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From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
	Tejun Heo <tj@kernel.org>,
	"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
	lkml <linux-kernel@vger.kernel.org>,
	Daniel Taylor <Daniel.Taylor@wdc.com>,
	Jeff Garzik <jeff@garzik.org>, Mark Lord <kernel@teksavvy.com>,
	tytso@mit.edu, hirofumi@mail.parknet.co.jp,
	Andrew Morton <akpm@linux-foundation.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	irtiger@gmail.com, Matthew Wilcox <matthew@wil.cx>,
	aschnell@suse.de, knikanth@suse.de, jdelvare@suse.de,
	Karel Zak <kzak@redhat.com>, Jim Meyering <jim@meyering.net>
Subject: Re: ATA 4 KiB sector issues.
Date: Mon, 08 Mar 2010 15:01:06 -0500	[thread overview]
Message-ID: <yq1pr3ea8hp.fsf@sermon.lab.mkp.net> (raw)
In-Reply-To: <4B954224.6010208@zytor.com> (H. Peter Anvin's message of "Mon, 08 Mar 2010 10:29:56 -0800")

>>>>> "hpa" == H Peter Anvin <hpa@zytor.com> writes:

>> Huh, what?  My homedir is on a 4KiB LBS/PBS drive and has been for ~2
>> years.

hpa> For > 2 TiB drives with 4 KiB logical sectors and MS-DOS partition
hpa> tables, it is.

Ah, that.  Already fixed, I believe.


>> With regards to XP compatibility I don't think we should go too much
>> out of our way to accommodate it.  XP has been disowned by its master
>> and I think virtualization will take care of the rest.

hpa> I think that's is wildly optimistic, 

I don't expect XP to go away any time soon.  But do I think that the
number of fresh XP installs in combination with Linux will be fairly
limited.  And general lack of hardware enablement will eventually kill
off XP on raw metal.

I think it's ok that we have stop-gap solutions in place for
interoperability.  But I wouldn't want to waste all our resources on
designing for the past.  I'm much more interested in making sure that
single-boot Linux is doing the right thing.


>> FWIW, recent fdisk has a command line flag that will enable/disable
>> DOS compatible layout.

hpa> Yes, unfortunately it is still on by default.

I agree that this is a don't-be-broken option and I would prefer it the
other way around (I know that's the plan for the next release.  I just
hope the distributions get things right).

-- 
Martin K. Petersen	Oracle Linux Engineering

WARNING: multiple messages have this Message-ID (diff)
From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
	Tejun Heo <tj@kernel.org>,
	"linux-ide\@vger.kernel.org" <linux-ide@vger.kernel.org>,
	lkml <linux-kernel@vger.kernel.org>,
	Daniel Taylor <Daniel.Taylor@wdc.com>,
	Jeff Garzik <jeff@garzik.org>, Mark Lord <kernel@teksavvy.com>,
	tytso@mit.edu, hirofumi@mail.parknet.co.jp,
	Andrew Morton <akpm@linux-foundation.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	irtiger@gmail.com, Matthew Wilcox <matthew@wil.cx>,
	aschnell@suse.de, knikanth@suse.de, jdelvare@suse.de,
	Karel Zak <kzak@redhat.com>, Jim Meyering <jim@meyering.net>
Subject: Re: ATA 4 KiB sector issues.
Date: Mon, 08 Mar 2010 15:01:06 -0500	[thread overview]
Message-ID: <yq1pr3ea8hp.fsf@sermon.lab.mkp.net> (raw)
In-Reply-To: <4B954224.6010208@zytor.com> (H. Peter Anvin's message of "Mon, 08 Mar 2010 10:29:56 -0800")

>>>>> "hpa" == H Peter Anvin <hpa@zytor.com> writes:

>> Huh, what?  My homedir is on a 4KiB LBS/PBS drive and has been for ~2
>> years.

hpa> For > 2 TiB drives with 4 KiB logical sectors and MS-DOS partition
hpa> tables, it is.

Ah, that.  Already fixed, I believe.


>> With regards to XP compatibility I don't think we should go too much
>> out of our way to accommodate it.  XP has been disowned by its master
>> and I think virtualization will take care of the rest.

hpa> I think that's is wildly optimistic, 

I don't expect XP to go away any time soon.  But do I think that the
number of fresh XP installs in combination with Linux will be fairly
limited.  And general lack of hardware enablement will eventually kill
off XP on raw metal.

I think it's ok that we have stop-gap solutions in place for
interoperability.  But I wouldn't want to waste all our resources on
designing for the past.  I'm much more interested in making sure that
single-boot Linux is doing the right thing.


>> FWIW, recent fdisk has a command line flag that will enable/disable
>> DOS compatible layout.

hpa> Yes, unfortunately it is still on by default.

I agree that this is a don't-be-broken option and I would prefer it the
other way around (I know that's the plan for the next release.  I just
hope the distributions get things right).

-- 
Martin K. Petersen	Oracle Linux Engineering

  reply	other threads:[~2010-03-08 20:03 UTC|newest]

Thread overview: 155+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-08  3:48 ATA 4 KiB sector issues Tejun Heo
2010-03-08  3:48 ` Tejun Heo
2010-03-08  5:38 ` Greg Freemyer
2010-03-08  7:00 ` James Bottomley
2010-03-08  7:53   ` H. Peter Anvin
2010-03-08 15:34     ` Martin K. Petersen
2010-03-08 15:34       ` Martin K. Petersen
2010-03-09 22:36       ` Daniel Taylor
2010-03-09 22:36         ` Daniel Taylor
2010-03-09 22:46     ` Greg Freemyer
2010-03-10  0:05       ` Tejun Heo
2010-03-10  0:14         ` Daniel Taylor
2010-03-10  0:14           ` Daniel Taylor
2010-03-10  0:26           ` Tejun Heo
2010-03-10  0:36             ` H. Peter Anvin
2010-03-10  5:17           ` H. Peter Anvin
2010-03-10  7:09           ` Gabor Gombas
2010-03-10  0:32       ` H. Peter Anvin
2010-03-10 10:46         ` Johannes Stezenbach
2010-03-10 11:22           ` H. Peter Anvin
2010-03-08  7:56   ` H. Peter Anvin
2010-03-08 15:33   ` Martin K. Petersen
2010-03-08 15:33     ` Martin K. Petersen
2010-03-08 15:38     ` Martin K. Petersen
2010-03-08 15:38       ` Martin K. Petersen
2010-03-08 15:41       ` Martin K. Petersen
2010-03-08 15:41         ` Martin K. Petersen
2010-03-08 18:50         ` H. Peter Anvin
2010-03-08 18:58           ` James Bottomley
2010-03-08 19:11             ` H. Peter Anvin
2010-03-08 20:02             ` Cláudio Martins
2010-03-08 21:07               ` Martin K. Petersen
2010-03-08 21:07                 ` Martin K. Petersen
2010-03-08 20:19           ` Martin K. Petersen
2010-03-08 20:19             ` Martin K. Petersen
2010-03-08 21:16             ` H. Peter Anvin
2010-03-10  0:34           ` Tejun Heo
2010-03-10  7:53         ` Matthew Wilcox
2010-03-10 13:47           ` Jeff Garzik
2010-03-10 16:19             ` Damian Lukowski
2010-03-11 13:04               ` Theodore Tso
2010-03-11 13:57                 ` Nikanth Karthikesan
2010-03-11 14:28                   ` Theodore Tso
2010-03-11 14:39                     ` James Bottomley
2010-03-11 15:05                       ` Nikanth Karthikesan
2010-03-11 15:25                         ` tytso
2010-03-11 16:26                           ` Gene Heskett
2010-03-11 16:26                             ` Gene Heskett
2010-03-11 16:34                           ` Greg Freemyer
2010-03-11 16:34                             ` Greg Freemyer
2010-03-12  1:09                             ` Tejun Heo
2010-03-11 14:48                     ` Mike Snitzer
2010-03-11 15:00                     ` Nikanth Karthikesan
2010-03-11 15:10                       ` Tejun Heo
2010-03-11 16:01                       ` Mike Snitzer
2010-03-11 18:26                         ` Christoph Hellwig
2010-03-11 16:33                   ` H. Peter Anvin
2010-03-08 15:18 ` Martin K. Petersen
2010-03-08 15:18   ` Martin K. Petersen
2010-03-08 18:29   ` H. Peter Anvin
2010-03-08 20:01     ` Martin K. Petersen [this message]
2010-03-08 20:01       ` Martin K. Petersen
2010-03-08 19:34   ` Mike Snitzer
2010-03-09  2:53     ` Tejun Heo
2010-03-09  3:20       ` Martin K. Petersen
2010-03-09  3:20         ` Martin K. Petersen
2010-03-09  6:53     ` Michael Tokarev
2010-03-09 10:01       ` Karel Zak
2010-03-09 10:16         ` Michael Tokarev
2010-03-09 11:15           ` Dave Chinner
2010-03-09 11:38             ` Michael Tokarev
2010-03-09 12:20               ` Dave Chinner
2010-03-09 11:50           ` Karel Zak
2010-03-09 12:18           ` Karel Zak
2010-03-10  5:06             ` Martin K. Petersen
2010-03-10 20:50               ` Henrique de Moraes Holschuh
2010-03-10  4:57       ` Martin K. Petersen
2010-03-10  4:57         ` Martin K. Petersen
2010-03-08 19:58   ` Karel Zak
2010-03-09  2:34     ` Tejun Heo
2010-03-09  2:42       ` Jeff Garzik
2010-03-09  2:49         ` Tejun Heo
2010-03-09  2:42       ` Tejun Heo
2010-03-09  3:11         ` Martin K. Petersen
2010-03-09  3:11           ` Martin K. Petersen
2010-03-09  3:09       ` Martin K. Petersen
2010-03-09  3:09         ` Martin K. Petersen
2010-03-09  3:38       ` Daniel Taylor
2010-03-09  3:38         ` Daniel Taylor
2010-03-09  4:54         ` Martin K. Petersen
2010-03-09  4:54           ` Martin K. Petersen
2010-03-09  3:41       ` Felix Miata
2010-03-09  7:27     ` Jim Meyering
2010-03-09  7:27       ` Jim Meyering
2010-03-09 23:56       ` Tejun Heo
2010-03-08 20:12   ` H. Peter Anvin
2010-03-09  2:22     ` Tejun Heo
2010-03-09  2:44   ` Tejun Heo
2010-03-09  3:18     ` Martin K. Petersen
2010-03-09  3:18       ` Martin K. Petersen
2010-03-09 14:32       ` Mark Lord
2010-03-09  6:34 ` Mikael Abrahamsson
2010-03-09 10:06   ` Michal Soltys
2010-03-10  0:11     ` Tejun Heo
2010-03-14 21:09       ` Michal Soltys
2010-03-14 22:56         ` s ponnusa
2010-03-09 13:55 ` Mark Lord
2010-03-10  0:00   ` Tejun Heo
2010-03-10  6:08     ` Mark Lord
2010-03-09 23:46 ` Arnd Bergmann
2010-03-10  0:20   ` Tejun Heo
2010-03-10  9:14   ` Denys Vlasenko
2010-03-10 11:02     ` Felix Miata
2010-03-15  1:21     ` H. Peter Anvin
2010-03-15  2:26       ` Denys Vlasenko
2010-03-15  2:56         ` Greg Freemyer
2010-03-15  4:00         ` H. Peter Anvin
2010-03-15 12:30           ` Arnd Bergmann
2010-03-15  5:20         ` david
2010-03-15  9:56           ` Denys Vlasenko
2010-03-15 14:47             ` H. Peter Anvin
2010-03-16  2:30     ` Tejun Heo
2010-03-16  2:32       ` Tejun Heo
2010-03-16  6:14       ` James Bottomley
2010-03-16  6:22         ` Tejun Heo
2010-03-16  6:37           ` Felix Miata
2010-03-16  6:42             ` Tejun Heo
2010-03-16 13:24           ` James Bottomley
2010-03-16 13:56             ` Tejun Heo
2010-03-16 14:21               ` James Bottomley
2010-03-16 14:25                 ` Arnd Bergmann
2010-03-16 14:50                 ` Tejun Heo
2010-03-16 15:02                   ` James Bottomley
2010-03-16 15:20                     ` Tejun Heo
2010-03-16 15:22                       ` Martin K. Petersen
2010-03-16 15:22                         ` Martin K. Petersen
2010-03-17  2:07                         ` Tejun Heo
2010-03-16 15:23                       ` James Bottomley
2010-03-16 15:37                         ` Tejun Heo
2010-03-16 20:42                           ` Ric Wheeler
2010-03-17  2:04                             ` Tejun Heo
2010-03-17  2:51                         ` Kevin Easton
2010-03-17  3:44                           ` Tejun Heo
2010-03-17  8:01                             ` jdow
2010-03-17 17:04                       ` Bill Davidsen
2010-03-16 14:38               ` Denys Vlasenko
2010-03-16 15:12                 ` Tejun Heo
2010-03-16 15:25                   ` Denys Vlasenko
2010-03-16 15:47                     ` Tejun Heo
2010-03-17  6:48             ` H. Peter Anvin
2010-03-16  6:27         ` Thomas Chou
  -- strict thread matches above, loose matches on Subject: below --
2010-03-12  3:10 H. Peter Anvin
2010-03-16 22:21 H. Peter Anvin
2010-03-17 15:08 ` Ric Wheeler
2010-03-17 17:13   ` H. Peter Anvin

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