This exception appears to be originating somewhere in the EC driver: ACPI Exception (evregion-0420): AE_NOT_FOUND, Returned by Handler for [EmbeddedControl] [20070126] > -----Original Message----- > From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi- > owner@xxxxxxxxxxxxxxx] On Behalf Of Meelis Roos > Sent: Tuesday, February 27, 2007 12:50 PM > To: Linux Kernel list; linux-acpi@xxxxxxxxxxxxxxx > Subject: 2.6.21-rc1: more ACPI errors (EC__) > > I tested 2.6.21-rc1 on my laptop (IBM X20 with 440BX) and found two > problems: > > First, a seemingly harmless one - ACPI error messages during bootup: > > ACPI Exception (evregion-0420): AE_NOT_FOUND, Returned by Handler for > [EmbeddedControl] [20070126] > ACPI Exception (dswexec-0462): AE_NOT_FOUND, While resolving operands for > [OpcodeName unavailable] [20070126] > ACPI Error (psparse-0537): Method parse/execution failed > [\_SB_.PCI0.ISA_.EC__.BAT0._STA] (Node d3c435e0), AE_NOT_FOUND > ACPI Exception (evregion-0420): AE_NOT_FOUND, Returned by Handler for > [EmbeddedControl] [20070126] > ACPI Error (psparse-0537): Method parse/execution failed > [\_SB_.PCI0.ISA_.EC__.AC__._PSR] (Node d3c43540), AE_NOT_FOUND > ACPI Exception (ac-0095): AE_NOT_FOUND, Error reading AC Adapter state > [20070126] > > And second, there were ACPI error messages about EC__ during shutdown. > These messages appeared, then the "acpi_power_off called" message > appeared, then it waited for about 5 seconds (this does not happen > normally) and then it succeeded shutting down. Captured a screenshot of > these messages, temporarily available at > http://www.cs.ut.ee/~mroos/x20-shutdown-acpi-errors.jpg > > -- > Meelis Roos (mroos@xxxxxxxx) > - > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
