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 2/2] fs/partition/msdos: Fix unusable extended partition for > 512B sector
Date: Thu, 11 Mar 2010 13:58:19 -0800 [thread overview]
Message-ID: <4B99677B.80001@zytor.com> (raw)
In-Reply-To: <3E0C3AE547FA504DA5E89EA5A24AC85803E2BD8E@wdscexbe01.sc.wdc.com>
On 03/11/2010 01:25 PM, Daniel Taylor wrote:
>
> I have not yet tried booting from one of these disks.
>
> They are in USB-attached enclosures,
Right...
> attached well after boot, so the
> bootloader has never seen them.
Wrong. A lot of BIOSes will attempt to boot from USB storage. Worse, a
fair number of BIOSes will hang during startup if a USB storage device
that confuses them -- even if not the primary boot device.
> They simply refuse to mount to a running
> Linux system because, when the storage for partition size and start was
> expanded to 64-bit, no one bothered to fix the intermediate storage in
> msdos.c, so the kernel cannot locate the start nor figure the size of
> the partitions.
>
> Logically, this patch is not complicated. The data types in msdos.c
> are flat-out wrong, given that the real stored data is of type sector_t.
> The intermediate variables should not be u32.
I would consider this a bugfix. As such, it should be pushed outside
the merge window.
-hpa
next prev parent reply other threads:[~2010-03-11 21:58 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
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 [this message]
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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