On Thu, 18 Aug 2011, Dave Anderson wrote:
Oops! I forgot to include the full dmesg; here it is.
>I've been looking at a bunch of notebook dmesgs (i386, single processor)
>recently and have noticed that the value reported for 'real mem' is
>almost always much lower than the amount of memory actually installed.
>A typical example is
>
> OpenBSD 5.0 (GENERIC) #39: Mon Aug 8 14:53:43 MDT 2011
> dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
>
> real mem = 2900148224 (2765MB)
>
> spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-10600 SO-DIMM
> spdmem1 at iic0 addr 0x52: 2GB DDR3 SDRAM PC3-10600 SO-DIMM
>
>I understand that i386 cannot see more than 4GB due to architecture
>restrictions, but even allowing for that well over a gigabyte has
>vanished here.
>
>A quick look at the code that generates this number shows that it's
>skipping various areas reserved by the BIOS, etc., but the total amount
>being skipped seems absurd.
>
>Is there really supposed to be this much reserved space, or is something
>wrong?
>
>Thanks,
>
> Dave
OpenBSD 5.0 (GENERIC) #39: Mon Aug 8 14:53:43 MDT 2011
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
RTC BIOS diagnostic error 80<clock_battery>
cpu0: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz ("GenuineIntel"
686-class) 2 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,PCLMUL,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,x2APIC,POPCNT,XSAVE,AVX
real mem = 2900148224 (2765MB)
avail mem = 2842660864 (2710MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 04/25/11, BIOS32 rev. 0 @ 0xef735,
SMBIOS rev. 2.7 @ 0xe6780 (32 entries)
bios0: vendor Hewlett-Packard version "F.13" date 04/25/2011
bios0: Hewlett-Packard HP Pavilion dv7 Notebook PC
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP ASF! HPET APIC MCFG SLIC SSDT BOOT ASPT SSDT
SSDT SSDT SSDT
acpi0: wakeup devices P0P1(S3) LID_(S3) GLAN(S4) EHC1(S3) EHC2(S3)
HDEF(S0) PXSX(S4) RP01(S4) PXSX(S4) RP02(S3) PXSX(S4) RP03(S3) PXSX(S4)
RP04(S3) PXSX(S4) RP05(S3) PXSX(S4) RP06(S3) PXSX(S4) RP07(S3) PXSX(S4)
RP08(S3) PEG0(S4) PEGP(S4) PEG1(S4) PEG2(S4) PEG3(S4) PWRB(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: apic clock running at 99MHz
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (P0P1)
acpiprt2 at acpi0: bus 7 (RP01)
acpiprt3 at acpi0: bus 13 (RP02)
acpiprt4 at acpi0: bus 19 (RP03)
acpiprt5 at acpi0: bus 25 (RP04)
acpiprt6 at acpi0: bus -1 (RP05)
acpiprt7 at acpi0: bus -1 (RP06)
acpiprt8 at acpi0: bus -1 (RP07)
acpiprt9 at acpi0: bus -1 (RP08)
acpiprt10 at acpi0: bus 1 (PEG0)
acpiprt11 at acpi0: bus -1 (PEG1)
acpiprt12 at acpi0: bus -1 (PEG2)
acpiprt13 at acpi0: bus -1 (PEG3)
acpiec0 at acpi0
acpicpu0 at acpi0: C3, C2, C1, PSS
acpitz0 at acpi0: critical temperature is 99 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: PWRB
acpibat0 at acpi0: BAT0 not present
acpiac0 at acpi0: AC unit online
acpidock0 at acpi0: DOCK not docked (0)
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: DD02
bios0: ROM list: 0xc0000/0xf000
cpu0: Enhanced SpeedStep 1996 MHz: speeds: 2001, 2000, 1900, 1800, 1700,
1600, 1500, 1400, 1300, 1200, 1100, 1000, 900, 800 MHz
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
ppb0 at pci0 dev 1 function 0 "Intel Core 2G PCIE" rev 0x09: apic 0 int
16
pci1 at ppb0 bus 1
vga1 at pci0 dev 2 function 0 "Intel GT2 Video" rev 0x09
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
intagp at vga1 not configured
"Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x05: apic 0
int 16
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 6 Series HD Audio" rev 0x05:
msi
azalia0: codecs: IDT 92HD81B1X, Intel/0x2805, using IDT 92HD81B1X
audio0 at azalia0
ppb1 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb5: apic 0
int 17
pci2 at ppb1 bus 7
re0 at pci2 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E-VL
(0x2c80), apic 0 int 16, address 2c:27:d7:aa:e6:43
rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 5
ppb2 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb5: apic 0
int 16
pci3 at ppb2 bus 13
iwn0 at pci3 dev 0 function 0 "Intel WiFi Link 1000" rev 0x00: msi, MIMO
1T2R, BGS, address 8c:a9:82:76:34:fe
ppb3 at pci0 dev 28 function 2 "Intel 6 Series PCIE" rev 0xb5: apic 0
int 18
pci4 at ppb3 bus 19
"Realtek RTS5209 Card Reader" rev 0x01 at pci4 dev 0 function 0 not
configured
ppb4 at pci0 dev 28 function 3 "Intel 6 Series PCIE" rev 0xb5: apic 0
int 19
pci5 at ppb4 bus 25
"NEC PCIE-XHCI" rev 0x04 at pci5 dev 0 function 0 not configured
ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x05: apic 0
int 20
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel HM65 LPC" rev 0x05
ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x05: msi,
AHCI 1.3
scsibus0 at ahci0: 32 targets
sd0 at scsibus0 targ 0 lun 0: <ATA, TOSHIBA MK7559GS, GN00> SCSI3
0/direct fixed naa.5000039343802f4a
sd0: 715404MB, 512 bytes/sector, 1465149168 sectors
cd0 at scsibus0 targ 5 lun 0: <hp, DVDWBD TS-LB23L, 0600> ATAPI 5/cdrom
removable
ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x05: apic
0 int 19
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-10600 SO-DIMM
spdmem1 at iic0 addr 0x52: 2GB DDR3 SDRAM PC3-10600 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
mtrr: Pentium Pro MTRR support
uhub2 at uhub0 port 1 "Intel product 0x0024" rev 2.00/0.00 addr 2
ugen0 at uhub2 port 1 "vendor 0x138a product 0x0018" rev 1.10/0.78 addr
3
uvideo0 at uhub2 port 2 configuration 1 interface 0 "HP TrueVision HD HP
TrueVision HD" rev 2.00/9.24 addr 4
video0 at uvideo0
uhub3 at uhub1 port 1 "Intel product 0x0024" rev 2.00/0.00 addr 2
umass0 at uhub3 port 2 configuration 1 interface 0 "HP v125w" rev
2.00/40.96 addr 3
umass0: using SCSI over Bulk-Only
scsibus1 at umass0: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <hp, v125w, 4096> SCSI0 0/direct removable
serial.03f03307104A00000902
sd1: 3864MB, 512 bytes/sector, 7913472 sectors
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd1a (f52f4a011741136c.a) swap on sd1b dump on sd1b
--
Dave Anderson
<d...@daveanderson.com>
