2.5.9 IDE subsystem oops on scsi box

[Douglas Gilbert]

In lk 2.5.9 building a kernel with the ide subsystem and
ide-disk built in but no ATA disks oopses around mount
time (of the scsi disk) in the boot sequence.

This worked fine in lk 2.5.8 and lk 2.5.8-dj1 . Going into
the BIOS and disabling the on board IDE chipsets makes the
oops go away:
$ uname -a
Linux frig 2.5.9 #21 Mon Apr 22 20:51:46 EDT 2002 i686 unknown
$ df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda3              8499168   6437568   1629856  80% /
/dev/sda1                31079     16949     12526  58% /boot

Hand decoding the oops gave this stack backtrace:
  __ide_end_request
  ide_end_request
  ide_intr
  handle_IRQ
  do_IRQ
  default_idle

Doug Gilbert