[LU-16836] LNet: initial ni status is "up" if starting with link disconnected

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Labels: ksocklnd lnet o2iblnd
• Severity: 3
• Assignee: Serguei Smirnov
• Reporter: Serguei Smirnov

Description

Adding NI if the corresponding interface is disconnected results in NI listed as "up" while it is expected to be "down". For example:

7: bond0: <NO-CARRIER,BROADCAST,MULTICAST,MASTER,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:a3:1a:44 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.239/24 brd 192.168.122.255 scope global noprefixroute dynamic bond0
       valid_lft 3264sec preferred_lft 3264sec
    inet6 fe80::5054:ff:fea3:1a44/64 scope link 
       valid_lft forever preferred_lft forever

# lnetctl net add --net tcp --if bond0
# lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.239@tcp
          status: up
          interfaces:
              0: bond0

 

Issue Links

• is related to: LU-17235 kernel panic on kiblnd_startup with logical interfaces