On Thu, 13 Dec 2007, YAMAMOTO Takashi wrote:
> it panics at another place.

Sigh, looks like your DSDT is badly broken. Here's another patch to try in 
addition to the previous one:

Index: OsdHardware.c
===================================================================
RCS file: /cvsroot/src/sys/dev/acpi/acpica/OsdHardware.c,v
retrieving revision 1.3
diff -u -r1.3 OsdHardware.c
--- OsdHardware.c       9 Dec 2007 20:27:54 -0000       1.3
+++ OsdHardware.c       12 Dec 2007 23:14:40 -0000
@@ -206,6 +206,9 @@

         /* XXX Need to deal with "segment" ("hose" in Alpha terminology). 
*/

+       if (PciId->Bus >= 256 || PciId->Device >= 32 || PciId->Function >= 
8)
+               return AE_BAD_PARAMETER;
+
         tag = pci_make_tag(acpi_softc->sc_pc, PciId->Bus, PciId->Device,
             PciId->Function);
         tmp = pci_conf_read(acpi_softc->sc_pc, tag, Register & ~3);