CARP vs. VRRP

Jeroen Ruigrok supplied these links about patent issues with Cisco’s VRRP during a thread about importing OpenBSD’s CARP as part of pf.

http://www.in-addr.de/pipermail/lvs-users/2001-November/004135.html
http://kerneltrap.org/node/view/477/1567
http://kerneltrap.org/comment/reply/477/1567
http://marc.theaimsgroup.com/?l=openbsd-misc&m=102883972229241&w=2
https://www1.ietf.org/mail-archive/working-groups/vrrp/current/msg00318.html

Build from scratch

Matt Dillon’s reorganizing some of the header files; if you build a new kernel anytime soon, make sure you build from scratch using ‘config -r’, as some of the old header files have now vanished.

Network changes starting

Jeffrey Hsu and Matt Dillon’s network changes are being committed – the first third is in, according to a commit by Matt.

Matt describes the plan thusly:

“Basically the goal of this work is to isolate and serialize PCBs in specific threads in order to (A) not have to lock them and (B) improve cache locality for ISR processing loops as well as for data. Isolating a network PCB means dealing with the points where the PCB talks to other parts of the system. There are three points where this happens:

  • incoming packets go through preprocessing (e.g. IP) before
    being routed to the target protocol & PCB (e.g. TCP and UDP).

  • user syscalls operate on PCBs
  • timers and such initiate work related to particular PCBs”

I wish I knew what a PCB was.

Slightly broken

Matt Dillon’s putting in some material from FreeBSD-5, so if PNPBIOS is defined, you may not produce a working kernel during the next few days.

update: PNPBIOS should not be enabled if you have a AMD64 machine, and the K8V motherboard, as that appears to be broken.

Bugzilla brought in

Jeroen Ruigrok is setting up Bugzilla for tracking bugs/requests for DragonFly. As part of the process, there’s some 6,000 (!) items brought over from FreeBSD-4. No link yet…

Things to come

In a thread about booting media, Matt Dillon noted he was going to:

  • Look at Jeff Hsu’s TCP thread code
  • implement variant symlinks
  • start VFS messaging and environments

VFS will make a number of other things – especially a new port system – possible.