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Date:      Thu, 24 Dec 2009 00:43:05 +0200
From:      Andriy Gapon <avg@icyb.net.ua>
To:        Michael Butler <imb@protected-networks.net>
Cc:        freebsd-emulation@freebsd.org, freebsd-current <freebsd-current@freebsd.org>
Subject:   Re: JFYI: VirtualBox stable/unstable setteings (3.0.51.r22902)
Message-ID:  <4B329CF9.2020407@icyb.net.ua>
In-Reply-To: <4B328172.8070507@protected-networks.net>
References:  <4B31AABD.2020804@ongs.co.jp>	<4B322F56.3050703@protected-networks.net> <4B324994.2010805@icyb.net.ua> <4B328172.8070507@protected-networks.net>

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on 23/12/2009 22:45 Michael Butler said the following:
> On 12/23/09 11:47, Andriy Gapon wrote:
>> on 23/12/2009 16:55 Michael Butler said the following:
>>> Another data point:
>>>
>>> setting "vm.pmap.pg_ps_enabled=1" on my core duo seems to invite random
>>> "fault on no-fault entry" panics. I have been unable to pin this down
>>> any further because, even with a full debug + invariant kernel, it locks
>>> solid with no dump saved :-(
>>
>> uname -m: i386 or amd64?
> 
> FreeBSD 9.0-CURRENT #12 r200840: Tue Dec 22 10:38:57 EST 2009 i386

OK.  I am not sure about the exact details but there seems to be a known issue
with superpages on i386 and that's the reason they are disabled by default.
So, it's probably best not to enable them for time being.

-- 
Andriy Gapon



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