Subject: port-i386/37636: ACPI mutex errors on Thinkpad 600E
To: None <port-i386-maintainer@netbsd.org, gnats-admin@netbsd.org,>
From: None <gdt@netbsd.org>
List: netbsd-bugs
Date: 12/28/2007 16:50:02
>Number: 37636
>Category: port-i386
>Synopsis: ACPI mutex errors on Thinkpad 600E
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: port-i386-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Dec 28 16:50:02 +0000 2007
>Originator: Greg Troxel
>Release: NetBSD 4.99.45, sources updated 2007-12-28T500Z
>Organization:
>Environment:
System: NetBSD foo.ir.bbn.com 4.99.45 NetBSD 4.99.45 (GENERIC) #9: Wed Dec 26 17:27:15 EST 2007 gdt@fnord.ir.bbn.com:/n0/obj/gdt-current/i386/sys/arch/i386/compile/GENERIC i386
Architecture: i386
Machine: i386
>Description:
In dmesg, I get the following lines at irregular intervals that seem
to have a 30-second period, but not every 30s tick generates them.
ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
ACPI Error (psparse-0631): Method parse/execution failed [\_SB_.PCI0.ISA0.EC0_.BAT0._BST] (Node 0xc1146680), AE_AML_MUTEX_NOT_ACQUIRED
acpibat0: failed to evaluate _BST: AE_AML_MUTEX_NOT_ACQUIRED
The machine is a Thinkpad 600E (2645-4AU).
>How-To-Repeat:
Simply running the system produces these often. A sample from a fresh
boot (egrepping for exmutex-) to show the times more clearly:
Dec 28 09:48:45 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:50:45 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:51:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:52:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:53:45 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:55:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:55:45 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:56:46 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:57:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:57:46 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:59:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 09:59:46 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 10:01:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 10:01:46 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 10:02:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 10:02:46 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 10:03:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 10:05:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
Dec 28 10:06:16 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex [I2CM], not acquired [20070320]
>Fix: