https://bugzilla.kernel.org/show_bug.cgi?id=20232
Zhang Rui <rui.zh...@intel.com> changed:
What |Removed |Added
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Status|NEW |NEEDINFO
CC| |acpi-bugzi...@lists.sourcef
| |orge.net,
| |rui.zh...@intel.com
AssignedTo|acpi_config-interru...@kern |rui.zh...@intel.com
|el-bugs.osdl.org |
--- Comment #2 from Zhang Rui <rui.zh...@intel.com> 2010-10-13 06:52:34 ---
(In reply to comment #0)
> I'm having a serious CPU hogging problem with an HP Elitebook 8540w running
> 2.6.36_rc6. A kworker consumes ~100% CPU during all the uptime since booting.
>
what's the latest good kernel?
what's the earlies bad kernel?
>
> Then I found a similar report and tried writing "disable" to
> /sys/firmware/acpi/interrupts/gpe01 and it stopped the kworker CPU consumation
> problem *although the load average doesn't drop under ~1.3*. When enabled the
> number of interrupts in /sys/firmware/acpi/interrupts/gpe01 increases very
> fast.
>
> The problem is not fixed with the pcie_pme=off trick suggested in the other
> bug
> report related to this laptop.
>
hmm, seems an ACPI interrupt storm.
please attach the acpidump of this laptop.
please attach the dmesg output after boot for both the good and the bad kernel.
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