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Date:	Thu, 14 Feb 2013 02:10:27 +0100
From:	Andreas Mohr <andi@...as.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
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

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,

Andreas Mohr
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