From owner-freebsd-smp  Tue Jul  6 22:41: 3 1999
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Date: Tue, 6 Jul 1999 22:41:00 -0700 (PDT)
From: Matthew Dillon <dillon@apollo.backplane.com>
Message-Id: <199907070541.WAA88039@apollo.backplane.com>
To: Cosmic 665 <the_hermit665@hotmail.com>
Cc: freebsd-smp@FreeBSD.ORG
Subject: Re: "Kernel" SYSTEM HANGS and halts
References:  <19990707053253.76440.qmail@hotmail.com>
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:Hello Fellow FreeBSD Users;
:
:    I'm somewhat new to FreeBSD.  I've been having trouble setting up "SMP" 
:under FreeBSD.  I compile my kernel with all the Default settings for SMP, 
:and when I do so, my machine freezes at "switching to wd0s1 or wd0s2" 
:everytime I load the kernel.  when I use a generic kernel i'm fine, but when 
:I use the kernel with SMP and APIC it freezes.   Once a "blue moon" it will 
:load and when it does, if I switch to a VC in Xfree86, my computer freezes 
:every time.
:    Could someone please tell me what to do to stop this.??
:
:Here are my system specs;
:
:FreeBSD 3.2  (this also happens to me on 3.0)
:MotherBoard:  PCCHIPS dual PII Motherboard  233-333MHZ
:CPU's:  INtel 333Mhz  x2
:..
:note:  whenever I set my CPU_type for only "I586_cpu" I get a kernel panic.  
:could someone plz tell my why??  Also, if I do get a  kernel panic, how do I 
:"switch Back" to the GENERIC kernel without a bootdisk??   In 3.2 I'm 
:clueless??

    A pentium-II cpu uses a Pentium-PRO core, not a pentium core.  In
    otherwords, those are I686_cpu's you have, not 586's, so you should
    specify both the I586_cpu and the I686_cpu options.

:# To make an SMP kernel, the next two are needed
:options	SMP			# Symmetric MultiProcessor Kernel
:options	APIC_IO			# Symmetric (APIC) I/O
:# Optionally these may need tweaked, (defaults shown):
:#options	NCPU=2			# number of CPUs
:#options	NBUS=4			# number of busses
:#options	NAPIC=1			# number of IO APICs
:#options	NINTR=24		# number of INTs

    Try specifying the NCPU option specifically.  That's all I can think of
    right offhand.

options SMP
options APIC_IO
options NCP=2

:
:thanks :)
:
:  -Cosmic-665

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>


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