From: Vojtech Pavlik <vojtech@suse.cz>
To: Martin Dalecki <dalecki@evision-ventures.com>
Cc: "Gryaznova E." <grev@namesys.botik.ru>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Reiserfs developers mail-list <Reiserfs-Dev@namesys.com>
Subject: Re: IDE problem: linux-2.5.17
Date: Fri, 24 May 2002 00:42:58 +0200 [thread overview]
Message-ID: <20020524004258.D27005@ucw.cz> (raw)
In-Reply-To: <3CECF59B.D471F505@namesys.botik.ru> <3CECFA15.8040707@evision-ventures.com> <3CED2B73.ABA3C95F@namesys.botik.ru> <3CED2FE0.2050903@evision-ventures.com>
On Thu, May 23, 2002 at 08:07:28PM +0200, Martin Dalecki wrote:
> > I have 40 wires cable. When ide=nodma is passed to 2.5.17 kernel - kernel boots.
> > Am I correct that it is not possible to have DMA on with such cable?
> > Is there any reason for doing that?
> >
> > Note that bus speed is 33 MHz when kernel fails to boot.
> > I mean - how do I specify slower bus speed: 22 MHz?
>
> You know what? I don't answer you directly I will just put a note
> about this in to Documentation/ide.txt which is long overdue anyway :-).
> You should better don't do UDMA>>66 with 40 write cablings. That's all.
The kernel shouldn't select that automatically. If it does, it's a bug.
As for manual setting, it should emit a warning.
--
Vojtech Pavlik
SuSE Labs
next prev parent reply other threads:[~2002-05-23 22:43 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-23 13:58 IDE problem: linux-2.5.17 Gryaznova E.
2002-05-23 14:17 ` Martin Dalecki
2002-05-23 17:48 ` Gryaznova E.
2002-05-23 18:03 ` Tomas Szepe
2002-05-23 18:44 ` Andre Hedrick
2002-05-23 17:49 ` Martin Dalecki
2002-05-23 19:11 ` Andre Hedrick
2002-05-23 19:13 ` Andre Hedrick
2002-05-24 15:05 ` Alan Cox
2002-05-23 22:40 ` Vojtech Pavlik
2002-05-23 18:07 ` Martin Dalecki
2002-05-23 22:42 ` Vojtech Pavlik [this message]
2002-05-23 22:37 ` Vojtech Pavlik
2002-05-23 14:27 ` Martin Dalecki
2002-05-23 15:39 ` [reiserfs-dev] " Oleg Drokin
2002-05-23 14:44 ` Martin Dalecki
2002-05-23 16:00 ` Oleg Drokin
2002-05-23 22:52 ` Vojtech Pavlik
2002-05-23 21:47 ` Lionel Bouton
2002-05-23 22:55 ` Vojtech Pavlik
2002-05-24 0:23 ` Lionel Bouton
2002-05-24 1:04 ` Andre Hedrick
2002-05-24 5:56 ` Vojtech Pavlik
2002-05-24 8:53 ` Lionel Bouton
2002-05-24 4:53 ` Oleg Drokin
2002-05-23 22:50 ` Vojtech Pavlik
2002-05-24 11:03 ` Martin Dalecki
2002-05-24 13:15 ` Vojtech Pavlik
2002-05-24 12:15 ` Martin Dalecki
2002-05-24 13:20 ` Vojtech Pavlik
2002-05-24 13:40 ` Martin Dalecki
2002-05-24 14:54 ` Vojtech Pavlik
2002-05-23 15:52 ` Tomas Szepe
2002-05-23 16:02 ` Oleg Drokin
2002-05-23 22:45 ` Vojtech Pavlik
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