Re: Why FC3 doesn't see 4Gb of RAM?

At 10.19 25/08/2005, you wrote:
>At 23.17 24/08/2005, Alexander Dalloz wrote:
>
> >Am Mi, den 24.08.2005 schrieb Andy Pieters um 22:48:
> >
> >Don't top-post please.
> >
> >> IIRC, you need to use the hugemem kernel!  I don't seem to remember there
> >> being a combination of hugemen and smp, but that can be resolved
>by doing a
> >> compile-your-own-kernel, which isn't so hard after all.
> >
> >"The other difference with the hugemem kernel is that the kernel and
> >userspace address spaces are split 4GB/4GB, meaning that with the
> >hugemem kernel, a userspace program has access to its 4GB."
> >
> >The problem is that Roberto's hardware (motherboard + BIOS) does not
> >remap the memory area used by I/O, which must be inside the 4GB on 32bit
> >systems, beyond the 4GB barrier. A kernel with the 4G/4G patch would not
> >change that.
>
>Ok! Now I understand the problem, so do you mean that I have to look at
>BIOS upgrade in order to "resolve" (partially?) the problem?

After BIOS upgrade and also reduced the AGP aperture size the memory layout
look much much better :-)!!!

Current is:

The previous one was:

so I got other ~570Mb. That's nice :-)!

BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 00000000efe30000 (usable)
 BIOS-e820: 00000000efe30000 - 00000000efe3e6d5 (ACPI NVS)
 BIOS-e820: 00000000eff10000 - 00000000eff30000 (reserved)
 BIOS-e820: 00000000eff30000 - 00000000eff40000 (ACPI data)
 BIOS-e820: 00000000eff40000 - 00000000efff0000 (ACPI NVS)
 BIOS-e820: 00000000efff0000 - 00000000f0000000 (reserved)
 BIOS-e820: 00000000fecf0000 - 00000000fecf1000 (reserved)
 BIOS-e820: 00000000fed20000 - 00000000feda0000 (reserved)
2942MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000ff780
Using x86 segment limits to approximate NX protection
On node 0 totalpages: 982576
  DMA zone: 4096 pages, LIFO batch:1
  Normal zone: 225280 pages, LIFO batch:31
  HighMem zone: 753200 pages, LIFO batch:31
DMI 2.3 present.
Using APIC driver default
ACPI: RSDP (v000 ACPIAM                                ) @ 0x000f62c0
ACPI: RSDT (v001 INTEL  D865PERL 0x20050213 MSFT 0x00000097) @ 0xeff30000
ACPI: FADT (v002 INTEL  D865PERL 0x20050213 MSFT 0x00000097) @ 0xeff30200
ACPI: MADT (v001 INTEL  D865PERL 0x20050213 MSFT 0x00000097) @ 0xeff30300
ACPI: ASF! (v016 LEGEND I865PASF 0x00000001 MSFT 0x0100000d) @ 0xeff345f0
ACPI: WDDT (v001 INTEL  OEMWDDT  0x00000001 MSFT 0x0100000d) @ 0xeff34689
ACPI: DSDT (v001 INTEL  D865PERL 0x00000006 MSFT 0x0100000d) @ 0x00000000
ACPI: PM-Timer IO Port: 0x408
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Processor #0 15:4 APIC version 20
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
Processor #1 15:4 APIC version 20
ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at f0000000 (gap: f0000000:0ecf0000)
Built 1 zonelists
Kernel command line: ro root=LABEL=/ rhgb quiet
mapped APIC to ffffd000 (fee00000)
mapped IOAPIC to ffffc000 (fec00000)
Initializing CPU#0
CPU 0 irqstacks, hard=c041f000 soft=c03ff000
PID hash table entries: 4096 (order: 12, 65536 bytes)
Detected 2994.582 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)

Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 5931.00 BogoMIPS (lpj=2965504)

[...snip..]

>
> >
> >> Andy
> >
> >Alexander
>
>Roberto Fichera.
>
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