Dual Core Xeon / i386 install w/ more than 4gb of RAM

Tue Feb 19 22:39:51 UTC 2008

I have a box that we recently installed 16GB of RAM on. The box is i386
FreeBSD 6.2. It only recognizes 4gb.

I am currently recompiling the kernel to support options PAE (KERNCONF=PAE)
in order to see this. I understand this is still considered a Beta
implementation ,and this is a production box.

Does anyone have any alternative solutions that would provide a more
reliable environment other than PAE?

Dmesg Output is as follows :

Copyright (c) 1992-2007 The FreeBSD Project.

Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994

      The Regents of the University of California. All rights reserved.

FreeBSD is a registered trademark of The FreeBSD Foundation.

FreeBSD 6.2-RELEASE #0: Fri Jan 12 11:05:30 UTC 2007

    root at dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP

Timecounter "i8254" frequency 1193182 Hz quality 0

CPU: Intel(R) Xeon(TM) CPU 3.00GHz (3000.13-MHz 686-class CPU)

  Origin = "GenuineIntel"  Id = 0xf64  Stepping = 4

Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA
,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>

  Features2=0xe4bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,CNTX-ID,CX16,<b14>,<b15>>

  AMD Features=0x20100000<NX,LM>

  AMD Features2=0x1<LAHF>

  Cores per package: 2

  Logical CPUs per core: 2

real memory  = 3489005568 (3327 MB)

avail memory = 3414196224 (3256 MB)

ACPI APIC Table: <PTLTD        APIC  >

FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs

 cpu0 (BSP): APIC ID:  0

 cpu1 (AP): APIC ID:  1

 cpu2 (AP): APIC ID:  2

 cpu3 (AP): APIC ID:  3

ioapic0 <Version 2.0> irqs 0-23 on motherboard

ioapic1 <Version 2.0> irqs 24-47 on motherboard

kbd1 at kbdmux0

ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)

acpi0: <PTLTD   RSDT> on motherboard

acpi0: Power Button (fixed)

Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000

acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0

cpu0: <ACPI CPU> on acpi0

acpi_throttle0: <ACPI CPU Throttling> on cpu0

cpu1: <ACPI CPU> on acpi0

acpi_throttle1: <ACPI CPU Throttling> on cpu1

acpi_throttle1: failed to attach P_CNT

device_attach: acpi_throttle1 attach returned 6

cpu2: <ACPI CPU> on acpi0

acpi_throttle2: <ACPI CPU Throttling> on cpu2

acpi_throttle2: failed to attach P_CNT

device_attach: acpi_throttle2 attach returned 6

cpu3: <ACPI CPU> on acpi0

acpi_throttle3: <ACPI CPU Throttling> on cpu3

acpi_throttle3: failed to attach P_CNT

device_attach: acpi_throttle3 attach returned 6

pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0

pci0: <ACPI PCI bus> on pcib0

pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0

pci1: <ACPI PCI bus> on pcib1

pcib2: <ACPI PCI-PCI bridge> irq 16 at device 0.0 on pci1

pci2: <ACPI PCI bus> on pcib2

pcib3: <ACPI PCI-PCI bridge> irq 16 at device 0.0 on pci2

pci3: <ACPI PCI bus> on pcib3

pcib4: <ACPI PCI-PCI bridge> irq 18 at device 2.0 on pci2

pci4: <ACPI PCI bus> on pcib4

em0: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port
0x2000-0x201f mem 0xd8000000-0xd801ffff irq 18 at device 0.0 on pci4

em0: Ethernet address: 00:30:48:8d:e7:8e

em1: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port
0x2020-0x203f mem 0xd8020000-0xd803ffff irq 19 at device 0.1 on pci4

em1: Ethernet address: 00:30:48:8d:e7:8f

pcib5: <ACPI PCI-PCI bridge> at device 0.3 on pci1

pci5: <ACPI PCI bus> on pcib5

pci0: <base peripheral> at device 8.0 (no driver attached)

pcib6: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0

pci6: <ACPI PCI bus> on pcib6

uhci0: <UHCI (generic) USB controller> port 0x1800-0x181f irq 17 at device
29.0 on pci0

uhci0: [GIANT-LOCKED]

usb0: <UHCI (generic) USB controller> on uhci0

usb0: USB revision 1.0

uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1

uhub0: 2 ports with 2 removable, self powered

uhci1: <UHCI (generic) USB controller> port 0x1820-0x183f irq 19 at device
29.1 on pci0

uhci1: [GIANT-LOCKED]

usb1: <UHCI (generic) USB controller> on uhci1

usb1: USB revision 1.0

uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1

uhub1: 2 ports with 2 removable, self powered

uhci2: <UHCI (generic) USB controller> port 0x1840-0x185f irq 18 at device
29.2 on pci0

uhci2: [GIANT-LOCKED]

usb2: <UHCI (generic) USB controller> on uhci2

usb2: USB revision 1.0

uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1

uhub2: 2 ports with 2 removable, self powered

uhci3: <UHCI (generic) USB controller> port 0x1860-0x187f irq 16 at device
29.3 on pci0

uhci3: [GIANT-LOCKED]

usb3: <UHCI (generic) USB controller> on uhci3

usb3: USB revision 1.0

uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1

uhub3: 2 ports with 2 removable, self powered

ehci0: <EHCI (generic) USB 2.0 controller> mem 0xd8500000-0xd85003ff irq 17
at device 29.7 on pci0

ehci0: [GIANT-LOCKED]

usb4: EHCI version 1.0

usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3

usb4: <EHCI (generic) USB 2.0 controller> on ehci0

usb4: USB revision 2.0

uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1

uhub4: 8 ports with 8 removable, self powered

pcib7: <ACPI PCI-PCI bridge> at device 30.0 on pci0

pci7: <ACPI PCI bus> on pcib7

pci7: <display, VGA> at device 1.0 (no driver attached)

isab0: <PCI-ISA bridge> at device 31.0 on pci0

isa0: <ISA bus> on isab0

atapci0: <Intel 63XXESB2 UDMA100 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x1880-0x188f at device 31.1 on pci0

ata0: <ATA channel 0> on atapci0

ata1: <ATA channel 1> on atapci0

atapci1: <Intel 63XXESB2 SATA300 controller> port
0x18c0-0x18c7,0x1894-0x1897,0x1898-0x189f,0x1890-0x1893,0x18a0-0x18bf mem
0xd8500400-0xd85007ff irq 19 at device 31.2 on pci0

atapci1: AHCI Version 01.10 controller with 6 ports detected

ata2: <ATA channel 0> on atapci1

ata3: <ATA channel 1> on atapci1

ata4: <ATA channel 2> on atapci1

ata5: <ATA channel 3> on atapci1

ata6: <ATA channel 4> on atapci1

ata7: <ATA channel 5> on atapci1

pci0: <serial bus, SMBus> at device 31.3 (no driver attached)

acpi_button0: <Power Button> on acpi0

atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0

atkbd0: <AT Keyboard> irq 1 on atkbdc0

kbd0 at atkbd0

atkbd0: [GIANT-LOCKED]

psm0: <PS/2 Mouse> irq 12 on atkbdc0

psm0: [GIANT-LOCKED]

psm0: model IntelliMouse Explorer, device ID 4

sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on
acpi0

sio0: type 16550A

sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0

sio1: type 16550A

fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0

fdc0: [FAST]

ppc0: <ECP parallel printer port> port 0x378-0x37f,0x778-0x77f irq 7 drq 3
on acpi0

ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode

ppc0: FIFO with 16/16/9 bytes threshold

ppbus0: <Parallel port bus> on ppc0

plip0: <PLIP network interface> on ppbus0

lpt0: <Printer> on ppbus0

lpt0: Interrupt-driven port

ppi0: <Parallel I/O> on ppbus0

pmtimer0 on isa0

orm0: <ISA Option ROM> at iomem 0xc0000-0xcafff on isa0

sc0: <System console> at flags 0x100 on isa0

sc0: VGA <16 virtual consoles, flags=0x300>

vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0

Timecounters tick every 1.000 msec

acd0: CDRW <Slimtype COMBO SOLC-2481K/1K03> at ata0-slave UDMA33

ad4: 239372MB <WDC WD2500YS-01SHB1 20.06C06> at ata2-master SATA300

ad6: 239372MB <WDC WD2500YS-01SHB1 20.06C06> at ata3-master SATA300

ar0: 239370MB <Intel MatrixRAID RAID1> status: READY

ar0: disk0 READY (master) using ad4 at ata2-master

ar0: disk1 READY (mirror) using ad6 at ata3-master

SMP: AP CPU #2 Launched!

SMP: AP CPU #1 Launched!

SMP: AP CPU #3 Launched!

Trying to mount root from ufs:/dev/ar0s1a

ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding disabled,
default to deny, logging disabled

em0: link state changed to UP