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From: "H. Peter Anvin" <hpa@zytor.com>
To: Daniel Taylor <Daniel.Taylor@wdc.com>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] msdos: add support for large disks
Date: Wed, 03 Mar 2010 15:05:17 -0800	[thread overview]
Message-ID: <4B8EEB2D.4090106@zytor.com> (raw)
In-Reply-To: <3E0C3AE547FA504DA5E89EA5A24AC85803E2BD53@wdscexbe01.sc.wdc.com>

On 03/03/2010 02:50 PM, Daniel Taylor wrote:
> 
> The drives report physical/logical sector sizes of 4096 bytes, which the
> kernel correctly detects.  32-bit fields in the MBR are then sufficient for
> storage capacites >2TiB (up to 16 TiB), and the storage in struct
> parsed_partitions is already sector_t.
> 

It's probably worth noting that such media:

a) will not work with anything that is based on disk images;
b) will not be bootable on most existing systems.

Both of these are going to be issues for people in real-life use (and
yes, people boot from USB disks -- trust me, when it doesn't work they
send the bug reports to *me* rather than to the hw/bios vendors.)  Of
course, so is XP compatibility.

	-hpa

  reply	other threads:[~2010-03-03 23:05 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-25  3:17 [PATCH] msdos: add support for large disks Daniel Taylor
2010-03-01 22:13 ` Andrew Morton
2010-03-03 14:02   ` OGAWA Hirofumi
2010-03-03 22:50     ` Daniel Taylor
2010-03-03 23:05       ` H. Peter Anvin [this message]
2010-03-03 23:24         ` Daniel Taylor
2010-03-04  0:17           ` H. Peter Anvin
2010-03-04  9:18           ` OGAWA Hirofumi
2010-03-04 15:29             ` H. Peter Anvin
2010-03-07 10:59     ` OGAWA Hirofumi
2010-03-07 23:03       ` H. Peter Anvin
2010-03-08  0:09         ` OGAWA Hirofumi
2010-03-08  0:12           ` H. Peter Anvin
2010-03-08  9:36             ` OGAWA Hirofumi
2010-03-10 15:48               ` [PATCH 1/2] fs/partitions/msdos: " OGAWA Hirofumi
2010-03-10 15:51                 ` [PATCH 2/2] fs/partition/msdos: Fix unusable extended partition for > 512B sector OGAWA Hirofumi
2010-03-10 23:16                   ` Daniel Taylor
2010-03-11 11:57                     ` OGAWA Hirofumi
2010-03-11 21:25                       ` Daniel Taylor
2010-03-11 21:58                         ` H. Peter Anvin
2010-03-11 22:06                           ` Daniel Taylor
2010-03-11 22:09                             ` H. Peter Anvin
2010-03-12 23:44                               ` Andrew Morton
2010-03-11 22:17                         ` OGAWA Hirofumi
2010-03-11 22:27                           ` H. Peter Anvin
2010-03-11 22:40                             ` OGAWA Hirofumi
2010-03-10 23:12                 ` [PATCH 1/2] fs/partitions/msdos: add support for large disks Daniel Taylor

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