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From: Meelis Roos <>
To: Linux Kernel list <>,
Subject: 2.6.21-rc1: more ACPI errors (EC__)
Date: Tue, 27 Feb 2007 22:49:45 +0200 (EET)	[thread overview]
Message-ID: <Pine.SOC.4.64.0702260842260.9705@math> (raw)

I tested 2.6.21-rc1 on my laptop (IBM X20 with 440BX) and found two 

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

Meelis Roos (

             reply	other threads:[~2007-02-27 20:49 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-27 20:49 Meelis Roos [this message]
2007-02-28 22:14 ` 2.6.21-rc1: more ACPI errors (EC__) Moore, Robert
2007-03-04 10:31 ` Alexey Starikovskiy
2007-03-08 15:48   ` Meelis Roos

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