On Fri, Oct 11, 2024 at 03:00:23PM +0200, Christian Schulte wrote:
> On 10/11/24 13:57, Stuart Henderson wrote:
> > On 2024-10-09, obsdml@loopw.com <obsdml@loopw.com> wrote:
> >>> In a second server I have upgraded from 7.5 i386 to 7.6 i386 but server sees only 4GB of RAM
> >>
> >>> Is anybody with similar experiences? Any ideas how to fix RAM?
> >>
> >> run 64bit OpenBSD
> >>
> >> 32bit address space is limited to a max of 4GB**, and some of that is eaten up by PCI devices, etc.
> >> ** PAE can work around this, but I'm not sure if OpenBSD supports PAE at all (and theres other issues/caveats with using PAE of course, including speed and security)
> >
> > OpenBSD does support PAE on i386, but not for increasing address space,
> > just for W^X. See /sys/arch/i386/i386/pmapae.c r1.28.
> >
> >
>
> Hmm. Why not give up on i386 and make that i686 instead (Pentium Pro)?
> What I mean by this. Rename the current i386 to i686 by compiling it for
> i686 and update the pmap to support more than 4GB physical RAM (PAE).
> Supporting i386 is like supporting 68030.
That's such a trivial task you should be able to finish it over the
weekend. We all wait for your diff on Monday.
--
:wq Claudio
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