[Qemu-block] Failing QEMU iotest 221

[Thomas Huth]

QEMU iotest 221 is failing for me, too, when I run it with -raw:

tests/qemu-iotests$ ./check -raw 221
QEMU          -- 
"/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../x86_64-softmmu/qemu-system-x86_64"
 -nodefaults -machine accel=qtest
QEMU_IMG      -- "/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../qemu-img" 
QEMU_IO       -- "/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../qemu-io"  
--cache writeback -f raw
QEMU_NBD      -- "/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../qemu-nbd" 
IMGFMT        -- raw
IMGPROTO      -- file
PLATFORM      -- Linux/x86_64 thuth 3.10.0-957.10.1.el7.x86_64
TEST_DIR      -- /home/thuth/tmp/qemu-build/tests/qemu-iotests/scratch
SOCKET_SCM_HELPER -- 
/home/thuth/tmp/qemu-build/tests/qemu-iotests/socket_scm_helper

221         - output mismatch (see 221.out.bad)
--- /home/thuth/devel/qemu/tests/qemu-iotests/221.out   2019-04-23 
16:43:12.000000000 +0200
+++ /home/thuth/tmp/qemu-build/tests/qemu-iotests/221.out.bad   2019-04-28 
17:18:52.000000000 +0200
@@ -7,10 +7,10 @@
 [{ "start": 0, "length": 43520, "depth": 0, "zero": true, "data": false, 
"offset": OFFSET}]
 wrote 1/1 bytes at offset 43008
 1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-[{ "start": 0, "length": 40960, "depth": 0, "zero": true, "data": false, 
"offset": OFFSET},
-{ "start": 40960, "length": 2049, "depth": 0, "zero": false, "data": true, 
"offset": OFFSET},
+[{ "start": 0, "length": 43008, "depth": 0, "zero": true, "data": false, 
"offset": OFFSET},
+{ "start": 43008, "length": 1, "depth": 0, "zero": false, "data": true, 
"offset": OFFSET},
 { "start": 43009, "length": 511, "depth": 0, "zero": true, "data": false, 
"offset": OFFSET}]
-[{ "start": 0, "length": 40960, "depth": 0, "zero": true, "data": false, 
"offset": OFFSET},
-{ "start": 40960, "length": 2049, "depth": 0, "zero": false, "data": true, 
"offset": OFFSET},
+[{ "start": 0, "length": 43008, "depth": 0, "zero": true, "data": false, 
"offset": OFFSET},
+{ "start": 43008, "length": 1, "depth": 0, "zero": false, "data": true, 
"offset": OFFSET},
 { "start": 43009, "length": 511, "depth": 0, "zero": true, "data": false, 
"offset": OFFSET}]
 *** done
Failures: 221
Failed 1 of 1 tests

Any ideas how to fix this?

 Thomas