I have a couple of dell poweredge sc420s, precision workstation 650s and Debian Sarge 3.1 refuses to recognize more than a GB of RAM. The bios recognizes all of the memory. Does anyone have any clue?

TIA,

Kensani

could you do all these and posti it?

You need to enable HIGHMEM in the kernel config when compiling or install a Debian kernel with it enabled.

free -m

total used free shared buffers cached
Mem: 885 529 355 0 49 182
-/+ buffers/cache: 297 587
Swap: 2588 0 2588

cat /proc/meminfo

MemTotal: 906736 kB
MemFree: 364448 kB
Buffers: 50564 kB
Cached: 187144 kB
SwapCached: 0 kB
Active: 449444 kB
Inactive: 51460 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 906736 kB
LowFree: 364448 kB
SwapTotal: 2650684 kB
SwapFree: 2650684 kB
Dirty: 16 kB
Writeback: 0 kB
Mapped: 320548 kB
Slab: 34116 kB
Committed_AS: 408804 kB
PageTables: 636 kB
VmallocTotal: 122800 kB
VmallocUsed: 4264 kB
VmallocChunk: 118036 kB

dmesg|less

ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCI1.PCI2._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCI1.PCI3._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCI4._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 10 *11 12 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 *9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 *10 11 12 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 *11 12 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11 12 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 10 11 12 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 10 *11 12 15)
Linux Plug and Play Support v0.97 (c) Adam Belay
PnPBIOS: Scanning system for PnP BIOS support...
PnPBIOS: Found PnP BIOS installation structure at 0xc00fe2d0
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xe2f4, dseg 0x40
pnp: 00:00: ioport range 0x800-0x8df could not be reserved
pnp: 00:00: ioport range 0xc00-0xc7f has been reserved
PnPBIOS: 15 nodes reported by PnP BIOS; 15 recorded by driver
PCI: Using ACPI for IRQ routing
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 169
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 177
ACPI: PCI interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 185
ACPI: PCI interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 193
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 185
ACPI: PCI interrupt 0000:00:1f.3[B] -> GSI 17 (level, low) -> IRQ 201
ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 17 (level, low) -> IRQ 201
ACPI: PCI interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 169
ACPI: PCI interrupt 0000:03:0e.0[A] -> GSI 24 (level, low) -> IRQ 209
ACPI: PCI interrupt 0000:05:0c.0[A] -> GSI 20 (level, low) -> IRQ 217
number of MP IRQ sources: 15.
number of IO-APIC #2 registers: 24.
number of IO-APIC #3 registers: 24.
number of IO-APIC #4 registers: 24.
testing the IO APIC.......................
IO APIC #2......
.... register #00: 02000000
....... : physical APIC id: 02
....... : Delivery Type: 0
....... : LTS : 0
.... register #01: 00178020
....... : max redirection entries: 0017
....... : PRQ implemented: 1
.... register #02: 00000000
....... : arbitration: 00
.... register #03: 00000001
....... : Boot DT : 1
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 000 00 1 0 0 0 0 0 0 00
01 001 01 0 0 0 0 0 1 1 39
02 001 01 0 0 0 0 0 1 1 31
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 001 01 0 0 0 0 0 1 1 51
06 001 01 0 0 0 0 0 1 1 59
07 001 01 0 0 0 0 0 1 1 61
08 001 01 0 0 0 0 0 1 1 69
09 001 01 0 1 0 0 0 1 1 71
0a 001 01 0 0 0 0 0 1 1 79
0b 001 01 0 0 0 0 0 1 1 81
0c 001 01 0 0 0 0 0 1 1 89
0d 001 01 0 0 0 0 0 1 1 91
0e 001 01 0 0 0 0 0 1 1 99
0f 001 01 0 0 0 0 0 1 1 A1
10 001 01 1 1 0 1 0 1 1 A9
11 001 01 1 1 0 1 0 1 1 C9
12 001 01 1 1 0 1 0 1 1 B9
13 001 01 1 1 0 1 0 1 1 B1
14 001 01 1 1 0 1 0 1 1 D9
15 000 00 1 0 0 0 0 0 0 00
16 000 00 1 0 0 0 0 0 0 00
17 001 01 1 1 0 1 0 1 1 C1
IO APIC #3......
.... register #00: 03000000
....... : physical APIC id: 03
....... : Delivery Type: 0
....... : LTS : 0
.... register #01: 00178020
....... : max redirection entries: 0017
....... : PRQ implemented: 1
....... : IO APIC version: 0020
.... register #02: 03000000
....... : arbitration: 03
.... register #03: 00000001
....... : Boot DT : 1
---cut

I have installed stock debian kernels on systems with 2GB + and it always recognize all of the memory.


TIA,

Kensani

You are right:

#
# Firmware Drivers
#
CONFIG_EDD=m
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
CONFIG_MATH_EMULATION=y
CONFIG_MTRR=y
# CONFIG_EFI is not set
# CONFIG_REGPARM is not set


I have to recompile the kernel.

Thanks for the tip,

Kensani

Your welcome now if you have 4gb of memory it is only going to show up as ~3.5gb or so as that is a limitation for 32bit, if you were running 64bit machine/kernel that limitation goes away I believe.