problem with acpi and freebsd7

[Nicolas Letellier]

Hello,

I upgraded my system to 7.0-RELEASE, and in the dmesg, I see this message:

ioapic0 <Version 2.0> irqs 0-23 on motherboard
kbd1 at kbdmux0
acpi0: <A M I OEMRSDT> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, 3f6f0000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
ACPI Warning (tbutils-0243): Incorrect checksum in table [  üý] -   0, 
should be A5 [20070320]
ACPI Error (tbinstal-0222): Table has invalid signature [  üý], must be 
SSDT or PSDT [20070320]
ACPI Error (psparse-0626): Method parse/execution failed 
[\\_PR_.CPU1._PDC] (Node 0xc3ac1ba0), AE_BAD_SIGNATURE
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
ACPI Warning (tbutils-0243): Incorrect checksum in table [  üý] -   0, 
should be A5 [20070320]
ACPI Error (tbinstal-0222): Table has invalid signature [  üý], must be 
SSDT or PSDT [20070320]
ACPI Error (psparse-0626): Method parse/execution failed 
[\\_PR_.CPU2._PDC] (Node 0xc3ac1aa0), AE_BAD_SIGNATURE


Are the warning messages important? You can see the full dmesg here: 
http://zone.nicoelro.net/freebsd/dmesg-trinite

Thanks for your advices.

-Nicolas