** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2029261
Title:
[UBUNTU 23.04] vlan interface lost after rebooting the operating
system
Status in Ubuntu on IBM z Systems:
New
Status in linux package in Ubuntu:
New
Bug description:
---Problem Description---
[ubuntu 23.04] vlan interface lost after reboot of operating system
Contact Information = [email protected]
---uname output---
Linux a257ubut02 6.2.0-25-generic #25-Ubuntu SMP Fri Jun 16 16:15:36 UTC 2023
s390x s390x s390x GNU/Linux
Machine Type = 3932 - LA2 (LinuxONE 4)
---Steps to Reproduce---
Hi,
In the test, I found the vlan interface will lost after I reboot the
operating system, when the system boot up done, log in the system,
restart the systemd-networkd service, the vlan interface can show up
again.
test environment:
Linux distros: ubut 22.04 and 23.04, I used the ubut23.04 in the attached log
HW platform: LinuxONE 4 on DPM mode
network: set vNic using an OSA adapter as the backend adapter in trunk mode,
I tried the adapter in access mode (assign the IP addr to enc device directly),
no this issue.
I'll attach the systemd-networkd log (systemd-networkd-restart-
network.log), here are some timestamps I did:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> Jul 17 04:15:10 -- reboot the operating system
After the system boot up down, login to the system, the vlan interface
disappeared in the 'ip a' command
> Jul 17 04:25:02 -- restart the systemd-networkd service by 'sudo systemctl
restart systemd-networkd.service' command
After restart service, the vlan interface appearred in the 'ip a' list, and
the IP address assigned to the vlan is usable.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I opened the log and found some logs with issue point while IPLing, it
shows the 'Lost carrier' in enc1000 (enc1000 is the physical device of
the vlan interface), but I think there is no hardware issue in the
lab, we are using the adapters for testing other distros like rhel,
suse, and old ubut versions, like 20.04, all are Ok.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Link UP
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Gained carrier
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Link DOWN
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Lost carrier
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Could not create
stacked netdev: No such device
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Failed
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Link UP
Jul 17 04:15:51 a257ubut02 systemd-networkd[1066]: enc1000: Gained carrier
Jul 17 04:15:52 a257ubut02 systemd-networkd[1066]: enc1000: Gained IPv6LL
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Could you please help to take a look, thanks~
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