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Date: Fri, 20 Jul 2007 16:02:01 +0200
From: Gabriel C <nix.or.die@googlemail.com>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: Felipe Contreras <felipe.contreras@gmail.com>,
       lkml <linux-kernel@vger.kernel.org>, Jeff Garzik <jeff@garzik.org>
Subject: Re: ata_piix broken in 2.6.22
References: <94a0d4530707200626r2b50146bs55e268033ceab4b0@mail.gmail.com> <20070720143510.6ce81c09@the-village.bc.nu>
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Alan Cox wrote:
> O> ata_piix 0000:00:1f.2: version 2.11
>> ata_piix 0000:00:1f.2: MAP [ P0 P2 IDE IDE ]
>> ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 16 (level, low) -> IRQ 16
>> ata_piix 0000:00:1f.2: 0x1F0 IDE port busy
>> ata_piix 0000:00:1f.2: 0x170 IDE port busy
>> ata_piix 0000:00:1f.2: no available legacy port
> 
> You appear to have old IDE compiled in as well and finding the device
> first

Alan ,

But this is allowed now and for me, after removing CONFIG_SATA_INTEL_COMBINED option
some other options combos may be illegal and removing it broke a lot working setups.

On <2.6.22 you got on your SATA/PATA controller with CONFIG_IDE=y , ATA=y ( ATA_X=y and even BLK_DEV_X=y) the

SATA disk as SATA and PATA one as IDE now you get the SATA disk as 'IDE' too which gives you almost 3-4MB/s speed.

Is such a config legall for you for an SATA/IDE combo controller in >=2.6.22 ?

CONFIG_BLK_DEV_IDE_SATA=n
CONFIG_IDE=y
ATA=y
BLK_DEV_PIIX=y(or m doesn't matter )
ATA_PIIX=y

IMO after removing CONFIG_SATA_INTEL_COMBINED you guys introduced an real conflict with the IDE subsystem.

The only way to get libata working with such a config is to boot ideX=noprobe.


Regards,

Gabriel