Prevent race condition between ACK and path being removed (#863)
Prevent race condition between ACK and path being removed (#863)


Oncilla/scion,dmpiergiacomo/scion,klausman/scion,Oncilla/scion,netsec-ethz/scion,netsec-ethz/scion,klausman/scion,klausman/scion,FR4NK-W/osourced-scion,dmpiergiacomo/scion,dmpiergiacomo/scion,FR4NK-W/osourced-scion,dmpiergiacomo/scion,FR4NK-W/osourced-scion,dmpiergiacomo/scion,FR4NK-W/osourced-scion,dmpiergiacomo/scion,klausman/scion,netsec-ethz/scion,klausman/scion,Oncilla/scion,FR4NK-W/osourced-scion,Oncilla/scion,netsec-ethz/scion