From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [PATCH] switch to a known good/static GDT before
	kexec
Date: Thu, 02 Jul 2009 10:18:34 +0100
Message-ID: <C67239FA.8815%keir.fraser@eu.citrix.com>
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Cc: Jan Beulich <JBeulich@novell.com>
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On 02/07/2009 09:45, "Ian Campbell" <Ian.Campbell@eu.citrix.com> wrote:

> switch to a known good/static GDT before kexec
> 
> kexec has been failing (at least on 32on64, didn't try others) since
> 18771:8e18dd41c6c7 "x86: reduce GDT switching". Ensure that we are
> using a known good GDT before attempting to switch to compatability mode.

I thought 18771 still left us always running on a good GDT, as least as far
as Xen's own limited needs are concerned. I'd like this in for 3.4.1 of
course, but I'd also like to understand why the fix is required (and whether
this is the best fix).

 -- Keir