Thoshiba Tecra 8000 with 3com 3CXFE575CT

[M. Warner Losh]

Please try this patch.  I think we've had a minor regression in our
PCI BIOS routed interrupts.  Also, please try w/o ACPI enabled to see
if that changes things.  With acpi enabled, I'm not sure this patch
will do anything for you.  If it does with acpi disabled, it gives a
real strong clue what to look for in the acpi code.  We used to always
route the interrupt, even when the bios said it had one, now it looks
like we do that less agressively.

Warner

Index: pci_pir.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/pci/pci_pir.c,v
retrieving revision 1.119
diff -u -r1.119 pci_pir.c
--- pci_pir.c	8 Sep 2005 17:07:12 -0000	1.119
+++ pci_pir.c	15 Oct 2005 18:51:07 -0000
@@ -348,6 +348,9 @@
 			    irq, entry->pe_bus, entry->pe_device, pin + 'A',
 			    pci_link->pl_id);
 		pci_link->pl_irq = irq;
+		if (!pci_link->pl_routed)
+		    pci_pir_biosroute(entry->pe_bus, entry->pe_device, 0,
+		      pin - 1, pci_link->pl_irq);
 		pci_link->pl_routed = 1;
 		return;
 	}