If OSPF is being run on wireless interface, this interface is in disable-running-check=yes mode, and this interface is not connected, whole OSPF routing process dies after 5 or so minutes of such operation.
(/routing ospf neighbor print freezes the console until ctrl+c pressed)
This is /routing ospf interface configuration for mentioned interface.
1 interface=wlan2 cost=10 priority=0 authentication=md5 authentication-key=“secret” authentication-key-id=1 network-type=ptmp passive=no retransmit-interval=5s transmit-delay=1s hello-interval=1s dead-interval=5s
this is fully repeatable, so plx fix0r 
just disabling the network corresponding to this interface in /routing ospf network remedied the problem, but needless to say OSPF won’t operate when this interface comes back alive.