[Linux-ia64] IRQ problems when running McKinley Kernel on Proliant DL590/64

[Stephen Mulcahy <stephen.mulcahy@hp.com>]

Hi,

I've been experiencing some problems with some ia64 kernels (both ones
I've gotten in debian and those I've compiled myself) on a Compaq
Proliant DL590/64 which I've been doing some test installing on.

The problem manifests itself with the following error output on
boot-up

PIIX4: IDE controller on PCI bus 00 dev 39
PCI: Found IRQ 0 for device 00:07.1
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x1000-0x1007, BIOS settings: hda:pio, hdb:pio
hda: IRQ probe failed (0x7ffffffe)
keyboard: Timeout - AT keyboard not present?(ed)
hda: IRQ probe failed (0x7ffffffe)
hda: CD-224E, ATAPI CD/DVD-ROM drive
hda: IRQ probe failed (0x7ffffffe)
hdb: IRQ probe failed (0x7ffffffe)
hdb: IRQ probe failed (0x7ffffffe)
hdb: LS-120 SLIM6 AG UHD Floppy, ATAPI FLOPPY drive
hdb: IRQ probe failed (0x7ffffffe)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 34
hda: lost interrupt
hda: lost interrupt
hda: ATAPI 24X CD-ROM drive, 128kB Cache
Uniform CD-ROM driver Revision: 3.12
ide-floppy driver 0.97.sv
hdb: lost interrupt
hdb: lost interrupt

I've tried various kernel configurations with a view to isolating this
problem, initially assuming it to be the same problem seen with
some omnibooks where PIIXn autotuning caused lost interrupt
problems due to various errors in drivers. After compiling a number of
kernels, the error only occurs on the system if I compile a kernel for
Itanium-2/McKinley rather than Itanium i.e. I can compile an Itanium
kernel with generic pci bus-master support etc. and don't experience
any of these problems so I assume there are some changes in the
mckinley support which cause or reveal problems in the ide irq
handling stuff.

Sorry for the lack of technical depth on this, I'm not sure what
additional information may of be of use to people in resolving
this. I'll concentrate on compiling kernels for Itanium rather than
McKinley for now (the current debian woody images for ia64 default to
using the mckinley kernel, I'll drop them a note suggesting they may
wish to default to itanium to avoid this problem).

I've seen this on the linux 2.4.17 mckinley smp kernel as distributed
by debian and a number of linux 2.4.18 kernels (with the
latest ia64 patch kit) compiled by myself. I can provide further error
output and kernel config files if they're of use to anyone.

Thanks,

-stephen

-- 
   Stephen Mulcahy, Software Engineer, A&O - Multivendor Systems Engineering, 
 HP Services, Hewlett-Packard Company, Ballybrit Business Park, Galway, Ireland