Atom N270 - ACPI Error: [RTMP] Namespace lookup failure
avg at FreeBSD.org
Wed Jun 29 09:38:10 UTC 2011
on 29/06/2011 01:07 Ed VanderPloeg said the following:
> I'm using an Aaeon AEC-6831 embedded system based on an Intel Atom N270, which
> uses their GENE-9455 motherboard. After updating the BIOS to enable ACPI, I'm
> now getting the following (verbose) console message during boot and every 10
> seconds thereafter:
> ACPI Error: [RTMP] Namespace lookup failure, AE_NOT_FOUND (20101013/psargs-464)
> ACPI Error: Method parse/execution failed [\_TZ_.THRM._TMP] (Node 0xc56b0760),
> AE_NOT_FOUND (20101013/psparse-633)
> acpi_tz0: error fetching current temperature -- AE_NOT_FOUND
The problem is that RTMP is defined as an external object:
External (RTMP, IntObj)
so it's supposed to come from an additional table, but apparently either no
additional table defines it or a necessary additional table is not loaded.
This could be either a BIOS problem or... something else :)
> The unit seems to run very warm which makes me wonder if this problem is
> preventing lower power states, if such things are related.
> I've collected the outputs from a verbose dmesg, from sysctl hw.acpi, and from
> acpidump. They are zipped up over here:
Try either recent stable/8 or head (aka CURRENT) and see if it helps. They
contain a change that may be a work-around for a BIOS (ACPI tables) like yours.
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