From: Richard Hughes <ee21rh@surrey.ac.uk>
To: linux-kernel@vger.kernel.org
Subject: Re: Linux hangs during IDE initialization at boot for 30 sec
Date: Wed, 2 Feb 2005 12:46:27 +0000 (UTC) [thread overview]
Message-ID: <loom.20050202T134427-571@post.gmane.org> (raw)
In-Reply-To: <1107299901.5624.28.camel@gaston>
Benjamin Herrenschmidt <benh <at> kernel.crashing.org> writes:
> This looks like bogus HW, or bogus list of IDE interfaces ...
How can I test to see if this is the case?
>
> The IDE layer waits up to 30 seconds for a device to drop it's busy bit,
> which is necessary for some drives that aren't fully initialized yet.
Sure, make sense.
> I suspect in your case, it's reading "ff", which indicates either that
> there is no hardware where the kernel tries to probe, or that there is
> bogus IDE interfaces which don't properly have the D7 line pulled low so
> that BUSY appears not set in absence of a drive.
Right. How do I find the value of D7?
> I'm not sure how the list of intefaces is probed on this machine, that's
> probably where the problem is.
Thanks, Richard Hughes
next prev parent reply other threads:[~2005-02-02 12:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-01 11:57 Michael Brade
2005-02-01 20:22 ` Richard Hughes
2005-02-01 23:18 ` Benjamin Herrenschmidt
2005-02-02 12:46 ` Richard Hughes [this message]
2005-02-02 12:52 ` Con Kolivas
2005-02-02 14:20 ` Richard Hughes
2005-02-03 10:03 ` Alan Cox
2005-02-02 18:48 Aleksey Gorelov
2005-02-02 20:01 Aleksey Gorelov
2005-02-02 22:16 ` Michael Brade
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