick
 108 rw auto quick
+109 rw auto
 111 rw auto quick
diff --git a/tests/qemu-iotests/sample_images/grub_mbr.raw.bz2 
b/tests/qemu-iotests/sample_images/grub_mbr.raw.bz2
new file mode 100644
index 
0000000000000000000000000000000000000000..8585878bcdec2fdec18a3f31b360fa02450f9ff8
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literal 0
HcmV?d00001

-- 
1.8.3.1