I just updated my laptop (an Acer Travelmate 2413WLCi) from 4.99.28 to 
4.99.31 (sources updated on Friday, October 05, 2007 at 23:38:42 UTC), 
and I'm getting some strange messages - these are displayed on the 
console continuously, at approximately 10-second intervals:

ACPI Error (evregion-0415): No handler for Region [RAM_] (0xc0a24c80) [EmbeddedControl] [20060217]
ACPI Error (exfldio-0381): Region EmbeddedControl(3) has no handler [20060217]
ACPI Error (psparse-0626): Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_.GBIF] (Node 0xc0a25e20), AE_NOT_EXIST
ACPI Error (psparse-0626): Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_.BAT0._BIF] (Node 0xc0a25ce0), AE_NOT_EXIST
acpibat0: failed to evaluate _BIF: AE_NOT_EXIST

There doesn't seem to be anything strange about the machine's acpi 
configuration:

paul@lappy {1} grep acpi /var/run/dmesg.boot
acpi0 at mainbus0: Advanced Configuration and Power Interface
acpi0: using Intel ACPI CA subsystem version 20060217
acpi0: X/RSDT: OemId <PTLTD ,  RSDT  ,06040000>, AslId < LTP,00000000>
acpi0: SCI interrupting at int 9
acpi0: fixed-feature power button present
CPU0 (ACPI Object Type 'Processor' [0x0c]) at acpi0 not configured
CPU1 (ACPI Object Type 'Processor' [0x0c]) at acpi0 not configured
AMW0 (pnp0c14) at acpi0 not configured
acpilid0 at acpi0 (LID0, PNP0C0D): ACPI Lid Switch
acpibut0 at acpi0 (SLPB, PNP0C0E): ACPI Sleep Button
PCI0 (PNP0A08) at acpi0 not configured
LNKA (PNP0C0F) at acpi0 not configured
LNKB (PNP0C0F) at acpi0 not configured
LNKC (PNP0C0F) at acpi0 not configured
LNKD (PNP0C0F) at acpi0 not configured
LNKE (PNP0C0F) at acpi0 not configured
LNKF (PNP0C0F) at acpi0 not configured
LNKG (PNP0C0F) at acpi0 not configured
LNKH (PNP0C0F) at acpi0 not configured
EC0 (PNP0C09) at acpi0 not configured
acpibat0 at acpi0 (BAT0, PNP0C0A-1): ACPI Battery (Control Method)
acpiacad0 at acpi0 (ADP1, ACPI0003): ACPI AC Adapter
DMAC (PNP0200) at acpi0 not configured
FWHD (INT0800) at acpi0 not configured
IPIC (PNP0000) at acpi0 not configured
MATH (PNP0C04) at acpi0 not configured
MBD0 (PNP0C02) at acpi0 not configured
RTC (PNP0B00) at acpi0 not configured
attimer0 at acpi0 (TIMR, PNP0100): AT Timer
pckbc0 at acpi0 (KBD0, PNP0303): kbd port
PS2M (SYN0302) at acpi0 not configured
acpitz0 at acpi0 (TZS0): ACPI Thermal Zone
acpitz0: unable to get polling interval; using default of 30.0s
acpitz0: passive cooling mode only
acpitz0: critical 100.0C passive 89.0C
acpitz1 at acpi0 (TZS1): ACPI Thermal Zone
acpitz1: unable to get polling interval; using default of 30.0s
acpitz1: critical 70.0C
paul@lappy {2}

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