[LU-13663] LNet: lnetctl crashes on import of yaml config that it fails to parse

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Serguei Smirnov

Description

The following yaml causes a problem (note empty interfaces):

 net:
    - net type: tcp
      local NI(s):
        - nid: 10.122.36.80@tcp
          status: up
          interfaces:
          statistics:
              send_count: 0
              recv_count: 0
              drop_count: 0
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          lnd tunables:
          tcp bonding: 0
          dev cpt: -1
numa:
    range: 0

# lnetctl import lnetconf2.txt 
error:
	fatal: out of memory
??S??:
Segmentation fault 

This was reproduced on 7.8 Centos, b2_12 patchless client system (https://build.whamcloud.com/job/lustre-b2_12-patchless/83/)  

and on master.