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Bug#314707: UDMA3/4/5 not working with Centrino Chipset, 82801DBM (ICH4-M) IDE Controller (rev 03)

hello erik,

thanks for your quick feedback.

On Mon, 06 Aug 2007, Erik Schanze wrote:
> maximilian attems <max@stro.at>:
> > is the matter fixed in etch?
> >
> I don't know.
> I run unstable and the problem still exists.

ok can you please test latest 2.6.23-rc2
see trunk apt lines
-> http://wiki.debian.org/DebianKernel
> dmesg:
> ...
> ICH4: chipset revision 3
> ICH4: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0x1100-0x1107, BIOS settings: hda:DMA, hdb:pio
>     ide1: BM-DMA at 0x1108-0x110f, BIOS settings: hdc:DMA, hdd:pio
> Probing IDE interface ide0...
> usb 3-3: new high speed USB device using ehci_hcd and address 2
> usb 3-3: configuration #1 chosen from 1 choice
> hda: TOSHIBA MK6021GAS, ATA DISK drive
> SCSI subsystem initialized
> Initializing USB Mass Storage driver...
> scsi0 : SCSI emulation for USB Mass Storage devices
> usb-storage: device found at 2
> usb-storage: waiting for device to settle before scanning
> usbcore: registered new interface driver usb-storage
> USB Mass Storage support registered.
> hda: host side 80-wire cable detection failed, limiting max speed to 
> UDMA33
> hda: selected mode 0x42
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> Probing IDE interface ide1...
> ieee1394: Host added: ID:BUS[0-00:1023]  GUID[00023f41440053ff]
> Clocksource tsc unstable (delta = -223793410 ns)
> hdc: Slimtype COMBO LSC-24082K, ATAPI CD/DVD-ROM drive
> hdc: selected mode 0x42
> ide1 at 0x170-0x177,0x376 on irq 15
> ACPI: PCI Interrupt 0000:00:1d.2[C] -> Link [LNKC] -> GSI 10 (level, 
> low) -> IRQ 10
> PCI: Setting latency timer of device 0000:00:1d.2 to 64
> uhci_hcd 0000:00:1d.2: UHCI Host Controller
> uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
> uhci_hcd 0000:00:1d.2: irq 10, io base 0x00001700
> usb usb4: configuration #1 chosen from 1 choice
> hub 4-0:1.0: USB hub found
> hda: max request size: 128KiB
> hub 4-0:1.0: 2 ports detected
> hda: 117210240 sectors (60011 MB), CHS=65535/16/63, UDMA(33)
> hda: cache flushes supported
>  hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 >
> hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
> Uniform CD-ROM driver Revision: 3.20
> ...
> I doubt that there is no 80 wire cable in my notebook (Acer Travelmate 
> 291),but I didn't open it.
> Perhaps the detection works not correctly? 

i see.
> Currently I use a self compiled kernel with modified source code
> (piix_cable_detect() in /usr/src/linux/drivers/ide/pci/piix.c)
> to skip cable detection and UDMA100 works very well.

hmm looks like, as ide maintainers are currently busyli working
it might be a good timing :)

please if aboves kernel has the same failure file the bugreport
on bugzilla.kernel.org against ide and inform us of the 
bugzilla bug nr. tejun and ac should take care of it.
best regards


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