mike@BRL.ARPA (02/23/87)
Did anybody know that on 4.3 BSD, when timed is started with the -M flag, but it is not running as the master, that it holds open a socket listening for ICMP messages, yet it neglects to read them? On a system that uses PING for testing, etc, this can result in a great many MBUFs being nailed down and ignored (several hundred in this afternoon's debacle)? This isn't enormously harmful, unless you are running low on MBUFs, but can be a surprising bit of behavior. I dont' have a fix, and I'm not planning on working on one. I did, however, modify Phil's PMON program to trace the quantity of I/O buffered in sockets, which is very interesting indeed. Best, -Mike