-----BEGIN PGP SIGNED MESSAGE-----> On Fri, Jun 09, 2006 at 01:53:34PM
+1200, Miskell, Craig wrote:
On Fri, Jun 09, 2006 at 12:25:16PM +1200, Miskell, Craig wrote:
- 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 beconstructed based on BIOS output or other requirements. See the memmap=nn@ss option description.
memmap=nn[KMG]$ss[KMG] [KNL,ACPI] Mark specific memoryas reserved.
Region of memory to be used, fromss 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.
There are not varying opinions. Using @ (instead of $) is a valid syntax if you want to _force_ the kernel to use that region :)
Sorry, I meant "mem" vs "mmmap".
I also thought that @ meant *only* use the specified region, but in hindsight that is not quite right. If I now understand correctly, @ forces the kernel to use memory it would not otherwise, and $ forces it to ignore memory that it would otherwise use. Is that correct?
Craig ======================================================================= Attention: The information contained in this message and/or attachments from AgResearch Limited is intended only for the persons or entities to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipients is prohibited by AgResearch Limited. If you have received this message in error, please notify the sender immediately. =======================================================================