Re: 3.3G RAM limit?

Andy Ruhl <[email protected]> Wed, 8 Apr 2020 14:32:42 -0700

Newsgroups	gmane.os.netbsd.ports.i386
Message-ID	<CAJcb3fqFgym+ba+TXC39JAd-eB9yq6TXbvQAkoB2yN37sX1CsQ@mail.gmail.com>

On Wed, Apr 8, 2020 at 2:21 PM Joerg Sonnenberger <[email protected]> wrote:
>
> On Wed, Apr 08, 2020 at 10:26:53PM +0200, Martin Husemann wrote:
> > On Wed, Apr 08, 2020 at 04:07:29PM -0400, Mouse wrote:
> > > I have a fuzzy memory that there's some kind of limit that leads to
> > > i386 topping out at three-point-something gigs of RAM.  Could someone
> > > remind me of details?
> >
> > The BIOS reserves some window below 4G for PCI IO ranges, typically at
> > the end of the 4G VA space (size depending on exact BIOS and sometimes
> > settings).
>
> ...and it can be somewhat worked around with PAE.

PAE is broken on my machine in 9.0. Would love to know if someone else
is using it in 9.0 without problems. I opened a PR.

Andy