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Date:      23 Feb 2003 14:41:42 -0500
From:      Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: datasize higher than 512Mo or 2 Gb ?
Message-ID:  <44bs123hu1.fsf@be-well.ilk.org>
In-Reply-To: <20030221110301.GA10096@trefle.ens.fr>
References:  <20030221110301.GA10096@trefle.ens.fr>

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Jacques Beigbeder <Jacques.Beigbeder@ens.fr> writes:

> Someone said on Jan 16th:
> 	Adding kern.maxdsiz="2147483647" to /boot/loader.conf ...
> 
> This means that now kern.maxdsiz is 2 Gb.
> 
> Does FreeBSD 5.0 supports higher values? I now have a PC
> with 4 Gb of memory... and I want to use all that
> memory for a single process.
> 
> Or is there some patch to raise this 2Gb limit?

You'll probably need to adjust the KVA_PAGES (which, if I recall
correctly, splits the space evenly between kernel and user space), but
there's no way you can get all the way to 4GB, because the kernel
needs *some* of it.

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