linux-kernel - Re: [Bug #14622] Second IDE device not found

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Date:	Thu, 19 Nov 2009 12:05:50 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	rjw@...k.pl
Cc:	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org,
	zdavatz@...il.com, linux-ide@...r.kernel.org
Subject: Re: [Bug #14622] Second IDE device not found

From: "Rafael J. Wysocki" <rjw@...k.pl>
Date: Mon, 16 Nov 2009 23:37:47 +0100 (CET)

> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.31.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14622
> Subject		: Second IDE device not found
> Submitter	: Zeno Davatz <zdavatz@...il.com>
> Date		: 2009-11-11 17:31 (6 days old)
> References	: http://marc.info/?l=linux-kernel&m=125796105822353&w=4

We're going to need more information to diagnose this.

And linux-ide should have been at least CC:'d from the very
beginning.

>From what I can discern the problem is introduced somewhere between
2.6.27 and 2.6.31, you have a Serverworks CSB5 and primarily the issue
is that attaching or detaching your CD-ROM driver influences whether
both of your disks are properly detected.  Correct?

You seem to have played around with using the IDE layer vs. the
ATA layer.  Can you see any difference in behavior if you try
using just the IDE layer vs. just the ATA layer with the 2.6.31
kernel?

Thanks.
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