Compiling a kernel problems

[Alex]

Hi,

I'm trying to compile a kernel with aacraid support for a dual Opteron
246 box with two 36GB disks on a Tyan S2891, using an initrd and lilo.

There is an older kernel on there that works just fine, so I suspect
it's something I'm missing in the kernel config. No matter what I try,
the kernel fails to find the disks on the controller. I've even tried
building it without an initrd and compiling everything into the
kernel, but it still panics.

I've included the aacraid support, SCSI disk, SCSI generic, and even
RAID1/5 support. The controller and motherboard also have the latest
BIOS updates.

What else is necessary to support aacraid? What are the minimum
settings required to provide support for this controller?

It prints the Adaptec aacraid basic info, but doesn't detect any disks
or even probe the controller.

Is I2O or ACPI support necessary?

Are there any boot-time options to increase debugging output to
troubleshoot this?

The dmesg output from a working system is here:

http://pastebin.com/0AnVBV7s

The kernel config for the attempt is here:

http://pastebin.com/gi9ybDwS

Thanks for any ideas.
Best regards,
Alex