Re: ACPI related process hangs on T42p

[Johannes Hofmann <Johannes.Hofmann@xxxxxx>]

Hi,

first of all, thanks for your hints. 

YONETANI Tomokazu <qhwt+dragonfly-bugs@xxxxxxxxxx> wrote:
>
> Just before you noticed that the processes started to hang, did you
> do something special? closing lids, pressing special key combos, or
> just kept it running without touching anything?
>

No, nothing.

> There's a kernel environment variable called debug.acpi.disabled, to
> disable ACPI features. This helps narrowing down which part of ACPI code
> is causing trouble. You can specify one or more of the following keywords,
> separated by spaces.
>   acad bus button children cmbat cpu ec
>   isa lid pci pci_link sysresource thermal timer
> 
> "acpi" disables everything
> "bus" disables "children"
> "pci" disables "pci_link"
> 
> pci-related code in the acpi code in our tree is said to be incorrect,
> so you may want to try disabling it first. There's also been a report
> of lock-up which was worked around by disabling thermal code, but I'm
> not sure whether it applies to your T42p.

debug.acpi.disabled="cmbat" solved the problem for me. At least, I didn't
see any lockups. But with Matt's latest ACPI commit, I don't have any
lockups even without disabling the acpi battery support.
So perhaps the problem is solved now. Knock on wood...

Bye,
Johannes