linux-kernel - Re: [PATCH] PCI / ACPI: Report _OSC control mask returned on failure to get control

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Message-ID: <7634687.RmnPKEe4lz@vostro.rjw.lan>
Date:	Thu, 14 Feb 2013 13:07:02 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Andreas Mohr <andi@...as.de>
Cc:	linux-pci@...r.kernel.org,
	ACPI Devel Mailing List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] PCI / ACPI: Report _OSC control mask returned on failure to get control

On Thursday, February 14, 2013 02:10:27 AM Andreas Mohr wrote:
> Hi,
> 
> to provide an example case, on Aspire One AOA110 v0.3310, 3.8-rc7 prints:
> 
> [    0.515599] ACPI Error: [CAPB] Namespace lookup failure,
> AE_ALREADY_EXISTS (2
> 0121018/dsfield-211)
> [    0.515629] ACPI Error: Method parse/execution failed
> [\_SB_.PCI0._OSC] (Node f5449680), AE_ALREADY_EXISTS
> (20121018/psparse-537)
> [    0.515672] ACPI: Marking method _OSC as Serialized because of
> AE_ALREADY_EXISTS error
> [    0.516081] ACPI Error: [CAPB] Namespace lookup failure,
> AE_ALREADY_EXISTS (20121018/dsfield-211)
> [    0.516107] ACPI Error: Method parse/execution failed
> [\_SB_.PCI0._OSC] (Node f5449680), AE_ALREADY_EXISTS
> (20121018/psparse-537)
> [    0.516168] pci_root PNP0A08:00: ACPI _OSC support notification
> failed, disabling PCIe ASPM
> [    0.516179] pci_root PNP0A08:00: Unable to request _OSC control (_OSC
> support mask: 0x08)
> 
> HTH,

Unfortunately, it doesn't, because I've lost track of the whole thread in the
meantime.  Care to give a pointer?

Rafael


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