** Tags added: kernel-daily-bug -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 = mayi...@cn.ibm.com ---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~ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/2029261/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
