Hello,

after updating hosted engine from 4.3.3 to 4.3.5 and then the only host composing the environment (plain CentOS 7.6) it seems it is not able to start vdsm daemons

kernel installed with update is kernel-3.10.0-957.27.2.el7.x86_64

Same problem also if using previous running kernel  3.10.0-957.12.2.el7.x86_64

[root@ovirt01 vdsm]# uptime
 00:50:08 up 25 min,  3 users,  load average: 0.60, 0.67, 0.60
[root@ovirt01 vdsm]#

[root@ovirt01 vdsm]# systemctl status vdsmd -l
● vdsmd.service - Virtual Desktop Server Manager
   Loaded: loaded (/etc/systemd/system/vdsmd.service; enabled; vendor preset: enabled)
   Active: failed (Result: start-limit) since Fri 2019-08-23 00:37:27 CEST; 7s ago
  Process: 25810 ExecStartPre=/usr/libexec/vdsm/vdsmd_init_common.sh --pre-start (code=exited, status=1/FAILURE)

Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Failed to start Virtual Desktop Server Manager.
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Unit vdsmd.service entered failed state.
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: vdsmd.service failed.
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: vdsmd.service holdoff time over, scheduling restart.
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Stopped Virtual Desktop Server Manager.
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: start request repeated too quickly for vdsmd.service
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Failed to start Virtual Desktop Server Manager.
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Unit vdsmd.service entered failed state.
Aug 23 00:37:27 ovirt01.mydomain systemd[1]: vdsmd.service failed.
[root@ovirt01 vdsm]#

[root@ovirt01 vdsm]# pwd
/var/log/vdsm
[root@ovirt01 vdsm]# ll -t | head
total 118972
-rw-r--r--. 1 root root 3406465 Aug 23 00:25 supervdsm.log
-rw-r--r--. 1 root root   73621 Aug 23 00:25 upgrade.log
-rw-r--r--. 1 vdsm kvm        0 Aug 23 00:01 vdsm.log
-rw-r--r--. 1 vdsm kvm   538480 Aug 22 23:46 vdsm.log.1.xz
-rw-r--r--. 1 vdsm kvm   187486 Aug 22 23:46 mom.log
-rw-r--r--. 1 vdsm kvm   621320 Aug 22 22:01 vdsm.log.2.xz
-rw-r--r--. 1 root root  374464 Aug 22 22:00 supervdsm.log.1.xz
-rw-r--r--. 1 vdsm kvm  2097122 Aug 22 21:53 mom.log.1
-rw-r--r--. 1 vdsm kvm   636212 Aug 22 20:01 vdsm.log.3.xz
[root@ovirt01 vdsm]#

link to upgrade.log contents here:

link to supervdsm.log (in gzip format) here:

It seems that since update I get these kind of lines inside it...

restore-net::DEBUG::2019-08-22 23:56:38,591::cmdutils::133::root::(exec_cmd) /sbin/tc filter del dev eth0 pref 5000 (cwd None)
restore-net::DEBUG::2019-08-22 23:56:38,595::cmdutils::141::root::(exec_cmd) FAILED: <err> = 'RTNETLINK answers: Invalid argument\nWe have an error talking to the kernel\n'; <rc> = 2

[root@ovirt01 vdsm]# systemctl status supervdsmd -l
● supervdsmd.service - Auxiliary vdsm service for running helper functions as root
   Loaded: loaded (/usr/lib/systemd/system/supervdsmd.service; static; vendor preset: enabled)
   Active: active (running) since Fri 2019-08-23 00:25:17 CEST; 23min ago
 Main PID: 4540 (supervdsmd)
    Tasks: 3
   CGroup: /system.slice/supervdsmd.service
           └─4540 /usr/bin/python2 /usr/share/vdsm/supervdsmd --sockfile /var/run/vdsm/svdsm.sock

Aug 23 00:25:17 ovirt01.mydomain systemd[1]: Started Auxiliary vdsm service for running helper functions as root.
[root@ovirt01 vdsm]#

[root@ovirt01 vdsm]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovirtmgmt state UP group default qlen 1000
    link/ether b8:ae:ed:7f:17:11 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:c2:c6:a4:18:c5 brd ff:ff:ff:ff:ff:ff
4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 36:21:c1:5e:70:aa brd ff:ff:ff:ff:ff:ff
5: br-int: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 46:d8:db:81:41:4e brd ff:ff:ff:ff:ff:ff
22: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether b8:ae:ed:7f:17:11 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.211/24 brd 192.168.1.255 scope global ovirtmgmt
       valid_lft forever preferred_lft forever
[root@ovirt01 vdsm]#

[root@ovirt01 vdsm]# ip route show
default via 192.168.1.1 dev ovirtmgmt
192.168.1.0/24 dev ovirtmgmt proto kernel scope link src 192.168.1.211
[root@ovirt01 vdsm]#

[root@ovirt01 vdsm]# brctl show
bridge name bridge id STP enabled interfaces
ovirtmgmt 8000.b8aeed7f1711 no eth0
[root@ovirt01 vdsm]#

[root@ovirt01 vdsm]# systemctl status openvswitch
● openvswitch.service - Open vSwitch
   Loaded: loaded (/usr/lib/systemd/system/openvswitch.service; enabled; vendor preset: disabled)
   Active: active (exited) since Fri 2019-08-23 00:25:09 CEST; 26min ago
  Process: 3894 ExecStart=/bin/true (code=exited, status=0/SUCCESS)
 Main PID: 3894 (code=exited, status=0/SUCCESS)
    Tasks: 0
   CGroup: /system.slice/openvswitch.service

Aug 23 00:25:09 ovirt01.mydomain systemd[1]: Starting Open vSwitch...
Aug 23 00:25:09 ovirt01.mydomain systemd[1]: Started Open vSwitch.

[root@ovirt01 vdsm]# ovs-vsctl show
02539902-1788-4796-9cdf-cf11ce8436bb
    Bridge br-int
        fail_mode: secure
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.11.0"
[root@ovirt01 vdsm]#

any hints? Thanks

Gianluca