From: Christoph Hellwig <hch@infradead.org>
To: Daniel Taylor <Daniel.Taylor@wdc.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 4K disk block and disks larger than 2TiB bugs
Date: Wed, 17 Feb 2010 04:25:45 -0500 [thread overview]
Message-ID: <20100217092545.GA16508@infradead.org> (raw)
In-Reply-To: <3E0C3AE547FA504DA5E89EA5A24AC85803E2BD0A@wdscexbe01.sc.wdc.com>
On Tue, Feb 16, 2010 at 08:14:27PM -0800, Daniel Taylor wrote:
> The larger problem is for EFI. There is a significant amount of hard-coded
> assumption that LBAs are 512 bytes. It would help if I could work with the
> designer to make (and test) the changes in a way that abstracts away the
> size (I do know that the kernel always thinks of disks in units of 512-byte
> blocks). I have seen attempts in the past to fix this problem, but the
> patches
> were rejected with erroneous comments about fixing it in user space. If the
> kernel will not recognise the partitions, or assigns incorrect values to the
> starting block and/or number of blocks, there is nothing that user space can
> do with the disk, except notice the EINVAL responses.
This should be fixed since commit 7d13af3279985f554784a45cc961f706dbcdbdd1,
which is included in Linux 2.6.32.
prev parent reply other threads:[~2010-02-17 9:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-17 4:14 Daniel Taylor
2010-02-17 9:25 ` Christoph Hellwig [this message]
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