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Date: Fri, 03 Oct 2003 23:10:39 -0500
To: Yamada Ken Takeshi <ken@tydfam.jp>
From: dave <dave@asylum.org>
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Subject: Re: Q) Does em0 work under HTT?
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At 09:51 PM 10/3/2003, you wrote:
>   Hi!
>   Does em{0,1} work under Hyperthreding enabled?
>"em0", seemingly is not working under my environment;
>
>FreeBSD 5.1-CURRENT #15: Sat Oct  4 09:46:38 JST 2003
>     ken@tyd3.sub.tydfam.jp:/usr/obj/usr/src/sys/TYD3
>Preloaded elf kernel "/boot/kernel/kernel" at 0xc0aae000.
>Preloaded elf module "/boot/kernel/acpi.ko" at 0xc0aae2bc.
>Timecounter "i8254" frequency 1193182 Hz quality 0
>CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2799.22-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf27  Stepping = 7
> 
>Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
>MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>   Hyperthreading: 2 logical CPUs
>
>However, I am not sure if it is because of HTT
>enabled or not.


It seems to be working on mine just fine:

insane:/home/dave 4:05am [10] > dmesg
Copyright (c) 1992-2003 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 5.1-RELEASE #3: Thu Oct  2 16:26:09 EST 2003
     dave@insane.asylum.org:/usr/obj/usr/src/sys/INSANE1
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0541000.
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 2839788556 Hz
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2839.79-MHz 686-class CPU)
   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>
   Hyperthreading: 2 logical CPUs
real memory  = 1073676288 (1023 MB)
avail memory = 1037438976 (989 MB)
Pentium Pro MTRR support enabled
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.5.31> port 
0xbc00-0xbc1f mem 0xff8e0000-0xff8fffff irq 10 at device 1.0 on pci2
em0:  Speed:100 Mbps  Duplex:Full

This is an MSI 875P Neo MB.

Do you have it enabled in the bios?

dave