Date: Thu, 12 Nov 2009 18:28:25 +0100 From: Gary Jennejohn <gary.jennejohn@freenet.de> To: freebsd-current@freebsd.org Cc: Emil Mikulic <emikulic@gmail.com> Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld Message-ID: <20091112182825.73b0079c@ernst.jennejohn.org> In-Reply-To: <200911121133.30784.jhb@freebsd.org> References: <20091106101943.5a763f43@ernst.jennejohn.org> <hdc73v$4rt$1@ger.gmane.org> <20091111231753.GA52833@dmr.ath.cx> <200911121133.30784.jhb@freebsd.org>
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On Thu, 12 Nov 2009 11:33:30 -0500 John Baldwin <jhb@freebsd.org> wrote: > On Wednesday 11 November 2009 6:17:53 pm Emil Mikulic 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? > > Because it is still a new feature and on some machines it causes > panics/freezes out of the box. I'd be happier turning it on once it has been > tested more and once we've figured out the reasons for the various freezes, > etc. that seem to be related to enabling it. > A safer way to test this is to enter set hw.mca.enabled="1" on the loader command line rather than putting it into loader.conf. I just did this on my "consumer" AMD64 board without ill effect. --- Gary Jennejohn
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