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Date:      Tue, 6 Jan 2004 15:52:25 +0100
From:      Harald Schmalzbauer <h@schmalzbauer.de>
To:        freebsd-current@freebsd.org
Subject:   some HTT questions
Message-ID:  <200401061552.30071@harrymail>

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Hi all,

I'm currently working on my first P4 ever.
I'm planning a colo production machine with FreeBSD 5.2 (RC2 atm).
The info of dmesg about the CPU shows:

CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2394.13-MHz 686-class CPU)
  Origin =3D "GenuineIntel"  Id =3D 0xf27  Stepping =3D 7
  Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>

So I think this CPU should be HyperThreading capable which gets hardened by=
=20
those lines:

	acpi_cpu0: <CPU> on acpi0
	acpi_cpu1: <CPU> on acpi0

But the next line gives my an error about CPU1:

	device_probe_and_attach: acpi_cpu1 attach returned 6

This line shows up a second time between probing of sio and nxp0.

Ny my guess was that HTT should be enabled in the BIOS but the BIOS has no=
=20
entry about HTT.

How can I use HTT and are my assumptions correct?

Thanks,

=2DHarry





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