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From: jwest@jersey.sw.stratus.com (Jonathan West)
Newsgroups: comp.unix.questions
Subject: STREAMS putmsg of M_PCPROTO
Message-ID: <3095@lectroid.sw.stratus.com>
Date: 14 Nov 90 20:29:28 GMT
Sender: usenet@lectroid.sw.stratus.com
Reply-To: jwest@jersey.sw.stratus.com (Jonathan West)
Organization: Stratus Computer, Inc.
Lines: 6

My understanding is that priority messages bypass flow control,
and a M_PCPROTO message can carry many M_DATA blocks following 
the initial M_PCPROTO block.  If this is correct, how can STREAMS
defend against a bad user process which continuously sends large
M_PCPROTO messages downstream?  I believe the upstream case is handled
by the stream head discarding them.  Thanks!