This used to happen randomly in the past, and started to happen again.

I can ignore this failure and merge, but this may fail the change queue.

Build:

https://jenkins.ovirt.org/job/vdsm_standard-check-patch/9520//artifact/check-patch.tests-py27.el7.x86_64/mock_logs/script/stdout_stderr.log

======================================================================
FAIL: test_add_delete_ipv4 (network.ip_address_test.IPAddressTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/jenkins/workspace/vdsm_standard-check-patch/vdsm/tests/network/ip_address_test.py", line 222, in test_add_delete_ipv4
    self._test_add_delete(IPV4_A_WITH_PREFIXLEN, IPV4_B_WITH_PREFIXLEN)
  File "/home/jenkins/workspace/vdsm_standard-check-patch/vdsm/tests/network/ip_address_test.py", line 247, in _test_add_delete
    self._assert_has_no_address(nic, ip_b)
  File "/home/jenkins/workspace/vdsm_standard-check-patch/vdsm/tests/network/ip_address_test.py", line 344, in _assert_has_no_address
    self._assert_address_not_in(address_with_prefixlen, addresses)
  File "/home/jenkins/workspace/vdsm_standard-check-patch/vdsm/tests/network/ip_address_test.py", line 352, in _assert_address_not_in
    self.assertNotIn(address_with_prefixlen, addresses_list)
AssertionError: '192.168.98.1/29' unexpectedly found in ['192.168.99.1/29', '192.168.98.1/29', 'fe80::3c92:48ff:fecd:8366/64']
-------------------- >> begin captured logging << --------------------
2019-08-05 12:27:49,718 DEBUG (MainThread) [root] /sbin/ip link add name dummy_GmE1I type dummy (cwd None) (cmdutils:130)
2019-08-05 12:27:49,731 DEBUG (MainThread) [root] SUCCESS: <err> = ''; <rc> = 0 (cmdutils:138)
2019-08-05 12:27:49,733 DEBUG (netlink/events) [root] START thread <Thread(netlink/events, started daemon 140511381804800)> (func=<bound method Monitor._scan of <vdsm.network.netlink.monitor.Monitor object at 0x7fcb7bbfd0d0>>, args=(), kwargs={}) (concurrent:193)
2019-08-05 12:27:49,734 DEBUG (MainThread) [root] /sbin/ip link set dev dummy_GmE1I up (cwd None) (cmdutils:130)
2019-08-05 12:27:49,746 DEBUG (MainThread) [root] SUCCESS: <err> = ''; <rc> = 0 (cmdutils:138)
2019-08-05 12:27:49,749 DEBUG (netlink/events) [root] FINISH thread <Thread(netlink/events, started daemon 140511381804800)> (concurrent:196)
2019-08-05 12:27:49,755 DEBUG (MainThread) [root] /sbin/ip -4 addr add dev dummy_GmE1I 192.168.99.1/29 (cwd None) (cmdutils:130)
2019-08-05 12:27:49,763 DEBUG (MainThread) [root] SUCCESS: <err> = ''; <rc> = 0 (cmdutils:138)
2019-08-05 12:27:49,767 DEBUG (MainThread) [root] /sbin/ip -4 addr add dev dummy_GmE1I 192.168.98.1/29 (cwd None) (cmdutils:130)
2019-08-05 12:27:49,778 DEBUG (MainThread) [root] SUCCESS: <err> = ''; <rc> = 0 (cmdutils:138)
2019-08-05 12:27:49,785 DEBUG (MainThread) [root] /sbin/ip -4 addr del dev dummy_GmE1I 192.168.98.1/29 (cwd None) (cmdutils:130)
2019-08-05 12:27:49,796 DEBUG (MainThread) [root] SUCCESS: <err> = ''; <rc> = 0 (cmdutils:138)
2019-08-05 12:27:49,803 DEBUG (MainThread) [root] /sbin/ip link del dev dummy_GmE1I (cwd None) (cmdutils:130)
2019-08-05 12:27:49,824 DEBUG (MainThread) [root] SUCCESS: <err> = ''; <rc> = 0 (cmdutils:138)