http://bugzilla.kernel.org/show_bug.cgi?id=14198
Summary: ACPI (kacpid) 100% CPU usage
Product: ACPI
Version: 2.5
Kernel Version: 2.6.31
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=23124)
--> (http://bugzilla.kernel.org/attachment.cgi?id=23124)
acpidump output
I've got a problem with one of my home debian nodes and I'm lead to
believe it is to do with the acpi system.
When installing 2.6.26 (debian vanilla) the system randomly locks up
with the message:
BUG: soft lockup detected on CPU#0! 61s
While kacpid consumes 100% cpu according to top.
With this being an older kernel I took it upon myself to build 2.6.31
to see if there was any change.
The system does not lock up any more, but kacpid still consumes close
to 100% cpu and I'm getting this in my dmesg:
[45699.978868] ACPI Error (psparse-0537): Method parse/execution
failed [\_SB_.PCI0.LPC_.SMBR] (Node f7812c48), AE_AML_INFINITE_LOOP
[45699.978905] ACPI Error (psparse-0537): Method parse/execution
failed [\_SB_.PCI0.LPC_.INIT] (Node f7812c30), AE_AML_INFINITE_LOOP
[45699.978936] ACPI Error (psparse-0537): Method parse/execution
failed [\_GPE._L00] (Node f78101b0), AE_AML_INFINITE_LOOP
[45699.978970] ACPI Exception: AE_AML_INFINITE_LOOP, while evaluating
GPE method [_L00] 20090521 evgpe-568
(constantly repeating).
acpidump attached
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