D32573.diff
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	diff --git a/usr.sbin/acpi/acpidump/acpi.c b/usr.sbin/acpi/acpidump/acpi.c
	--- a/usr.sbin/acpi/acpidump/acpi.c
	+++ b/usr.sbin/acpi/acpidump/acpi.c
	@@ -219,16 +219,22 @@
	if (addr_size == 8) {
	fadt_revision = 2;

	+#if defined(__i386__)
	/*
	* A few systems (e.g., IBM T23) have an RSDP that claims
	* revision 2 but the 64 bit addresses are invalid. If
	* revision 2 and the 32 bit address is non-zero but the
	* 32 and 64 bit versions don't match, prefer the 32 bit
	* version for all subsequent tables.
	+ *
	+ * The only known ACPI systems this affects are early
	+ * implementations on 32-bit x86. Because of this limit the
	+ * workaround to i386.
	*/
	if (fadt->Facs != 0 &&
	(fadt->XFacs & 0xffffffff) != fadt->Facs)
	fadt_revision = 1;
	+#endif
	} else
	fadt_revision = 1;
	return (fadt_revision);