Author: andre Date: Tue Oct 23 16:33:43 2012 New Revision: 241955 URL: http://svn.freebsd.org/changeset/base/241955
Log: Note the removal of the ZERO_COPY_SOCKETS kernel option in r241931 and provide a proper explanation. Modified: head/UPDATING Modified: head/UPDATING ============================================================================== --- head/UPDATING Tue Oct 23 16:12:17 2012 (r241954) +++ head/UPDATING Tue Oct 23 16:33:43 2012 (r241955) @@ -25,6 +25,17 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 10 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 20121023: + The ZERO_COPY_SOCKET kernel option has been removed and + split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. + NB: SOCKET_SEND_COW uses the VM page based copy-on-write + mechanism which is not safe and may result in kernel crashes. + NB: The SOCKET_RECV_PFLIP mechanism is useless as no current + driver supports disposeable external page sized mbuf storage. + Proper replacements for both zero-copy mechanisms are under + consideration and will eventually lead to complete removal + of the two kernel options. + +20121023: The IPv4 network stack has been converted to network byte order. The following modules need to be recompiled together with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"