SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)
ifaddr cache = 0xfffffe00585e0300 is deleted
if_delmulti_locked: detaching ifnet instance 0xfffffe0054213000
if_delmulti_locked: detaching ifnet instance 0xfffffe0054213000
if_delmulti_locked: detaching ifnet instance 0xfffffe0054213000
tap4: link state changed to DOWN
if_delmulti_locked: detaching ifnet instance 0xfffffe0054213000
if_delmulti_locked: detaching ifnet instance 0xfffffe0054213000
if_delmulti_locked: detaching ifnet instance 0xfffffe0054213000