Libvirtd starts in cycles of 10 minutes

Community Support
1

Hello Opennebula Team,
My system operates very normally, but every 10 minutes, my syslog reports:

Dec  7 13:58:10 kvmnode libvirtd[474187]: libvirt version: 8.0.0, package: 1ubuntu7.7 (Michal Maloszewski <michal.maloszewski@canonical.com> Fri, 04 Aug 2023 10:42:25 +0200)
Dec  7 13:58:10 kvmnode libvirtd[474187]: hostname: kvmnode
Dec  7 13:58:10 kvmnode libvirtd[474187]: Failed to open file '/sys/kernel/security/apparmor/profiles': Permission denied
Dec  7 13:58:10 kvmnode libvirtd[474187]: Failed to read AppArmor profiles list '/sys/kernel/security/apparmor/profiles': Permission denied
Dec  7 13:58:10 kvmnode libvirtd[474187]: Failed to open file '/sys/kernel/security/apparmor/profiles': Permission denied
Dec  7 13:58:10 kvmnode libvirtd[474187]: Failed to read AppArmor profiles list '/sys/kernel/security/apparmor/profiles': Permission denied
Dec  7 13:58:10 kvmnode dbus-daemon[40734]: apparmor="ALLOWED" operation="dbus_method_call"  bus="session" path="/org/freedesktop/DBus" interface="org.freedesktop.DBus" member="Hello" mask="send" name="org.freedesktop.DBus" pid=474187 label="libvirtd" peer_label="unconfined"
Dec  7 13:58:11 kvmnode libvirtd[474187]: Failed to open a VPD file '/sys/bus/pci/devices/0000:01:00.0/vpd': Operation not permitted
Dec  7 13:58:11 kvmnode libvirtd[474187]: Failed to open a VPD file '/sys/bus/pci/devices/0000:01:00.1/vpd': Operation not permitted
Dec  7 13:58:11 kvmnode libvirtd[474187]: Failed to open a VPD file '/sys/bus/pci/devices/0000:01:00.2/vpd': Operation not permitted
Dec  7 13:58:11 kvmnode libvirtd[474187]: Failed to open a VPD file '/sys/bus/pci/devices/0000:01:00.3/vpd': Operation not permitted

Here is ps command:

root       39725  0.4  0.0 1925180 36956 ?       Ssl  Nov22  88:13 /usr/sbin/libvirtd
oneadmin  474187  1.3  0.0 1547428 31896 ?       Sl   13:58   0:00 /usr/sbin/libvirtd --timeout=120
root      474713  0.0  0.0   4024  2084 pts/0    S+   13:58   0:00 grep --color=auto libvirtd

And I notice that every 10 minutes, a libvirt process is started under the oneadmin user. Is this normal behavior, and do I need to configure it to allow access to resources?

Versions of the related components and OS (frontend, hypervisors, VMs): Opennebula 6.8, Ubuntu server 22.04
Thanks,

2

You shouldn’t have two libvirt processes. Make sure you restart the libvirtd process after installing the kvm node packages. Also check the rhel specific platform notes regarding libvirtd.

3

Thank you,

4

Hi!

I got the same behavior. Every 10 minutes a libvirt process is started under the oneadmin user and in the syslog you will see the “Failed to open a VPD” messages. I already restart the libvirtd process, but this didn’t fix the issue for me.

Setup:
OpenNebula 6.8
Ubuntu Server 22.04

Dec 11 17:05:33 node-dr1 libvirtd[2751096]: libvirt version: 8.0.0, package: 1ubuntu7.7 (Michal Maloszewski <michal.maloszewski@canonical.com> Fri, 04 Aug 2023 10:42:25 +0200)
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: hostname: node-dr1
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to open file '/sys/kernel/security/apparmor/profiles': Permission denied
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to read AppArmor profiles list '/sys/kernel/security/apparmor/profiles': Permission denied
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to open file '/sys/kernel/security/apparmor/profiles': Permission denied
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to read AppArmor profiles list '/sys/kernel/security/apparmor/profiles': Permission denied
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to open a VPD file '/sys/bus/pci/devices/0000:45:00.0/vpd': Operation not permitted
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to open a VPD file '/sys/bus/pci/devices/0000:45:00.1/vpd': Operation not permitted
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to open a VPD file '/sys/bus/pci/devices/0000:45:00.2/vpd': Operation not permitted
Dec 11 17:05:33 node-dr1 libvirtd[2751096]: Failed to open a VPD file '/sys/bus/pci/devices/0000:45:00.3/vpd': Operation not permitted
5

Could you, please, check if there is only one libvirtd process is running on hypervisor host?
If there are more than one then, please, stop libvirtd.service:

[root@CN]$ systemctl stop libvirtd.service

Kill the rest libvirtd processes and start libvirtd.service again:

[root@CN]$ systemctl start libvirtd.service

Make sure there is one libvirtd process is running now. Check syslog for error you had before.

6

We have created Github issue. Feel free to track a progress on that issue there.

1 Like