Hi zusammen,
hab im Syslog alle 30 Sekunden Interface Fehler, konnte dazu leider nichts zielführendes bei Google finden.
Auf dem Server läuft nur mailcow und wenn docker-compose gestoppt wird, sind die Fehler weg.
Jemand eine Idee was die Ursache sein könnte?
Danke vorab.
docker -v
Docker version 20.10.5, build 55c4c88

uname -a
Linux mail.xxx.xxx 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2+deb10u1 (2020-06-07) x86_64 GNU/Linux

Hetzner Cloud Server

Mailcow aktuellste Version (March 31, 2021), Meldungen waren aber schon bei der Version davor vorhanden.

tail -f /var/log/syslog
Apr 10 02:06:05 mail dockerd[653]: time="2021-04-10T02:06:05.646888650+02:00" level=info msg="ignoring event" container=c2a3f54a462bda969486620c41d0aa641164704607589412c3d3a4f50dba9adb module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Apr 10 02:06:05 mail containerd[618]: time="2021-04-10T02:06:05.652921184+02:00" level=info msg="shim disconnected" id=c2a3f54a462bda969486620c41d0aa641164704607589412c3d3a4f50dba9adb
Apr 10 02:06:05 mail containerd[618]: time="2021-04-10T02:06:05.653974129+02:00" level=error msg="copy shim log" error="read /proc/self/fd/33: file already closed"
Apr 10 02:06:05 mail kernel: [  119.523373] br-mailcow: port 7(veth92ef49c) entered disabled state
Apr 10 02:06:05 mail kernel: [  119.531277] veth2b24474: renamed from eth0
Apr 10 02:06:05 mail systemd-udevd[7108]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
Apr 10 02:06:05 mail kernel: [  119.693231] br-mailcow: port 7(veth92ef49c) entered disabled state
Apr 10 02:06:05 mail kernel: [  119.705482] device veth92ef49c left promiscuous mode
Apr 10 02:06:05 mail kernel: [  119.707328] br-mailcow: port 7(veth92ef49c) entered disabled state
Apr 10 02:06:05 mail systemd[1280]: run-docker-netns-3119ff6fd601.mount: Succeeded.
Apr 10 02:06:05 mail systemd[1]: run-docker-netns-3119ff6fd601.mount: Succeeded.
Apr 10 02:06:05 mail systemd[1280]: var-lib-docker-containers-c2a3f54a462bda969486620c41d0aa641164704607589412c3d3a4f50dba9adb-mounts-shm.mount: Succeeded.
Apr 10 02:06:05 mail systemd[1]: var-lib-docker-containers-c2a3f54a462bda969486620c41d0aa641164704607589412c3d3a4f50dba9adb-mounts-shm.mount: Succeeded.
Apr 10 02:06:05 mail systemd[1280]: var-lib-docker-overlay2-107dc7ebd882bbe3982a8c84e353633391dfc65074ed8f3aa112e5900112320d-merged.mount: Succeeded.
Apr 10 02:06:05 mail systemd[1]: var-lib-docker-overlay2-107dc7ebd882bbe3982a8c84e353633391dfc65074ed8f3aa112e5900112320d-merged.mount: Succeeded.
Apr 10 02:06:05 mail systemd-udevd[7124]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
Apr 10 02:06:05 mail kernel: [  119.764697] br-mailcow: port 7(veth62d21ba) entered blocking state
Apr 10 02:06:05 mail kernel: [  119.772805] br-mailcow: port 7(veth62d21ba) entered disabled state
Apr 10 02:06:05 mail systemd-udevd[7124]: Using default interface naming scheme 'v240'.
Apr 10 02:06:05 mail kernel: [  119.779973] device veth62d21ba entered promiscuous mode
Apr 10 02:06:05 mail systemd-udevd[7124]: Could not generate persistent MAC address for vethab517af: No such file or directory
Apr 10 02:06:05 mail systemd-udevd[7128]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
Apr 10 02:06:05 mail systemd-udevd[7128]: Using default interface naming scheme 'v240'.
Apr 10 02:06:05 mail systemd-udevd[7128]: Could not generate persistent MAC address for veth62d21ba: No such file or directory
Apr 10 02:06:05 mail kernel: [  119.788018] IPv6: ADDRCONF(NETDEV_UP): veth62d21ba: link is not ready
Apr 10 02:06:05 mail kernel: [  119.789277] br-mailcow: port 7(veth62d21ba) entered blocking state
Apr 10 02:06:05 mail kernel: [  119.790454] br-mailcow: port 7(veth62d21ba) entered forwarding state
Apr 10 02:06:05 mail systemd-udevd[7108]: Process '/sbin/ip link set  down' failed with exit code 255.
Apr 10 02:06:05 mail systemd-udevd[7123]: Process '/sbin/ip link set  down' failed with exit code 255.
Apr 10 02:06:06 mail containerd[618]: time="2021-04-10T02:06:06.003662143+02:00" level=info msg="starting signal loop" namespace=moby path=/run/containerd/io.containerd.runtime.v2.task/moby/c2a3f54a462bda969486620c41d0aa641164704607589412c3d3a4f50dba9adb pid=7144
Apr 10 02:06:06 mail systemd[1280]: run-docker-runtime\x2drunc-moby-c2a3f54a462bda969486620c41d0aa641164704607589412c3d3a4f50dba9adb-runc.4CSnLU.mount: Succeeded.
Apr 10 02:06:06 mail kernel: [  120.273706] eth0: renamed from vethab517af
Apr 10 02:06:06 mail systemd-udevd[7123]: Process '/sbin/ip link set  down' failed with exit code 255.
Apr 10 02:06:06 mail kernel: [  120.352012] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Apr 10 02:06:06 mail kernel: [  120.363605] IPv6: ADDRCONF(NETDEV_CHANGE): veth62d21ba: link becomes ready