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From: Mika Fischer <mika.fischer@zoopnet.de>
To: Gabriel C <nix.or.die@googlemail.com>
Cc: Arjan van de Ven <arjan@infradead.org>,
	Ingo Molnar <mingo@elte.hu>,
	yhlu.kernel@gmail.com, Andrew Morton <akpm@linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v2
Date: Mon, 28 Apr 2008 18:28:13 +0200	[thread overview]
Message-ID: <4815FB1D.80209@zoopnet.de> (raw)
In-Reply-To: <4815F4F6.1030708@googlemail.com>

Gabriel C schrieb:
>> Ah, so the new X will be able to use the video memory in write-combining
>> mode even if I have an MTRR saying this area is uncachable or write-back?
>>
>> If that is the case, then I agree that this patch is not really needed.

It seems not to be the case, so this is moot anyway :)

> I doubt there will be any usable Xorg release soon.
> And I doubt peoples will run Xorg , mesa , etc master HEAD to have that feature. 
> 
> I think this patch is needed for now but as Ingo said , it should not be default.
> Peoples with these sort problems could boot with some option to enables this workaround.

Well, if it is compiled but inactive by default and can be enabled with
a kernel boot option, this is fine too.

But if it's a compile-time option, I doubt that any distro-kernel would
touch it if it's really dangerous. They're probably more likely to
backport the Xorg stuff if the new Xorg does not get finished in time.

Regards,
 Mika

  reply	other threads:[~2008-04-28 16:28 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-28  6:37 [PATCH] x86: mtrr cleanup for converting continuous to discrete layout Yinghai Lu
2008-04-28  9:06 ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v2 Yinghai Lu
2008-04-28 13:08   ` Ingo Molnar
2008-04-28 13:49     ` Arjan van de Ven
2008-04-28 15:28       ` Mika Fischer
2008-04-28  5:50         ` Arjan van de Ven
2008-04-28 16:01         ` Gabriel C
2008-04-28 16:28           ` Mika Fischer [this message]
2008-04-28 19:44   ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v3 Yinghai Lu
2008-04-28 20:15     ` Ingo Molnar
2008-04-28 20:18       ` Yinghai Lu
2008-04-28 20:29         ` Ingo Molnar
2008-04-28 20:16     ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v4 Yinghai Lu
2008-04-28 22:05       ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v5 Yinghai Lu
2008-04-28 22:36         ` Randy Dunlap
2008-04-28 22:47           ` Yinghai Lu
2008-04-29  2:42         ` Andrew Morton
2008-04-29  3:01           ` Yinghai Lu
     [not found]         ` <200804290157.30651.yhlu.kernel@gmail.com>
2008-04-29  8:59           ` [PATCH 2/2] x86: fix trimming e820 with MTRR holes Yinghai Lu
2008-04-29 11:35             ` Ingo Molnar
2008-04-29 17:18               ` Yinghai Lu
2008-04-29 17:20                 ` Yinghai Lu
2008-04-30  3:25             ` [PATCH] x86: fix trimming e820 with MTRR holes. - fix Yinghai Lu
2008-04-30 12:09               ` Ingo Molnar
2008-04-29  9:00         ` [PATCH 1/2] x86: mtrr cleanup for converting continuous to discrete layout v7 Yinghai Lu
2008-04-29  9:47           ` Gabriel C
2008-04-29 10:30             ` Yinghai Lu
2008-04-29 10:56               ` Yinghai Lu
2008-04-29 11:26                 ` Ingo Molnar
2008-04-29 11:51                 ` Gabriel C
2008-04-29 17:11                   ` Yinghai Lu
2008-04-29 20:25                     ` Gabriel C
2008-04-29 21:49                       ` Yinghai Lu
2008-04-29 23:56                         ` Gabriel C
2008-04-30  0:06                           ` Gabriel C
2008-04-30  0:38                             ` Yinghai Lu
2008-04-30  1:02                               ` Gabriel C
2008-04-30  3:00                                 ` Yinghai Lu
2008-04-30  3:29                                   ` Yinghai Lu
2008-04-30  4:12                                     ` Gabriel C
2008-04-30  4:25                                       ` Yinghai Lu
2008-04-30 12:04                                         ` Gabriel C
2008-04-30 16:26                                           ` Yinghai Lu
2008-04-30  0:13                           ` Yinghai Lu
2008-04-29 10:52           ` [PATCH 1/2] x86: mtrr cleanup for converting continuous to discrete layout v8 Yinghai Lu
2008-04-29 13:07             ` Ingo Molnar
2008-04-29 17:25               ` Yinghai Lu
2008-04-29 20:46             ` Randy Dunlap
2008-04-29 21:54               ` Yinghai Lu
2008-04-30  3:25             ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v8 - fix Yinghai Lu
2008-04-30 12:09               ` Ingo Molnar
2008-05-01  8:00               ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect Yinghai Lu
2008-05-01 11:45                 ` Gabriel C
2008-05-02  0:06                   ` Yinghai Lu
2008-05-02  0:29                     ` Gabriel C
2008-05-02  0:35                       ` Yinghai Lu
2008-05-02  1:18                         ` Gabriel C
2008-05-02  1:55                           ` Yinghai Lu
2008-05-01 12:09                 ` Mika Fischer
2008-05-01 16:35                   ` Yinghai Lu
2008-05-01 16:59                     ` Mika Fischer
2008-05-01 17:40                       ` Yinghai Lu
2008-05-01 15:09                 ` Randy Dunlap
2008-05-01 16:38                   ` Yinghai Lu
2008-05-01 18:57                 ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v2 Yinghai Lu
2008-05-01 19:42                   ` H. Peter Anvin
2008-05-01 21:02                     ` Yinghai Lu
2008-05-01 21:10                       ` H. Peter Anvin
2008-05-01 21:20                         ` Yinghai Lu
2008-05-01 21:26                           ` H. Peter Anvin
2008-05-01 21:31                             ` Yinghai Lu
2008-05-01 21:33                               ` H. Peter Anvin
2008-05-01 21:44                                 ` Yinghai Lu
2008-05-01 21:49                                   ` H. Peter Anvin
2008-05-01 22:52                                     ` Yinghai Lu
2008-05-01 22:57                                       ` H. Peter Anvin
2008-05-01 23:10                                         ` Yinghai Lu
2008-05-02  0:52                   ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v3 Yinghai Lu
2008-05-02  9:40                     ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v4 Yinghai Lu
2008-04-29 19:00         ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v5 Eric W. Biederman
2008-04-29 20:04           ` Yinghai Lu
2008-04-29 20:29             ` Eric W. Biederman
2008-04-29 21:57               ` Yinghai Lu
2008-04-29 22:09                 ` Ingo Molnar
2008-04-29 22:18                   ` Yinghai Lu
2008-04-29 22:14                 ` Eric W. Biederman
2008-04-29 22:54                   ` Thomas Gleixner
2008-04-30  1:16                     ` Eric W. Biederman
2008-04-30  9:57                       ` Alan Cox

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