--- //depot/yahoo/ybsd_9/src/sys/dev/acpica/acpi_pcib.c 2011-11-02 23:46:55.000000000 0000
+++ /home/seanbru/ybsd_9/sys/dev/acpica/acpi_pcib.c     2011-11-02 23:46:55.000000000 0000
@@ -74,8 +74,10 @@
     char *prtptr;
 
     /* First check to see if there is a table to walk. */
-    if (prt == NULL || prt->Pointer == NULL)
-       return;
+    if (prt == NULL || prt->Pointer == NULL) {
+                       printf("%s found NULL prt\n",__func__);
+                       return;
+               }
 
     /* Walk the table executing the handler function for each entry. */
     prtptr = prt->Pointer;
@@ -139,8 +141,10 @@
      * XXX: This isn't entirely correct since we may be a PCI bus
      * on a hot-plug docking station, etc.
      */
-    if (!acpi_DeviceIsPresent(dev))
-       return_VALUE(ENXIO);
+    if (!acpi_DeviceIsPresent(dev)) {
+                       device_printf(dev, "This device is not present\n");
+      return_VALUE(ENXIO);
+    }
 
     /*
      * Get the PCI interrupt routing table for this bus.  If we can't
--- //depot/yahoo/ybsd_9/src/sys/dev/acpica/acpi_pcib_pci.c     2011-11-02 23:46:55.000000000 0000
+++ /home/seanbru/ybsd_9/sys/dev/acpica/acpi_pcib_pci.c 2011-11-02 23:46:55.000000000 0000
@@ -114,13 +114,16 @@
 acpi_pcib_pci_attach(device_t dev)
 {
     struct acpi_pcib_softc *sc;
+    int err_attach;
 
     ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 
     pcib_attach_common(dev);
     sc = device_get_softc(dev);
     sc->ap_handle = acpi_get_handle(dev);
-    return (acpi_pcib_attach(dev, &sc->ap_prt, sc->ap_pcibsc.secbus));
+    err_attach = acpi_pcib_attach(dev, &sc->ap_prt, sc->ap_pcibsc.secbus);
+    device_printf(dev, "%s: err_attach(%d)\n", __func__, err_attach);
+    return (err_attach);
 }