Commit Graph

1516 Commits

Author SHA1 Message Date
Max Reitz 32558ce7a4 iotests.py: Store socket files in $SOCK_DIR
iotests.py itself does not store socket files, but machine.py and
qtest.py do.  iotests.py needs to pass the respective path to them, and
they need to adhere to it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20191017133155.5327-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz c7df3f19d2 iotests: Introduce $SOCK_DIR
Unix sockets generally have a maximum path length.  Depending on your
$TEST_DIR, it may be exceeded and then all tests that create and use
Unix sockets there may fail.

Circumvent this by adding a new scratch directory specifically for
Unix socket files.  It defaults to a temporary directory (mktemp -d)
that is completely removed after the iotests are done.

(By default, mktemp -d creates a /tmp/tmp.XXXXXXXXXX directory, which
should be short enough for our use cases.)

Use mkdir -p to create the directory (because it seems right), and do
the same for $TEST_DIR (because there is no reason for that to be
created in any different way).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20191017133155.5327-2-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz 767de537b1 iotests: Cache supported_formats()
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190917092004.999-8-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz 753b31b5f3 iotests: Test driver whitelisting in 136
null-aio may not be whitelisted.  Skip all test cases that require it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190917092004.999-7-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz a377dd5170 iotests: Test driver whitelisting in 093
null-aio may not be whitelisted.  Skip all test cases that require it.

(And skip the whole test if null-co is not whitelisted.)

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190917092004.999-6-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz 7448be831a iotests: Let skip_if_unsupported accept a function
This lets tests use skip_if_unsupported() with a potentially variable
list of required formats.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190917092004.999-5-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz e6067a950c iotests: Use case_skip() in skip_if_unsupported()
skip_if_unsupported() should use the stronger variant case_skip(),
because this allows it to be used even with setUp() (in a meaningful
way).

In the process, make it explicit what we expect the first argument of
the func_wrapper to be (namely something derived of QMPTestCase).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190917092004.999-4-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz 6be0122520 iotests: Allow skipping test cases
case_notrun() does not actually skip the current test case.  It just
adds a "notrun" note and then returns to the caller, who manually has to
skip the test.  Generally, skipping a test case is as simple as
returning from the current function, but not always: For example, this
model does not allow skipping tests already in the setUp() function.

Thus, add a QMPTestCase.case_skip() function that invokes case_notrun()
and then self.skipTest().  To make this work, we need to filter the
information on how many test cases were skipped from the unittest
output.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Message-id: 20190917092004.999-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz a6f8f9f82c iotests: Prefer null-co over null-aio
We use null-co basically everywhere in the iotests.  Unless we want to
test null-aio specifically, we should use it instead (for consistency).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190917092004.999-2-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Kevin Wolf d926f4ddd2 iotests: Skip read-only cases in 118 when run as root
Some tests in 118 use chmod to remove write permissions from the file
and assume that the image can indeed not be opened read-write
afterwards. This doesn't work when the test is run as root, because root
can still open the file as writable even when the permission bit isn't
set.

Introduce a @skip_if_root decorator and use it in 118 to skip the tests
in question when the script is run as root.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-25 15:15:01 +02:00
Vladimir Sementsov-Ogievskiy 23ee0ec236 iotests: test nbd reconnect
Add test, which starts backup to nbd target and restarts nbd server
during backup.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20191009084158.15614-4-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-10-22 20:51:31 -05:00
Vladimir Sementsov-Ogievskiy 5d9388d4b2 iotests: add test 260 to check bitmap life after snapshot + commit
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-8-vsementsov@virtuozzo.com
[Maintainer edit: removed 260 from auto group per Peter Maydell. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy 5752f89a78 iotests: add test-case to 165 to test reopening qcow2 bitmaps to RW
Reopening bitmaps to RW was broken prior to previous commit. Check that
it works now.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-4-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Max Reitz a1406a9262 iotests: Test large write request to qcow2 file
Without HEAD^, the following happens when you attempt a large write
request to a qcow2 file such that the number of bytes covered by all
clusters involved in a single allocation will exceed INT_MAX:

(A) handle_alloc_space() decides to fill the whole area with zeroes and
    fails because bdrv_co_pwrite_zeroes() fails (the request is too
    large).

(B) If handle_alloc_space() does not do anything, but merge_cow()
    decides that the requests can be merged, it will create a too long
    IOV that later cannot be written.

(C) Otherwise, all parts will be written separately, so those requests
    will work.

In either B or C, though, qcow2_alloc_cluster_link_l2() will have an
overflow: We use an int (i) to iterate over nb_clusters, and then
calculate the L2 entry based on "i << s->cluster_bits" -- which will
overflow if the range covers more than INT_MAX bytes.  This then leads
to image corruption because the L2 entry will be wrong (it will be
recognized as a compressed cluster).

Even if that were not the case, the .cow_end area would be empty
(because handle_alloc() will cap avail_bytes and nb_bytes at INT_MAX, so
their difference (which is the .cow_end size) will be 0).

So this test checks that on such large requests, the image will not be
corrupted.  Unfortunately, we cannot check whether COW will be handled
correctly, because that data is discarded when it is written to null-co
(but we have to use null-co, because writing 2 GB of data in a test is
not quite reasonable).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-10-14 17:12:48 +02:00
Max Reitz 48c8d3ce6d iotests/028: Fix for long $TEST_DIRs
For long test image paths, the order of the "Formatting" line and the
"(qemu)" prompt after a drive_backup HMP command may be reversed.  In
fact, the interaction between the prompt and the line may lead to the
"Formatting" to being greppable at all after "read"-ing it (if the
prompt injects an IFS character into the "Formatting" string).

So just wait until we get a prompt.  At that point, the block job must
have been started, so "info block-jobs" will only return "No active
jobs" once it is done.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-10-14 17:12:48 +02:00
Alberto Garcia f2208fdc5b block: Reject misaligned write requests with BDRV_REQ_NO_FALLBACK
The BDRV_REQ_NO_FALLBACK flag means that an operation should only be
performed if it can be offloaded or otherwise performed efficiently.

However a misaligned write request requires a RMW so we should return
an error and let the caller decide how to proceed.

This hits an assertion since commit c8bb23cbdb if the required
alignment is larger than the cluster size:

qemu-img create -f qcow2 -o cluster_size=2k img.qcow2 4G
qemu-io -c "open -o driver=qcow2,file.align=4k blkdebug::img.qcow2" \
        -c 'write 0 512'
qemu-io: block/io.c:1127: bdrv_driver_pwritev: Assertion `!(flags & BDRV_REQ_NO_FALLBACK)' failed.
Aborted

The reason is that when writing to an unallocated cluster we try to
skip the copy-on-write part and zeroize it using BDRV_REQ_NO_FALLBACK
instead, resulting in a write request that is too small (2KB cluster
size vs 4KB required alignment).

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-10-14 17:12:48 +02:00
Max Reitz 35f05b2e2e iotests/162: Fix for newer Linux 5.3+
Linux 5.3 has made 0.0.0.0/8 a working IPv4 subnet.  As such, "42" is
now a valid host, and the connection to it will (hopefully) time out
over a long period rather than quickly return with EINVAL.

So let us use a negative integer for testing that NBD will not crash
when it receives integer hosts.  This way, the connection will again
fail quickly and reliably.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20191002174052.5773-1-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 12:13:23 +02:00
Daniel P. Berrangé da51e998f8 tests: fix I/O test for hosts defaulting to LUKSv2
Some distros are now defaulting to LUKS version 2 which QEMU cannot
process. For our I/O test that validates interoperability between the
kernel/cryptsetup and QEMU, we need to explicitly ask for version 1
of the LUKS format.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20190927101155.25896-1-berrange@redhat.com
Tested-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:18 +02:00
Vladimir Sementsov-Ogievskiy 00e30f05de block/backup: use backup-top instead of write notifiers
Drop write notifiers and use filter node instead.

= Changes =

1. Add filter-node-name argument for backup qmp api. We have to do it
in this commit, as 257 needs to be fixed.

2. There are no more write notifiers here, so is_write_notifier
parameter is dropped from block-copy paths.

3. To sync with in-flight requests at job finish we now have drained
removing of the filter, we don't need rw-lock.

4. Block-copy is now using BdrvChildren instead of BlockBackends

5. As backup-top owns these children, we also move block-copy state
into backup-top's ownership.

= Iotest changes =

56: op-blocker doesn't shoot now, as we set it on source, but then
check on filter, when trying to start second backup.
To keep the test we instead can catch another collision: both jobs will
get 'drive0' job-id, as job-id parameter is unspecified. To prevent
interleaving with file-posix locks (as they are dependent on config)
let's use another target for second backup.

Also, it's obvious now that we'd like to drop this op-blocker at all
and add a test-case for two backups from one node (to different
destinations) actually works. But not in these series.

141: Output changed: prepatch, "Node is in use" comes from bdrv_has_blk
check inside qmp_blockdev_del. But we've dropped block-copy blk
objects, so no more blk objects on source bs (job blk is on backup-top
filter bs). New message is from op-blocker, which is the next check in
qmp_blockdev_add.

257: The test wants to emulate guest write during backup. They should
go to filter node, not to original source node, of course. Therefore we
need to specify filter node name and use it.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191001131409.14202-6-vsementsov@virtuozzo.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:18 +02:00
Max Reitz f2d86ade4d iotests: Use stat -c %b in 125
125 should not use qemu-img to get the on-disk image size, because that
reports it in a human-readable format that is useless to us.  Just use
stat instead (like we do to get the image file length).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190925183231.11196-4-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:18 +02:00
Max Reitz 285f595d74 iotests: Disable 125 on broken XFS versions
And by that I mean all XFS versions, as far as I can tell.  All details
are in the comment below.

We never noticed this problem because we only read the first number from
qemu-img info's "disk size" output -- and that is effectively useless,
because qemu-img prints a human-readable value (which generally includes
a decimal point).  That will be fixed in the next patch.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190925183231.11196-3-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:18 +02:00
Max Reitz e6e8db0337 iotests: Fix 125 for growth_mode = metadata
If we use growth_mode = metadata, it is very much possible that the file
uses more disk space after we have written something to the added area.
We did indeed want to test for this case, but unfortunately we evidently
just copied the code from the "Test creation preallocation" section and
forgot to replace "$create_mode" by "$growth_mode".

We never noticed because we only read the first number from qemu-img
info's "disk size" output -- and that is effectively useless, because
qemu-img prints a human-readable value (which generally includes a
decimal point).  That will be fixed in the patch after the next one.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190925183231.11196-2-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:18 +02:00
Anton Nefedov 159f85ddc8 qapi: add unmap to BlockDeviceStats
Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20190923121737.83281-3-anton.nefedov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:18 +02:00
Vladimir Sementsov-Ogievskiy 15e4e6e6ad iotests: 257: drop device_add
SCSI devices are unused in test, drop them.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190920142056.12778-12-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:18 +02:00
Vladimir Sementsov-Ogievskiy f164845479 iotests: 257: drop unused Drive.device field
After previous commit Drive.device is actually unused. Drop it together
with .name property.  While being here reuse .node in qmp commands
instead of writing 'drive0' twice.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190920142056.12778-11-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:17 +02:00
Vladimir Sementsov-Ogievskiy 5c4343b89d iotests: prepare 124 and 257 bitmap querying for backup-top filter
After backup-top filter appearing it's not possible to see dirty
bitmaps in top node, so use node-name instead.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190920142056.12778-10-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:17 +02:00
Vladimir Sementsov-Ogievskiy ee1e66d957 qemu-iotests: ignore leaks on failure paths in 026
Upcoming asynchronous handling of sub-parts of qcow2 requests will
change number of leaked clusters and even make it racy. As a
preparation, ignore leaks on failure parts in 026.

It's not trivial to just grep or substitute qemu-img output for such
thing. Instead do better: 3 is a error code of qemu-img check, if only
leaks are found. Catch this case and print success output.

Suggested-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190916175324.18478-2-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:17 +02:00
Max Reitz 4d804b5305 iotests/262: Switch source/dest VM launch order
Launching the destination VM before the source VM gives us a regression
test for HEAD^:

The guest device causes a read from the disk image through
guess_disk_lchs().  This will not work if the first sector (containing
the partition table) is yet unallocated, we use COR, and the node is
inactive.

By launching the source VM before the destination, however, the COR
filter on the source will allocate that area in the image shared between
both VMs, thus the problem will not become apparent.

Switching the launch order causes the sector to still be unallocated
when guess_disk_lchs() runs on the inactive node in the destination VM,
and thus we get our test case.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20191001174827.11081-3-mreitz@redhat.com
Message-Id: <20191001174827.11081-3-mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-10-08 14:28:25 +01:00
Kevin Wolf 7e693a0500 iotests: Remove Python 2 compatibility code
Some scripts check the Python version number and have two code paths to
accomodate both Python 2 and 3. Remove the code specific to Python 2 and
assert the minimum version of 3.6 instead (check skips Python tests in
this case, so the assertion would only ever trigger if a Python script
is executed manually).

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2019-10-04 11:59:16 +02:00
Kevin Wolf c69719fcad iotests: Require Python 3.6 or later
Running iotests is not required to build QEMU, so we can have stricter
version requirements for Python here and can make use of new features
and drop compatibility code earlier.

This makes qemu-iotests skip all Python tests if a Python version before
3.6 is used for the build.

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2019-10-04 11:59:16 +02:00
Kevin Wolf 92b22e7b17 iotests: Test internal snapshots with -blockdev
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Tested-by: Peter Krempa <pkrempa@redhat.com>
2019-10-04 11:59:01 +02:00
Eric Blake 506902c6fa tests: Use iothreads during iotest 223
Doing so catches the bugs we just fixed with NBD not properly using
correct contexts.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190920220729.31801-1-eblake@redhat.com>
2019-09-24 07:30:19 -05:00
Eric Blake 1b5c15cebd nbd/client: Add hint when TLS is missing
I received an off-list report of failure to connect to an NBD server
expecting an x509 certificate, when the client was attempting something
similar to this command line:

$ ./x86_64-softmmu/qemu-system-x86_64 -name 'blah' -machine q35 -nodefaults \
  -object tls-creds-x509,id=tls0,endpoint=client,dir=$path_to_certs \
  -device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pcie.0,addr=0x6 \
  -drive id=drive_image1,if=none,snapshot=off,aio=threads,cache=none,format=raw,file=nbd:localhost:9000,werror=stop,rerror=stop,tls-creds=tls0 \
  -device scsi-hd,id=image1,drive=drive_image1,bootindex=0
qemu-system-x86_64: -drive id=drive_image1,if=none,snapshot=off,aio=threads,cache=none,format=raw,file=nbd:localhost:9000,werror=stop,rerror=stop,tls-creds=tls0: TLS negotiation required before option 7 (go)
server reported: Option 0x7 not permitted before TLS

The problem?  As specified, -drive is trying to pass tls-creds to the
raw format driver instead of the nbd protocol driver, but before we
get to the point where we can detect that raw doesn't know what to do
with tls-creds, the nbd driver has already failed because the server
complained.  The fix to the broken command line?  Pass
'...,file.tls-creds=tls0' to ensure the tls-creds option is handed to
nbd, not raw.  But since the error message was rather cryptic, I'm
trying to improve the error message.

With this patch, the error message adds a line:

qemu-system-x86_64: -drive id=drive_image1,if=none,snapshot=off,aio=threads,cache=none,format=raw,file=nbd:localhost:9000,werror=stop,rerror=stop,tls-creds=tls0: TLS negotiation required before option 7 (go)
Did you forget a valid tls-creds?
server reported: Option 0x7 not permitted before TLS

And with luck, someone grepping for that error message will find this
commit message and figure out their command line mistake.  Sadly, the
only mention of file.tls-creds in our docs relates to an --image-opts
use of PSK encryption with qemu-img as the client, rather than x509
certificate encryption with qemu-kvm as the client.

CC: Tingting Mao <timao@redhat.com>
CC: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190907172055.26870-1-eblake@redhat.com>
[eblake: squash in iotest 233 fix]
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-09-24 07:30:19 -05:00
Thomas Huth 976e8c5414 Replace '-machine accel=xyz' with '-accel xyz'
We've got a separate option to configure the accelerator nowadays, which
is shorter to type and the preferred way of specifying an accelerator.
Use it in the source and examples to show that it is the favored option.
(However, do not touch the places yet which also specify other machine
options or multiple accelerators - these are currently still better
handled with one single "-machine" statement instead)

Signed-off-by: Thomas Huth <thuth@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190904052739.22123-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-09-19 12:01:48 +02:00
Maxim Levitsky 1825cc0783 qemu-iotests: Add test for bz #1745922
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Tested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190915203655.21638-4-mlevitsk@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-16 15:37:12 +02:00
Vladimir Sementsov-Ogievskiy 9407cf862c tests/qemu-iotests: Fix qemu-io related output in 026.out.nocache
qemu-io now prefixes its error and warnings with "qemu-io:".
36b9986b08 fixed a lot of iotests output but forget about
026.out.nocache. Fix it too.

Fixes: 99e98d7c9f ("qemu-io: Use error_[gs]et_progname()")
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190816153015.447957-2-vsementsov@virtuozzo.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-16 14:48:30 +02:00
Thomas Huth 4ee5f4be4f tests/qemu-iotests/check: Replace "tests" with "iotests" in final status text
When running "make check -j8" or something similar, the iotests are
running in parallel with the other tests. So when they are printing
out "Passed all xx tests" or a similar status message at the end,
it might not be quite clear that this message belongs to the iotests,
since the output might be mixed with the other tests. Thus change the
word "tests" here to "iotests" instead to avoid confusion.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190906113920.11271-1-thuth@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-16 14:48:30 +02:00
Andrey Shinkevich 4e08bee467 iotests: extend sleeping time under Valgrind
To synchronize the time when QEMU is running longer under the Valgrind,
increase the sleeping time in the test 247.

Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-13 12:18:37 +02:00
Andrey Shinkevich fbd1c37838 iotests: extended timeout under Valgrind
As the iotests run longer under the Valgrind, the QEMU_COMM_TIMEOUT is
to be increased in the test cases 028, 183 and 192 when running under
the Valgrind.

Suggested-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-13 12:18:37 +02:00
Andrey Shinkevich ad20319a91 iotests: Valgrind fails with nonexistent directory
The Valgrind uses the exported variable TMPDIR and fails if the
directory does not exist. Let us exclude such a test case from
being run under the Valgrind and notify the user of it.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-13 12:18:37 +02:00
Andrey Shinkevich 5ff1c2c830 iotests: Add casenotrun report to bash tests
The new function _casenotrun() is to be invoked if a test case cannot
be run for some reason. The user will be notified by a message passed
to the function. It is the caller's responsibility to make skipped a
particular test.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-13 12:18:37 +02:00
Andrey Shinkevich 8af224d66b iotests: exclude killed processes from running under Valgrind
The Valgrind tool fails to manage its termination in multi-threaded
 processes when they raise the signal SIGKILL. The bug has been reported
 to the Valgrind maintainers and was registered as the bug #409141:
 https://bugs.kde.org/show_bug.cgi?id=409141
 Let's exclude such test cases from running under the Valgrind until a
 new version with the bug fix is released because checking for the
 memory issues is covered by other test cases.

Suggested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-13 12:18:37 +02:00
Andrey Shinkevich 036d8cbffd iotests: allow Valgrind checking all QEMU processes
With the '-valgrind' option, let all the QEMU processes be run under
the Valgrind tool. The Valgrind own parameters may be set with its
environment variable VALGRIND_OPTS, e.g.
$ VALGRIND_OPTS="--leak-check=yes" ./check -valgrind <test#>
or they may be listed in the Valgrind checked file ./.valgrindrc or
~/.valgrindrc like
--memcheck:leak-check=no
--memcheck:track-origins=yes
To exclude a specific process from running under the Valgrind, the
corresponding environment variable VALGRIND_QEMU_<name> is to be set
to the empty string:
$ VALGRIND_QEMU_IO= ./check -valgrind <test#>
When QEMU-IO process is being killed, the shell report refers to the
text of the command in _qemu_io_wrapper(), which was modified with this
patch. So, the benchmark output for the tests 039, 061 and 137 is to be
changed also.

Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-13 12:18:37 +02:00
Vladimir Sementsov-Ogievskiy d885ac33cf iotests: skip 232 when run tests as root
chmod a-w don't help under root, so skip the test in such case.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz cb73747e1a iotests: Test blockdev-create for vpc
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz 7c932a1d69 iotests: Restrict nbd Python tests to nbd
We have two Python unittest-style tests that test NBD.  As such, they
should specify supported_protocols=['nbd'] so they are skipped when the
user wants to test some other protocol.

Furthermore, we should restrict their choice of formats to 'raw'.  The
idea of a protocol/format combination is to use some format over some
protocol; but we always use the raw format over NBD.  It does not really
matter what the NBD server uses on its end, and it is not a useful test
of the respective format driver anyway.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz 103cbc771e iotests: Restrict file Python tests to file
Most of our Python unittest-style tests only support the file protocol.
You can run them with any other protocol, but the test will simply
ignore your choice and use file anyway.

We should let them signal that they require the file protocol so they
are skipped when you want to test some other protocol.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz 88d2aa533a iotests: Add supported protocols to execute_test()
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz ae6ef01909 iotests: Test reverse sub-cluster qcow2 writes
This exercises the regression introduced in commit
50ba5b2d99.  On my machine, it has close
to a 50 % false-negative rate, but that should still be sufficient to
test the fix.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Eric Blake b491dbb7f8 nbd: Implement server use of NBD FAST_ZERO
The server side is fairly straightforward: we can always advertise
support for detection of fast zero, and implement it by mapping the
request to the block layer BDRV_REQ_NO_FALLBACK.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190823143726.27062-5-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[eblake: update iotests 223, 233]
2019-09-05 16:04:53 -05:00
Eric Blake dbb38caac5 nbd: Improve per-export flag handling in server
When creating a read-only image, we are still advertising support for
TRIM and WRITE_ZEROES to the client, even though the client should not
be issuing those commands.  But seeing this requires looking across
multiple functions:

All callers to nbd_export_new() passed a single flag based solely on
whether the export allows writes.  Later, we then pass a constant set
of flags to nbd_negotiate_options() (namely, the set of flags which we
always support, at least for writable images), which is then further
dynamically modified with NBD_FLAG_SEND_DF based on client requests
for structured options.  Finally, when processing NBD_OPT_EXPORT_NAME
or NBD_OPT_EXPORT_GO we bitwise-or the original caller's flag with the
runtime set of flags we've built up over several functions.

Let's refactor things to instead compute a baseline of flags as soon
as possible which gets shared between multiple clients, in
nbd_export_new(), and changing the signature for the callers to pass
in a simpler bool rather than having to figure out flags.  We can then
get rid of the 'myflags' parameter to various functions, and instead
refer to client for everything we need (we still have to perform a
bitwise-OR for NBD_FLAG_SEND_DF during NBD_OPT_EXPORT_NAME and
NBD_OPT_EXPORT_GO, but it's easier to see what is being computed).
This lets us quit advertising senseless flags for read-only images, as
well as making the next patch for exposing FAST_ZERO support easier to
write.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190823143726.27062-2-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[eblake: improve commit message, update iotest 223]
2019-09-05 16:02:54 -05:00
Eric Blake 5de47735c7 nbd: Tolerate more errors to structured reply request
A server may have a reason to reject a request for structured replies,
beyond just not recognizing them as a valid request; similarly, it may
have a reason for rejecting a request for a meta context.  It doesn't
hurt us to continue talking to such a server; otherwise 'qemu-nbd
--list' of such a server fails to display all available details about
the export.

Encountered when temporarily tweaking nbdkit to reply with
NBD_REP_ERR_POLICY.  Present since structured reply support was first
added (commit d795299b reused starttls handling, but starttls is
different in that we can't fall back to other behavior on any error).

Note that for an unencrypted client trying to connect to a server that
requires encryption, this defers the point of failure to when we
finally execute a strict command (such as NBD_OPT_GO or NBD_OPT_LIST),
now that the intermediate NBD_OPT_STRUCTURED_REPLY does not diagnose
NBD_REP_ERR_TLS_REQD as fatal; but as the protocol eventually gets us
to a command where we can't continue onwards, the changed error
message doesn't cause any security concerns.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190824172813.29720-3-eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
[eblake: fix iotest 233]
2019-09-05 15:57:37 -05:00
Eric Blake 61cc872456 nbd: Advertise multi-conn for shared read-only connections
The NBD specification defines NBD_FLAG_CAN_MULTI_CONN, which can be
advertised when the server promises cache consistency between
simultaneous clients (basically, rules that determine what FUA and
flush from one client are able to guarantee for reads from another
client).  When we don't permit simultaneous clients (such as qemu-nbd
without -e), the bit makes no sense; and for writable images, we
probably have a lot more work before we can declare that actions from
one client are cache-consistent with actions from another.  But for
read-only images, where flush isn't changing any data, we might as
well advertise multi-conn support.  What's more, advertisement of the
bit makes it easier for clients to determine if 'qemu-nbd -e' was in
use, where a second connection will succeed rather than hang until the
first client goes away.

This patch affects qemu as server in advertising the bit.  We may want
to consider patches to qemu as client to attempt parallel connections
for higher throughput by spreading the load over those connections
when a server advertises multi-conn, but for now sticking to one
connection per nbd:// BDS is okay.

See also: https://bugzilla.redhat.com/1708300
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190815185024.7010-1-eblake@redhat.com>
[eblake: tweak blockdev-nbd.c to not request shared when writable,
fix iotest 233]
Reviewed-by: John Snow <jsnow@redhat.com>
2019-09-05 15:51:55 -05:00
Nir Soffer 755c5fe79d iotests: Unify cache mode quoting
Quoting cache mode is not needed, and most tests use unquoted values.
Unify all test to use the same style.

Message-id: 20190827173432.7656-1-nsoffer@redhat.com
Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:56:06 +02:00
Thomas Huth 21b43d0048 iotests: Check for enabled drivers before testing them
It is possible to enable only a subset of the block drivers with the
"--block-drv-rw-whitelist" option of the "configure" script. All other
drivers are marked as unusable (or only included as read-only with the
"--block-drv-ro-whitelist" option). If an iotest is now using such a
disabled block driver, it is failing - which is bad, since at least the
tests in the "auto" group should be able to deal with this situation.
Thus let's introduce a "_require_drivers" function that can be used by
the shell tests to check for the availability of certain drivers first,
and marks the test as "not run" if one of the drivers is missing.

This patch mainly targets the test in the "auto" group which should
never fail in such a case, but also improves some of the other tests
along the way. Note that we also assume that the "qcow2" and "file"
drivers are always available - otherwise it does not make sense to
run "make check-block" at all (which only tests with qcow2 by default).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190823133552.11680-1-thuth@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:56:06 +02:00
Max Reitz 9da126fc2e iotests: Add -display none to the qemu options
Without this argument, qemu will print an angry message about not being
able to connect to a display server if $DISPLAY is not set.  For me,
that breaks iotests.supported_formats() because it thus only sees
["Could", "not", "connect"] as the supported formats.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190819201851.24418-2-mreitz@redhat.com
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:56:06 +02:00
Max Reitz 39af39c428 iotests: Disable 126 for flat vmdk subformats
iotest 126 requires backing file support, which flat vmdks cannot offer.
Skip this test for such subformats.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190815153638.4600-8-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Max Reitz c64c3ae35b iotests: Disable 110 for vmdk.twoGbMaxExtentSparse
The error message for the test case where we have a quorum node for
which no directory name can be generated is different: For
twoGbMaxExtentSparse, it complains that it cannot open the extent file.
For other (sub)formats, it just notes that it cannot determine the
backing file path.  Both are fine, but just disable twoGbMaxExtentSparse
for simplicity's sake.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190815153638.4600-7-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Max Reitz 325dd915b2 iotests: Disable broken streamOptimized tests
streamOptimized does not support writes that do not span exactly one
cluster.  Furthermore, it cannot rewrite already allocated clusters.
As such, many iotests do not work with it.  Disable them.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190815153638.4600-6-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Max Reitz 12b7cbcabc iotests: Keep testing broken relative extent paths
We had a test for a case where relative extent paths did not work, but
unfortunately we just fixed the underlying problem, so it works now.
This patch adds a new test case that still fails.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190815153638.4600-4-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Max Reitz cdc0dd2586 vmdk: Use bdrv_dirname() for relative extent paths
This makes iotest 033 pass with e.g. subformat=monolithicFlat.  It also
turns a former error in 059 into success.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190815153638.4600-3-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Max Reitz f158ffdba6 iotests: Fix _filter_img_create()
fe646693ac changed qemu-img create's output so that it no longer prints
single quotes around parameter values.  The subformat and adapter_type
filters in _filter_img_create() have never been adapted to that change.

Fixes: fe646693ac
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190815153638.4600-2-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Nir Soffer 7e3dc2ba9a iotests: Test allocate_first_block() with O_DIRECT
Using block_resize we can test allocate_first_block() with file
descriptor opened with O_DIRECT, ensuring that it works for any size
larger than 4096 bytes.

Testing smaller sizes is tricky as the result depends on the filesystem
used for testing. For example on NFS any size will work since O_DIRECT
does not require any alignment.

Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190827010528.8818-3-nsoffer@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Nir Soffer 3a20013fbb block: posix: Always allocate the first block
When creating an image with preallocation "off" or "falloc", the first
block of the image is typically not allocated. When using Gluster
storage backed by XFS filesystem, reading this block using direct I/O
succeeds regardless of request length, fooling alignment detection.

In this case we fallback to a safe value (4096) instead of the optimal
value (512), which may lead to unneeded data copying when aligning
requests.  Allocating the first block avoids the fallback.

Since we allocate the first block even with preallocation=off, we no
longer create images with zero disk size:

    $ ./qemu-img create -f raw test.raw 1g
    Formatting 'test.raw', fmt=raw size=1073741824

    $ ls -lhs test.raw
    4.0K -rw-r--r--. 1 nsoffer nsoffer 1.0G Aug 16 23:48 test.raw

And converting the image requires additional cluster:

    $ ./qemu-img measure -f raw -O qcow2 test.raw
    required size: 458752
    fully allocated size: 1074135040

When using format like vmdk with multiple files per image, we allocate
one block per file:

    $ ./qemu-img create -f vmdk -o subformat=twoGbMaxExtentFlat test.vmdk 4g
    Formatting 'test.vmdk', fmt=vmdk size=4294967296 compat6=off hwversion=undefined subformat=twoGbMaxExtentFlat

    $ ls -lhs test*.vmdk
    4.0K -rw-r--r--. 1 nsoffer nsoffer 2.0G Aug 27 03:23 test-f001.vmdk
    4.0K -rw-r--r--. 1 nsoffer nsoffer 2.0G Aug 27 03:23 test-f002.vmdk
    4.0K -rw-r--r--. 1 nsoffer nsoffer  353 Aug 27 03:23 test.vmdk

I did quick performance test for copying disks with qemu-img convert to
new raw target image to Gluster storage with sector size of 512 bytes:

    for i in $(seq 10); do
        rm -f dst.raw
        sleep 10
        time ./qemu-img convert -f raw -O raw -t none -T none src.raw dst.raw
    done

Here is a table comparing the total time spent:

Type    Before(s)   After(s)    Diff(%)
---------------------------------------
real      530.028    469.123      -11.4
user       17.204     10.768      -37.4
sys        17.881      7.011      -60.7

We can see very clear improvement in CPU usage.

Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Message-id: 20190827010528.8818-2-nsoffer@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:55:35 +02:00
Max Reitz 9c46f4a06d iotests: Fix 141 when run with qed
69f47505ee has changed qcow2 in such a way that the commit job run in
test 141 (and 144[1]) returns before it emits the READY event.  However,
141 also runs with qed, where the order is still the other way around.
Just filter out the {"return": {}} so the test passes for qed again.

[1] 144 only runs with qcow2, so it is fine as it is.

Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Fixes: 69f47505ee
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190809185253.17535-1-mreitz@redhat.com
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19 17:13:26 +02:00
Max Reitz 9463ee1f5f iotests: Full mirror to existing non-zero image
The result of a sync=full mirror should always be the equal to the
input.  Therefore, existing images should be treated as potentially
non-zero and thus should be explicitly initialized to be zero
beforehand.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190724171239.8764-12-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19 17:13:26 +02:00
Max Reitz c2acc95bef iotests: Test convert -n to pre-filled image
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190724171239.8764-11-mreitz@redhat.com
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19 17:13:26 +02:00
Max Reitz 5a840549ee iotests: Convert to preallocated encrypted qcow2
Add a test case for converting an empty image (which only returns zeroes
when read) to a preallocated encrypted qcow2 image.
qcow2_has_zero_init() should return 0 then, thus forcing qemu-img
convert to create zero clusters.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20190724171239.8764-10-mreitz@redhat.com
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19 17:13:26 +02:00
John Snow bd5ceebf6d iotests/257: test traditional sync modes
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-12-jsnow@redhat.com
[Edit 'Bitmap' --> 'bitmap' in 257.out --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 18:29:43 -04:00
John Snow 0fff1f1371 block/backup: improve sync=bitmap work estimates
When making backups based on bitmaps, the work estimate can be more
accurate. Update iotests to reflect the new strategy.

TOP work estimates are broken, but do not get worse with this commit.
That issue is addressed in the following commits instead.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-7-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:03 -04:00
John Snow 352092d382 iotests/257: test API failures
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-6-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:03 -04:00
John Snow 0af2a09c6b iotests/257: Refactor backup helpers
This test needs support for non-bitmap backups and missing or
unspecified bitmap sync modes, so rewrite the helpers to be a little
more generic.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-4-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:03 -04:00
John Snow 32afa5a1d4 iotests/257: add EmulatedBitmap class
Represent a bitmap with an object that we can mark and clear bits in.
This makes it easier to manage partial writes when we don't write a
full group's worth of patterns before an error.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:03 -04:00
John Snow b0a32bef7b iotests/257: add Pattern class
Just kidding, this is easier to manage with a full class instead of a
namedtuple.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:03 -04:00
Vladimir Sementsov-Ogievskiy 3f7b2fa8cd iotests: test bitmap moving inside 254
Test persistent bitmap copying with and without removal of original
bitmap.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190708220502.12977-4-jsnow@redhat.com
[Edited comment "bitmap1" --> "bitmap2" as per review. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:03 -04:00
John Snow dfdc48d5e2 iotests: add test 257 for bitmap-mode backups
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-18-jsnow@redhat.com
[Removed 'auto' group, as per new testing config guidelines --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
John Snow f357576fa9 iotests: Add virtio-scsi device helper
Seems that it comes up enough.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-17-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
John Snow de263986b5 iotests: teach FilePath to produce multiple paths
Use "FilePaths" instead of "FilePath" to request multiple files be
cleaned up after we leave that object's scope.

This is not crucial; but it saves a little typing.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-16-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
John Snow d443b74b3d iotests: teach run_job to cancel pending jobs
run_job can cancel pending jobs to simulate failure. This lets us use
the pending callback to issue test commands while the job is open, but
then still have the job fail in the end.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-15-jsnow@redhat.com
[Maintainer edit: Merge conflict resolution in run_job]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
John Snow 456a2d5ac7 iotests: add testing shim for script-style python tests
Because the new-style python tests don't use the iotests.main() test
launcher, we don't turn on the debugger logging for these scripts
when invoked via ./check -d.

Refactor the launcher shim into new and old style shims so that they
share environmental configuration.

Two cleanup notes: debug was not actually used as a global, and there
was no reason to create a class in an inner scope just to achieve
default variables; we can simply create an instance of the runner with
the values we want instead.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-14-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
Max Reitz 48057fc2b4 iotests: Add test for concurrent stream/commit
We already have 030 for that in general, but this tests very specific
cases of both jobs finishing concurrently.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-08-16 10:25:16 +02:00
Kevin Wolf 5b96e6a002 iotests: Test migration with all kinds of filter nodes
This test case is motivated by commit 2b23f28639 ('block/copy-on-read:
Fix permissions for inactive node'). Instead of just testing
copy-on-read on migration, let's stack all sorts of filter nodes on top
of each other and try if the resulting VM can still migrate
successfully. For good measure, put everything into an iothread, because
why not?

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-08-16 10:25:16 +02:00
Kevin Wolf 980448f17a iotests: Move migration helpers to iotests.py
234 implements functions that are useful for doing migration between two
VMs. Move them to iotests.py so that other test cases can use them, too.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-08-16 10:25:16 +02:00
Kevin Wolf 19462c4bdd iotests/118: Add -blockdev based tests
The code path for -device drive=<node-name> or without a drive=...
option for empty drives, which is supposed to be used with -blockdev
differs enough from the -drive based path with a user-owned
BlockBackend, so we want to test both paths at least for the basic tests
implemented by TestInitiallyFilled and TestInitiallyEmpty.

This would have caught the bug recently fixed for inserting read-only
nodes into a scsi-cd created without a drive=... option.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-08-16 10:25:16 +02:00
Kevin Wolf dfc828941c iotests/118: Create test classes dynamically
We're getting a ridiculous number of child classes of
TestInitiallyFilled and TestInitiallyEmpty that differ only in a few
attributes that we want to test in all combinations.

Instead of explicitly writing down every combination, let's use a loop
and create those classes dynamically.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-08-16 10:25:16 +02:00
Kevin Wolf dfa26a110c iotests/118: Test media change for scsi-cd
The test covered only floppy and ide-cd. Add scsi-cd as well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-08-16 10:25:16 +02:00
Max Reitz 19ba4651fe iotests: Test unaligned blocking mirror write
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190805113526.20319-1-mreitz@redhat.com
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-06 13:17:26 +02:00
Max Reitz 8a9cb86408 iotests: Test incremental backup after truncation
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190805152840.32190-1-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-06 13:17:24 +02:00
Max Reitz 5f594a2e99 iotests: Test backup job with two guest writes
Perform two guest writes to not yet backed up areas of an image, where
the former touches an inner area of the latter.

Before HEAD^, copy offloading broke this in two ways:
(1) The target image differs from the reference image (what the source
    was when the backup started).
(2) But you will not see that in the failing output, because the job
    offset is reported as being greater than the job length.  This is
    because one cluster is copied twice, and thus accounted for twice,
    but of course the job length does not increase.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190801173900.23851-3-mreitz@redhat.com
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-06 13:17:17 +02:00
Kevin Wolf 6817416014 iotests/118: Test inserting a read-only medium
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2019-07-30 17:32:01 +02:00
Andrey Shinkevich 251071e0c0 Fixes: add read-zeroes to 051.out
The patch "iotests: Set read-zeroes on in null block driver for Valgrind"
with the commit ID a6862418fe needs the change in 051.out when
compared against on the s390 system.

Fixes: a6862418fe
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-07-30 12:25:43 +02:00
Thomas Huth 30edd9fa50 tests/qemu-iotests: Don't use 'seq' in the iotests
The 'seq' command is not available by default on OpenBSD, so these
iotests are currently failing there. It could be installed as 'gseq'
from the coreutils package - but since it is using a different name
there and we are running the iotests with the "bash" shell anyway,
let's simply use the built-in double parentheses for the for-loops
instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190723111201.1926-1-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-07-23 15:53:25 +01:00
Thomas Huth 4f01046172 tests/qemu-iotests/group: Remove some more tests from the "auto" group
Remove some more tests from the "auto" group that either have issues
in certain environments (like macOS or FreeBSD, or on certain file systems
like ZFS or tmpfs), do not work with the qcow2 format, or that are simply
taking too much time.

Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190717111947.30356-3-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-07-23 15:53:25 +01:00
Thomas Huth bf75d75275 tests/qemu-iotests/check: Allow tests without groups
The regular expressions in the "check" script currently expect that there
is always a space after the test number in the group file, so you can't
have a test in there without a group unless the line still ends with a
space - which is quite error prone since some editors might remove spaces
at the end of lines automatically.
Thus let's fix the regular expressions so that it is also possible to
have lines with one test number only in the group file.

Suggested-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190717111947.30356-2-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-07-23 15:53:25 +01:00
Max Reitz 49278ec065 iotests: Test quitting with job on throttled node
When qemu quits, all throttling should be ignored.  That means, if there
is a mirror job running from a throttled node, it should be cancelled
immediately and qemu close without blocking.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-07-19 15:17:55 +02:00
Max Reitz 86472071f4 iotests: Test commit with a filter on the chain
Before the previous patches, the first case resulted in a failed
assertion (which is noted as qemu receiving a SIGABRT in the test
output), and the second usually triggered a segmentation fault.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-07-19 13:19:17 +02:00
Max Reitz 4687133b81 iotests: Add @has_quit to vm.shutdown()
If a test has issued a quit command already (which may be useful to do
explicitly because the test wants to show its effects),
QEMUMachine.shutdown() should not do so again.  Otherwise, the VM may
well return an ECONNRESET which will lead QEMUMachine.shutdown() to
killing it, which then turns into a "qemu received signal 9" line.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-07-19 13:19:17 +02:00
Andrey Shinkevich a6862418fe iotests: Set read-zeroes on in null block driver for Valgrind
The Valgrind tool reports about the uninitialised buffer 'buf'
instantiated on the stack of the function guess_disk_lchs().
Pass 'read-zeroes=on' to the null block driver to make it deterministic.
The output of the tests 051, 186 and 227 now includes the parameter
'read-zeroes'. So, the benchmark output files are being changed too.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-07-19 13:19:09 +02:00
Max Reitz 0e4a0644bf iotests: Add read-only test case to 030
This tests that the stream job exits cleanly (without abort) when the
top node is read-only and cannot be reopened read/write.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190703172813.6868-12-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-07-15 15:48:40 +02:00
Max Reitz 13658cd70b iotests: Add new case to 030
We recently removed the dependency of the stream job on its base node.
That makes it OK to use a commit filter node there.  Test that.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Tested-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 20190703172813.6868-11-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-07-15 15:48:40 +02:00