> On Fri, Jun 09, 2006 at 12:25:16PM +1200, Miskell, Craig wrote:
> > 5) Playing with memmap to exclude mem from 610-640K from
> being used by
> > the kernel.
>
> How about these kernel options ?
>
> memmap=exactmap [KNL,IA-32] Enable setting of an exact
> E820 memory map, as specified by the user.
> Such memmap=exactmap lines can be
> constructed based on
> BIOS output or other requirements.
> See the memmap=nn@ss
> option description.
>
> memmap=nn[KMG]$ss[KMG]
> [KNL,ACPI] Mark specific memory as reserved.
> Region of memory to be used, from ss to ss+nn.
I used memmap=3K$637K to avoid the 3K segment just below 640K (which my
BIOS diagnostics told me was reserved), with no luck. I bumped that up
to memmap=30K$610K (lots of padding), also without luck.
Similarly, I have tried:
memmap=240M@16M (no luck)
And
mem=240M@16M ( no luck)
as there seems to be some varying opinions on the 'net as to which of
those is correct syntax.
Of course, I might be wrong about the base cause in which case none of
this is relevant ;-)
Ta,
Craig
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