linux-kernel - Re: [PATCH] Gracely handle GPE dispatch failure

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Message-ID: <1618556.15QVDXiiFD@vostro.rjw.lan>
Date:	Fri, 17 Apr 2015 03:02:24 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	"H.J. Lu" <hjl.tools@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH] Gracely handle GPE dispatch failure

On Thursday, April 16, 2015 04:37:45 PM H.J. Lu wrote:
> When GPE dispatch fails due to missing handler, kernel issues
> 
> ACPI Error: No handler for Region
> ACPI Error: Region EmbeddedControl
> ACPI Error: Method parse/execution failed
> ACPI Exception: AE_NOT_EXIST, while evaluating GPE method
> 
> and goes ahead enable GPE anyway.  After that, kernel goes into an
> infinite loop:
> 
> ACPI Error: No handler for Region
> ACPI Error: Region EmbeddedControl
> ACPI Error: Method parse/execution failed
> ACPI Exception: AE_NOT_EXIST, while evaluating GPE method
> 
> and repeat.  This patch avoids the infinite loop by not enabling GPE if
> GPE dispatch fails.

First, please send patches inline not in attachements.

Second, please CC this one to linux-acpi@...r.kernel.org and to the ACPICA
maintainers as per the information in the MAINTAINERS file.

Thanks!


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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