FreeBSD 7 and multiple IP (mijail-patch in 6.x)

Bjoern A. Zeeb bzeeb-lists at
Thu Apr 3 18:59:28 UTC 2008

On Mon, 31 Mar 2008, Johan Ström wrote:


> I got a machine running 6.2 right now, which is being replaced. And since SMP 
> performance is much better on 7.x I'd like to go with 7.0 (and many ppl have 
> indeed verified that it works good on this box, HP DL360 G5)...
> But, now when I start to setup the machine, I recalled that i've patched the 
> 6.2 box with the freebsd mijail patch 
> (
> However, I cannot find anywhere about FreeBSD 7 and a similar patch. A quick 
> look at the patch vs the 7.x source tells me it won't apply cleanly, but from 
> what I've seen quickly, it could maybe be done. The differences I've seen 
> doesn't look too advanced, but then again, I'm  not a kernel developer...
> So, I'd like to know if anyone considered this on 7.x, or if anyone can tell 
> me immediately that this wont work or will be LOTS of work, or just some 
> patch line adjusting? Ie, how big are the changes from 6.x to 7.x in these 
> sections?

I had planned to have a patch for multiv4/v6 jails last month but it's not
yet publicly available. I have sent it off to some people for review.

In case the above is a successor of pjd's multi-ip v4 jail patch I can
give you a plain forward port to a FreeBSD 7 system (which might have
possible locking issues I have never experienced).

All depends on how quickly you need it.


Bjoern A. Zeeb                                 bzeeb at Zabbadoz dot NeT
Software is harder than hardware  so better get it right the first time.

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