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Re: [PATCH 4/7] iotests/129: Use throttle node

From: Max Reitz
Subject: Re: [PATCH 4/7] iotests/129: Use throttle node
Date: Wed, 13 Jan 2021 15:10:20 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0

On 13.01.21 15:06, Max Reitz wrote:
Throttling on the BB has not affected block jobs in a while, so it is
possible that one of the jobs in 129 finishes before the VM is stopped.
We can fix that by running the job from a throttle node.

Signed-off-by: Max Reitz <mreitz@redhat.com>
  tests/qemu-iotests/129 | 39 +++++++++++++++------------------------
  1 file changed, 15 insertions(+), 24 deletions(-)

diff --git a/tests/qemu-iotests/129 b/tests/qemu-iotests/129
index dd23bb2e5a..febc806398 100755
--- a/tests/qemu-iotests/129
+++ b/tests/qemu-iotests/129


@@ -53,33 +51,26 @@ class TestStopWithBlockJob(iotests.QMPTestCase):
      def do_test_stop(self, cmd, **args):
          """Test 'stop' while block job is running on a throttled drive.
          The 'stop' command shouldn't drain the job"""
-        params = {"device": "drive0",
-                  "bps": 1024,
-                  "bps_rd": 0,
-                  "bps_wr": 0,
-                  "iops": 0,
-                  "iops_rd": 0,
-                  "iops_wr": 0,
-                 }
-        result = self.vm.qmp("block_set_io_throttle", conv_keys=False,
-                             **params)
-        self.assert_qmp(result, 'return', {})
          result = self.vm.qmp(cmd, **args)
          self.assert_qmp(result, 'return', {})
          result = self.vm.qmp("stop")
          self.assert_qmp(result, 'return', {})
          result = self.vm.qmp("query-block-jobs")
          self.assert_qmp(result, 'return[0]/status', 'running')
          self.assert_qmp(result, 'return[0]/ready', False)
+ self.vm.qmp("block-job-cancel", device="drive0", force=True)

Sorry, somewhere along the way I forgot to remove this block-job-cancel. It’s still from https://lists.nongnu.org/archive/html/qemu-block/2019-06/msg00499.html and I don’t know why I added it there. It should probably go.

('stop' should have drained, that’s the point, so there shouldn’t be any further delay if we quit the VM without cancelling the job.)


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