Commit Graph

1347 Commits

Author SHA1 Message Date
John Snow
ba7704f222 iotests: add iotest 256 for testing blockdev-backup across iothread contexts
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20190523170643.20794-6-jsnow@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
[mreitz: Moved from 250 to 256]
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-06-14 14:16:57 +02:00
John Snow
d6a79af0e6 iotests.py: rewrite run_job to be pickier
Don't pull events out of the queue that don't belong to us;
be choosier so that we can use this method to drive jobs that
were launched by transactions that may have more jobs.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20190523170643.20794-5-jsnow@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-06-14 14:16:57 +02:00
John Snow
8b6f5f8b9f iotests.py: do not use infinite waits
Cap waits to 60 seconds so that iotests can fail gracefully if something
goes wrong.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20190523170643.20794-3-jsnow@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-06-14 14:16:57 +02:00
Max Reitz
b28f582c2a iotests: Let 233 run concurrently
common.nbd's nbd_server_set_tcp_port() tries to find a free port, and
then uses it for the whole test run.  However, this is racy because even
if the port was free at the beginning, there is no guarantee it will
continue to be available.  Therefore, 233 currently cannot reliably be
run concurrently with other NBD TCP tests.

This patch addresses the problem by dropping nbd_server_set_tcp_port(),
and instead finding a new port every time nbd_server_start_tcp_socket()
is invoked.  For this, we run qemu-nbd with --fork and on error evaluate
the output to see whether it contains "Address already in use".  If so,
we try the next port.

On success, we still want to continually redirect the output from
qemu-nbd to stderr.  To achieve both, we redirect qemu-nbd's stderr to a
FIFO that we then open in bash.  If the parent process exits with status
0 (which means that the server has started successfully), we launch a
background cat process that copies the FIFO to stderr.  On failure, we
read the whole content into a variable and then evaluate it.

While at it, use --fork in nbd_server_start_unix_socket(), too.  Doing
so allows us to drop nbd_server_wait_for_*_socket().

Note that the reason common.nbd did not use --fork before is that
qemu-nbd did not have --pid-file.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190508211820.17851-6-mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-06-13 08:50:47 -05:00
Max Reitz
4718360a58 iotests: Use qemu-nbd's --pid-file
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20190508211820.17851-5-mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-06-13 08:50:47 -05:00
Max Reitz
6177b58431 iotests.py: Add qemu_nbd_early_pipe()
qemu_nbd_pipe() currently unconditionally reads qemu-nbd's output.  That
is not ideal because qemu-nbd may keep stderr open after the parent
process has exited.

Currently, the only user of qemu_nbd_pipe() is 147, which discards the
whole output if the parent process returned success and only evaluates
it on error.  Therefore, we can replace qemu_nbd_pipe() by
qemu_nbd_early_pipe() that does the same: Discard the output on success,
and return it on error.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190508211820.17851-3-mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-06-13 08:50:47 -05:00
Kevin Wolf
11ba81c3cd iotests: Fix duplicated diff output on failure
Commit 70ff5b07 wanted to move the diff between actual and reference
output to the end after printing the test result line. It really only
copied it, though, so the diff is now displayed twice. Remove the old
one.

Fixes: 70ff5b07fc
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 16:55:58 +02:00
Vladimir Sementsov-Ogievskiy
3dd3e248eb iotests: test big qcow2 shrink
This test checks bug in qcow2_process_discards, fixed by previous
commit.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 16:55:58 +02:00
Kevin Wolf
6c8705351e iotests: Attach new devices to node in non-default iothread
This tests that devices refuse to be attached to a node that has already
been moved to a different iothread if they can't be or aren't configured
to work in the same iothread.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 16:55:58 +02:00
Kevin Wolf
4f71fb436a scsi-disk: Use qdev_prop_drive_iothread
This makes use of qdev_prop_drive_iothread for scsi-disk so that the
disk can be attached to a node that is already in the target AioContext.
We need to check that the HBA actually supports iothreads, otherwise
scsi-disk must make sure that the node is already in the main
AioContext.

This changes the error message for conflicting iothread settings.
Previously, virtio-scsi produced the error message, now it comes from
blk_set_aio_context(). Update a test case accordingly.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 15:22:22 +02:00
Kevin Wolf
45e92a9011 nbd-server: Call blk_set_allow_aio_context_change()
The NBD server uses an AioContext notifier, so it can tolerate that its
BlockBackend is switched to a different AioContext. Before we start
actually calling bdrv_try_set_aio_context(), which checks for
consistency, outside of test cases, we need to make sure that the NBD
server actually allows this.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-06-04 15:22:22 +02:00
Max Reitz
74f27eadea iotests: Test cancelling a job and closing the VM
This patch adds a test where we cancel a throttled mirror job and
immediately close the VM before it can be cancelled.  Doing so will
invoke bdrv_drain_all() while the mirror job tries to drain the
throttled node.  When bdrv_drain_all_end() tries to lift its drain on
the throttle node, the job will exit and replace the current root node
of the BB drive0 (which is the job's filter node) by the throttle node.
Before the previous patch, this replacement did not increase drive0's
quiesce_counter by a sufficient amount, so when
bdrv_parent_drained_end() (invoked by bdrv_do_drained_end(), invoked by
bdrv_drain_all_end()) tried to end the drain on all of the throttle
node's parents, it decreased drive0's quiesce_counter below 0 -- which
fails an assertion.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 15:20:41 +02:00
Vladimir Sementsov-Ogievskiy
69f47505ee block: avoid recursive block_status call if possible
drv_co_block_status digs bs->file for additional, more accurate search
for hole inside region, reported as DATA by bs since 5daa74a6eb.

This accuracy is not free: assume we have qcow2 disk. Actually, qcow2
knows, where are holes and where is data. But every block_status
request calls lseek additionally. Assume a big disk, full of
data, in any iterative copying block job (or img convert) we'll call
lseek(HOLE) on every iteration, and each of these lseeks will have to
iterate through all metadata up to the end of file. It's obviously
ineffective behavior. And for many scenarios we don't need this lseek
at all.

However, lseek is needed when we have metadata-preallocated image.

So, let's detect metadata-preallocation case and don't dig qcow2's
protocol file in other cases.

The idea is to compare allocation size in POV of filesystem with
allocations size in POV of Qcow2 (by refcounts). If allocation in fs is
significantly lower, consider it as metadata-preallocation case.

102 iotest changed, as our detector can't detect shrinked file as
metadata-preallocation, which don't seem to be wrong, as with metadata
preallocation we always have valid file length.

Two other iotests have a slight change in their QMP output sequence:
Active 'block-commit' returns earlier because the job coroutine yields
earlier on a blocking operation. This operation is loading the refcount
blocks in qcow2_detect_metadata_preallocation().

Suggested-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 15:20:41 +02:00
Kevin Wolf
ac6fb43eae iotests: Test commit job start with concurrent I/O
This tests that concurrent requests are correctly drained before making
graph modifications instead of running into assertions in
bdrv_replace_node().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-06-04 15:20:41 +02:00
Peter Maydell
62f6849e7a Pull request
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Merge remote-tracking branch 'remotes/jnsnow/tags/bitmaps-pull-request' into staging

Pull request

# gpg: Signature made Wed 29 May 2019 00:58:33 BST
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jnsnow/tags/bitmaps-pull-request:
  iotests: test external snapshot with bitmap copying
  qapi: support external bitmaps in block-dirty-bitmap-merge
  migration/dirty-bitmaps: change bitmap enumeration method

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-30 12:10:27 +01:00
Vladimir Sementsov-Ogievskiy
403bb8185e iotests: test external snapshot with bitmap copying
This test shows that external snapshots and incremental backups are
friends.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190517152111.206494-3-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-05-28 19:33:31 -04:00
John Snow
a2d665c1bc blockdev: loosen restrictions on drive-backup source node
We mandate that the source node must be a root node; but there's no reason
I am aware of that it needs to be restricted to such. In some cases, we need
to make sure that there's a medium present, but in the general case we can
allow the backup job itself to do the graph checking.

This patch helps improve the error message when you try to backup from
the same node more than once, which is reflected in the change to test
056.

For backups with bitmaps, it will also show a better error message that
the bitmap is in use instead of giving you something cryptic like "need
a root node."

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1707303
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20190521210053.8864-1-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-05-28 20:30:55 +02:00
Anton Nefedov
c8bb23cbdb qcow2: skip writing zero buffers to empty COW areas
If COW areas of the newly allocated clusters are zeroes on the backing
image, efficient bdrv_write_zeroes(flags=BDRV_REQ_NO_FALLBACK) can be
used on the whole cluster instead of writing explicit zero buffers later
in perform_cow().

iotest 060:
write to the discarded cluster does not trigger COW anymore.
Use a backing image instead.

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Message-id: 20190516142749.81019-2-anton.nefedov@virtuozzo.com
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-05-28 20:30:55 +02:00
Alex Bennée
70ff5b07fc tests/qemu-iotests: re-format output to for make check-block
This attempts to clean-up the output to better match the output of the
rest of the QEMU check system when called with -makecheck. This includes:

  - formatting as "  TEST    iotest-FMT: nnn"
  - only dumping config on failure (when -makecheck enabled)

The non-make check output has been cleaned up as well:

  - line re-displayed (\r) at the end
  - fancy colours for pass/fail/skip
  - timestamps always printed (option removed)

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190503143904.31211-1-alex.bennee@linaro.org>
Tested-by: Thomas Huth <thuth@redhat.com>
2019-05-28 10:28:51 +01:00
Thomas Huth
d4271ce5b5 tests/qemu-iotests/group: Re-use the "auto" group for tests that can always run
Currently, all tests are in the "auto" group. This is a little bit pointless.
OTOH, we need a group for the tests that we can automatically run during
"make check" each time, too. Tests in this new group are supposed to run
with every possible QEMU configuration, for example they must run with every
QEMU binary (also non-x86), without failing when an optional features is
missing (but reporting "skip" is ok), and be able to run on all kind of host
filesystems and users (i.e. also as "nobody" or "root").
So let's use the "auto" group for this class of tests now. The initial
list has been determined by running the iotests with non-x86 QEMU targets
and with our CI pipelines on Gitlab, Cirrus-CI and Travis (i.e. including
macOS and FreeBSD).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190502084506.8009-7-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-05-28 10:28:51 +01:00
Thomas Huth
b3763a195c tests/qemu-iotests: Remove the "_supported_os Linux" line from many tests
A lot of tests run fine on FreeBSD and macOS, too - the limitation
to Linux here was likely just copied-and-pasted from other tests.
Thus remove the "_supported_os Linux" line from tests that run
successful in our CI pipelines on FreeBSD and macOS.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20190502084506.8009-6-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-05-21 10:13:58 +02:00
Thomas Huth
f3d07ce8f4 tests/qemu-iotests: Do not hard-code the path to bash
bash is installed in a different directory on non-Linux systems like
FreeBSD. Do not hard-code /bin/bash here so that the tests can run
there, too.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20190502084506.8009-4-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-05-21 10:10:33 +02:00
Thomas Huth
4a715461c8 tests/qemu-iotests/check: Pick a default machine if necessary
qemu-system-arm, qemu-system-aarch64 and qemu-system-tricore do not have
a default machine, so when running the qemu-iotests with such a binary,
lots of tests are failing. Fix it by picking a default machine in the
"check" script instead.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20190502084506.8009-3-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-05-21 10:07:29 +02:00
Thomas Huth
b807a99369 tests/qemu-iotests/005: Add a sanity check for large sparse file support
"check -raw 005" fails when running on certain filesystems - these do not
support such large sparse files. Use the same check as in test 220 to
skip the test in this case.

Suggested-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190502084506.8009-2-thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-05-21 10:05:21 +02:00
Max Reitz
c423a6af59 iotests: Make 245 faster and more reliable
Sometimes, 245 fails for me because some stream job has already finished
while the test expects it to still be active.  (With -c none, it fails
basically every time.) The most reliable way to fix this is to simply
set auto_finalize=false so the job will remain in the block graph as
long as we need it.  This allows us to drop the rate limiting, too,
which makes the test faster.

The only problem with this is that there is a single place that yields a
different error message depending on whether the stream job is still
copying data (so COR is enabled) or not (COR has been disabled, but the
job still has the WRITE_UNCHANGED permission on the target node).  We
can easily address that by expecting either error message.

Note that we do not need auto_finalize=false (or rate limiting) for the
active commit job, because It never completes without an explicit
block-job-complete anyway.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-20 17:08:57 +02:00
Max Reitz
86a4f599a6 iotests.py: Fix VM.run_job
log() is in the current module, there is no need to prefix it.  In fact,
doing so may make VM.run_job() unusable in tests that never use
iotests.log() themselves.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-20 17:08:57 +02:00
Max Reitz
a93a42bd91 iotests.py: Let assert_qmp() accept an array
Sometimes we cannot tell which error message qemu will emit, and we do
not care.  With this change, we can then just pass an array of all
possible messages to assert_qmp() and it will choose the right one.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-20 17:08:57 +02:00
Max Reitz
2fab30c80b iotests: Test unaligned raw images with O_DIRECT
We already have 221 for accesses through the page cache, but it is
better to create a new file for O_DIRECT instead of integrating those
test cases into 221.  This way, we can make use of
_supported_cache_modes (and _default_cache_mode) so the test is
automatically skipped on filesystems that do not support O_DIRECT.

As part of the split, add _supported_cache_modes to 221.  With that, it
no longer fails when run with -c none or -c directsync.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-20 17:08:57 +02:00
Vladimir Sementsov-Ogievskiy
832d78caa5 iotest: fix 169: do not run qmp_cont in RUN_STATE_FINISH_MIGRATE
qmp_cont fails if vm in RUN_STATE_FINISH_MIGRATE, so let's wait for
final RUN_STATE_POSTMIGRATE. Also, while being here, check qmp_cont
result.

Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-20 17:08:56 +02:00
Max Reitz
11f6fc50e7 iotests: Add test for rebase without input base
This patch adds a test for rebasing an image that currently does not
have a backing file.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-10 16:45:40 +02:00
Kevin Wolf
4d231a384c qemu-iotests: Fix cleanup for 192
Test case 192 calls _launch_qemu, so it also needs to _cleanup_qemu when
it's done, otherwise the QMP FIFOs stay around in scratch/. It also
creates a temporary NBD socket that needs to be removed as well at the
end of the test case.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
2019-05-10 16:45:40 +02:00
Peter Maydell
812b835fb4 Block patches:
- Fixes to qcow2's implementation of qemu-img check
 - Our SSH driver now supports bdrv_refresh_filename()
 - Miscellaneous fixes
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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2019-05-07' into staging

Block patches:
- Fixes to qcow2's implementation of qemu-img check
- Our SSH driver now supports bdrv_refresh_filename()
- Miscellaneous fixes

# gpg: Signature made Tue 07 May 2019 16:16:58 BST
# gpg:                using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2019-05-07:
  iotests: Fix iotests 110 and 126
  commit: Use bdrv_append() in commit_start()
  block: Assert that drv->bdrv_child_perm is set in bdrv_child_perm()
  block/ssh: Implement .bdrv_dirname()
  block/ssh: Implement .bdrv_refresh_filename()
  qcow2: discard bitmap when removed
  qcow2-refcount: don't mask corruptions under internal errors
  qcow2-refcount: check_refcounts_l2: don't count fixed cluster as allocated
  qcow2-refcount: check_refcounts_l2: reduce ignored overlaps
  qcow2-refcount: avoid eating RAM
  qcow2-refcount: fix check_oflag_copied

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-09 16:31:12 +01:00
Max Reitz
1278dce792 iotests: Fix iotests 110 and 126
A recent patch results in qemu-img reporting the backing file format of
vmdk images as vmdk.  This broke iotests 110 and 126.

Fixes: 7502be838e
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190415154129.31021-1-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-05-07 17:14:21 +02:00
Max Reitz
b8c1f90118 block/ssh: Implement .bdrv_refresh_filename()
This requires some changes to keep iotests 104 and 207 working.

qemu-img info in 104 will now return a filename including the user name
and the port, which need to be filtered by adjusting REMOTE_TEST_DIR in
common.rc.  This additional information has to be marked optional,
however (which is simple as REMOTE_TEST_DIR is a regex), because
otherwise 197 and 215 would fail: They use it (indirectly) to filter
qemu-img create output which contains a backing filename they have
passed to it -- which probably does not contain a user name or port
number.

The problem in 207 is a nice one to have: qemu-img info used to return
json:{} filenames, but with this patch it returns nice plain ones.  We
now need to adjust the filtering to hide the user name (and port number
while we are at it).  The simplest way to do this is to include both in
iotests.remote_filename() so that bdrv_refresh_filename() will not
change it, and then iotests.img_info_log() will filter it correctly
automatically.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Message-id: 20190225190828.17726-2-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-05-07 17:14:21 +02:00
Vladimir Sementsov-Ogievskiy
a5fff8d4b4 qcow2-refcount: avoid eating RAM
qcow2_inc_refcounts_imrt() (through realloc_refcount_array()) can eat
an unpredictable amount of memory on corrupted table entries, which are
referencing regions far beyond the end of file.

Prevent this, by skipping such regions from further processing.

Interesting that iotest 138 checks exactly the behavior which we fix
here. So, change the test appropriately.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190227131433.197063-3-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-05-07 17:14:21 +02:00
Max Reitz
8fabb8be37 iotests: Make 182 do without device_add
182 fails if qemu has no support for hotplugging of a virtio-blk device.
Using an NBD server instead works just as well for the test, even on
qemus without hotplugging support.

Fixes: 6d0a4a0fb5
Reported-by: Danilo C. L. de Paula <ddepaula@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20190417153005.30096-1-mreitz@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-05-07 09:43:42 -05:00
Eric Blake
d3192de752 iotests: Tweak 221 sizing for different hole granularities
For some particular configurations of ext4, sizing an image to 84
sectors + 1 byte causes test failures when the size of the hole is
rounded to a 4k alignment. Let's instead size things to 128 sectors +
1 byte, as the 64k boundary is more likely to work with various hole
granularities.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190506172111.31594-1-eblake@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
2019-05-07 09:43:42 -05:00
Thomas Huth
e74ee02c1e tests/qemu-iotests: Fix more reference output files due to recent qemu-io change
The output of qemu-io changed recently - most tests have been fixed in
commit 36b9986b08 ("tests/qemu-iotests: Fix output of qemu-io
related tests") already, but a qcow1, vmdk, and nbd test were still missing.

Fixes: 99e98d7c9f ("qemu-io: Use error_[gs]et_progname()")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190501134127.21104-1-thuth@redhat.com>
[eblake: squash in NBD 083 fixes]
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-05-07 09:43:42 -05:00
Max Reitz
876df72d75 iotests: Fix 233 for ports other than 10809
233 generally filters the port, but in two cases does not.  If some
other concurrently running application has already taken port 10809,
this will result in an output mismatch.  Fix this by applying the
filter in these two cases, too.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20190506160529.6955-1-mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-05-07 09:43:42 -05:00
Alberto Garcia
a2aa8b07cd iotests: Check that images are in read-only mode after block-commit
This tests the fix from the previous patch.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-30 15:29:00 +02:00
Max Reitz
f4619af0c1 qemu-img: Make create hint at protocol options
qemu-img create allows giving just a format and "-o help" to get a list
of the options supported by that format.  Users may not realize that the
protocol level may offer even more options, which they only get to see
by specifying a filename.

This patch adds a note to hint at that fact.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-30 15:29:00 +02:00
Max Reitz
0ef5a8e6ce iotests: Perform the correct test in 082
In the "amend" section of 082, we perform a single "convert" test
(namely "convert -o help").  That does not make sense, especially
because we have done exactly that "convert" test earlier in 082 already.

Replacing "convert" by "amend" yields an error, which is correct because
there is no point in "amend" having a default format.  The user has to
either specify the format, or give a file for qemu-img to probe.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-30 15:29:00 +02:00
Eric Blake
de38b5005e qemu-img: Saner printing of large file sizes
Disk sizes close to INT64_MAX cause overflow, for some pretty
ridiculous output:

  $ ./nbdkit -U - memory size=$((2**63 - 512)) --run 'qemu-img info $nbd'
  image: nbd+unix://?socket=/tmp/nbdkitHSAzNz/socket
  file format: raw
  virtual size: -8388607T (9223372036854775296 bytes)
  disk size: unavailable

But there's no reason to have two separate implementations of integer
to human-readable abbreviation, where one has overflow and stops at
'T', while the other avoids overflow and goes all the way to 'E'. With
this patch, the output now claims 8EiB instead of -8388607T, which
really is the correct rounding of largest file size supported by qemu
(we could go 511 bytes larger if we used byte-accurate sizing instead
of rounding up to the next sector boundary, but that wouldn't change
the human-readable result).

Quite a few iotests need updates to expected output to match.

Reported-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Tested-by: Max Reitz <mreitz@redhat.com>
2019-04-30 15:29:00 +02:00
Thomas Huth
36b9986b08 tests/qemu-iotests: Fix output of qemu-io related tests
One of the recent commits changed the way qemu-io prints out its
errors and warnings - they are now prefixed with the program name.
We've got to adapt the iotests accordingly to prevent that they
are failing.

Fixes: 99e98d7c9f ("qemu-io: Use error_[gs]et_progname()")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-30 15:29:00 +02:00
Eric Blake
9749636b00 iotest: Fix 241 to run in generic directory
Filter the qemu-nbd server output to get rid of a direct reference
to my build directory.

Fixes: e9dce9cb
Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-12 18:03:01 +02:00
Max Reitz
23e1d05411 iotests: Let 245 pass on tmpfs
tmpfs does not support O_DIRECT.  Detect this case, and skip flipping
@direct if the filesystem does not support it.

Fixes: bf3e50f623
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-12 18:03:01 +02:00
Thomas Huth
f18957b854 tests/qemu-iotests/235: Allow fallback to tcg
iotest 235 currently only works with KVM - this is bad for systems where
it is not available, e.g. CI pipelines. The test also works when using
"tcg" as accelerator, so we can simply add that to the list of accelerators,
too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-02 12:04:56 +02:00
Alberto Garcia
d20ba603f2 block: test block-stream with a base node that is used by block-commit
The base node of a block-stream operation indicates the first image
from the backing chain starting from which no data is copied to the
top node.

The block-stream job allows others to use that base image, so a second
block-stream job could be writing to it at the same time. An important
restriction is that the base image must not disappear while the stream
job is ongoing. stream_start() freezes the backing chain from top to
base with that purpose but it does it too late in the code so there is
a race condition there.

This bug was fixed in the previous commit, and this patch contains an
iotest for this scenario.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-02 12:04:44 +02:00
Thomas Huth
38e694fcc9 tests/qemu-iotests: Remove redundant COPYING file
The file tests/qemu-iotests/COPYING is the same text as in the
COPYING file in the main directory. So as far as I can see, we don't
need the duplicate here.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-02 12:04:44 +02:00
Thomas Huth
e0a59749ef iotests: Fix test 200 on s390x without virtio-pci
virtio-pci is optional on s390x, e.g. in downstream RHEL builds, it
is disabled. On s390x, virtio-ccw should be used instead. Other tests
like 051 or 240 already use virtio-scsi-ccw instead of virtio-scsi-pci
on s390x, so let's do the same here and always use virtio-scsi-ccw on
s390x.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-04-02 12:04:44 +02:00