Strange problem with 8-stable, VMWare vSphere 4 & AMD CPUs (unexpected shutdowns)

Ivan Voras ivoras at freebsd.org
Wed Feb 10 18:39:00 UTC 2010


On 10 February 2010 19:35, Andriy Gapon <avg at icyb.net.ua> wrote:
> on 10/02/2010 20:26 Ivan Voras said the following:
>> On 10 February 2010 19:10, Andriy Gapon <avg at icyb.net.ua> wrote:
>>> on 10/02/2010 20:03 Ivan Voras said the following:
>>>> When you say "very unique" is it in the "it is not Linux or Windows"
>>>> sense or do we do something nonstandard?
>>> The former - neither Linux, Windows or OpenSolaris seem to have what we have.
>>
>> I can't find the exact documents but I think both Windows
>> MegaUltimateServer (the highest priced version of Windows Server,
>> whatever it's called today) and Linux (though disabled and marked
>> Experimental) have it, or have some kind of support for large pages
>> that might not be as pervasive (maybe they use it for kernel only?). I
>> have no idea about (Open)Solaris.
>
> I haven't said that those OSes do not use large pages.
> I've said what I've said :-)

Ok :)

Is there a difference between "large pages" as they are commonly known
and "superpages" as in FreeBSD ? In other words - are you referencing
some specific mechanism, like automatic promotion / demotion of the
large pages or maybe something else?


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