Darryl wrote:
Quoting "Wolfgang S. Rupprecht"
>To see your memory layout check /proc/mtrr.
Ok, this is from 32bit PAE kernel:
$ cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1
reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1
reg02: base=0xc0000000 (3072MB), size= 256MB: write-back, count=1
reg03: base=0xd0000000 (3328MB), size= 128MB: write-combining, count=1
> reset to factory "optimized" settings.
Did that after the last BIOS update.
> select mtrr discontinuous (was contigious)
That option disappeared with a BIOS update actually. a new one popped up
regarding Virtual stuff though.
> select mtrr hardware mapping (was disabled)
> select iommu 128k (was disabled)
BIOS doesn't have those options.
I tried downloading the latest/greatest 2.6.21 kernel and compiling my
own 32bit "PAE" & "regular" kernels but they did the same thing.
"regular" sees all the memory but tells me to use a PAE kernel and "PAE"
won't use all the memory and crashes on boot without mem=4095m. A
little frustrating since the "regular" kernel and memtest86 see all the
memory. The good news is that the on-board NIC is natively supported in
.21 though :-/
The M2V BIOS was just updated to 1802 but it didn't make a difference
for kernel 2.6.21-3228.fc7PAE which would panic on boot with a
mount: could not find filesystem '/dev/root'
message. Adding 'mem=4096m' to the command line would allow the system
to boot but free would show '3375576 total' which is some 700MB shy.
New kernel 2.6.22.1-27.fc7PAE now boots without command line options and:
free
total used free shared buffers cached
Mem: 4149648 3964376 185272 0 174440 3586788
-/+ buffers/cache: 203148 3946500
Swap: 0 0 0
is showing what I had hoped for originally :-) /proc/mtrr shows the same
as it did before:
# cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1
reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1
reg02: base=0xc0000000 (3072MB), size= 256MB: write-back, count=1
reg03: base=0xd0000000 (3328MB), size= 128MB: write-combining, count=1
is that correct?
