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From: Jesse Barnes <jesse.barnes@intel.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Andi Kleen <andi@firstfloor.org>,
	linux-kernel@vger.kernel.org,
	Justin Piszcz <jpiszcz@lucidpixels.com>
Subject: Re: [PATCH] trim memory not covered by WB MTRRs
Date: Tue, 12 Jun 2007 08:39:07 -0700	[thread overview]
Message-ID: <200706120839.08239.jesse.barnes@intel.com> (raw)
In-Reply-To: <m13b12rqel.fsf@ebiederm.dsl.xmission.com>

On Friday, June 8, 2007 4:13:22 Eric W. Biederman wrote:
> Jesse Barnes <jesse.barnes@intel.com> writes:
> >> - Overlapping MTRRs.
> >
> > Overlapping should be ok, since that's usually intentional (e.g.
> > one big wb range with a portion of uc space due to another mtrr).
>
> I'm not say overlapping was a bug.  I was saying that you don't
> handle overlapping mtrrs in figuring the last cached addresses. 
> Therefore when a UC range overlaps a WB range we might thing the last
> page in the WB range is cached when it is not.

Oh right, that might be an issue, but we haven't seen it yet...

Jesse

  reply	other threads:[~2007-06-12 15:39 UTC|newest]

Thread overview: 118+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-06 19:29 [PATCH] trim memory not covered by WB MTRRs Jesse Barnes
2007-06-06 20:26 ` Justin Piszcz
2007-06-06 20:28   ` Jesse Barnes
2007-06-06 20:31     ` Jesse Barnes
2007-06-06 20:37       ` Justin Piszcz
2007-06-06 20:50         ` Jesse Barnes
2007-06-06 21:26           ` Justin Piszcz
2007-06-06 21:53 ` Justin Piszcz
2007-06-06 22:03   ` Justin Piszcz
2007-06-06 22:05     ` Jesse Barnes
2007-06-06 22:07       ` Justin Piszcz
2007-06-06 22:13       ` Justin Piszcz
2007-06-06 22:24         ` Jesse Barnes
2007-06-06 22:26           ` Justin Piszcz
2007-06-06 22:28             ` Jesse Barnes
2007-06-06 22:31               ` Justin Piszcz
2007-06-06 22:35               ` Justin Piszcz
2007-06-06 22:37               ` Randy Dunlap
2007-06-06 22:46                 ` Justin Piszcz
2007-06-06 22:54                 ` Justin Piszcz
2007-06-06 23:11                   ` Randy Dunlap
2007-06-06 23:15                     ` Justin Piszcz
2007-06-06 23:34                       ` Jesse Barnes
2007-06-07  8:10                         ` Justin Piszcz
2007-06-06 22:39               ` Justin Piszcz
2007-06-06 22:57               ` Justin Piszcz
2007-06-06 23:20                 ` Jesse Barnes
2007-06-06 23:24                   ` Justin Piszcz
2007-06-06 23:27                     ` Jesse Barnes
2007-06-07  8:51                       ` Andi Kleen
2007-06-07  8:53                         ` Justin Piszcz
2007-06-07  9:55                         ` Satyam Sharma
2007-06-07 17:33                         ` Jesse Barnes
2007-06-07  7:45 ` Eric W. Biederman
2007-06-07 17:30   ` Jesse Barnes
2007-06-08 23:13     ` Eric W. Biederman
2007-06-12 15:39       ` Jesse Barnes [this message]
2007-06-07  8:16 ` Andi Kleen
2007-06-07 17:35   ` Jesse Barnes
2007-06-07 17:40     ` Justin Piszcz
2007-06-07 14:41 ` Pavel Machek
2007-06-08  0:20 ` Andrew Morton
2007-06-08  1:33   ` Jesse Barnes
2007-06-08 21:15 ` Andrew Morton
2007-06-08 21:28   ` Jesse Barnes
2007-06-13  1:11 ` Eric W. Biederman
2007-06-13  2:29   ` Jesse Barnes
2007-06-13 22:19     ` Eric W. Biederman
2007-06-20 11:22 ` Helge Hafting
2007-06-20 14:37   ` Andi Kleen
  -- strict thread matches above, loose matches on Subject: below --
2007-06-07 22:30 Jesse Barnes
2007-06-07 22:50 ` Justin Piszcz
2007-06-07 22:53 ` Justin Piszcz
2007-06-07 23:00 ` Justin Piszcz
2007-06-08  8:20 ` Justin Piszcz
2007-06-12 14:50 ` Pavel Machek
2007-06-12 15:29   ` Jesse Barnes
2007-06-12 15:48     ` Andi Kleen
2007-06-12 21:30     ` Pavel Machek
2007-06-12 21:31       ` Justin Piszcz
2007-06-12 21:38       ` Ray Lee
2007-06-12 21:55         ` Pavel Machek
2007-06-13  0:25           ` Ray Lee
2007-06-13  8:22             ` Pavel Machek
2007-06-14 19:38 ` Pim Zandbergen
2007-06-14 20:26   ` Justin Piszcz
2007-06-14 21:18     ` Jesse Barnes
2007-06-14 21:21       ` Justin Piszcz
2007-06-14 21:26         ` Jesse Barnes
2007-06-15 10:21       ` Pim Zandbergen
2007-06-15 16:20         ` Jesse Barnes
2007-06-21 14:24           ` Pim Zandbergen
2007-06-21 14:28             ` Justin Piszcz
2007-06-25 16:31             ` Pim Zandbergen
2007-06-25 16:34               ` Justin Piszcz
2007-06-15 10:17     ` Pim Zandbergen
2007-06-15 10:34       ` Justin Piszcz
2007-06-15 17:28       ` Jesse Barnes
2007-06-20 13:55         ` Pim Zandbergen
2007-06-21 19:40 ` Yinghai Lu
2007-06-21 19:56   ` Jesse Barnes
     [not found] <fa.i7vJP3lxWAlyOLjcsqOWPKlixD8@ifi.uio.no>
     [not found] ` <fa.3ijVoClbWNHWrMhDABWjNPxp+wo@ifi.uio.no>
     [not found]   ` <fa.ZqgSvRGj/scOmd0AwnU6e21Gcwc@ifi.uio.no>
     [not found]     ` <fa.oNsjw768fkDpx3oef91fjAQs1Iw@ifi.uio.no>
     [not found]       ` <fa.x8ZCt4n0yXI1llhRq4wfjNfqK4w@ifi.uio.no>
2007-06-08  1:57         ` Robert Hancock
     [not found] <8tyOc-8f0-17@gated-at.bofh.it>
2007-06-13  6:52 ` Bodo Eggert
2007-06-13 16:19   ` Dave Jones
2007-06-25 21:34 Jesse Barnes
2007-06-25 21:45 ` Justin Piszcz
2007-06-25 22:01 ` Andrew Morton
2007-06-25 22:05   ` Jesse Barnes
2007-06-25 22:29     ` Justin Piszcz
2007-06-25 23:34 ` Andi Kleen
2007-06-25 23:36   ` Jesse Barnes
2007-06-26  0:54     ` Eric W. Biederman
2007-06-26  3:29       ` Jesse Barnes
2007-06-26  3:30         ` Jesse Barnes
2007-06-26 15:03           ` Andi Kleen
2007-06-26 15:07             ` Jesse Barnes
2007-06-26 15:18               ` Jesse Barnes
2007-06-26 15:39       ` Andi Kleen
2007-06-26 15:54         ` Yinghai Lu
2007-06-26 16:06         ` Eric W. Biederman
2007-06-26 17:38           ` Andi Kleen
2007-06-26 18:55             ` Yinghai Lu
2007-06-26 15:02     ` Andi Kleen
2007-06-26 15:38       ` Jesse Barnes
2007-06-27 10:44 ` Pim Zandbergen
2007-06-27 11:22   ` Andi Kleen
2007-06-27 11:40     ` Pim Zandbergen
2007-06-27 11:44       ` Justin Piszcz
2007-06-27 14:22   ` Mauro Giachero
2007-06-27 15:04     ` Jesse Barnes
2007-06-27 16:00       ` Pim Zandbergen
2007-06-27 16:07         ` Jesse Barnes
2007-06-27 16:22         ` Jesse Barnes
2007-06-27 17:02           ` Pim Zandbergen
2007-06-27 17:06             ` Jesse Barnes
2007-06-27 17:17               ` Pim Zandbergen
2007-07-05 12:12 ` Pavel Machek
2007-07-05 12:16   ` Justin Piszcz

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