This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 2000397 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- 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/2000397 Title: Port in LACP not forward packets after restart one switch in stack - Intel x520 (ixgbe) Status in linux package in Ubuntu: Incomplete Bug description: We have several servers connected to stack switches. The servers have 2 x X520's and are connected 2x10GB(bonding). After restarting one switch in the stack, the port that flaped not forwarded packets except for arp(one way) and LACP is UP on two ports. The problem occurs when the restarted switch returns and LACP will be connected. LACP works incorrect and some packets are sent with a problematic link and they do not reach their destination. We are seeing a lot of packet loss because of this. If you disable this port, the problem does not occur, if I enable it again, the problem returns. Restarting the server or reloading the network driver solves the problem until the switch is restarted, e.g. during a switch upgrade. Do you have any idea how to solve this problem or how to debug it? -------------------------------------------------------------------------- # cat /etc/netplan/01-netcfg.yaml bonds: bond0: mtu: 9000 macaddress: 90:e2:ba:c9:b6:34 interfaces: [ens1f0, ens2f0] parameters: mode: 802.3ad bond1: mtu: 9000 macaddress: 90:e2:ba:c9:b6:35 interfaces: [ens1f1, ens2f1] parameters: mode: 802.3ad # lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04 LTS Release: 20.04 Codename: focal uname -a Linux server 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux # dpkg -l | grep bonding ii ifenslave 2.9ubuntu1 all configure network interfaces for parallel routing (bonding) # modinfo ixgbe filename: /lib/modules/5.4.0-26-generic/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe.ko version: 5.1.0-k license: GPL v2 description: Intel(R) 10 Gigabit PCI Express Network Driver author: Intel Corporation, <linux.n...@intel.com> srcversion: 436CCBE2A80978751F572E6 # cat /proc/net/bonding/bond1 Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: IEEE 802.3ad Dynamic link aggregation Transmit Hash Policy: layer2 (0) MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 0 Down Delay (ms): 0 Peer Notification Delay (ms): 0 802.3ad info LACP rate: slow Min links: 0 Aggregator selection policy (ad_select): stable System priority: 65535 System MAC address: 3c:ec:ef:38:3b:4a Active Aggregator Info: Aggregator ID: 1 Number of ports: 2 Actor Key: 15 Partner Key: 5953 Partner Mac Address: 7c:1c:f1:88:33:31 Slave Interface: ens2f1 MII Status: up Speed: 10000 Mbps Duplex: full Link Failure Count: 1 Permanent HW addr: 90:e2:ba:c9:b6:35 Slave queue ID: 0 Aggregator ID: 1 Actor Churn State: none Partner Churn State: none Actor Churned Count: 0 Partner Churned Count: 0 details actor lacp pdu: system priority: 65535 system mac address: 3c:ec:ef:38:3b:4a port key: 15 port priority: 255 port number: 1 port state: 61 details partner lacp pdu: system priority: 32768 system mac address: 7c:1c:f1:88:33:31 oper key: 5953 port priority: 32768 port number: 23 port state: 61 Slave Interface: ens1f1 MII Status: up Speed: 10000 Mbps Duplex: full Link Failure Count: 1 Permanent HW addr: f8:f2:1e:12:be:65 Slave queue ID: 0 Aggregator ID: 1 Actor Churn State: none Partner Churn State: none Actor Churned Count: 0 Partner Churned Count: 0 details actor lacp pdu: system priority: 65535 system mac address: 3c:ec:ef:38:3b:4a port key: 15 port priority: 255 port number: 2 port state: 61 details partner lacp pdu: system priority: 32768 system mac address: 7c:1c:f1:88:33:31 oper key: 5953 port priority: 32768 port number: 108 port state: 61 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2000397/+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