From: James Bottomley <James.Bottomley@SteelEye.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Paul Blazejowski <diffie@gmail.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Diffie <diffie@blazebox.homeip.net>
Subject: Re: Ho ho ho - Linux v2.6.10
Date: Sun, 26 Dec 2004 09:46:51 -0600 [thread overview]
Message-ID: <1104076011.5268.20.camel@mulgrave> (raw)
In-Reply-To: <Pine.LNX.4.58.0412252121370.2353@ppc970.osdl.org>
On Sat, 2004-12-25 at 21:27 -0800, Linus Torvalds wrote:
> As to what the "DV failed", it's apparently normal if DV is disabled,
> whatever the hell that is. James will know whether it's something to
> worry about..
DV is Domain Validation. It's a way of probing the SCSI bus to see what
type of transfer speeds and widths it can support. DV is part of the
mid-layer SPI transport class, which is where most drivers get it from.
However, this message is from the aic7xxx which does its own DV
separately from the mid-layer. As far as I can tell from the aic7xxx
code, it has a state machine model of DV and it prints this message if
it goes through an unexpected transition of that state machine, but I've
no idea from the message what actually happened. Everything seems to
proceed normally, since the device that caused the problems is later
configured at 160MB/s (the maximum the aic7xxx can do).
James
next prev parent reply other threads:[~2004-12-26 15:52 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-26 4:10 Ho ho ho - Linux v2.6.10 Paul Blazejowski
2004-12-26 5:27 ` Linus Torvalds
2004-12-26 15:46 ` James Bottomley [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-12-24 22:39 Linus Torvalds
2004-12-25 11:11 ` Andrew Walrond
2004-12-25 12:19 ` Alan Cox
2004-12-26 11:30 ` Wichert Akkerman
2004-12-26 13:45 ` R. J. Wysocki
2004-12-26 19:37 ` Pavel Machek
2004-12-26 19:39 ` Pavel Machek
2004-12-26 20:27 ` R. J. Wysocki
2004-12-26 22:10 ` Pavel Machek
2004-12-30 9:58 ` Rafael J. Wysocki
2004-12-26 15:45 ` Alan Cox
2004-12-29 12:44 ` Paolo Ciarrocchi
2004-12-26 2:55 ` Bill Davidsen
2004-12-26 3:36 ` Linus Torvalds
2004-12-26 4:19 ` Alexander E. Patrakov
2004-12-26 20:35 ` Greg Norris
2004-12-27 1:31 ` Dmitry Torokhov
2004-12-28 2:36 ` Greg Norris
2004-12-28 1:04 ` Håkan Lindqvist
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