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From: Karim Yaghmour <karim@opersys.com>
To: Andrea Arcangeli <andrea@e-mind.com>
Cc: Dan Kegel <dank@kegel.com>, Andrew Morton <akpm@zip.com.au>,
	Hugh Dickins <hugh@veritas.com>, Christoph Rohland <cr@sap.com>,
	Jens Axboe <axboe@suse.de>,
	linux-kernel@vger.kernel.org,
	Linus Torvalds <torvalds@transmeta.com>
Subject: Re: patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)]
Date: Fri, 24 May 2002 17:18:53 -0400	[thread overview]
Message-ID: <3CEEAE3D.EB64A3AA@opersys.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0204292127480.1709-100000@localhost.localdomain> <3CEDF94C.592636A6@kegel.com> <3CEDFCED.D10CD618@zip.com.au> <3CEE806D.D52FBEA5@kegel.com> <20020524202658.GI15703@dualathlon.random>


Just wanting to put the record straight here about the rtlinux patent.

Andrea Arcangeli wrote:
> risk a fragmentation. Until it was only rtlinux to be patented that is
> never been a showstopper because real time apps are a niche market and
> they're not mainstream

I've been involved in fighting this patent for the last 2 years. During
this time, I have met and talked with many people about this issue. Today,
I can assure you that the rtlinux patent is definitely a show-stopper for
Linux.

As it stands now, Linux will never be a viable embedded OS until someone
gets rid of the rtlinux patent. As a matter of fact, many people in the
industry decide to go with WinCE precisely because of the rtlinux patent.

Many in the real-time Linux community are very worried by the fact that
the kernel developers do indeed see real-time as a niche market because
the members of the real-time Linux community see the damage being done to
Linux's penetration in the embedded field because of the patent.

As the latest VDC report indicates
(http://www.linuxdevices.com/articles/AT6328992055.html), the no. 1
factor inhibiting Linux's adoption as an embedded OS is indeed real-time.

It is no wonder that the established embedded vendors (WindRiver, QNX,
etc.) feel no threat from Linux. They know that every time Linux will
be evaluated, it will be put aside because of the patent.

Given that the embedded field is poised to overtake the desktop and the
server in terms of number of devices deployed, it would seem to me
that this is much more than just a niche market.

Until the rtlinux patent is dismissed, Linux will remain on the fringes
of the real-time and embedded application field. Unfortunately.

Karim

===================================================
                 Karim Yaghmour
               karim@opersys.com
      Embedded and Real-Time Linux Expert
===================================================

  parent reply	other threads:[~2002-05-24 21:29 UTC|newest]

Thread overview: 179+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.21.0204292127480.1709-100000@localhost.localdomain>
     [not found] ` <3CEDF94C.592636A6@kegel.com>
     [not found]   ` <3CEDFCED.D10CD618@zip.com.au>
     [not found]     ` <3CEE806D.D52FBEA5@kegel.com>
2002-05-24 20:26       ` patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)] Andrea Arcangeli
2002-05-24 21:18         ` Anton Altaparmakov
2002-05-24 21:18         ` Karim Yaghmour [this message]
2002-05-24 21:46           ` Linus Torvalds
2002-05-24 23:05             ` Karim Yaghmour
2002-05-24 23:22               ` Larry McVoy
2002-05-24 23:53                 ` Alexander Viro
2002-05-25  4:31                 ` Karim Yaghmour
2002-05-25  4:44                   ` Larry McVoy
2002-05-25  5:20                     ` Karim Yaghmour
2002-05-25  5:39                       ` Larry McVoy
2002-05-25  6:05                         ` Karim Yaghmour
2002-05-25  7:59                         ` Thunder from the hill
2002-05-25 16:14                           ` Larry McVoy
2002-05-25 16:20                             ` Karim Yaghmour
2002-05-25 16:25                               ` Larry McVoy
2002-05-25 16:41                                 ` Karim Yaghmour
2002-05-25 22:47                                   ` Robert Schwebel
2002-05-26  1:06                                     ` Andrew Morton
2002-05-26  5:45                                       ` Robert Schwebel
2002-05-25 17:47                               ` Kurt Wall
2002-05-25 18:13                                 ` Wolfgang Denk
2002-05-25 19:21                                   ` Daniel Phillips
2002-05-25 18:32                                 ` Karim Yaghmour
2002-05-25 18:38                                   ` Mark Mielke
2002-05-25 17:22                           ` Linus Torvalds
2002-05-25 17:49                             ` Karim Yaghmour
2002-05-25 20:07                               ` Daniel Phillips
2002-05-25 20:29                                 ` Andre Hedrick
2002-05-26  2:53                                   ` Alan Cox
2002-05-26  2:17                                     ` Andre Hedrick
2002-05-25 20:53                                 ` Linus Torvalds
2002-05-25 21:19                                   ` Karim Yaghmour
2002-05-25 17:50                             ` Wolfgang Denk
2002-05-25 18:02                               ` Larry McVoy
2002-05-25 18:26                                 ` Wolfgang Denk
2002-05-25 18:44                                   ` Larry McVoy
2002-05-25 19:04                                     ` Wolfgang Denk
2002-05-25 19:52                                     ` Karim Yaghmour
2002-05-25 20:36                                       ` Larry McVoy
2002-05-25 20:51                                         ` Wolfgang Denk
2002-05-25 21:05                                           ` Larry McVoy
2002-05-25 21:20                                             ` Wolfgang Denk
2002-05-25 21:23                                               ` Larry McVoy
2002-05-26  2:46                                                 ` Alan Cox
2002-05-26  3:33                                                   ` Larry McVoy
2002-05-25 21:44                                               ` Daniel Phillips
2002-05-25 23:16                                             ` Robert Schwebel
     [not found]                                               ` <200205260255.g4Q2tkM62553@saturn.cs.uml.edu>
2002-05-26  5:48                                                 ` Robert Schwebel
2002-05-27  5:28                                               ` Calin A. Culianu
2002-05-27 22:12                                                 ` Mark Mielke
2002-05-25 21:14                                         ` Karim Yaghmour
2002-05-26  2:09                                         ` David Schleef
2002-05-26  3:17                                           ` Larry McVoy
2002-05-26  3:45                                             ` David Schleef
2002-05-26  4:03                                               ` Larry McVoy
2002-05-26 19:40                                                 ` Alan Cox
2002-05-26 19:06                                                   ` Larry McVoy
2002-05-26 20:17                                                     ` Alexander Viro
2002-05-26 20:33                                                       ` Larry McVoy
2002-05-26 21:33                                                     ` Alan Cox
2002-05-26 20:44                                                       ` Larry McVoy
2002-05-26  9:13                                               ` patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)]y Der Herr Hofrat
2002-05-26 14:13                                                 ` Robert Schwebel
2002-05-26 16:31                                                 ` Karim Yaghmour
2002-05-26  3:58                                             ` patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)] Alexander Viro
2002-05-26  4:13                                               ` Larry McVoy
2002-05-26  7:30                                                 ` Alexander Viro
2002-05-26 14:42                                                   ` yodaiken
2002-05-26 16:17                                                     ` Karim Yaghmour
2002-05-26 16:27                                                   ` Larry McVoy
2002-05-25 18:12                               ` Linus Torvalds
2002-05-25 18:22                                 ` Karim Yaghmour
2002-05-25 18:33                                   ` Mark Mielke
2002-05-25 18:45                                     ` Karim Yaghmour
2002-05-25 23:27                                     ` Robert Schwebel
2002-05-25 18:44                                   ` Linus Torvalds
2002-05-25 19:14                                     ` Karim Yaghmour
2002-05-25 19:41                                     ` Daniel Phillips
2002-05-25 18:30                                 ` Wolfgang Denk
2002-05-25 18:52                                   ` Linus Torvalds
2002-05-25 21:22                                 ` Albert D. Cahalan
2002-05-25 21:33                                   ` Larry McVoy
2002-05-25 21:39                                     ` Karim Yaghmour
2002-05-25 21:55                                     ` Wolfgang Denk
2002-05-25 22:05                                       ` Larry McVoy
2002-05-25 22:13                                         ` Karim Yaghmour
2002-05-25 22:17                                         ` Wolfgang Denk
2002-05-25 23:10                                           ` Larry McVoy
2002-05-25 23:54                                             ` Wolfgang Denk
2002-05-26  4:05                                               ` Larry McVoy
2002-05-26  6:25                                                 ` Karim Yaghmour
2002-05-25 23:56                                             ` Robert Schwebel
2002-05-26  3:40                                               ` Larry McVoy
2002-05-26  8:05                                                 ` Robert Schwebel
2002-05-26  8:58                                                   ` Wolfgang Denk
2002-05-25 22:19                                         ` Thomas Gleixner
2002-05-25 22:34                                         ` Erwin Rol
2002-05-25 23:17                                           ` Larry McVoy
2002-05-25 23:37                                         ` Robert Schwebel
2002-05-25 23:46                                           ` Larry McVoy
2002-05-26  0:01                                             ` Robert Schwebel
2002-05-26 10:11                                     ` David Woodhouse
2002-05-26 13:04                                       ` Roman Zippel
2002-05-26 13:26                                       ` yodaiken
2002-05-26 14:09                                         ` Roman Zippel
2002-05-26 14:21                                           ` yodaiken
2002-05-26 15:30                                             ` Roman Zippel
2002-05-26 16:55                                               ` yodaiken
2002-05-26 18:00                                                 ` Karim Yaghmour
2002-05-26 18:29                                                   ` Larry McVoy
2002-05-26 21:45                                                     ` Karim Yaghmour
2002-05-26 21:58                                                       ` Wolfgang Denk
2002-05-26 22:12                                                         ` Erwin Rol
2002-05-26 22:34                                                         ` Robert Schwebel
2002-05-26 22:07                                                       ` Mark Mielke
2002-05-26 22:18                                                         ` Karim Yaghmour
2002-05-26 18:20                                                 ` Roman Zippel
2002-05-26 15:58                                             ` Nicholas Knight
2002-05-27  2:42                                             ` Daniel Phillips
2002-05-25 22:58                             ` Robert Schwebel
2002-05-26  0:48                               ` Erik Andersen
2002-05-26  5:31                                 ` Robert Schwebel
2002-05-26 10:19                                   ` Erik Andersen
2002-05-25  6:08                       ` Daniel Phillips
2002-05-25  4:48                   ` Karim Yaghmour
2002-05-25  5:00                     ` Larry McVoy
2002-05-25  9:02                       ` Robert Schwebel
2002-05-25 17:34                       ` Oliver Xymoron
2002-05-24 23:27               ` Linus Torvalds
2002-05-25  3:13                 ` Karim Yaghmour
2002-05-25  3:25                   ` Linus Torvalds
2002-05-25  3:46                     ` Karim Yaghmour
2002-05-25  4:08                       ` Linus Torvalds
2002-05-25  4:25                         ` Larry McVoy
2002-05-25  4:27                         ` Linus Torvalds
2002-05-25  5:53                           ` Daniel Phillips
2002-05-25  4:52                         ` Karim Yaghmour
2002-05-25  9:08                     ` Robert Schwebel
2002-05-25 17:27                       ` Linus Torvalds
2002-05-25 20:30                         ` Daniel Phillips
2002-05-26  2:51                           ` Alan Cox
2002-05-26  4:11                             ` Daniel Phillips
2002-05-26 19:37                               ` Alan Cox
2002-05-26 20:05                                 ` Daniel Phillips
2002-05-27 15:27                                 ` Pavel Machek
2002-05-25 22:33                         ` Robert Schwebel
2002-05-26  0:07                           ` Linus Torvalds
2002-05-25 20:34                             ` Pierre Cloutier
2002-05-26  0:44                               ` Linus Torvalds
2002-05-25 21:03                                 ` Pierre Cloutier
2002-05-26  0:39                             ` Linus Torvalds
2002-05-26  3:12                               ` Oliver Xymoron
2002-05-26  4:20                                 ` Linus Torvalds
2002-05-26  4:25                                   ` yodaiken
2002-05-26 13:50                                   ` Oliver Xymoron
2002-05-26  3:28                               ` patent on O_ATOMICLOOKUP - Warning actual technical content yodaiken
2002-05-26  3:36                                 ` Karim Yaghmour
2002-05-26  4:00                                   ` Andrew Morton
2002-05-26  5:38                                     ` Karim Yaghmour
2002-05-26  1:21                             ` patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)] Roman Zippel
2002-05-26  5:44                             ` Daniel Phillips
2002-05-27  4:12                         ` Calin A. Culianu
2002-05-25  9:05                 ` Robert Schwebel
2002-05-25  8:59               ` Realtime Linux Situation Robert Schwebel
2002-05-24 21:57           ` patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)] Andreas Dilger
2002-05-24 22:37             ` Alan Cox
2002-05-24 23:09               ` Andreas Dilger
2002-05-27 17:36               ` Siemens powermanagment patent? [was Re: patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)]] Pavel Machek
2002-05-27 21:36                 ` Alan Cox
2002-05-24 21:56         ` patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)] Alexander Viro
2002-05-24 22:46         ` Alan Cox
2002-05-24 22:53           ` Alexander Viro
2002-05-27 21:52 Adam J. Richter
2002-05-27 23:26 ` Alan Cox
2002-05-28  6:29 peter
2002-05-28 11:42 ` Alan Cox
2002-05-29 11:25 Robert Kaiser
2002-05-30 22:37 patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17) ] Ed Vance

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