Block patches

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Merge remote-tracking branch 'mreitz/tags/pull-block-2018-03-09' into queue-block

Block patches

# gpg: Signature made Fri Mar  9 15:40:32 2018 CET
# gpg:                using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* mreitz/tags/pull-block-2018-03-09:
  qemu-iotests: fix 203 migration completion race
  iotests: Tweak 030 in order to trigger a race condition with parallel jobs
  iotests: Skip test for ENOMEM error
  iotests: Mark all tests executable
  iotests: Test creating overlay when guest running

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2018-03-09 16:09:06 +01:00
commit a1be5921e3
17 changed files with 72 additions and 24 deletions

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@ -156,7 +156,7 @@ class TestSingleDrive(iotests.QMPTestCase):
class TestParallelOps(iotests.QMPTestCase):
num_ops = 4 # Number of parallel block-stream operations
num_imgs = num_ops * 2 + 1
image_len = num_ops * 1024 * 1024
image_len = num_ops * 512 * 1024
imgs = []
def setUp(self):
@ -176,14 +176,14 @@ class TestParallelOps(iotests.QMPTestCase):
'-o', 'backing_file=%s' % self.imgs[i-1], self.imgs[i])
# Put data into the images we are copying data from
for i in range(self.num_imgs / 2):
img_index = i * 2 + 1
# Alternate between 512k and 1M.
odd_img_indexes = [x for x in reversed(range(self.num_imgs)) if x % 2 == 1]
for i in range(len(odd_img_indexes)):
# Alternate between 256KB and 512KB.
# This way jobs will not finish in the same order they were created
num_kb = 512 + 512 * (i % 2)
num_kb = 256 + 256 * (i % 2)
qemu_io('-f', iotests.imgfmt,
'-c', 'write -P %d %d %d' % (i, i*1024*1024, num_kb * 1024),
self.imgs[img_index])
'-c', 'write -P 0xFF %dk %dk' % (i * 512, num_kb),
self.imgs[odd_img_indexes[i]])
# Attach the drive to the VM
self.vm = iotests.VM()
@ -318,12 +318,14 @@ class TestParallelOps(iotests.QMPTestCase):
self.wait_until_completed(drive='commit-drive0')
# Test a block-stream and a block-commit job in parallel
def test_stream_commit(self):
# Here the stream job is supposed to finish quickly in order to reproduce
# the scenario that triggers the bug fixed in 3d5d319e1221 and 1a63a907507
def test_stream_commit_1(self):
self.assertLessEqual(8, self.num_imgs)
self.assert_no_active_block_jobs()
# Stream from node0 into node2
result = self.vm.qmp('block-stream', device='node2', job_id='node2')
result = self.vm.qmp('block-stream', device='node2', base_node='node0', job_id='node2')
self.assert_qmp(result, 'return', {})
# Commit from the active layer into node3
@ -348,6 +350,38 @@ class TestParallelOps(iotests.QMPTestCase):
self.assert_no_active_block_jobs()
# This is similar to test_stream_commit_1 but both jobs are slowed
# down so they can run in parallel for a little while.
def test_stream_commit_2(self):
self.assertLessEqual(8, self.num_imgs)
self.assert_no_active_block_jobs()
# Stream from node0 into node4
result = self.vm.qmp('block-stream', device='node4', base_node='node0', job_id='node4', speed=1024*1024)
self.assert_qmp(result, 'return', {})
# Commit from the active layer into node5
result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[5], speed=1024*1024)
self.assert_qmp(result, 'return', {})
# Wait for all jobs to be finished.
pending_jobs = ['node4', 'drive0']
while len(pending_jobs) > 0:
for event in self.vm.get_qmp_events(wait=True):
if event['event'] == 'BLOCK_JOB_COMPLETED':
node_name = self.dictpath(event, 'data/device')
self.assertTrue(node_name in pending_jobs)
self.assert_qmp_absent(event, 'data/error')
pending_jobs.remove(node_name)
if event['event'] == 'BLOCK_JOB_READY':
self.assert_qmp(event, 'data/device', 'drive0')
self.assert_qmp(event, 'data/type', 'commit')
self.assert_qmp_absent(event, 'data/error')
self.assertTrue('drive0' in pending_jobs)
self.vm.qmp('block-job-complete', device='drive0')
self.assert_no_active_block_jobs()
# Test the base_node parameter
def test_stream_base_node_name(self):
self.assert_no_active_block_jobs()

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@ -1,5 +1,5 @@
.......................
........................
----------------------------------------------------------------------
Ran 23 tests
Ran 24 tests
OK

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@ -152,9 +152,8 @@ done
echo
echo "=== Testing afl image with a very large capacity ==="
_use_sample_img afl9.vmdk.bz2
# The sed makes this test pass on machines with little RAM
# (and also with 32 bit builds)
_img_info | sed -e 's/Cannot allocate memory/Invalid argument/'
_img_info | grep -q 'Cannot allocate memory' && _notrun "Insufficent memory, skipped test"
_img_info
_cleanup_test_img
# success, all done

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@ -32,6 +32,7 @@ _cleanup()
{
_cleanup_test_img
rm -f "${TEST_IMG}.base"
rm -f "${TEST_IMG}.overlay"
rm -f "${TEST_IMG}.convert"
rm -f "${TEST_IMG}.a"
rm -f "${TEST_IMG}.b"
@ -177,8 +178,6 @@ rm -f "${TEST_IMG}.lnk" &>/dev/null
ln -s ${TEST_IMG} "${TEST_IMG}.lnk" || echo "Failed to create link"
_run_qemu_with_images "${TEST_IMG}.lnk" "${TEST_IMG}"
echo
echo "== Closing an image should unlock it =="
_launch_qemu
_send_qemu_cmd $QEMU_HANDLE \
@ -193,7 +192,10 @@ _send_qemu_cmd $QEMU_HANDLE \
_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
echo "Closing drive"
echo "Creating overlay with qemu-img when the guest is running should be allowed"
_run_cmd $QEMU_IMG create -f $IMGFMT -b "${TEST_IMG}" "${TEST_IMG}.overlay"
echo "== Closing an image should unlock it =="
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'human-monitor-command',
'arguments': { 'command-line': 'drive_del d0' } }" \

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@ -372,15 +372,16 @@ Is another process using the image?
== Symbolic link ==
QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image?
== Closing an image should unlock it ==
{"return": {}}
Adding drive
_qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image?
Closing drive
Creating overlay with qemu-img when the guest is running should be allowed
_qemu_img_wrapper create -f qcow2 -b TEST_DIR/t.qcow2 TEST_DIR/t.qcow2.overlay
== Closing an image should unlock it ==
_qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
Adding two and closing one

0
tests/qemu-iotests/163 Normal file → Executable file
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@ -49,11 +49,18 @@ with iotests.FilePath('disk0.img') as disk0_img_path, \
node_name='drive1-node', iothread='iothread0',
force=True))
iotests.log('Enabling migration QMP events...')
iotests.log(vm.qmp('migrate-set-capabilities', capabilities=[
{
'capability': 'events',
'state': True
}
]))
iotests.log('Starting migration...')
iotests.log(vm.qmp('migrate', uri='exec:cat >/dev/null'))
while True:
vm.get_qmp_event(wait=60.0)
result = vm.qmp('query-migrate')
status = result.get('return', {}).get('status', None)
if status == 'completed':
event = vm.event_wait('MIGRATION')
iotests.log(event, filters=[iotests.filter_qmp_event])
if event['data']['status'] == 'completed':
break

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@ -2,5 +2,10 @@ Launching VM...
Setting IOThreads...
{u'return': {}}
{u'return': {}}
Enabling migration QMP events...
{u'return': {}}
Starting migration...
{u'return': {}}
{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'setup'}, u'event': u'MIGRATION'}
{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'active'}, u'event': u'MIGRATION'}
{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'completed'}, u'event': u'MIGRATION'}

0
tests/qemu-iotests/205 Normal file → Executable file
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