The following reply was made to PR kern/29971; it has been noted by GNATS.

From: YAMAMOTO Takashi <yamt@netbsd.org>
To: gnats-bugs@netbsd.org
Cc: 
Subject: PR/29971 CVS commit: src/sys/netinet
Date: Mon, 18 Apr 2005 21:50:25 +0000 (UTC)

 Module Name:	src
 Committed By:	yamt
 Date:		Mon Apr 18 21:50:25 UTC 2005
 
 Modified Files:
 	src/sys/netinet: ip_input.c ip_output.c tcp_output.c tcp_subr.c
 	    udp_usrreq.c
 
 Log Message:
 fix problems related to loopback interface checksum omission.  PR/29971.
 
 - for ipv4, defer decision to ip layer as h/w checksum offloading does
   so that it can check the actual interface the packet is going to.
 - for ipv6, disable it.
   (maybe will be revisited when it implements h/w checksum offloading.)
 
 ok'ed by Jason Thorpe.
 
 
 To generate a diff of this commit:
 cvs rdiff -r1.213 -r1.214 src/sys/netinet/ip_input.c
 cvs rdiff -r1.150 -r1.151 src/sys/netinet/ip_output.c
 cvs rdiff -r1.129 -r1.130 src/sys/netinet/tcp_output.c
 cvs rdiff -r1.189 -r1.190 src/sys/netinet/tcp_subr.c
 cvs rdiff -r1.134 -r1.135 src/sys/netinet/udp_usrreq.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.