ACPI errors with software suspend and smartbattery

Hello everybody,
I have a smartbattery and I use therefore the sbs patches made by Rich Townsend to obtain the state of my battery. I have a little problem with software suspend (release 2.1.8.7 on kernel 2.6.11.10). On resume, I get the following errors:
ACPI-0405: *** Error: Handler for [EmbeddedControl] returned AE_TIME
ACPI-1138: *** Error: Method execution failed [\_TZ_.THRM._TMP]
(Node dfec9e40), AE_TIME
ACPI-0405: *** Error: Handler for [EmbeddedControl] returned AE_TIME
ACPI-1138: *** Error: Method execution failed
[\_SB_.PCI0.LPC0.EC0_.SMB0._SBR] (Node dfec9d20), AE_TIME
ACPI-1138: *** Error: Method execution failed
[\_SB_.PCI0.LPC0.EC0_.SMB0.SBRW] (Node dfeca780), AE_TIME

    ACPI-1138: *** Error: Method execution failed [\_SB_.ACQB] (Node
dfeca700), AE_TIME
    ACPI-1138: *** Error: Method execution failed [\_SB_.BAT0.CKAL]

(Node dfeca480), AE_TIME
ACPI-1138: *** Error: Method execution failed
[\_SB_.PCI0.LPC0.EC0_._Q09] (Node dfeca120), AE_TIME
That doesn't seem to be a big problem. After resuming, ACPI seems to work without problem and I can still get all ACPI info and events. However, does somebody know what these errors mean ?

Thanks in advance for your help,
Sincerely yours,
François Valenduc