linux-kernel - Re: [PATCH v2 4/4] toshiba_acpi: Add blacklist for models with hotkey problems

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Message-ID: <20120105205831.GH25386@ubuntu-macmini>
Date:	Thu, 5 Jan 2012 14:58:31 -0600
From:	Seth Forshee <seth.forshee@...onical.com>
To:	"Moore, Robert" <robert.moore@...el.com>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>, Len Brown <lenb@...nel.org>,
	Azael Avalos <coproscefalo@...il.com>,
	Thomas Renninger <trenn@...e.de>,
	"platform-driver-x86@...r.kernel.org" 
	<platform-driver-x86@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Lin, Ming M" <ming.m.lin@...el.com>
Subject: Re: [PATCH v2 4/4] toshiba_acpi: Add blacklist for models with
 hotkey problems

On Thu, Jan 05, 2012 at 08:46:43PM +0000, Moore, Robert wrote:
> > My only guess is that Windows is more permissive about this sort of
> > thing than ACPICA is, but by my reading of the spec throwing a fatal
> > error is what's supposed to happen.
> 
> If it is true that Windows will execute this code without error, then ACPICA should be changed to match the Windows behavior. ACPICA is now a "Windows compatible" implementation of ACPI, but that of course means we are attempting to be compatible with a black box ACPI implementation. On the other hand, it may be the case that Windows never executes this code, so the error is not seen on Windows.
> 
> We would like to investigate this further. Please send or point me to the acpidump for this machine.

I posted the ACPI tables at the following link. Let me know if there's
anything I can do to help.

http://people.canonical.com/~sforshee/toshiba-acpi/nb505-acpi-tables.txt

Thanks,
Seth

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