smoketest: T7948: always verify FRRs mgmtd PID is unchanged

Upgrades to FRR 10.4 have shown that there are cases where FRRs mgmtd will
SIGSEGV - to cover for this case and fail the smoketests we will monitor the
PID of the mgmtd process.

1 files changed, 5 insertions, 0 deletions

diff --git a/smoketest/scripts/cli/test_interfaces_ethernet.py b/smoketest/scripts/cli/test_interfaces_ethernet.py
index cdc3dad9e..6d0b7b772 100755
--- a/smoketest/scripts/cli/test_interfaces_ethernet.py
+++ b/smoketest/scripts/cli/test_interfaces_ethernet.py
@@ -28,11 +28,13 @@ from base_interfaces_test import BasicInterfaceTest
 from base_vyostest_shim import VyOSUnitTestSHIM
 
 from vyos.configsession import ConfigSessionError
+from vyos.frrender import mgmt_daemon
 from vyos.ifconfig import Section
 from vyos.utils.file import read_file
 from vyos.utils.network import is_intf_addr_assigned
 from vyos.utils.network import is_ipv6_link_local
 from vyos.utils.process import cmd
+from vyos.utils.process import process_named_running
 from vyos.utils.process import popen
 
 class EthernetInterfaceTest(BasicInterfaceTest.TestCase):
@@ -87,6 +89,9 @@ class EthernetInterfaceTest(BasicInterfaceTest.TestCase):
             ]
             self.assertListEqual(tmp, [])
 
+        # check process health and continuity
+        self.assertEqual(self.mgmt_daemon_pid, process_named_running(mgmt_daemon))
+
     def test_offloading_rps(self):
         # enable RPS on all available CPUs, RPS works with a CPU bitmask,
         # where each bit represents a CPU (core/thread). The formula below