linux-kernel - Re: PROBLEM: (libata) cdrom drive not detected in -mm series

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Message-ID: <450664C7.3000105@gmail.com>
Date:	Tue, 12 Sep 2006 09:41:59 +0200
From:	Tejun Heo <htejun@...il.com>
To:	"Nelson A. de Oliveira" <naoliv@...il.com>
CC:	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>,
	Jeff Garzik <jgarzik@...ox.com>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
Subject: Re: PROBLEM: (libata) cdrom drive not detected in -mm series

Nelson A. de Oliveira wrote:
> Hi!
> 
> My USB CD-ROM drive (that is detected as a SCSI drive) is not being
> detected on the -mm series of the Kernel.

s/USB/SATA/, I presume.

[--snip--]
-ata2.00: ATAPI, max UDMA/33
-ata2.00: configured for UDMA/33
-  Vendor: HL-DT-ST  Model: CDRW/DVD GCC4244  Rev: B101
-  Type:   CD-ROM                             ANSI SCSI revision: 05

Argh... yet another PCS problem.  With whole -mm applied, does adding 
kernel parameter 'ata_piix.force_pcs=1' make any difference?

Please provide the following info.

* the result of 'lspci -nvvv'

* dmesg output with the attached patch applied (on top of -mm).

Thanks.

-- 
tejun

View attachment "patch" of type "text/plain" (738 bytes)