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Date:      Sat, 19 Mar 2016 14:37:14 +0200
From:      Anton Sayetsky <vsasjason@gmail.com>
To:        Polytropon <freebsd@edvax.de>
Cc:        Timothy Macintyre <tmacintyre@outlook.com>,  "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: FreeBSD 9.0 16kb Page Size
Message-ID:  <CAA2O=b_3Yrd3fydDrw-H6AY7UHh-6=T0Pvuig9D2Gs7VUV9tMg@mail.gmail.com>
In-Reply-To: <20160319132752.932a5a1e.freebsd@edvax.de>
References:  <VI1PR05MB1343B48CB99607A90FB15C09DA8C0@VI1PR05MB1343.eurprd05.prod.outlook.com> <20160319132752.932a5a1e.freebsd@edvax.de>

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2016-03-19 14:27 GMT+02:00 Polytropon <freebsd@edvax.de>:
> On Fri, 18 Mar 2016 11:11:17 +0000, Timothy Macintyre wrote:
>> I'm trying to do some testing on FreeBSD 9.0 with the page size
>> set to 16kb on amd64 but I'm having trouble building a stable kernel.
>>
>> I've changed the PAGE_SHIFT to 14 under param.h and also updated
>> pmap.h/c with the following values so it doesn't complain about
>> invalid struct sizes at compile but I'm getting a crash after
>> install and reboot. Is there something I'm missing here?
>>
>>
>> #define _NPCM 12
>> #define _NPCPV 677
>
> You should probably repeat that experiment with a currently
> supported code base. FreeBSD 9.0 is already EOL. The best
> idea would be to use the FreeBSD 10.2 release (amd64) and
> make the required changes.
>
> In case you have a valid reason not to use FreeBSD 10, but
> instead need to keep FreeBSD 9, try the most current release,
> which is FreeBSD 9.3. Remember: it's a legacy release, not a
> production release.
You're wrong. I've just checked official FreeBSD site:
>LATEST RELEASES
>Production: 10.2, 10.1, 9.3

> If you have done this and you're still experiencing problems,
> write to the freebsd-hackers@ mailing list, which is primarily
> intended for higher-level "Technical Discussions relating to
> FreeBSD", as freebsd-questions@ is mostly a users' question
> list (less technical, often focused on "easy" problems).
> Messing with the bowels of the kernel's memory management
> isn't a typical "user question". ;-)



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