ACPI mutex error messages

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

Hi all,
if you get errors like the following from PR 37636, please try the
attached patch and contact me with the results.

Dec 28 09:48:45 foo /netbsd: ACPI Error (exmutex-0483): Cannot release Mutex 
[I2CM], not acquired [20070320]

Thanks, Joerg

Index: exmutex.c
===================================================================
RCS file: /data/repo/netbsd/src/sys/dist/acpica/exmutex.c,v
retrieving revision 1.3
diff -u -p -r1.3 exmutex.c
--- exmutex.c   11 Dec 2007 13:16:08 -0000      1.3
+++ exmutex.c   20 Jan 2008 19:31:37 -0000
@@ -286,6 +286,8 @@ AcpiExAcquireMutexObject (
     if (ACPI_FAILURE (Status))
     {
         /* Includes failure from a timeout on TimeDesc */
+        ACPI_ERROR ((AE_INFO, "Cannot acquire Mutex [%4.4s]: %s",
+            AcpiUtGetNodeName (ObjDesc->Mutex.Node), 
AcpiFormatException(Status)));
 
         return_ACPI_STATUS (Status);
     }