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Linux guests with LIS 4.0.11 restarts network during live migration even with static MAC RRS feed

  • Question

  • Hello,

    We are having some issues with our Linux guests.

    Even with static MAC assigned.

    Using LIS 4.0.11.

    When doing live migration we detected that the guest OS shutdown the network interfaces and start it again, loosing network connectivity.

    CentOS 5 trought 7. But, if we remove LIS from CentOS 7 the issue doesn't happen.

    Example of /var/log/messages on guest:

    /var/log/messages
    Jan 12 11:53:30 snake.rbs.com.br systemd[1]: Time has been changed
    Jan 12 11:53:30 snake.rbs.com.br systemd[1]: Stopping LSB: Bring up/down networking...
    Jan 12 11:53:30 snake.rbs.com.br kernel: scsi 1:0:1:0: scsi scan: INQUIRY result too short (5), using 36
    Jan 12 11:53:30 snake.rbs.com.br kernel: scsi 1:0:1:1: scsi scan: INQUIRY result too short (5), using 36
    Jan 12 11:53:31 snake.rbs.com.br NetworkManager[695]: <info>  (eth0): link disconnected (deferring action for 4 seconds)
    Jan 12 11:53:32 snake.rbs.com.br network[21658]: Shutting down interface eth0:  [  OK  ]
    Jan 12 11:53:32 snake.rbs.com.br kernel: hv_balloon: Received INFO_TYPE_MAX_PAGE_CNT
    Jan 12 11:53:32 snake.rbs.com.br kernel: hv_balloon: Data Size is 8
    Jan 12 11:53:32 snake.rbs.com.br NetworkManager[695]: <info>  (lo): link disconnected
    Jan 12 11:53:32 snake.rbs.com.br network[21658]: Shutting down loopback interface:  [  OK  ]
    Jan 12 11:53:32 snake.rbs.com.br systemd[1]: Starting LSB: Bring up/down networking...
    Jan 12 11:53:32 snake.rbs.com.br systemd-sysctl[21830]: Overwriting earlier assignment of kernel/sysrq in file '/etc/sysctl.d/rbs-hardening.conf'.
    Jan 12 11:53:32 snake.rbs.com.br NetworkManager[695]: <info>  (lo): link connected
    Jan 12 11:53:32 snake.rbs.com.br network[21807]: Bringing up loopback interface:  [  OK  ]
    Jan 12 11:53:32 snake.rbs.com.br NetworkManager[695]: <info>  (eth0): link connected
    Jan 12 11:53:34 snake.rbs.com.br ntpd[716]: Deleting interface #4 eth0:apache01, 10.242.20.53#123, interface stats: received=0, sent=0, dropped=0, active_time=2418033 secs
    Jan 12 11:53:34 snake.rbs.com.br ntpd[716]: Deleting interface #3 eth0, 10.242.20.43#123, interface stats: received=2359, sent=2360, dropped=0, active_time=2418033 secs
    Jan 12 11:53:34 snake.rbs.com.br ntpd[716]: 192.168.50.143 interface 10.242.20.43 -> (none)
    

    Any thoughts ? Tips ?

    Thanks for your time.


    Tiago Lock

    • Moved by BrianEhMVP Tuesday, January 12, 2016 3:41 PM
    Tuesday, January 12, 2016 1:56 PM

All replies

  • We're looking into the issue and may come back with additional questions. Thanks for your patience! --jrp

    Joshua R. Poulson, Program Manager, Microsoft Open Source Technology Center

    Tuesday, January 26, 2016 8:01 PM