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Date: Thu, 12 Nov 2009 15:38:59 +0200
From: Andriy Gapon <avg@icyb.net.ua>
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To: Giovanni Trematerra <giovanni.trematerra@gmail.com>
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Cc: freebsd-current@freebsd.org, Emil Mikulic <emikulic@gmail.com>
Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld
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on 12/11/2009 10:48 Giovanni Trematerra said the following:
> On Thu, Nov 12, 2009 at 12:17 AM, Emil Mikulic <emikulic@gmail.com> wrote:
>> On Tue, Nov 10, 2009 at 09:15:42AM -0800, Mark Atkinson wrote:
>>> Also, you can try adding:
>>>
>>> hw.mca.enabled="1" in /boot/loader.conf
>> This is a little off-topic, but:
>> Why is this disabled by default in FreeBSD?
> 
> I guess because it introduces an overhead.

I don't think that there is any noticable overhead.
My guess is because it is a new feature which has not been wildly tested yet.


-- 
Andriy Gapon