From: "H. Peter Anvin" <hpa@zytor.com>
To: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Daniel Taylor <Daniel.Taylor@wdc.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] msdos: add support for large disks
Date: Thu, 04 Mar 2010 07:29:12 -0800 [thread overview]
Message-ID: <4B8FD1C8.6040203@zytor.com> (raw)
In-Reply-To: <871vg0zbqe.fsf@devron.myhome.or.jp>
On 03/04/2010 01:18 AM, OGAWA Hirofumi wrote:
> "Daniel Taylor"<Daniel.Taylor@wdc.com> writes:
>
>> It is only the intermediate variables in the module that are
>> currently hard-coded to 32-bits, and which truncate the values.
>
> BTW, it may not be only 32-bits truncate issue. IIRC, e.g. some
> implement is checking the 0xaa mark at the end of sector. I forgot
> almost though, IIRC, Windows writes 0xaa mark to the both of "end of
> sector" and "end of 512" for compatibility.
>
> Thanks.
The spec is that the mark, partition table etc. at the end of 512 bytes;
of course, a lot of people go that wrong.
-hpa
next prev parent reply other threads:[~2010-03-04 15:29 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
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 [this message]
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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