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Date:	Sun, 5 Nov 2006 16:17:25 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Fabio Coatti <cova@...rara.linux.it>
Cc:	linux-kernel@...r.kernel.org, Alan Cox <alan@...rguk.ukuu.org.uk>,
	Jeff Garzik <jeff@...zik.org>, Tejun Heo <htejun@...il.com>
Subject: Re: SATA ICH5 not detected at boot, mm-kernels

On Sun, 5 Nov 2006 15:36:33 +0100
Fabio Coatti <cova@...rara.linux.it> wrote:

> Hi all; It seems that problems like this has been already reported, but not 
> exactly the same, so maybe thsi can add some infos. Otherwise, sorry for the 
> noise.
> 
> Starting from 2.6.19-rc1-mm1 and up to rc4-mm2, at boot the kernel is unable 
> to detect two sata disks, connected to a ICH5 controller. Latest mm working 
> kernel seems to be 2.6.18-mm3; 2.6.19-rc4 works just fine.
> 
> On rc-4 (vanilla) the log is this:
> Nov  5 13:26:37 kefk libata version 2.00 loaded.
> Nov  5 13:26:37 kefk ata_piix 0000:00:1f.2: version 2.00ac6
> Nov  5 13:26:37 kefk ata_piix 0000:00:1f.2: MAP [ P0 P1 IDE IDE ]
> Nov  5 13:26:37 kefk ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 18 (level, 
> low) -> IRQ 17
> Nov  5 13:26:37 kefk ata: 0x170 IDE port busy
> Nov  5 13:26:37 kefk ata: conflict with ide1

hm.  What does that mean?

> Nov  5 13:26:37 kefk PCI: Setting latency timer of device 0000:00:1f.2 to 64
> Nov  5 13:26:37 kefk ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xF000 
> irq 14
> Nov  5 13:26:37 kefk ata2: DUMMY
> Nov  5 13:26:37 kefk scsi1 : ata_piix
> Nov  5 13:26:37 kefk ata1.00: ATA-7, max UDMA/133, 488397168 sectors: LBA48 
> NCQ (depth 0/32)
> Nov  5 13:26:37 kefk ata1.00: ata1: dev 0 multi count 16
> Nov  5 13:26:37 kefk ata1.01: ATA-7, max UDMA/133, 586114704 sectors: LBA48 
> NCQ (depth 0/32)
> Nov  5 13:26:37 kefk ata1.01: ata1: dev 1 multi count 16
> Nov  5 13:26:37 kefk ata1.00: configured for UDMA/133
> Nov  5 13:26:37 kefk ata1.01: configured for UDMA/133
> 
> 
> With -mm kernels, I see only the third disk, but attached to a different 
> controller (output from rc4 vanilla):
> 
> Nov  5 13:26:37 kefk ACPI: PCI Interrupt 0000:03:03.0[A] -> GSI 19 (level, 
> low) -> IRQ 18
> Nov  5 13:26:37 kefk ata3: SATA max UDMA/100 cmd 0xF8804080 ctl 0xF880408A 
> bmdma 0xF8804000 irq 18
> Nov  5 13:26:37 kefk ata4: SATA max UDMA/100 cmd 0xF88040C0 ctl 0xF88040CA 
> bmdma 0xF8804008 irq 18
> Nov  5 13:26:37 kefk scsi3 : sata_sil
> Nov  5 13:26:37 kefk ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
> Nov  5 13:26:37 kefk ata3.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 
> NCQ (depth 0/32)
> Nov  5 13:26:37 kefk ata3.00: ata3: dev 0 multi count 0
> Nov  5 13:26:37 kefk ata3.00: configured for UDMA/100
> Nov  5 13:26:37 kefk scsi4 : sata_sil
> Nov  5 13:26:37 kefk ata4: SATA link down (SStatus 0 SControl 310)
> Nov  5 13:26:37 kefk scsi 3:0:0:0: Direct-Access     ATA      Maxtor 6V320F0   
> VA11 PQ: 0 ANSI: 5
> Nov  5 13:26:37 kefk SCSI device sdc: 625142448 512-byte hdwr sectors (320073 
> MB)
> Nov  5 13:26:37 kefk sdc: Write Protect is off
> 

And why doesn't -mm report the same conflict?  I assume the .config is the
same?

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