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Date: Wed, 27 Feb 2013 20:46:35 -0500
From: Glen Barber <gjb@FreeBSD.org>
To: Darren Pilgrim <list_freebsd@bluerosetech.com>
Subject: Re: Building RELENG_9 (or RELENG_9_*) on a small machine?
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On Wed, Feb 27, 2013 at 05:41:17PM -0800, Darren Pilgrim wrote:
> So I have this VM which only has 256 MB of memory and 9.1-R installed.=20
> I want to update it to RELENG_9, but buildworld swaps so bad it grinds=20
> nearly to a halt.  Even make -j1 -B runs into very heavy swapping.  So=20
> two questions:
>=20
> 1. Is there anything I can do to set a limit on how much memory the=20
> compiler uses?
>=20

You can disable building clang with this line in /etc/src.conf:

    WITHOUT_CLANG=3Dyes

> 2. If I crossbuild for this machine, can I get away with doing=20
> buildworld on a buildbox, ship the obj tree, and do installworld and=20
> mergemaster on the VM?  It's been a few enternities since I did a cross=
=20
> build and back then it was crossbuilding releases.

Yes, that should work.

Glen


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