diff -Napur -X /home/jbarnes/dontdiff linux-2.6.9-rc2-mm1.orig/arch/ia64/pci/pci.c linux-2.6.9-rc2-mm1/arch/ia64/pci/pci.c
--- linux-2.6.9-rc2-mm1.orig/arch/ia64/pci/pci.c	2004-09-16 09:35:49.000000000 -0700
+++ linux-2.6.9-rc2-mm1/arch/ia64/pci/pci.c	2004-09-16 10:00:24.000000000 -0700
@@ -445,7 +445,7 @@ pcibios_enable_device (struct pci_dev *d
 	if (ret < 0)
 		return ret;
 
-	return acpi_pci_irq_enable(dev);
+	return ia64_platform_is("sn2") ? 0 : acpi_pci_irq_enable(dev);
 }
 
 void