Date: Sat, 04 Aug 2001 13:37:03 -0400 From: Matthew Hagerty <mhagerty@voyager.net> To: "Alex Vargas" <Exel@SpeakEasy.Net>, <freebsd-questions@FreeBSD.ORG> Subject: Re: MultiProcessor Support | Kernel recompile query Message-ID: <5.0.2.1.2.20010804133050.025a0148@pop.voyager.net> In-Reply-To: <ONEEJMFOJLJHIMJMLPMIGEKICFAA.Exel@SpeakEasy.Net>
next in thread | previous in thread | raw e-mail | index | archive | help
At 08:50 AM 8/4/2001 -0400, Alex Vargas wrote: >Greetings! > >Using: FreeBSD 4.3-Stable >Kernal config name: DARKSIDE > >I am attempting to recompile my kernel for Multiprocessor support.. I have >chosen the SMP and APIC_IO options in the new kernel configuration file I am >using, but when the CONFIG gets to the subsequent configuration options >which follow, I get an error message: > >DARKSIDE:66: unknown option "NCPU" >Exit 1 > >This error appears for all the below listed options unless I COMMENT them >out and then the CONFIG completes. Can anyone advise why this is occurring? >I wish to specify two CPUs but if it is unnecessary I will go ahead and >recompile with the below options commmented out. >----------- > >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 >------------- > >Here is my DMESG output: <snip> My 4.3 install GENERIC kernel config file (which is usually the one you copy to make your custom kernel config file) says this: # To make an SMP kernel, the next two are needed #options SMP # Symmetric MultiProcessor Kernel #options APIC_IO # Symmetric (APIC) I/O I remember the options you mentioned above, but I don't remember seeing them since 4.2, so apparently they are not needed any longer. Also, if I remember correctly, there is a comment above those options that says they are the defaults and you only need to un-comment them if you need to change them. Getting to the point, no, I don't believe you need them. Only the two options SMP and APIC_IO are required. I'm running an SMP box and that is all it took for me. Matthew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5.0.2.1.2.20010804133050.025a0148>