[PATCH for-5.1] iotests/030: Reduce job speed to make race less likely

[Kevin Wolf <kwolf@redhat.com>]

It can happen that the throttling of the stream job doesn't make it slow
enough that we can be sure that it still exists when it is referenced
again. Just use a much smaller speed to make this very unlikely to
happen again.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 tests/qemu-iotests/030 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/030 b/tests/qemu-iotests/030
index 256b2bfbc6..31c028306b 100755
--- a/tests/qemu-iotests/030
+++ b/tests/qemu-iotests/030
@@ -243,7 +243,7 @@ class TestParallelOps(iotests.QMPTestCase):
             node_name = 'node%d' % i
             job_id = 'stream-%s' % node_name
             pending_jobs.append(job_id)
-            result = self.vm.qmp('block-stream', device=node_name, job_id=job_id, base=self.imgs[i-2], speed=512*1024)
+            result = self.vm.qmp('block-stream', device=node_name, job_id=job_id, base=self.imgs[i-2], speed=1024)
             self.assert_qmp(result, 'return', {})
 
         for job in pending_jobs:
-- 
2.25.4