I asked for a CC which is why I didn't see the reply until I looked in
Google groups and it is also why the thread will now be broken as I had
to cut and paste the reply as a new message.  Please CC me any replies.

Jens Axboe wrote:
>On Wed, Feb 04 2004, Antony Gelberg wrote:
>> Hi all,
>> 
>> I'd appreciate a CC as I'm not subbed.
>> 
>> I'm running 2.6.0 from the Debian source packages.  All is good,
>> except
>> my CDROM drives don't work.  Here's some relevant output from
>> /var/log/dmesg:
>> 
>> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
>> ide: Assuming 33MHz system bus speed for PIO modes; override with
>> idebus=xx
>> VP_IDE: IDE controller at PCI slot 0000:00:11.1
>> ACPI: No IRQ known for interrupt pin A of device 0000:00:11.1 - using
>> IRQ 255
>> VP_IDE: chipset revision 6
>> VP_IDE: not 100% native mode: will probe irqs later
>> ide: Assuming 33MHz system bus speed for PIO modes; override with
>> idebus=xx
>> VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1
>>     ide0: BM-DMA at 0x8800-0x8807, BIOS settings: hda:pio, hdb:pio
>>     ide1: BM-DMA at 0x8808-0x880f, BIOS settings: hdc:DMA, hdd:pio
>> hdc: 54X CD-ROM, ATAPI CD/DVD-ROM drive
>> ide1 at 0x170-0x177,0x376 on irq 15
>> end_request: I/O error, dev hdc, sector 0
>> hdc: ATAPI 52X CD-ROM drive, 128kB Cache, UDMA(33)
>> Uniform CD-ROM driver Revision: 3.12
>> libata version 0.81 loaded.
>> sata_promise version 0.86
>> ata1: SATA max UDMA/133 cmd 0xE0824200 ctl 0xE0824238 bmdma 0x0 irq 17
>> ata2: SATA max UDMA/133 cmd 0xE0824280 ctl 0xE08242B8 bmdma 0x0 irq 17
>> 
>> Now lspci:
>> 00:11.1 IDE interface: VIA Technologies, Inc.
>> VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev
>> 06)
>> 
>> Can anyone shed any light on this?  I've tried a different IDE cable.
>> I
>> disconnected the other drive that was the slave, but no dice.  hdc and
>> hdd both reported the I/O error when they were both connected.  The
>> system doesn't recognise data or audio discs.
>
>Maybe if you would let us know what doesn't work?! At least post the
>full boot messages and make sure you aren't doing anything like passing
>hdc/d=ide-scsi through lile/grub.

Sorry, I thought it was obvious.  I'll requote:

>> The system doesn't recognise data or audio discs.

What I meant was that mounting fails with "no such device", and playing
audio CD's fails as well.  No error, just no recognition of the CD.

>> end_request: I/O error, dev hdc, sector 0

I think that this is the problem, but I don't know what it means.  I
don't think posting the rest of my bootlog is patricularly helpful, but
please let me know if it is.  I am not passing any parameters to lilo.

I have attached my kernel config in the hope that the list doesn't strip
all attachments.

A