From: Anders Henke <anders.henke@sysiphus.de>
To: Andries.Brouwer@cwi.nl
Cc: linux-kernel@vger.kernel.org, marcelo@conectiva.com.br
Subject: Re: using 2 TB in real life
Date: Fri, 13 Dec 2002 15:43:17 +0100 [thread overview]
Message-ID: <20021213144317.GA21991@schlund.de> (raw)
In-Reply-To: <UTC200212122315.gBCNFdp22965.aeb@smtp.cwi.nl>
On December 13th 2002, Andries.Brouwer@cwi.nl wrote:
> > SCSI device sdb: -320126976 512-byte hdwr sectors (-163904 MB)
>
> Yes, the code in 2.4.20 works up to 30 bits.
> A slight modification works up to 31 bits.
It works up to less than 30 bits - a 0.9 TB Device shows up as
SCSI device sdb: 1806745600 512-byte hdwr sectors (-174457 MB)
while a 480 GB Device (correctly) shows up this way:
SCSI device sda: 961818624 512-byte hdwr sectors (492451 MB)
At 0.5 TB (29 bits) the first problem occurs: negative size.
At 1 T (30 bits), the sector count also becomes negative.
Your patch (thank you!) does fix both problems and up to 1.9 TB,
everything works as expected:
SCSI device sdb: 3974840320 512-byte hdwr sectors (2035118 MB)
Yes, it's purely cosmetical, but should be included in the main tree.
Regards,
Anders
--
http://sysiphus.de
next prev parent reply other threads:[~2002-12-13 14:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-12 23:15 using 2 TB in real life Andries.Brouwer
2002-12-13 14:43 ` Anders Henke [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-12-12 11:12 Anders Henke
2002-12-12 12:03 ` Mike Black
2002-12-12 17:22 ` Bryan O'Sullivan
2002-12-12 17:48 ` Anders Henke
2002-12-12 19:03 ` Bryan O'Sullivan
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