http://bugzilla.kernel.org/show_bug.cgi?id=14112
Summary: Pressing acpi hotkeys duing hibernation may
occasionally cause EC transaction timeout
Product: ACPI
Version: 2.5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: EC
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=22979)
--> (http://bugzilla.kernel.org/attachment.cgi?id=22979)
Larger extract from /var/log/messgaes
I will work on this myself - this is just a heads up - though I'm happy to give
more information if requested.
I mentioned on linux-acpi that I tested the latest EC changes on my EeePC. One
test was to hammer the ACPI hotkeys during suspend and hibernation.
Looking at my logs later, this appears to have caused an error on one occasion
(out of several). I think it's most likely a pre-existing issue. I didn't
notice any ill effects, but I would still like to try and fix the error.
[ 1331.707584] PM: Creating hibernation image:
[ 1331.709880] PM: Need to copy 56242 pages
<hibernate/resume cycle here, I think>
[ 1331.709880] ehci_hcd 0000:00:1d.7: PME# disabled
[ 1332.203267] ACPI Exception: AE_TIME, Returned by Handler for
[EmbeddedControl] (20090730/evregion-424)
[ 1332.203298] ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.LID_._LID] (Node df013d80), AE_TIME
[ 1332.203381] ACPI Error (psparse-0537): Method parse/execution failed [\ATKN]
(Node df0139d8), AE_TIME
[ 1332.203456] ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.PCI0.SBRG.EC0_._Q11] (Node df013e70), AE_TIME
My first guess is that the suspend() method needs to wait for ongoing
transactions to finish.
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