Hello,
I've got 8 GB RAM installed, but linux reports 7,3 GB. Where is the
missing RAM (700 MB)?
free
total used free shared buffers cached
Mem: 7706580 5271096 2435484 0 79232 3049120
-/+ buffers/cache: 2142744 5563836
Swap: 8393956 0 8393956
The motherboard is a GA-MA78GM-S2H (64bit, AMD) with a on board Radeon
HD 3200 VGA card. The card uses 256 MB of RAM - so 444 MB of RAM are
missing. Where are they gone?
kernel: 2.6.34.7-33-desktop (OpenSuSE 11.3)
dmesg
Linux version 2.6.34.7-33-desktop (geeko@buildhost) (gcc version 4.4.1
[gcc-4_4-branch revision 150839] (SUSE Linux) ) #1 SMP PREEMPT
2010-11-09 20:08:44 +0100
Command line:
root=/dev/disk/by-id/scsi-SATA_WDC_WD5000AACS-_WD-WCAUF1158341-part1
splash=silent quiet nmi_watchdog=0 iommu=noagp,memaper=0 agp=off vga=0x376
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000afde0000 (usable)
BIOS-e820: 00000000afde0000 - 00000000afde3000 (ACPI NVS)
BIOS-e820: 00000000afde3000 - 00000000afdf0000 (ACPI data)
BIOS-e820: 00000000afdf0000 - 00000000afe00000 (reserved)
BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
BIOS-e820: 0000000100000000 - 0000000230000000 (usable)
NX (Execute Disable) protection: active
DMI 2.4 present.
e820 update range: 0000000000000000 - 0000000000001000 (usable) ==>
(reserved)
e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
No AGP bridge found
last_pfn = 0x230000 max_arch_pfn = 0x400000000
MTRR default type: uncachable
MTRR fixed ranges enabled:
00000-9FFFF write-back
A0000-BFFFF uncachable
C0000-C7FFF write-protect
C8000-FFFFF uncachable
MTRR variable ranges enabled:
0 base 0000000000 mask FF80000000 write-back
1 base 0080000000 mask FFE0000000 write-back
2 base 00A0000000 mask FFF0000000 write-back
3 base 00AFE00000 mask FFFFE00000 uncachable
4 base 0100000000 mask FF00000000 write-back
5 base 0200000000 mask FFE0000000 write-back
6 base 0220000000 mask FFF0000000 write-back
7 disabled
TOM2: 0000000230000000 aka 8960M
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
e820 update range: 00000000afe00000 - 0000000100000000 (usable) ==>
(reserved)
last_pfn = 0xafde0 max_arch_pfn = 0x400000000
e820 update range: 0000000000001000 - 0000000000010000 (usable) ==>
(reserved)
Scanning 1 areas for low memory corruption
modified physical RAM map:
modified: 0000000000000000 - 0000000000010000 (reserved)
modified: 0000000000010000 - 000000000009f800 (usable)
modified: 000000000009f800 - 00000000000a0000 (reserved)
modified: 00000000000f0000 - 0000000000100000 (reserved)
modified: 0000000000100000 - 00000000afde0000 (usable)
modified: 00000000afde0000 - 00000000afde3000 (ACPI NVS)
modified: 00000000afde3000 - 00000000afdf0000 (ACPI data)
modified: 00000000afdf0000 - 00000000afe00000 (reserved)
modified: 00000000e0000000 - 00000000f0000000 (reserved)
modified: 00000000fec00000 - 0000000100000000 (reserved)
modified: 0000000100000000 - 0000000230000000 (usable)
initial memory mapped : 0 - 20000000
found SMP MP-table at [ffff8800000f5570] f5570
init_memory_mapping: 0000000000000000-00000000afde0000
0000000000 - 00afc00000 page 2M
00afc00000 - 00afde0000 page 4k
kernel direct mapping tables up to afde0000 @ 16000-1b000
init_memory_mapping: 0000000100000000-0000000230000000
0100000000 - 0230000000 page 2M
kernel direct mapping tables up to 230000000 @ 19000-23000
RAMDISK: 37968000 - 37ff0000
ACPI: RSDP 00000000000f6ef0 00014 (v00 GBT )
ACPI: RSDT 00000000afde3000 00038 (v01 GBT GBTUACPI 42302E31 GBTU
01010101)
ACPI: FACP 00000000afde3040 00074 (v01 GBT GBTUACPI 42302E31 GBTU
01010101)
ACPI: DSDT 00000000afde30c0 069CD (v01 GBT GBTUACPI 00001000 MSFT
03000000)
ACPI: FACS 00000000afde0000 00040
ACPI: SSDT 00000000afde9b80 0028A (v01 PTLTD POWERNOW 00000001 LTP
00000001)
ACPI: HPET 00000000afde9e40 00038 (v01 GBT GBTUACPI 42302E31 GBTU
00000098)
ACPI: MCFG 00000000afde9e80 0003C (v01 GBT GBTUACPI 42302E31 GBTU
01010101)
ACPI: APIC 00000000afde9ac0 00084 (v01 GBT GBTUACPI 42302E31 GBTU
01010101)
ACPI: Local APIC address 0xfee00000
Scanning NUMA topology in Northbridge 24
No NUMA configuration found
Faking a node at 0000000000000000-0000000230000000
Initmem setup node 0 0000000000000000-0000000230000000
NODE_DATA [0000000100000000 - 0000000100013fff]
[ffffea0000000000-ffffea0007bfffff] PMD ->
[ffff880100200000-ffff880106dfffff] on node 0
Zone PFN ranges:
DMA 0x00000010 -> 0x00001000
DMA32 0x00001000 -> 0x00100000
Normal 0x00100000 -> 0x00230000
Movable zone start PFN for each node
early_node_map[3] active PFN ranges
0: 0x00000010 -> 0x0000009f
0: 0x00000100 -> 0x000afde0
0: 0x00100000 -> 0x00230000
On node 0 totalpages: 1965423
DMA zone: 56 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 3927 pages, LIFO batch:0
DMA32 zone: 14280 pages used for memmap
DMA32 zone: 701976 pages, LIFO batch:31
Normal zone: 17024 pages used for memmap
Normal zone: 1228160 pages, LIFO batch:31
Detected use of extended apic ids on hypertransport bus
ACPI: PM-Timer IO Port: 0x4008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled)
ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x03] dfl dfl lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 33, 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 low level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Using ACPI (MADT) for SMP configuration information
ACPI: HPET id: 0x10b9a201 base: 0xfed00000
SMP: Allowing 4 CPUs, 2 hotplug CPUs
nr_irqs_gsi: 24
early_res array is doubled to 64 at [1e000 - 1e7ff]
PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 00000000000f0000
PM: Registered nosave memory: 00000000000f0000 - 0000000000100000
PM: Registered nosave memory: 00000000afde0000 - 00000000afde3000
PM: Registered nosave memory: 00000000afde3000 - 00000000afdf0000
PM: Registered nosave memory: 00000000afdf0000 - 00000000afe00000
PM: Registered nosave memory: 00000000afe00000 - 00000000e0000000
PM: Registered nosave memory: 00000000e0000000 - 00000000f0000000
PM: Registered nosave memory: 00000000f0000000 - 00000000fec00000
PM: Registered nosave memory: 00000000fec00000 - 0000000100000000
Allocating PCI resources starting at afe00000 (gap: afe00000:30200000)
Booting paravirtualized kernel on bare hardware
setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:4 nr_node_ids:1
PERCPU: Embedded 28 pages/cpu @ffff880001e00000 s84136 r8192 d22360 u524288
pcpu-alloc: s84136 r8192 d22360 u524288 alloc=1*2097152
pcpu-alloc: [0] 0 1 2 3
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1934063
Policy zone: Normal
Kernel command line:
root=/dev/disk/by-id/scsi-SATA_WDC_WD5000AACS-_WD-WCAUF1158341-part1
splash=silent quiet nmi_watchdog=0 iommu=noagp,memaper=0 agp=off vga=0x376
bootsplash: silent mode.
PID hash table entries: 4096 (order: 3, 32768 bytes)
Checking aperture...
Node 0: aperture @ 3fe000000 size 32 MB
Aperture beyond 4GB. Ignoring.
Your BIOS doesn't leave a aperture memory hole
Please enable the IOMMU option in the BIOS setup
This costs you 32 MB of RAM
Mapping aperture over 32768 KB of RAM @ 20000000
PM: Registered nosave memory: 0000000020000000 - 0000000022000000
early_res array is doubled to 128 at [1e800 - 1f7ff]
Subtract (58 early reservations)
#1 [0001000000 - 0001d98ad8] TEXT DATA BSS
#2 [0037968000 - 0037ff0000] RAMDISK
#3 [0001d99000 - 0001d990fe] BRK
#4 [00000f5580 - 0000100000] BIOS reserved
#5 [00000f5570 - 00000f5580] MP-table mpf
#6 [000009f800 - 00000f0f00] BIOS reserved
#7 [00000f105c - 00000f5570] BIOS reserved
#8 [00000f0f00 - 00000f105c] MP-table mpc
#9 [0000010000 - 0000012000] TRAMPOLINE
#10 [0000012000 - 0000016000] ACPI WAKEUP
#11 [0000016000 - 0000019000] PGTABLE
#12 [0000019000 - 000001e000] PGTABLE
#13 [0100000000 - 0100014000] NODE_DATA
#14 [0001d99100 - 0001d9a100] BOOTMEM
#15 [0100014000 - 01000145a0] BOOTMEM
#16 [0100015000 - 0100016000] BOOTMEM
#17 [0100016000 - 0100017000] BOOTMEM
#18 [0100200000 - 0106e00000] MEMMAP 0
#19 [0001d9a100 - 0001db2100] BOOTMEM
#20 [0001db2100 - 0001dca100] BOOTMEM
#21 [0001dca100 - 0001de2100] BOOTMEM
#22 [0001de3000 - 0001de4000] BOOTMEM
#23 [0001d98b00 - 0001d98b41] BOOTMEM
#24 [0001d98b80 - 0001d98bc3] BOOTMEM
#25 [0001d98c00 - 0001d98e68] BOOTMEM
#26 [0001d98e80 - 0001d98ee8] BOOTMEM
#27 [0001d98f00 - 0001d98f68] BOOTMEM
#28 [0001d98f80 - 0001d98fe8] BOOTMEM
#29 [0001de2100 - 0001de2168] BOOTMEM
#30 [0001de2180 - 0001de21e8] BOOTMEM
#31 [0001de2200 - 0001de2268] BOOTMEM
#32 [0001de2280 - 0001de22e8] BOOTMEM
#33 [0001de2300 - 0001de2368] BOOTMEM
#34 [0001de2380 - 0001de23e8] BOOTMEM
#35 [0001de2400 - 0001de2468] BOOTMEM
#36 [0001de2480 - 0001de24a0] BOOTMEM
#37 [0001de24c0 - 0001de24e0] BOOTMEM
#38 [0001de2500 - 0001de2590] BOOTMEM
#39 [0001de25c0 - 0001de2650] BOOTMEM
#40 [0001e00000 - 0001e1c000] BOOTMEM
#41 [0001e80000 - 0001e9c000] BOOTMEM
#42 [0001f00000 - 0001f1c000] BOOTMEM
#43 [0001f80000 - 0001f9c000] BOOTMEM
#44 [0001de2680 - 0001de2688] BOOTMEM
#45 [0001de26c0 - 0001de26c8] BOOTMEM
#46 [0001de2700 - 0001de2710] BOOTMEM
#47 [0001de2740 - 0001de2760] BOOTMEM
#48 [0001de2780 - 0001de28b0] BOOTMEM
#49 [0001de28c0 - 0001de2910] BOOTMEM
#50 [0001de2940 - 0001de2990] BOOTMEM
#51 [0001de4000 - 0001dec000] BOOTMEM
#52 [0020000000 - 0022000000] BOOTMEM
#53 [0001de29c0 - 0001de29e0] BOOTMEM
#54 [0001f9c000 - 0005f9c000] BOOTMEM
#55 [0001e1c000 - 0001e3c000] BOOTMEM
#56 [0001e3c000 - 0001e7c000] BOOTMEM
#57 [000001f800 - 0000027800] BOOTMEM
Memory: 7630836k/9175040k available (4763k kernel code, 1313348k absent,
230856k reserved, 6620k data, 900k init)
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3200
Graphics (prog-if 00 [VGA controller])
Subsystem: Giga-byte Technology GA-MA78GM-S2H Motherboard
Flags: bus master, fast devsel, latency 0, IRQ 18
Memory at d0000000 (32-bit, prefetchable) [size=256M]
I/O ports at ee00 [size=256]
Memory at fdfe0000 (32-bit, non-prefetchable) [size=64K]
Memory at fde00000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at <unassigned> [disabled]
Capabilities: [50] Power Management version 3
Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
Kernel driver in use: fglrx_pci
Thanks for any hints,
kind regards,
Andreas
On 11/21/2010 08:02 PM, Andreas Hartmann wrote:
> I've got 8 GB RAM installed, but linux reports 7,3 GB. Where is the
> missing RAM (700 MB)?
...
> The motherboard is a GA-MA78GM-S2H (64bit, AMD) with a on board Radeon
> HD 3200 VGA card. The card uses 256 MB of RAM - so 444 MB of RAM are
> missing. Where are they gone?
Hi, ask your BIOS:
> BIOS-provided physical RAM map:
> BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
> BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
> BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
> BIOS-e820: 0000000000100000 - 00000000afde0000 (usable)
> BIOS-e820: 00000000afde0000 - 00000000afde3000 (ACPI NVS)
> BIOS-e820: 00000000afde3000 - 00000000afdf0000 (ACPI data)
> BIOS-e820: 00000000afdf0000 - 00000000afe00000 (reserved)
> BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
> BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
> BIOS-e820: 0000000100000000 - 0000000230000000 (usable)
It reports 7677M of usable mem. Or maybe your loader is cheating on you?
I doubt so...
regards,
--
js
On November 21, 2010, Jiri Slaby wrote:
> On 11/21/2010 08:02 PM, Andreas Hartmann wrote:
> > I've got 8 GB RAM installed, but linux reports 7,3 GB. Where is the
> > missing RAM (700 MB)?
>
> ...
>
> > The motherboard is a GA-MA78GM-S2H (64bit, AMD) with a on board Radeon
> > HD 3200 VGA card. The card uses 256 MB of RAM - so 444 MB of RAM are
> > missing. Where are they gone?
>
> Hi, ask your BIOS:
> > BIOS-provided physical RAM map:
> > BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
> > BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
> > BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
> > BIOS-e820: 0000000000100000 - 00000000afde0000 (usable)
> > BIOS-e820: 00000000afde0000 - 00000000afde3000 (ACPI NVS)
> > BIOS-e820: 00000000afde3000 - 00000000afdf0000 (ACPI data)
> > BIOS-e820: 00000000afdf0000 - 00000000afe00000 (reserved)
> > BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
> > BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
> > BIOS-e820: 0000000100000000 - 0000000230000000 (usable)
>
> It reports 7677M of usable mem. Or maybe your loader is cheating on you?
> I doubt so...
>
> regards,
I've got the same board, It doesn't seem my map is missing more than a few MB
out of 2G (gfx reservation is 128MB)
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
[ 0.000000] BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 0000000077de0000 (usable)
[ 0.000000] BIOS-e820: 0000000077de0000 - 0000000077de3000 (ACPI NVS)
[ 0.000000] BIOS-e820: 0000000077de3000 - 0000000077df0000 (ACPI data)
[ 0.000000] BIOS-e820: 0000000077df0000 - 0000000077e00000 (reserved)
[ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
I'm using the F5 bios if it helps any.
--
Thomas Fjellstrom
[email protected]
Jiri Slaby wrote:
> On 11/21/2010 08:02 PM, Andreas Hartmann wrote:
>> I've got 8 GB RAM installed, but linux reports 7,3 GB. Where is the
>> missing RAM (700 MB)?
> ...
>> The motherboard is a GA-MA78GM-S2H (64bit, AMD) with a on board Radeon
>> HD 3200 VGA card. The card uses 256 MB of RAM - so 444 MB of RAM are
>> missing. Where are they gone?
>
> Hi, ask your BIOS:
>
>> BIOS-provided physical RAM map:
>> BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
>> BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
>> BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
>> BIOS-e820: 0000000000100000 - 00000000afde0000 (usable)
>> BIOS-e820: 00000000afde0000 - 00000000afde3000 (ACPI NVS)
>> BIOS-e820: 00000000afde3000 - 00000000afdf0000 (ACPI data)
>> BIOS-e820: 00000000afdf0000 - 00000000afe00000 (reserved)
>> BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
>> BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
>> BIOS-e820: 0000000100000000 - 0000000230000000 (usable)
>
> It reports 7677M of usable mem. Or maybe your loader is cheating on you?
> I doubt so...
Ok. That's right. Anyway, I'm wondering about the difference to free:
total used free shared buffers cached
Mem: 7706580 5271096 2435484 0 79232 3049120
which is 7526M. This means, there are missing 151M of usable RAM?!
I would have expected, that free reprots the same amount as the kernel
reports to be usable.
On the other hand, I would have expected, that the amount, reported by
free + gfx-memory should nearly be 8 GB. Here it is: 7782. Thus there
are missing 410 MB between the installed hardware and free + gfx-memory.
Does anybody kown, where to find them?
Removing the difference between free and physical ram map (410 - 151),
~259 MB are remaing. This is nearly the amount for the gfx-card, which
has already been removed. Could it be, that the gfx-memory is reserved
twice - once by the bios and another time by the kernel?!
Kind regards,
Andreas
You should reply-to-all.
On 11/22/2010 10:58 PM, Andreas Hartmann wrote:
> Jiri Slaby wrote:
>> On 11/21/2010 08:02 PM, Andreas Hartmann wrote:
>>> I've got 8 GB RAM installed, but linux reports 7,3 GB. Where is the
>>> missing RAM (700 MB)?
>> ...
>>> The motherboard is a GA-MA78GM-S2H (64bit, AMD) with a on board Radeon
>>> HD 3200 VGA card. The card uses 256 MB of RAM - so 444 MB of RAM are
>>> missing. Where are they gone?
>>
>> Hi, ask your BIOS:
>>
>>> BIOS-provided physical RAM map:
>>> BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
>>> BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
>>> BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
>>> BIOS-e820: 0000000000100000 - 00000000afde0000 (usable)
>>> BIOS-e820: 00000000afde0000 - 00000000afde3000 (ACPI NVS)
>>> BIOS-e820: 00000000afde3000 - 00000000afdf0000 (ACPI data)
>>> BIOS-e820: 00000000afdf0000 - 00000000afe00000 (reserved)
>>> BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
>>> BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
>>> BIOS-e820: 0000000100000000 - 0000000230000000 (usable)
>>
>> It reports 7677M of usable mem. Or maybe your loader is cheating on you?
>> I doubt so...
>
> Ok. That's right. Anyway, I'm wondering about the difference to free:
>
> total used free shared buffers cached
> Mem: 7706580 5271096 2435484 0 79232 3049120
>
> which is 7526M. This means, there are missing 151M of usable RAM?!
Yes, and if you look into dmesg, you will see:
Your BIOS doesn't leave a aperture memory hole
Please enable the IOMMU option in the BIOS setup
This costs you 32 MB of RAM
Mapping aperture over 32768 KB of RAM @ 20000000
Then there is some kernel code+data (11M), mem_map (108M) etc.
7677-108-32-11=7526
> I would have expected, that free reprots the same amount as the kernel
> reports to be usable.
>
> On the other hand, I would have expected, that the amount, reported by
> free + gfx-memory should nearly be 8 GB. Here it is: 7782. Thus there
> are missing 410 MB between the installed hardware and free + gfx-memory.
Since the BIOS is not reporting the memory, kernel can do only a little
about that.
> Removing the difference between free and physical ram map (410 - 151),
> ~259 MB are remaing. This is nearly the amount for the gfx-card, which
> has already been removed. Could it be, that the gfx-memory is reserved
> twice - once by the bios and another time by the kernel?!
I don't understand where you got the numbers...
regards,
--
js
On Sun, Nov 21, 2010 at 11:02 AM, Andreas Hartmann
<[email protected]> wrote:
> Hello,
>
> I've got 8 GB RAM installed, but linux reports 7,3 GB. Where is the
> missing RAM (700 MB)?
>
> free
> ? ? ? ? ? ? total ? ? ? used ? ? ? free ? ? shared ? ?buffers ? ? cached
> Mem: ? ? ? 7706580 ? ?5271096 ? ?2435484 ? ? ? ? ?0 ? ? ?79232 ? ?3049120
> -/+ buffers/cache: ? ?2142744 ? ?5563836
> Swap: ? ? ?8393956 ? ? ? ? ?0 ? ?8393956
>
> The motherboard is a GA-MA78GM-S2H (64bit, AMD) with a on board Radeon
> HD 3200 VGA card. The card uses 256 MB of RAM - so 444 MB of RAM are
> missing. Where are they gone?
>
>
> kernel: 2.6.34.7-33-desktop (OpenSuSE 11.3)
>
> dmesg
> Linux version 2.6.34.7-33-desktop (geeko@buildhost) (gcc version 4.4.1
> [gcc-4_4-branch revision 150839] (SUSE Linux) ) #1 SMP PREEMPT
> 2010-11-09 20:08:44 +0100
> Command line:
> root=/dev/disk/by-id/scsi-SATA_WDC_WD5000AACS-_WD-WCAUF1158341-part1
> splash=silent quiet nmi_watchdog=0 iommu=noagp,memaper=0 agp=off vga=0x376
> BIOS-provided physical RAM map:
> BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
> BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
> BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
> BIOS-e820: 0000000000100000 - 00000000afde0000 (usable)
> BIOS-e820: 00000000afde0000 - 00000000afde3000 (ACPI NVS)
> BIOS-e820: 00000000afde3000 - 00000000afdf0000 (ACPI data)
> BIOS-e820: 00000000afdf0000 - 00000000afe00000 (reserved)
> BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
> BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
> BIOS-e820: 0000000100000000 - 0000000230000000 (usable)
...
> 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3200
> Graphics (prog-if 00 [VGA controller])
> ? ? ? ?Subsystem: Giga-byte Technology GA-MA78GM-S2H Motherboard
> ? ? ? ?Flags: bus master, fast devsel, latency 0, IRQ 18
> ? ? ? ?Memory at d0000000 (32-bit, prefetchable) [size=256M]
> ? ? ? ?I/O ports at ee00 [size=256]
> ? ? ? ?Memory at fdfe0000 (32-bit, non-prefetchable) [size=64K]
> ? ? ? ?Memory at fde00000 (32-bit, non-prefetchable) [size=1M]
> ? ? ? ?Expansion ROM at <unassigned> [disabled]
> ? ? ? ?Capabilities: [50] Power Management version 3
> ? ? ? ?Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
> ? ? ? ?Kernel driver in use: fglrx_pci
looks like
your BIOS only mmio remapping from 0xd000000 to 0x100000000
because last e820 entry and TOM2 is 0x230000000.
so you lose memory from 0xb0000000 to 0xd0000000. that 512M?
check with your system vendor to get a BIOS update...
Yinghai