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Date:      Mon, 28 Jul 1997 19:31:03 +0100 (BST)
From:      Jim Dixon <jdd@vbc.net>
To:        David Greenman <dg@root.com>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: MAX physical memory for FreeBSD ? 
Message-ID:  <Pine.BSI.3.91.970728192812.25290f-100000@avon-gw.uk1.vbc.net>
In-Reply-To: <199707220814.BAA12568@implode.root.com>

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On Tue, 22 Jul 1997, David Greenman wrote:

> >>    There isn't any specific limit, but some kernel parameters need to be
> >> tweaked before more than 256MB can be used. 
> >
> >Which?  We have a machine (a root name server) that needs to be brought
> >up to 512 MB urgently.
> 
>    Ugh. Actually, the kernel virtual address space must be increased and this
> requires, in addition to changing some kernel parameters (which are hardcoded
> in a couple of source files), that you do a "make world" to fix certain
> kernel start address assumptions that are in some of the system utilities.
>    Patches attached. Note that the process limit increases aren't strictly
> necessary, but are probably desired.

-- message from the person applying the patches :-( --------------------

> > FreeBSD 2.2.2-RELEASE #0: Tue Jul 29 02:32:20 BST 1997
> >     gordon@kg1.uk1.vbc.net:/usr/src/sys/compile/NS
> > CPU: Pentium (132.96-MHz 586-class CPU)
> >   Origin = "GenuineIntel"  Id = 0x52c  Stepping=12
> >   Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
> > real memory  = 402653184 (393216K bytes)
> > avail memory = 386772992 (377708K bytes)
> > 
> > Any idea of what version of freebsd these patches were applied to?
> 
> I believe that whatever info I had I sent you.

Well, after applying the patches, I now get:

  panic: bouce memory out of range

during boot.

------------------------------------------------------------------------

Any ideas ??

--
Jim Dixon                  VBCnet GB Ltd           http://www.vbc.net
tel +44 117 929 1316                             fax +44 117 927 2015




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