port-i386/40676: ACPI Exception AE_AML_NO_OPERAND when booting on VAIO P

[oshima-ya%yagoto-urayama.jp@localhost]

>Number:         40676
>Category:       port-i386
>Synopsis:       ACPI Exception AE_AML_NO_OPERAND when booting on VAIO P
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 17 15:40:00 +0000 2009
>Originator:     Yasushi Oshima
>Release:        NetBSD 5.99.7
>Organization:
>Environment:
NetBSD vaiop 5.99.7 NetBSD 5.99.7 (GENERIC) #0: Wed Feb 11 00:42:39 JST 2009
        oshima@sweety:/export/current/src/sys/arch/i386/compile/GENERIC

>Description:
When boot GENERIC kernel on my VAIO P, the following error occurs.

ACPI Exception (tbxface-0657): AE_AML_NO_OPERAND, While loading namespace from 
ACPI tables [20080321]
ACPI: unable to load tables: AE_AML_NO_OPERAND

After that, many devices cannot be detected, and then hangup.
it is the same in NetBSD 5.0RC2.

However in NetBSD 4.0,  It normally detects.

acpi0 at mainbus0: Advanced Configuration and Power Interface
acpi0: using Intel ACPI CA subsystem version 20060217
acpi0: X/RSDT: OemId <  Sony,    VAIO,20081208>, AslId <    ,01000013>
acpi0: SCI interrupting at int 9

>How-To-Repeat:
Boot current or netbsd-5 kernel with acpi on VAIO P
>Fix:
This is an acpica's bug.

See http://bugzilla.kernel.org/show_bug.cgi?id=10606

Fix patch:

diff -u -r1.4 sys/dist/acpica/dsfield.c
--- sys/dist/acpica/dsfield.c   12 Apr 2008 16:16:07 -0000      1.4
+++ sys/dist/acpica/dsfield.c
@@ -561,11 +561,6 @@
         return_ACPI_STATUS (AE_BAD_PARAMETER);
     }
 
-    if (!Arg)
-    {
-        return_ACPI_STATUS (AE_AML_NO_OPERAND);
-    }
-
     /* Creating new namespace node(s), should not already exist */
 
     Flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |

 
the boot messages is as follows:

acpi0 at mainbus0: Intel ACPICA 20080321
acpi0: X/RSDT: OemId <  Sony,    VAIO,20081208>, AslId <    ,01000013>
acpi0: SCI interrupting at int 9