PR https://github.com/openshift/ose/pull/797

verified this bug on 
openshift v3.4.1.44
kubernetes v1.4.0+776c994
etcd 3.1.0-rc.0

No found panic in router logs by the script 

#!/bin/bash


function _simulate_eq_panic() {
    sleep 0.0$((RANDOM%3))
    echo "  - worker name: $1 ... "

    case "$((RANDOM%3))" in
      0)  oc create  -f "$2"  ;;
      1)  oc replace -f "$2"  ;;
      2)  oc delete  -f "$2"  ;;
      *)  oc replace -f "$2"  ;;
    esac

}  #  End of function  _simulate_eq_panic.


#
#  main():
#
routefile=${1:-"https://raw.githubusercontent.com/openshift-qe/v3-testfiles/master/routing/unsecure/route_unsecure.json"}
ntimes=${2:-50}

for i in `seq ${ntimes}`; do
  _simulate_eq_panic "worker_${i}" "${routefile}" &
done

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:1640

*** Bug 1464475 has been marked as a duplicate of this bug. ***