diff mbox series

[PULL,07/10] iotests: copy-before-write: add cases for cbw-timeout option

Message ID 20220614102910.1431380-8-vsementsov@yandex-team.ru
State New
Headers show
Series [PULL,01/10] block/copy-before-write: refactor option parsing | expand

Commit Message

Vladimir Sementsov-Ogievskiy June 14, 2022, 10:29 a.m. UTC
From: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>

Add two simple test-cases: timeout failure with
break-snapshot-on-cbw-error behavior and similar with
break-guest-write-on-cbw-error behavior.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
---
 tests/qemu-iotests/tests/copy-before-write    | 81 +++++++++++++++++++
 .../qemu-iotests/tests/copy-before-write.out  |  4 +-
 2 files changed, 83 insertions(+), 2 deletions(-)

Comments

Thomas Huth July 5, 2022, 9:03 a.m. UTC | #1
On 14/06/2022 12.29, Vladimir Sementsov-Ogievskiy wrote:
> From: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
> 
> Add two simple test-cases: timeout failure with
> break-snapshot-on-cbw-error behavior and similar with
> break-guest-write-on-cbw-error behavior.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
> Reviewed-by: Hanna Reitz <hreitz@redhat.com>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
> ---
>   tests/qemu-iotests/tests/copy-before-write    | 81 +++++++++++++++++++
>   .../qemu-iotests/tests/copy-before-write.out  |  4 +-
>   2 files changed, 83 insertions(+), 2 deletions(-)

  Hi!

Seems like this test is failing in the CI on FreeBSD and macOS:

  https://gitlab.com/qemu-project/qemu/-/jobs/2670729995#L5763
  https://gitlab.com/qemu-project/qemu/-/jobs/2670729993#L3247

Could you please have a look?

  Thanks,
   Thomas
Vladimir Sementsov-Ogievskiy July 5, 2022, 9:44 a.m. UTC | #2
On 7/5/22 12:03, Thomas Huth wrote:
> On 14/06/2022 12.29, Vladimir Sementsov-Ogievskiy wrote:
>> From: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
>>
>> Add two simple test-cases: timeout failure with
>> break-snapshot-on-cbw-error behavior and similar with
>> break-guest-write-on-cbw-error behavior.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
>> Reviewed-by: Hanna Reitz <hreitz@redhat.com>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
>> ---
>>   tests/qemu-iotests/tests/copy-before-write    | 81 +++++++++++++++++++
>>   .../qemu-iotests/tests/copy-before-write.out  |  4 +-
>>   2 files changed, 83 insertions(+), 2 deletions(-)
> 
>   Hi!
> 
> Seems like this test is failing in the CI on FreeBSD and macOS:
> 
>   https://gitlab.com/qemu-project/qemu/-/jobs/2670729995#L5763
>   https://gitlab.com/qemu-project/qemu/-/jobs/2670729993#L3247
> 
> Could you please have a look?
> 

+AssertionError: 'wrot[102 chars]led: Operation timed out\nread 1048576/1048576[72 chars]c)\n' != 'wrot[102 chars]led: Connection timed out\nread 1048576/104857[73 chars]c)\n'
+  wrote 524288/524288 bytes at offset 0
+  512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+- write failed: Operation timed out
+?               ^^ ^^
++ write failed: Connection timed out
+?               ^^^^ ^


Seems just different representation of ETIMEDOUT error. I'll send a patch to allow both variants.
Thomas Huth July 6, 2022, 4:22 p.m. UTC | #3
On 05/07/2022 11.03, Thomas Huth wrote:
> On 14/06/2022 12.29, Vladimir Sementsov-Ogievskiy wrote:
>> From: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
>>
>> Add two simple test-cases: timeout failure with
>> break-snapshot-on-cbw-error behavior and similar with
>> break-guest-write-on-cbw-error behavior.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
>> Reviewed-by: Hanna Reitz <hreitz@redhat.com>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
>> ---
>>   tests/qemu-iotests/tests/copy-before-write    | 81 +++++++++++++++++++
>>   .../qemu-iotests/tests/copy-before-write.out  |  4 +-
>>   2 files changed, 83 insertions(+), 2 deletions(-)
> 
>   Hi!
> 
> Seems like this test is failing in the CI on FreeBSD and macOS:
> 
>   https://gitlab.com/qemu-project/qemu/-/jobs/2670729995#L5763
>   https://gitlab.com/qemu-project/qemu/-/jobs/2670729993#L3247
> 
> Could you please have a look?

I just hit another failure, this time in a restricted build:

+FFFF
+======================================================================
+FAIL: test_break_guest_write_on_cbw_error (__main__.TestCbwError)
+break-guest-write behavior:
+----------------------------------------------------------------------
+Traceback (most recent call last):
+  File "/home/thuth/devel/qemu/tests/qemu-iotests/tests/copy-before-write", 
line 124, in test_break_guest_write_on_cbw_error
+    log = self.do_cbw_error('break-guest-write')
+  File "/home/thuth/devel/qemu/tests/qemu-iotests/tests/copy-before-write", 
line 82, in do_cbw_error
+    self.assert_qmp(result, 'return', {})
+  File "/home/thuth/devel/qemu/tests/qemu-iotests/iotests.py", line 1190, 
in assert_qmp
+    result = self.dictpath(d, path)
+  File "/home/thuth/devel/qemu/tests/qemu-iotests/iotests.py", line 1164, 
in dictpath
+    self.fail(f'failed path traversal for "{path}" in "{d}"')
+AssertionError: failed path traversal for "return" in "{'error': {'class': 
'GenericError', 'desc': "Driver 'copy-before-write' is not whitelisted"}}"

I think you need to check for the availability of the driver first, like it 
is e.g. done in the image-fleecing test?

  Thomas
Vladimir Sementsov-Ogievskiy July 6, 2022, 5:05 p.m. UTC | #4
On 7/6/22 19:22, Thomas Huth wrote:
> On 05/07/2022 11.03, Thomas Huth wrote:
>> On 14/06/2022 12.29, Vladimir Sementsov-Ogievskiy wrote:
>>> From: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
>>>
>>> Add two simple test-cases: timeout failure with
>>> break-snapshot-on-cbw-error behavior and similar with
>>> break-guest-write-on-cbw-error behavior.
>>>
>>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
>>> Reviewed-by: Hanna Reitz <hreitz@redhat.com>
>>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
>>> ---
>>>   tests/qemu-iotests/tests/copy-before-write    | 81 +++++++++++++++++++
>>>   .../qemu-iotests/tests/copy-before-write.out  |  4 +-
>>>   2 files changed, 83 insertions(+), 2 deletions(-)
>>
>>   Hi!
>>
>> Seems like this test is failing in the CI on FreeBSD and macOS:
>>
>>   https://gitlab.com/qemu-project/qemu/-/jobs/2670729995#L5763
>>   https://gitlab.com/qemu-project/qemu/-/jobs/2670729993#L3247
>>
>> Could you please have a look?
> 
> I just hit another failure, this time in a restricted build:
> 
> +FFFF
> +======================================================================
> +FAIL: test_break_guest_write_on_cbw_error (__main__.TestCbwError)
> +break-guest-write behavior:
> +----------------------------------------------------------------------
> +Traceback (most recent call last):
> +  File "/home/thuth/devel/qemu/tests/qemu-iotests/tests/copy-before-write", line 124, in test_break_guest_write_on_cbw_error
> +    log = self.do_cbw_error('break-guest-write')
> +  File "/home/thuth/devel/qemu/tests/qemu-iotests/tests/copy-before-write", line 82, in do_cbw_error
> +    self.assert_qmp(result, 'return', {})
> +  File "/home/thuth/devel/qemu/tests/qemu-iotests/iotests.py", line 1190, in assert_qmp
> +    result = self.dictpath(d, path)
> +  File "/home/thuth/devel/qemu/tests/qemu-iotests/iotests.py", line 1164, in dictpath
> +    self.fail(f'failed path traversal for "{path}" in "{d}"')
> +AssertionError: failed path traversal for "return" in "{'error': {'class': 'GenericError', 'desc': "Driver 'copy-before-write' is not whitelisted"}}"
> 
> I think you need to check for the availability of the driver first, like it is e.g. done in the image-fleecing test?
> 

Oh, right!
diff mbox series

Patch

diff --git a/tests/qemu-iotests/tests/copy-before-write b/tests/qemu-iotests/tests/copy-before-write
index 6c7638965e..f01f26f01c 100755
--- a/tests/qemu-iotests/tests/copy-before-write
+++ b/tests/qemu-iotests/tests/copy-before-write
@@ -126,6 +126,87 @@  read 1048576/1048576 bytes at offset 0
 1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 """)
 
+    def do_cbw_timeout(self, on_cbw_error):
+        result = self.vm.qmp('object-add', {
+            'qom-type': 'throttle-group',
+            'id': 'group0',
+            'limits': {'bps-write': 300 * 1024}
+        })
+        self.assert_qmp(result, 'return', {})
+
+        result = self.vm.qmp('blockdev-add', {
+            'node-name': 'cbw',
+            'driver': 'copy-before-write',
+            'on-cbw-error': on_cbw_error,
+            'cbw-timeout': 1,
+            'file': {
+                'driver': iotests.imgfmt,
+                'file': {
+                    'driver': 'file',
+                    'filename': source_img,
+                }
+            },
+            'target': {
+                'driver': 'throttle',
+                'throttle-group': 'group0',
+                'file': {
+                    'driver': 'qcow2',
+                    'file': {
+                        'driver': 'file',
+                        'filename': temp_img
+                    }
+                }
+            }
+        })
+        self.assert_qmp(result, 'return', {})
+
+        result = self.vm.qmp('blockdev-add', {
+            'node-name': 'access',
+            'driver': 'snapshot-access',
+            'file': 'cbw'
+        })
+        self.assert_qmp(result, 'return', {})
+
+        result = self.vm.qmp('human-monitor-command',
+                             command_line='qemu-io cbw "write 0 512K"')
+        self.assert_qmp(result, 'return', '')
+
+        # We need second write to trigger throttling
+        result = self.vm.qmp('human-monitor-command',
+                             command_line='qemu-io cbw "write 512K 512K"')
+        self.assert_qmp(result, 'return', '')
+
+        result = self.vm.qmp('human-monitor-command',
+                             command_line='qemu-io access "read 0 1M"')
+        self.assert_qmp(result, 'return', '')
+
+        self.vm.shutdown()
+        log = self.vm.get_log()
+        log = re.sub(r'^\[I \d+\.\d+\] OPENED\n', '', log)
+        log = re.sub(r'\[I \+\d+\.\d+\] CLOSED\n?$', '', log)
+        log = iotests.filter_qemu_io(log)
+        return log
+
+    def test_timeout_break_guest(self):
+        log = self.do_cbw_timeout('break-guest-write')
+        self.assertEqual(log, """\
+wrote 524288/524288 bytes at offset 0
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: Connection timed out
+read 1048576/1048576 bytes at offset 0
+1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+""")
+
+    def test_timeout_break_snapshot(self):
+        log = self.do_cbw_timeout('break-snapshot')
+        self.assertEqual(log, """\
+wrote 524288/524288 bytes at offset 0
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 524288/524288 bytes at offset 524288
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read failed: Permission denied
+""")
+
 
 if __name__ == '__main__':
     iotests.main(supported_fmts=['qcow2'],
diff --git a/tests/qemu-iotests/tests/copy-before-write.out b/tests/qemu-iotests/tests/copy-before-write.out
index fbc63e62f8..89968f35d7 100644
--- a/tests/qemu-iotests/tests/copy-before-write.out
+++ b/tests/qemu-iotests/tests/copy-before-write.out
@@ -1,5 +1,5 @@ 
-..
+....
 ----------------------------------------------------------------------
-Ran 2 tests
+Ran 4 tests
 
 OK