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From: Andre Oppermann <andre@FreeBSD.org>
Date: Tue, 23 Oct 2012 14:25:37 +0000 (UTC)
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Subject: svn commit: r241932 - head/share/man/man9
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Author: andre
Date: Tue Oct 23 14:25:37 2012
New Revision: 241932
URL: http://svn.freebsd.org/changeset/base/241932

Log:
  Update zero_copy(9) man page to note the renamed kernel options
  and to warn about unsafeness of COW based sends.

Modified:
  head/share/man/man9/zero_copy.9

Modified: head/share/man/man9/zero_copy.9
==============================================================================
--- head/share/man/man9/zero_copy.9	Tue Oct 23 14:19:44 2012	(r241931)
+++ head/share/man/man9/zero_copy.9	Tue Oct 23 14:25:37 2012	(r241932)
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 5, 2004
+.Dd October 23, 2012
 .Dt ZERO_COPY 9
 .Os
 .Sh NAME
@@ -33,7 +33,8 @@
 .Nm zero_copy_sockets
 .Nd "zero copy sockets code"
 .Sh SYNOPSIS
-.Cd "options ZERO_COPY_SOCKETS"
+.Cd "options SOCKET_SEND_COW"
+.Cd "options SOCKET_RECV_PFLIP"
 .Sh DESCRIPTION
 The
 .Fx
@@ -155,6 +156,8 @@ variables respectively.
 .Xr sendfile 2 ,
 .Xr socket 2 ,
 .Xr ti 4
+.Sh BUGS
+The COW based send mechanism is not safe and may result in kernel crashes.
 .Sh HISTORY
 The zero copy sockets code first appeared in
 .Fx 5.0 ,