Why does FreeBSD 8.-0 think that my Dell SX260 have "non-unform processors"?

[Ian Smith]

On Sun, 20 Dec 2009, Torfinn Ingolfsen wrote:
 > Hi,
 > I just booted my Dell OptiPlex SX260[1] from a usb memory stick with
 > FreeBSD 8.0-release on it. Part of the dmesg output is:
 > Copyright (c) 1992-2009 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 8.0-RELEASE #0: Sat Nov 21 15:48:17 UTC 2009
 >     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
 > Timecounter "i8254" frequency 1193182 Hz quality 0
 > CPU: Intel(R) Pentium(R) 4 CPU 2.60GHz (1295.21-MHz 686-class CPU)

Why is it booting up at half speed?  Same in your 7.2-STABLE dmesg.
Something set that way in BIOS?  What does 'sysctl dev.cpu' say?

 >   Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
 >   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=0x4400<CNXT-ID,xTPR>
 > real memory  = 2147483648 (2048 MB)
 > avail memory = 2085347328 (1988 MB)
 > ACPI APIC Table: <DELL   SX260  >
 > WARNING: Non-uniform processors.
 > WARNING: Using suboptimal topology.
 > ioapic0: Changing APIC ID to 1
 > ioapic0 <Version 2.0> irqs 0-23 on motherboard
 > kbd1 at kbdmux0
 > 
 > Full demsg output on the FreeBSD page[2] for this machine.

Only spotted a verbose dmesg for 7.2-STABLE there, not for 8.0?

 > Why does FreeBSD think that this machine has "non-unform processors?
 > Ok, the Pentium 4 in it can proably do hyperthreading, but that isn't
 > much to talk about.

I suppose you have HTT disabled in BIOS?

 > What excatly is non-unform here?

I don't know, but suspect the detected half CPU speed may be a clue?

 > References:
 > 1) http://sites.google.com/site/tingox/sx260
 > 2) http://sites.google.com/site/tingox/sx260_freebsd
 > -- 
 > Regards,
 > Torfinn Ingolfsen

cheers, Ian