\_SB_.PCI0:_OSC invalid UUID

[Cristian Aravena Romero]

[ 0.183350] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
[ 0.183535] \_SB_.PCI0:_OSC invalid UUID
[ 0.183537] _OSC request data:1 1f 0

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.15.0-6-generic 3.15.0-6.11
ProcVersionSignature: Ubuntu 3.15.0-6.11-generic 3.15.0
Uname: Linux 3.15.0-6-generic x86_64
ApportVersion: 2.14.3-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC1D0p: caravena 2524 F...m pulseaudio
 /dev/snd/controlC1: caravena 2524 F.... pulseaudio
 /dev/snd/controlC0: caravena 2524 F.... pulseaudio
CurrentDesktop: GNOME
Date: Fri Jun 27 21:37:04 2014
HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
InstallationDate: Installed on 2014-04-27 (61 days ago)
InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.15.0-6-generic root=UUID=13144268-2374-4154-83f1-c35d81306190 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.15.0-6-generic N/A
 linux-backports-modules-3.15.0-6-generic N/A
 linux-firmware 1.132
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/15/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P14AAJ
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 530U3C/530U4C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.16 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16-rc4-utopic/

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Bjorn Helgaas (bjorn-helgaas)]

Thanks for the bug report, Cristian. There's definitely something wrong here. There are several similar reports of invalid UUID, and I just don't believe they're all caused by BIOS bugs:

https://bugzilla.kernel.org/show_bug.cgi?id=17792 (your report)
https://bugzilla.kernel.org/show_bug.cgi?id=34192
https://bugzilla.kernel.org/show_bug.cgi?id=35532
https://bugzilla.kernel.org/show_bug.cgi?id=36932
https://bugzilla.kernel.org/show_bug.cgi?id=42604
https://bugzilla.kernel.org/show_bug.cgi?id=43229
https://bugzilla.kernel.org/show_bug.cgi?id=54951
https://bugzilla.kernel.org/show_bug.cgi?id=54981 (includes analysis that might be useful)
https://bugzilla.kernel.org/show_bug.cgi?id=59311
https://bugzilla.kernel.org/show_bug.cgi?id=70891
https://bugzilla.kernel.org/show_bug.cgi?id=73241 (SDHCI)
https://bugzilla.kernel.org/show_bug.cgi?id=87491
https://bugzilla.kernel.org/show_bug.cgi?id=90351
https://bugzilla.kernel.org/show_bug.cgi?id=93561 (SDHCI)

If these all really are BIOS bugs, I think we should figure out a better way of handling them.

In https://bugzilla.kernel.org/show_bug.cgi?id=93561, Maarten found that we complained about an invalid _OSC UUID when CONFIG_HOTPLUG_PCI_ACPI was not set, but _OSC worked when CONFIG_HOTPLUG_PCI_ACPI=y. We're still trying to figure out how that could make a difference.

Can you tell whether CONFIG_HOTPLUG_PCI_ACPI has any effect on the _OSC UUID error you're seeing? I attached a patch at https://bugzilla.kernel.org/show_bug.cgi?id=93561#c12 to try to debug a little further. It would be interesting if you could try it out, too. I guess you should post results either here or in a new kernel.org bugzilla, because 93561 is really not about the UUID error; it's about an SDHCI problem.