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From: "\"C. Bergström\"" <cbergstrom@pathscale.com>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Ingo Molnar <mingo@elte.hu>, Ben Skeggs <skeggsb@gmail.com>,
	Dave Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org,
	Jesse Barnes <jbarnes@virtuousgeek.org>,
	dri-devel@lists.sf.net,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [git pull] drm request 3
Date: Fri, 05 Mar 2010 14:17:07 +0700	[thread overview]
Message-ID: <4B90AFF3.3030100@pathscale.com> (raw)
In-Reply-To: <84144f021003042306w2e017efbva2be364c1c4980a7@mail.gmail.com>

Pekka Enberg wrote:
> On Fri, Mar 5, 2010 at 8:49 AM, Ingo Molnar <mingo@elte.hu> wrote:
>   
>> The conclusion is crystal clear, breaking an ABI via a "flag day"
>> cleanup/feature/etc is:
>>
>>  - wrong
>>
>>  - harmful
>>
>>  - limits the developer base
>>
>>  - limits the tester base
>>
>>  - wastes time and effort. (fewer developers/testers means that while _this_
>>   feature was easier to add, all your _future_ features will be a bit harder
>>   to do. It compounds up.)
>>
>>  - so it hurts even the very developer who is most convinced that this was the
>>   right thing to do
>>
>> It's a bad technical decision throughout. It's masochistic and often suicidal
>> to just about any project in essence. I've seen projects that did it once and
>> died just due to that single act of stupidity. I've seen projects that have
>> done it a few times and took the usage hit, limped along with the wounds and
>> never grew to the size they could have achieved. I've seen projects that did
>> it once, took the hit, learned from it and never did it again.
>>     
>
> Agreed. What bothers me in this discussion is that people keep
> bringing up the fact that nouveau is mostly developed by volunteers
> and thus it doesn't make sense to make sure it's backwards (or
> forwards) compatible. But the way I see it, it's the complete
> opposite. It's _more_ important to support ABIs for community-driven
> efforts because you're relying on people who by definition don't have
> time to waste. While the nouveau people might have good intentions,
> I'm afraid they might be severely limiting their developer and tester
> base because they're not focused on real world problems (like the ones
> Linus is seeing).
staging != stable

Nobody guaranteed a stable API for staging and in fact it was stated 
previously it needed to be changed.  Please lets just get back to work 
and stop declaring the sky is falling.

  parent reply	other threads:[~2010-03-05  7:15 UTC|newest]

Thread overview: 290+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-02 23:56 [git pull] drm request 3 Dave Airlie
2010-03-04 18:18 ` Linus Torvalds
2010-03-04 18:27   ` Matt Turner
2010-03-04 18:27   ` Matt Turner
2010-03-04 18:36   ` Jesse Barnes
2010-03-04 18:39     ` Jesse Barnes
2010-03-04 18:51       ` Linus Torvalds
2010-03-04 18:56         ` Jesse Barnes
2010-03-04 19:08           ` Linus Torvalds
2010-03-04 19:25             ` Dave Airlie
2010-03-04 19:25             ` Dave Airlie
2010-03-04 20:01               ` Linus Torvalds
2010-03-04 22:06                 ` Dave Airlie
2010-03-05  0:08                   ` Linus Torvalds
2010-03-05  0:08                   ` Linus Torvalds
2010-03-05  0:28                     ` Ben Skeggs
2010-03-05  0:28                     ` Ben Skeggs
2010-03-05  0:41                       ` Linus Torvalds
2010-03-05  0:41                         ` Linus Torvalds
2010-03-05  0:56                         ` Luc Verhaegen
2010-03-05  1:08                           ` Linus Torvalds
2010-03-05  1:16                             ` Luc Verhaegen
2010-03-05  1:16                               ` Luc Verhaegen
2010-03-05  1:22                               ` Linus Torvalds
2010-03-05  1:22                               ` Linus Torvalds
2010-03-05  1:20                             ` Linus Torvalds
2010-03-05  1:28                               ` Dave Airlie
2010-03-05  1:28                                 ` Dave Airlie
2010-03-05  5:17                                 ` Linus Torvalds
2010-03-05  5:17                                 ` Linus Torvalds
2010-03-05  5:22                                   ` Dave Airlie
2010-03-05  5:22                                   ` Dave Airlie
2010-03-05  5:30                                     ` Linus Torvalds
2010-03-05  5:30                                       ` Linus Torvalds
2010-03-05  5:42                                       ` Linus Torvalds
2010-03-05  5:42                                       ` Linus Torvalds
2010-03-05  1:20                             ` Linus Torvalds
2010-03-05  1:08                           ` Linus Torvalds
2010-03-05  0:56                         ` Luc Verhaegen
2010-03-05  1:19                         ` Upstream first policy Kyle McMartin
2010-03-05  1:28                           ` Linus Torvalds
2010-03-05  2:00                         ` [git pull] drm request 3 Tony Luck
2010-03-05  2:00                         ` Tony Luck
2010-03-05 20:34                         ` Felipe Contreras
2010-03-05 20:34                         ` Felipe Contreras
2010-03-05  6:49                       ` Ingo Molnar
2010-03-05  6:49                         ` Ingo Molnar
2010-03-05  7:06                         ` Pekka Enberg
2010-03-05  7:06                           ` Pekka Enberg
2010-03-05  7:17                           ` "C. Bergström"
2010-03-05  7:17                           ` "C. Bergström" [this message]
2010-03-05  7:53                             ` Ingo Molnar
2010-03-05  7:53                             ` Ingo Molnar
2010-03-05 15:18                             ` Linus Torvalds
2010-03-05 15:18                             ` Linus Torvalds
2010-03-05  7:44                           ` Ingo Molnar
2010-03-05  7:44                           ` Ingo Molnar
2010-03-05  7:58                             ` Dave Airlie
2010-03-05  7:58                             ` Dave Airlie
2010-03-05  8:16                             ` Stephane Marchesin
2010-03-05  8:16                             ` Stephane Marchesin
2010-03-05 10:00                             ` Making Xorg easier to test (was Re: [git pull] drm request 3) Carlos R. Mafra
2010-03-05 10:00                             ` Carlos R. Mafra
2010-03-05 12:54                               ` Valdis.Kletnieks
2010-03-05 12:54                               ` Valdis.Kletnieks
2010-03-05 15:22                               ` Matt Turner
2010-03-05 15:22                               ` Matt Turner
2010-03-05 15:41                                 ` Daniel Stone
2010-03-05 15:41                                 ` Daniel Stone
2010-03-05 15:49                                   ` Making Xorg easier to test David Miller
2010-03-05 15:49                                   ` David Miller
2010-03-05 16:03                                     ` Alan Cox
2010-03-05 16:03                                     ` Alan Cox
2010-03-05 16:06                                     ` Daniel Stone
2010-03-05 16:06                                     ` Daniel Stone
2010-03-05 17:50                                     ` Xavier Bestel
2010-03-05 17:54                                       ` David Miller
2010-03-05 17:54                                       ` David Miller
2010-03-05 18:02                                         ` Jesse Barnes
2010-03-05 18:05                                           ` David Miller
2010-03-05 18:05                                           ` David Miller
2010-03-05 18:02                                         ` Jesse Barnes
2010-03-05 17:50                                     ` Xavier Bestel
2010-03-05 15:53                               ` Making Xorg easier to test (was Re: [git pull] drm request 3) Linus Torvalds
2010-03-05 15:53                               ` Linus Torvalds
2010-03-05 16:11                                 ` Daniel Stone
2010-03-05 16:30                                   ` Linus Torvalds
2010-03-05 16:30                                   ` Linus Torvalds
2010-03-08  8:57                                     ` Daniel Stone
2010-03-08  8:57                                     ` Daniel Stone
2010-03-05 16:11                                 ` Daniel Stone
2010-03-05 16:26                                 ` Jesse Barnes
2010-03-05 16:26                                 ` Jesse Barnes
2010-03-05 13:55                             ` [git pull] drm request 3 Luc Verhaegen
2010-03-05 13:55                             ` Luc Verhaegen
2010-03-05 16:21                             ` Jesse Barnes
2010-03-05 16:21                             ` Jesse Barnes
2010-03-05 12:38                         ` Alan Cox
2010-03-05 14:37                           ` David Miller
2010-03-05 14:37                           ` David Miller
2010-03-05 14:46                             ` Mike Galbraith
2010-03-05 18:05                               ` Ingo Molnar
2010-03-05 18:05                               ` Ingo Molnar
2010-03-05 14:46                             ` Mike Galbraith
2010-03-05 15:09                             ` Alan Cox
2010-03-05 15:11                               ` David Miller
2010-03-05 15:11                               ` David Miller
2010-03-05 15:09                             ` Alan Cox
2010-03-05 15:17                             ` Daniel Stone
2010-03-05 15:17                               ` Daniel Stone
2010-03-05 15:26                               ` David Miller
2010-03-05 15:26                               ` David Miller
2010-03-05 15:40                                 ` Daniel Stone
2010-03-05 15:40                                 ` Daniel Stone
2010-03-05 15:48                                   ` David Miller
2010-03-05 15:48                                   ` David Miller
2010-03-05 16:02                                     ` Alan Cox
2010-03-05 16:05                                       ` David Miller
2010-03-05 17:58                                         ` Younes Manton
2010-03-05 17:58                                         ` Younes Manton
2010-03-05 16:05                                       ` David Miller
2010-03-05 16:13                                       ` Linus Torvalds
2010-03-05 16:23                                         ` Alan Cox
2010-03-05 16:23                                         ` Alan Cox
2010-03-05 16:44                                           ` Linus Torvalds
2010-03-05 17:04                                             ` Alan Cox
2010-03-05 17:04                                             ` Alan Cox
2010-03-05 17:10                                               ` "C. Bergström"
2010-03-05 17:19                                               ` tytso
2010-03-05 23:54                                                 ` Garry Hurley
2010-03-05 17:19                                               ` tytso
2010-03-05 16:44                                           ` Linus Torvalds
2010-03-05 16:13                                       ` Linus Torvalds
2010-03-05 16:02                                     ` Alan Cox
2010-03-05 16:04                                     ` Daniel Stone
2010-03-05 16:06                                       ` David Miller
2010-03-05 16:31                                         ` Alan Cox
2010-03-05 17:36                                           ` Jerome Glisse
2010-03-05 17:36                                           ` Jerome Glisse
2010-03-05 16:31                                         ` Alan Cox
2010-03-05 16:06                                       ` David Miller
2010-03-05 16:46                                       ` tytso
2010-03-05 19:38                                         ` Corbin Simpson
2010-03-05 19:38                                           ` Corbin Simpson
2010-03-05 21:01                                           ` Corbin Simpson
2010-03-05 21:01                                           ` Corbin Simpson
2010-03-05 21:51                                           ` tytso
2010-03-05 21:51                                           ` tytso
     [not found]                                             ` <e7bd23c31003051452i117eadc1m5284ac5d14b6465d@mail.gmail.com>
2010-03-05 22:59                                               ` Corbin Simpson
2010-03-05 23:50                                             ` Tilman Schmidt
2010-03-05 23:50                                             ` Tilman Schmidt
2010-03-05 16:46                                       ` tytso
2010-03-05 17:23                                       ` Linus Torvalds
2010-03-05 17:23                                       ` Linus Torvalds
     [not found]                                       ` <hmra63$898$1@xyzzy.farnsworth.org>
2010-03-06  6:17                                         ` Dale Farnsworth
2010-03-06 17:21                                       ` Valdis.Kletnieks
2010-03-06 17:21                                         ` Valdis.Kletnieks
2010-03-05 16:04                                     ` Daniel Stone
2010-03-05 15:56                                   ` Luca Barbieri
2010-03-05 15:56                                   ` Luca Barbieri
2010-03-05 16:13                                     ` Alan Cox
2010-03-05 16:19                                       ` Linus Torvalds
2010-03-05 16:19                                       ` Linus Torvalds
2010-03-05 16:38                                         ` Alan Cox
2010-03-05 16:38                                         ` Alan Cox
2010-03-05 20:59                                         ` Felipe Contreras
2010-03-05 20:59                                         ` Felipe Contreras
2010-03-05 16:25                                       ` Luca Barbieri
2010-03-05 16:25                                       ` Luca Barbieri
2010-03-05 16:13                                     ` Alan Cox
2010-03-05 15:42                                 ` Alan Cox
2010-03-05 15:42                                 ` Alan Cox
2010-03-05 16:07                                 ` Linus Torvalds
2010-03-05 16:07                                 ` Linus Torvalds
2010-03-05 17:42                               ` Jeff Garzik
2010-03-05 19:11                                 ` Justin P. mattock
2010-03-05 19:11                                 ` Justin P. mattock
2010-03-05 17:42                               ` Jeff Garzik
2010-03-05 12:38                         ` Alan Cox
2010-03-04 22:06                 ` Dave Airlie
2010-03-04 19:33             ` Jesse Barnes
2010-03-04 19:33             ` Jesse Barnes
2010-03-04 19:08           ` Linus Torvalds
2010-03-04 18:56         ` Jesse Barnes
2010-03-04 19:12         ` Matthew Garrett
2010-03-04 19:12         ` Matthew Garrett
2010-03-04 18:51       ` Linus Torvalds
2010-03-04 18:39     ` Jesse Barnes
2010-03-04 18:45     ` Linus Torvalds
2010-03-04 18:45     ` Linus Torvalds
2010-03-04 18:36   ` Jesse Barnes
2010-03-04 18:43   ` Linus Torvalds
2010-03-04 18:50     ` Matthew Garrett
2010-03-04 18:50     ` Matthew Garrett
2010-03-04 18:55       ` Linus Torvalds
2010-03-04 19:01         ` Linus Torvalds
2010-03-04 19:01         ` Linus Torvalds
2010-03-04 19:04         ` Matthew Garrett
2010-03-04 19:04         ` Matthew Garrett
2010-03-04 19:14           ` Linus Torvalds
2010-03-04 19:14           ` Linus Torvalds
2010-03-04 19:25             ` Matthew Garrett
2010-03-04 19:25             ` Matthew Garrett
2010-03-04 19:41               ` Linus Torvalds
2010-03-04 19:41               ` Linus Torvalds
2010-03-04 19:53                 ` Matthew Garrett
2010-03-04 20:07                   ` Linus Torvalds
2010-03-04 20:46                     ` Matthew Garrett
2010-03-04 20:46                     ` Matthew Garrett
2010-03-04 20:57                     ` Stephane Marchesin
2010-03-04 20:57                       ` Stephane Marchesin
2010-03-04 22:54                       ` Linus Torvalds
2010-03-04 23:03                         ` Dave Airlie
2010-03-04 23:03                         ` Dave Airlie
2010-03-04 23:19                           ` Linus Torvalds
2010-03-04 23:19                             ` Linus Torvalds
2010-03-04 23:27                             ` Michel Dänzer
2010-03-04 23:27                               ` Michel Dänzer
2010-03-04 23:28                             ` Linus Torvalds
2010-03-04 23:35                               ` Dave Airlie
2010-03-04 23:35                                 ` Dave Airlie
2010-03-04 23:53                                 ` Linus Torvalds
2010-03-04 23:53                                   ` Linus Torvalds
2010-03-05  0:24                                   ` Ed Tomlinson
2010-03-05  0:24                                   ` Ed Tomlinson
2010-03-05  0:24                                   ` Kyle McMartin
2010-03-05  0:24                                   ` Kyle McMartin
2010-03-04 23:28                             ` Linus Torvalds
2010-03-04 23:28                             ` Dave Airlie
2010-03-04 23:28                               ` Dave Airlie
2010-03-04 23:05                         ` Jesse Barnes
2010-03-04 23:05                           ` Jesse Barnes
2010-03-05 12:26                         ` Alan Cox
2010-03-05 12:26                         ` Alan Cox
2010-03-04 22:54                       ` Linus Torvalds
2010-03-04 19:53                 ` Matthew Garrett
2010-03-04 22:28             ` Adam Jackson
2010-03-04 22:28               ` Adam Jackson
2010-03-04 23:03               ` Linus Torvalds
2010-03-04 23:14                 ` Stephane Marchesin
2010-03-04 23:14                 ` Stephane Marchesin
2010-03-05 12:29                 ` Alan Cox
2010-03-05 12:29                 ` Alan Cox
2010-03-05 16:18                 ` Adam Jackson
2010-03-05 16:18                 ` Adam Jackson
2010-03-04 23:03               ` Linus Torvalds
2010-03-04 19:32           ` Jeff Garzik
2010-03-04 22:18             ` Adam Jackson
2010-03-04 22:18             ` Adam Jackson
2010-03-04 22:21               ` Jeff Garzik
2010-03-04 22:21               ` Jeff Garzik
2010-03-04 22:59                 ` Adam Jackson
2010-03-04 22:59                 ` Adam Jackson
2010-03-05 11:24                   ` Jeff Garzik
2010-03-05 15:46                     ` Adam Jackson
2010-03-05 15:46                     ` Adam Jackson
2010-03-05 11:24                   ` Jeff Garzik
2010-03-05  1:47             ` Robert Hancock
2010-03-05  1:47             ` Robert Hancock
2010-03-05 12:21             ` Alan Cox
2010-03-05 19:30               ` Eric Anholt
2010-03-05 20:39                 ` Luca Barbieri
2010-03-05 20:39                 ` Luca Barbieri
2010-03-05 19:30               ` Eric Anholt
2010-03-05 12:21             ` Alan Cox
2010-03-04 19:32           ` Jeff Garzik
2010-03-04 18:55       ` Linus Torvalds
2010-03-06 15:23     ` Sergio Monteiro Basto
2010-03-06 17:40       ` Linus Torvalds
2010-03-06 17:40         ` Linus Torvalds
2010-03-06 19:06         ` Sergio Monteiro Basto
2010-03-06 19:06           ` Sergio Monteiro Basto
2010-03-06 19:28           ` Linus Torvalds
2010-03-06 19:28             ` Linus Torvalds
2010-03-06 20:49             ` tytso
2010-03-06 20:49               ` tytso
2010-03-06 20:52               ` Alan Cox
2010-03-06 22:38                 ` tytso
2010-03-06 22:38                   ` tytso
2010-03-06 20:52               ` Alan Cox
2010-03-04 18:43   ` Linus Torvalds
2010-03-04 21:21   ` Maarten Maathuis
2010-03-04 21:21     ` Maarten Maathuis
2010-03-04 21:22     ` Maarten Maathuis
2010-03-04 21:22     ` Maarten Maathuis
2010-03-04 21:27   ` Maarten Maathuis
2010-03-04 21:27   ` Maarten Maathuis
2010-03-04 18:18 ` Linus Torvalds
  -- strict thread matches above, loose matches on Subject: below --
2010-03-05 22:18 Jonas Ritz
2010-03-02 23:56 Dave Airlie

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