From: jmk@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] WD hard disk not available in partdisk
Date: Fri, 5 Jul 2002 17:33:17 -0400 [thread overview]
Message-ID: <daf846be131f8634f5b332b184f9b549@plan9.bell-labs.com> (raw)
John DeGood <nu3e@yahoo.com>:
Based on reading the ATA-1 and ATA-2 specs
(http://www.t13.org/project/d0791r4c.pdf and
http://www.t13.org/project/d0948r4c.pdf) I agree that the if statement clauses
in sdata.c appear to be reversed.
FWIW, the ATA-6 draft (http://www.t13.org/project/d1410r3a.pdf) declares:
----
8.15.26 Word 53: Field validity
Bit 0 of word 53 is obsolete.
...
8.15.27 Word (58:54): Obsolete
----
Does this suggest that this code in sdata.c may cause problems in the future if
it continues to always assume that the content of bit 0 of word 53 is valid?
Most likely this will eventually be a problem.
> I've tested this on a WD AC2120 (125MB, my disc is smaller than your disc).
I'd try my ST225 (21.4 MB), but I don't think its controller is supported. :-)
John
My 40MB Conner CP3000 seems to work with the changes too.
next reply other threads:[~2002-07-05 21:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-05 21:33 jmk [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-07-05 15:20 jmk
2002-07-05 19:57 ` John DeGood
2002-07-04 17:43 [9fans] rtl8139 troubles and 2 questions forsyth
2002-07-04 19:41 ` FJ Ballesteros
2002-07-04 20:52 ` [9fans] WD hard disk not available in partdisk John DeGood
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