Linux 2.4.28 breaks lm_sensors

Linux 2.4.28 breaks lm_sensors

[Jean Delvare]

Hi Marcelo, hi all,

We have been having reports that recent changes in the ACPI subsystem of
the Linux 2.4 kernel are breaking lm_sensors on a fairly large number of
systems. In particular, 2.4.28 is affected.
http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1761
http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1819
http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1820

I did not report earlier because I thought the problem would be fixed by
the ACPI folks before 2.4.28 would be released. Unfortunately it wasn't.

The problem is already known, was reported for 2.6 kernels 4 months ago
and fixed there by David Shaohua. See this kernel bug report for the
detail of symptoms and the solution:
http://bugzilla.kernel.org/show_bug.cgi?id=3049

Applying the proposed patch to a 2.4.28 kernel make lm_sensors work
again on affected systems, while not causing trouble to unaffected ones
as far as I can tell.

Len, David, any reason not to apply the same fix to the 2.4 tree?

Thanks,

-- 
Jean Delvare
http://khali.linux-fr.org/

Re: Linux 2.4.28 breaks lm_sensors

[Marcelo Tosatti]

Hi,

On Sat, Nov 20, 2004 at 11:41:41AM +0100, Jean Delvare wrote:
> Hi Marcelo, hi all,
> 
> We have been having reports that recent changes in the ACPI subsystem of
> the Linux 2.4 kernel are breaking lm_sensors on a fairly large number of
> systems. In particular, 2.4.28 is affected.
> http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1761
> http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1819
> http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1820
> 
> I did not report earlier because I thought the problem would be fixed by
> the ACPI folks before 2.4.28 would be released. Unfortunately it wasn't.

Ouch :(

> The problem is already known, was reported for 2.6 kernels 4 months ago
> and fixed there by David Shaohua. See this kernel bug report for the
> detail of symptoms and the solution:
> http://bugzilla.kernel.org/show_bug.cgi?id=3049
> 
> Applying the proposed patch to a 2.4.28 kernel make lm_sensors work
> again on affected systems, while not causing trouble to unaffected ones
> as far as I can tell.
> 
> Len, David, any reason not to apply the same fix to the 2.4 tree?

It looks like this should come through the acpi BK tree. Len, David?