Re: [BUG] [hwmon] linux 2.6.31-rc6 regression

[Stefan Richter]

Matthew Garrett wrote:
> On Sun, Aug 16, 2009 at 07:37:35AM +0200, Markus Trippelsdorf wrote:
> > On Sun, Aug 16, 2009 at 02:03:03AM +0100, Matthew Garrett wrote:
> > > The hwmon driver is attempting to allocate a region that's also used by 
> > > your ACPI firmware. There's no way to synchronise access between the 
> > > kernel and the firmware, so allowing both is potentially racy - we've 
> > > seen numerous cases where the combination results in the system 
> > > incorrectly generating critical temperatuer shutdowns, for instance, 
> > > when some other indexed access gets interpreted as the temperature or 
> > > when the hwmon chip's state machine is confused. The failure of hwmon to 
> > > bind is a feature here, not a bug. You can override it with 
> > > acpi_enforce_resources=no on the kernel command line.
> > But we don't introduce »features« that break hardware monitoring on
> > numerous machines in rc6 normally, IIRC.
> > If this so important and critical to you, than just add a »hyperstrict«
> > parameter to acpi_enforce_resources or make »lax« the default.
>
> It's not - 2.6.29 had this behaviour, and it got broken in 2.6.30. This 
> restores the status quo.

Then why did my 2.6.29 did _not_ have this behavior?
(here: ASUS M3A78-EM, it87 driver)
--
Stefan Richter
-=====-==--= =--- =----
http://arcgraph.de/sr/
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