ACPI Exception: AE_AML_INFINITE_LOOP error

[Kim Culhan]

Ref. kern/139088

The machine is an Intel D945GCLF2 which has an Atom 330 processor and
at the time was running BIOS:
LF94510J.86A.0229.2009.0729.0209

Running FreeBSD 8.1 RC2 these errors were observed every few minutes
while running buildword
on FreeBSD 8.1-STABLE from 8-10-10 via cvsup.

messages.1:Aug 10 11:00:06 backster kernel: ACPI Error (psparse-0633): Method pa
rse/execution failed [\_SB_.PCI0.LPC_.SMBR] (Node 0xffffff00014362a0), AE_AML_IN
FINITE_LOOP-
messages.1:Aug 10 11:00:06 backster kernel: ACPI Error (psparse-0633): Method pa
rse/execution failed [\_SB_.PCI0.LPC_.INIT] (Node 0xffffff00014362c0), AE_AML_IN
FINITE_LOOP
messages.1:Aug 10 11:00:06 backster kernel: ACPI Error (psparse-0633): Method pa
rse/execution failed [\_GPE._L00] (Node 0xffffff000131ea40),
AE_AML_INFINITE_LOO P
messages.1:Aug 10 11:00:06 backster kernel: ACPI Exception:
AE_AML_INFINITE_LOOP ,
while evaluating GPE method [_L00] (20100331/evgpe-629)


After updating to 8.1-STABLE the errors did not return during a kernel
compile and several
port builds.

The BIOS has since been updated to the latest available on the same
date as the buildworld to 8.1-STABLE:

LF94510J.86A.0278.2010.0414.2000

A check of the logs shows no further occurrences of these ACPI errors
after 2 days of port builds and
other 'heavy' use.

Hope this helps..

-kim

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