[Bug 1774132] Re: [Bionic]udev stop notifying when network interface added

[Dan Streetman]

please reopen if this is still an issue

** Changed in: systemd (Ubuntu)
       Status: New => Invalid

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Title:
  [Bionic]udev stop notifying when network interface added

Status in systemd package in Ubuntu:
  Invalid

Bug description:
  Expected:

  After a network driver restart, the network interfaces are deleted and
  added again, the udev should notify that new interface was added. then
  the interface service should be started accordingly.

  Actual:
  Udev doesn't notify about that new interface is added and the interface service doesn't start.

  More details:

  We see this issue when using Mellanox OFED package.
  Mellanox OFED add a service per network device and add udev rule to start this service when the interface added.
  After driver restart ("/etc/init.d/openibd restart") the network devices doesn't loaded, since udev doesn't notify.

  The system should run from udev rules, since once the driver creates
  an interface, there should be a udev event saying a new interface is
  added, then this script will be ran by udev (the OS).

  " /bin/systemctl --no-block start mlnx_interface_mgr at ib0.service "

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