The following reply was made to PR kern/36727; it has been noted by GNATS.

From: Martin Husemann <martin@duskware.de>
To: Ian McIntosh <ianm@cat.co.za>
Cc: gnats-bugs@NetBSD.org
Subject: Re: kern/36727: lkms that work with Single processor kernel do not work with muli-processor kernel
Date: Fri, 3 Aug 2007 17:17:05 +0200

 On Fri, Aug 03, 2007 at 05:13:50PM +0200, Ian McIntosh wrote:
 > Not sure what you mean by 'UP kernel', could you please explain that. I 
 > did compile a GENERIC kernel with
 > ioapic* at mainbus?
 > options MPBIOS
 > options MPBIOS_SCANPCI
 
 That is what I meant (UP = uniprocessor, i.e. not having options MULTIPROCESSOR)
 
 > This did not work at all. To me it looks like the lkm is ignoring the 
 > ioapic somehow.
 
 So there we are: the problem is not a MULTIPROCESSOR kernel vs. a uniprocessor
 one, but interrupts via ioapic not working.
 
 I would have expected something like:
 > uhci1: interrupting at ioapic0 pin 17 (irq 10)
 > uhci2: interrupting at ioapic0 pin 18 (irq 10)
 
 for your module too, but it just fails:
 
 > mov0 at pci3
 > pci_intr_map: bus 1 dev 0 func 0 pin 1; line 10
 > pci_intr_map: no MP mapping found
 > failed to allocate interrupt slot for PIC pic0 pin 10
 > : couldn't establish interrupt at irq 10
 
 "PIC pic0" sounds wrong here - it should be ioapic0.
 
 Martin