https://bugzilla.kernel.org/show_bug.cgi?id=60822
Bug ID: 60822
Summary: wmi_evaluate_method sometimes fails with
AE_ALREADY_EXISTS
Product: ACPI
Version: 2.5
Kernel Version: 3.11-rc7
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 107374
--> https://bugzilla.kernel.org/attachment.cgi?id=107374&action=edit
acpidump for Clevo B7130
At very rare moments, my WMI module fails to call a WMI function. I reported
this a year ago at the linux-acpi list[1], but got no replies. There is also a
report for eeepc-wmi[2].
This issue breaks the WMI functionality of my the module, I need to
rmmod/insmod it again for hotkeys to work.
This WMBB function is pretty large, could that have anything to do with it?
I think there is something (hardware event?) that triggers the WMBB method
while my module executes it at the same time which confuses ACPI. No idea where
to look for the source though.
Kernel excerpt below:
ACPI Error: [_T_1] Namespace lookup failure, AE_ALREADY_EXISTS
(20130517/dswload2-330)
ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog
(20130517/psobject-222)
ACPI Error: Method parse/execution failed [\_SB_.WMI_.WMBB] (Node
ffff880232469988), AE_ALREADY_EXISTS (20130517/psparse-536)
clevo_wmi: Failed to execute function 0x46: AE_ALREADY_EXISTS
clevo_wmi: Unable to enable WMI notifications
bbswitch: disabling discrete graphics
ACPI Warning: \_SB_.PCI0.P0P2.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20130517/nsarguments-95)
ACPI: Marking method WMBB as Serialized because of AE_ALREADY_EXISTS error
[1]: http://www.spinics.net/lists/linux-acpi/msg39886.html
[2]: http://www.spinics.net/lists/linux-acpi/msg31769.html
--
You are receiving this mail because:
You are watching the assignee of the bug.
------------------------------------------------------------------------------
Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more!
Discover the easy way to master current and previous Microsoft technologies
and advance your career. Get an incredible 1,500+ hours of step-by-step
tutorial videos with LearnDevNow. Subscribe today and save!
http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk
_______________________________________________
acpi-bugzilla mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
