From: "Manfred Spraul" <manfred@colorfullife.com>
To: <matthew@wil.cx>
Cc: <law@sgi.com>, <linux-kernel@vger.kernel.org>
Subject: Re: 64-bit block sizes on 32-bit systems
Date: Mon, 26 Mar 2001 20:01:21 +0200 [thread overview]
Message-ID: <009201c0b61e$c83f7550$5517fea9@local> (raw)
>> I vaguely remember a discussion about this a few months back.
>> If I remember, the reasoning was it would unnecessarily slow
>> down smaller systems that would never have block devices in
>> the 4-28T range attached.
>
>4k page size * 2GB = 8TB.
Try it.
If your drive (array) is larger than 512byte*4G (4TB) linux will eat
your data.
drivers/block/ll_rw_blk.c, in submit_bh()
> bh->b_rsector = bh->b_blocknr * (bh->b_size >> 9);
But it shouldn't cause data corruptions:
It was discussed a few months ago, and iirc LVM refuses to create too
large volumes.
--
Manfred
next reply other threads:[~2001-03-26 18:02 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-26 18:01 Manfred Spraul [this message]
2001-03-26 18:07 ` 64-bit block sizes on 32-bit systems Matthew Wilcox
2001-03-26 19:40 ` LA Walsh
2001-03-26 21:53 ` Manfred Spraul
2001-03-26 22:07 ` LA Walsh
-- strict thread matches above, loose matches on Subject: below --
2001-03-27 22:23 Jesse Pollard
2001-03-27 23:56 ` Steve Lord
2001-03-28 8:09 ` Brad Boyer
2001-03-28 14:53 ` Dave Kleikamp
2001-03-27 19:57 Jesse Pollard
2001-03-27 20:20 ` Jan Harkes
2001-03-27 21:55 ` LA Walsh
2001-03-27 19:30 Jesse Pollard
[not found] <Pine.LNX.4.30.0103270022500.21075-100000@age.cs.columbia.edu>
[not found] ` <3AC0CA9C.3D804361@sgi.com>
2001-03-27 19:00 ` Jan Harkes
2001-03-27 17:22 LA Walsh
2001-03-26 21:27 Jesse Pollard
2001-03-26 22:07 ` Jonathan Morton
2001-03-27 4:14 ` Jesse Pollard
2001-03-26 19:26 Jesse Pollard
2001-03-26 17:35 LA Walsh
2001-03-26 16:39 LA Walsh
2001-03-26 17:18 ` Matthew Wilcox
2001-03-26 17:47 ` Andreas Dilger
2001-03-26 18:09 ` Matthew Wilcox
2001-03-26 18:37 ` Eric W. Biederman
2001-03-26 19:36 ` Martin Dalecki
2001-03-26 23:03 ` AJ Lewis
2001-03-26 19:05 ` Scott Laird
2001-03-26 19:09 ` Andreas Dilger
2001-03-26 20:31 ` Dan Hollis
2001-03-26 19:20 ` Rik van Riel
2001-03-26 20:14 ` Jes Sorensen
2001-03-26 17:58 ` Eric W. Biederman
2001-03-28 8:06 ` Matthew Wilcox
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