From mboxrd@z Thu Jan  1 00:00:00 1970
From: Robert Hancock <hancockrwd@gmail.com>
Subject: Re: ata2.00: failed to set xfermode (err_mask=0x100),ata2.00: disabled,
 CD-ROM drive dead
Date: Mon, 15 Mar 2010 17:44:58 -0600
Message-ID: <4B9EC67A.3020201@gmail.com>
References: <4B9EA02F.2070704@hardwarefreak.com>
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To: Stan Hoeppner <stan@hardwarefreak.com>
Cc: linux-ide@vger.kernel.org

On 03/15/2010 03:01 PM, Stan Hoeppner wrote:
> dmesg:
> ata2.00: failed to set xfermode (err_mask=0x100)
> ata2.00: disabled

Can you post the full dmesg output from bootup?

>
> hardware:
> WD 500GB SATA on PCI Sil 3512 card (boot device)
> Pioneer CD-ROM on PIIX4
>
> kernel.org vanilla sources
> 2.6.31.1
> 2.6.32.9
>
> Upon upgrading to 2.6.32.9 my CD-ROM is now dead.
>
> With 2.6.31.1 I was using the libata driver along with the old style IDE
> driver PIIX4 and both the HD and CD-ROM worked fine.
>
> When I rolled the new 2.6.32.9 kernel, I decided to go all libata, thus
> removing all the old IDE stuff in make menuconfig, and adding the PIIX4
> support in the libata section along with SCSI CD-ROM support in the SCSI
> section, per instructions I'd found.
>
> Relevant .config snippets:
> # Protocols
> CONFIG_BLK_DEV=y
> CONFIG_BLK_DEV_FD=y
> CONFIG_HAVE_IDE=y
> # CONFIG_IDE is not set
>
> # SCSI device support
> CONFIG_SCSI=y
> CONFIG_SCSI_DMA=y
> CONFIG_SCSI_PROC_FS=y
>
> # SCSI support type (disk, tape, CD-ROM)
> CONFIG_BLK_DEV_SD=y
> CONFIG_BLK_DEV_SR=y
> CONFIG_SCSI_WAIT_SCAN=m
>
> # SCSI Transports
> CONFIG_ATA=y
> CONFIG_ATA_VERBOSE_ERROR=y
> CONFIG_ATA_SFF=y
> CONFIG_ATA_PIIX=y
> CONFIG_SATA_SIL=y
>
> I always roll my drivers into the kernel.  It's just my preference, so let's
> please not debate the merits of kernel modules in this thread.  I only
> mention it as menuconfig for some odd reason doesn't give me the option to
> roll CONFIG_SCSI_WAIT_SCAN into the kernel, but insists on making it a
> module.  The one exception to this, apparently, is if I completely disable
> module support, in which case it rolls it into the kernel.  It would be nice
> if menuconfig gave an option to force it into the kernel even if module
> support is enabled.  Seems silly to have all the SCSI stuff built into the
> kernel except this one thing.  I don't think this is related to the current
> problem, but I mention it just in case.  I'm not sure if the module is
> actually loading.   This probably is not the right name to give modprobe but
> I don't know what it would be:
>
> ~$ modprobe CONFIG_SCSI_WAIT_SCAN
> FATAL: Module CONFIG_SCSI_WAIT_SCAN not found.
>
> Anyway, should I roll another 2.6.32.9 reverting back to the dual IDE/libata
> driver setup to get the CD-ROM working again, or is there some neat trick
> you fine folks can share that will force libata to start playing nice with
> PIIX4 and the CD-ROM?
>
> Thanks.
>