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From: Ian Campbell <ijc@hellion.org.uk>
To: Joel Becker <Joel.Becker@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
	Jeremy Fitzhardinge <jeremy@goop.org>,
	Jody Belka <lists-lkml@pimb.org>,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Andi Kleen <andi@firstfloor.org>,
	Mika Penttila <mika.penttila@kolumbus.fi>
Subject: Re: 2.6.25-rc1 xen pvops regression
Date: Wed, 20 Feb 2008 22:30:24 +0000	[thread overview]
Message-ID: <1203546624.26910.76.camel@cthulhu.hellion.org.uk> (raw)
In-Reply-To: <20080220214217.GA28444@mail.oracle.com>


On Wed, 2008-02-20 at 13:42 -0800, Joel Becker wrote:
> 	What changed to make this not work in the first place?  New dmi
> code?

I don't think so -- this code is present even in the 2.6.18-xen.hg tree
(where it's gated with is_initial_domain() which isn't suitable for the
upstream tree).

I don't really know why it should start happening now. It may be that
some of the recentish changes to e.g. early_ioremap or early pagetable
setup etc. have tweaked the layout of the early pagetables around so
this problem bites us more readily. Or it may just be a combination of
kernel image size, RAM size and perhaps a dose of bad luck.

Ian.
-- 
Ian Campbell

... at least I thought I was dancing, 'til somebody stepped on my hand.
		-- J. B. White


  reply	other threads:[~2008-02-20 22:30 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-12 23:54 Jody Belka
2008-02-13 11:59 ` Jeremy Fitzhardinge
2008-02-13 12:13   ` Jody Belka
2008-02-13 12:23   ` Ingo Molnar
2008-02-14  2:27   ` Joel Becker
2008-02-14  7:50     ` Jeremy Fitzhardinge
2008-02-15 20:23       ` Joel Becker
2008-02-16  2:44         ` Jeremy Fitzhardinge
2008-02-16  8:54           ` Joel Becker
2008-02-16 11:46             ` Jeremy Fitzhardinge
2008-02-17  6:29               ` Joel Becker
2008-02-17 12:09                 ` Jeremy Fitzhardinge
2008-02-17  6:39               ` Joel Becker
2008-02-17 18:49         ` Ian Campbell
2008-02-18 10:40           ` Joel Becker
2008-02-19 21:50             ` Ian Campbell
2008-02-19 21:59             ` Ian Campbell
2008-02-20  7:43               ` H. Peter Anvin
2008-02-20  8:51                 ` Ian Campbell
2008-02-20 21:42                   ` Joel Becker
2008-02-20 22:30                     ` Ian Campbell [this message]
2008-02-20 21:58                   ` Jeremy Fitzhardinge
2008-02-20 22:29                     ` Ian Campbell
2008-02-21 21:16                       ` Jeremy Fitzhardinge
2008-02-21 21:21                         ` H. Peter Anvin
2008-02-21 21:37                           ` Jeremy Fitzhardinge
2008-02-21 21:44                             ` H. Peter Anvin
2008-02-21 22:12                             ` Ian Campbell
2008-02-21 22:23                               ` H. Peter Anvin
2008-02-21 22:49                                 ` Jeremy Fitzhardinge
2008-02-21 22:58                                   ` H. Peter Anvin
2008-02-22  7:25                                     ` Ian Campbell
2008-02-22  9:28                                       ` Alan Cox
2008-02-22  9:55                                         ` Andi Kleen
2008-02-22 10:00                                           ` Alan Cox
2008-02-22 10:15                                             ` Andi Kleen
2008-02-22 16:27                                               ` H. Peter Anvin
2008-02-22 19:25                                               ` Pavel Machek
2008-02-26 17:06                                       ` Mark McLoughlin
2008-02-26 20:05                                         ` Jeremy Fitzhardinge
2008-02-21 22:58                               ` Joel Becker
2008-02-21 22:04                           ` Eric W. Biederman
2008-02-21 23:14                             ` Jeremy Fitzhardinge
2008-02-21 23:26                               ` H. Peter Anvin
2008-02-21 23:46                                 ` Jeremy Fitzhardinge
2008-02-21 23:57                                   ` H. Peter Anvin

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