recvAck=100 xmitSeq=117 ack=117 -> index=16
int length  = PPTP_XMIT_WIN - (index+1) = -1
size_t len  = sizeof(pptptime_t) * (-1) = 0xfffffffffffffff8 (18446744073709551608)
kernel timeSent[] = pptptime_t[16] (128 bytes), index 16 is 8 bytes past end
---with --bcopy:
recvAck=100 xmitSeq=117 ack=117 -> index=16
int length  = PPTP_XMIT_WIN - (index+1) = -1
size_t len  = sizeof(pptptime_t) * (-1) = 0xfffffffffffffff8 (18446744073709551608)
kernel timeSent[] = pptptime_t[16] (128 bytes), index 16 is 8 bytes past end
attempting bcopy(dst=timeSent, src=timeSent+17, len=0xfffffffffffffff8)...
unreachable
exit=0 (signal 11 expected)