HP6710: acpi_task_0 - WCPU 96.68%

Nate Lawson nate at root.org
Wed Oct 10 09:14:29 PDT 2007

Roman Pavlik wrote:
> This issue appears on 7-CURRENT running on HP 6710b. I'm running
> kernel where the following options were commented out:
>  #options     PREEMPTION              # Enable kernel thread preemption       
>  #options     ADAPTIVE_GIANT          # Giant mutex is adaptive.              
> There is issue with the process acpi_task_0. It consumes 96.68% WCPU.

What happens if you enable those two options?  This is probably a Notify
storm caused by the inability to ack it.


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