swap questions freebsd11/arm6

[John]

Hello list,

sorry about all my questions. I'm learning, honest.

OK I found that having a swapfile after the fact, makes it not appear in
top. It seemed that some of the system saw the swap at /usr/swap0 but
other parts didn't use it. So in an effort to get around this, I
got another spare usb stick and put swap on it. The stick is 16GB.

I now get the folllowing in messages:

Sep  8 15:26:34 potato kernel: warning: total configured swap (3906304 pages) 
exceeds maximum recommended amount (223328 pages).                                                                                                    
Sep 8 15:26:34 potato kernel: warning: increase kern.maxswzone or reduce 
amount of swap.                                                                                                                                           

Thing is, I'd quite like a huge amount of swap given the following:

1. not too concerned about speed here, as long as it's stable
2. things like svnlite choke on many writes

There's not much documentation about kern.maxswzone. I put the
following in /boot/loader.conf :

kern.maxswzone=3906304

it still complains.

Please can anyone give pointers how to fix this?
thanks,
-- 
John