Date: Wed, 9 Jul 2003 08:07:19 -0700 From: Brooks Davis <brooks@one-eyed-alien.net> To: Jens Rehsack <rehsack@liwing.de> Cc: Lukas Ertl <l.ertl@univie.ac.at> Subject: Re: HTT on single CPU? Message-ID: <20030709150718.GC28375@Odin.AC.HMC.Edu> In-Reply-To: <3F0C0ED6.4030202@liwing.de> References: <20030708133504.L16193@pcle2.cc.univie.ac.at> <XFMail.20030708131344.jhb@FreeBSD.org> <20030709123734.GA50458@nagual.pp.ru> <3F0C0ED6.4030202@liwing.de>
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--ZmUaFz6apKcXQszQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jul 09, 2003 at 02:47:18PM +0200, Jens Rehsack wrote: > Andrey Chernov wrote: >=20 > >On Tue, Jul 08, 2003 at 13:13:44 -0400, John Baldwin wrote: > > > >>You need to enable SMP and APIC_IO in your kernel to use HTT. Also, > >>the BIOS setting probably won't make a difference. > >> > > > > > >I have both APIC and HTT flags in my P4, but when I try to load kernel > >compiled with APIC_IO and SMP, I got panic: > > > >pmap_bootstrap: no local apic! (non-SMP hardware?) > > > >Is it motherboard or BIOS? I have no Hyperthreading setting in the BIOS, > >but PIC or APIC modes (both not works with MP kernel). Motherboard is AS= US=20 > >P4B533. >=20 > Hm, I get a really other behaviour, but the result is no having two cpu's: >=20 > 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-CURRENT #0: Sat Jun 28 15:40:03 GMT 2003 > root@moby.helpers.liwing.de:/usr/obj/usr/src/sys/MOBY > Preloaded elf kernel "/boot/kernel/kernel" at 0xc03ef000. > Preloaded elf module "/boot/kernel/acpi.ko" at 0xc03ef26c. > Timecounter "i8254" frequency 1193182 Hz > Timecounter "TSC" frequency 2400094284 Hz > CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2400.09-MHz 686-class CPU) > Origin =3D "GenuineIntel" Id =3D 0xf27 Stepping =3D 7 >=20 > 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> P4's below ~3.1GHz do not actually provide logical CPU support. -- Brooks --ZmUaFz6apKcXQszQ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE/DC+lXY6L6fI4GtQRAhWyAJ4+nHxHmfmVOa6FzT4uAjXZA9h4BwCgy3hp Tlxa3mbKwCMqvx2iuY2/gmU= =3zJj -----END PGP SIGNATURE----- --ZmUaFz6apKcXQszQ--
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