Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
probe::sunrpc.clnt.call_async - Make an asynchronous RPC call
SYNOPSIS
sunrpc.clnt.call_async
VALUES
procname
the procedure name in this RPC call
dead
whether this client is abandoned
servername
the server machine name
vers
the RPC program version number
prot
the IP protocol number
prog
the RPC program number
xid
current transmission id
port
the port number
flags
flags
proc
the procedure number in this RPC call
progname
the RPC program name
SystemTap Tapset Reference March 2016 PROBE::SUNRPC.CLNT(3stap)