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From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Dave McCracken <dcm@mccr.org>
Cc: Xen Developers List <xen-devel@lists.xensource.com>,
	Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [PATCH xen-unstable] Remove PSE flag from guest CR4
Date: Mon, 14 Sep 2009 12:07:38 -0700	[thread overview]
Message-ID: <4AAE947A.8010009@goop.org> (raw)
In-Reply-To: <200909141253.38621.dcm@mccr.org>

On 09/14/09 10:53, Dave McCracken wrote:
> Linux assumes it will just work.
>
> Since hugepages in Linux are an optional feature the kernel will boot even on 
> a machine that doesn't support PSE.  Applications that use hugepages will get 
> a nasty error.
>   

That sounds like a Linux bug; at the very least, it sounds very fragile
to rely on this behaviour.

    J

  reply	other threads:[~2009-09-14 19:07 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-14 17:27 [PATCH xen-unstable] Remove PSE flag from guest CR4 Dave McCracken
2009-09-14 17:42 ` Keir Fraser
2009-09-14 17:53   ` Dave McCracken
2009-09-14 19:07     ` Jeremy Fitzhardinge [this message]
2009-09-14 19:47       ` Dave McCracken

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