[B.A.T.M.A.N.] alfred dies without log-entries

ref: alfred ver 2015.1 / .2

alfred process dies (not in ps ) without leaving any log entry for reason why

alfred -r 64 : can't connect to unix socket : Connetion refused

remains : /tmp/run/ alfred.pid alfred.sock

batadv-vis still in process-list and shows data

alfred stop does not kill the remains start / restart / reload does not bring alfred up

system reboot required

occurence : frequent irregular at start or after some time

afred.facters disabled

does anybody have any hint or idea ?

cheers 3zl