linux-kernel - Regression? 2.6.23.16 -> 2.6.32.9: ide/libata HD recognition

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Date:	Wed, 10 Mar 2010 15:16:15 +1100
From:	CaT <cat@....com.au>
To:	linux-kernel@...r.kernel.org
Subject: Regression? 2.6.23.16 -> 2.6.32.9: ide/libata HD recognition

Hi,

Just had a strange situation with the above upgrade. It was done on an
old server that used the serverworks ide driver. The IDE hw config under
2.6.23.16 was:

hda:	HD
hdb:	CDROM
hdc:	empty
hdd:	HD

After upgrade, using either IDE or libata the config changed to:

hda:	HD
hdb:	CDROM
hdc:	empty
hdd:	empty

The BIOS recognised the disk. I went through 3 disks and it wasn't until
I made the second HD a master that it was recognised. So now I have a
2.6.32.9 server, using the IDE subsystem with the following config:

hda:	HD
hdb:	CDROM
hdc:	HD
hdd:	empty

Otherwise it does not work.

I had an outage window that I already blew so I was not able to do
any more diagnosis than what it took to get the system up.

If anyone wants the full config I'll send. Otherwise:

IDE subsystem (no libata subsystem configured):

CONFIG_HAVE_IDE=y
CONFIG_IDE=y
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
CONFIG_BLK_DEV_IDEACPI=y
CONFIG_IDE_PROC_FS=y
CONFIG_BLK_DEV_IDEDMA_SFF=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_LEDS_TRIGGER_IDE_DISK=y

libata kernel (no IDE subsystem configured):

CONFIG_ATA=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
CONFIG_SATA_PMP=y
CONFIG_ATA_SFF=y
CONFIG_PATA_SERVERWORKS=y

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