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Re: Bug#404143: Fans unreliable under load, permanent memory leak

On Wed, Dec 27, 2006 at 03:40:58AM +0100, maximilian attems wrote:

> > I have reviewed the information available on the thermal problems with 
> > HP laptops, and it appears that there is a fairly conservative set of 
> > patches which takes care of the problems (thanks to Bas for pointing 
> > most of the out). I might have missed some upstream bugs, so please 
> > let me know if there is anything else available on the issue. Below is 
> > the summary, describing the relevant patches:
> i nack the mentioned patches!

Well, that's one in favor and one vote against then.
> backports are risky, again as you see for the net-r8169-1.patch,
> that is a "localized" driver enhancement with big slow down consequences
> #400524 and #403782. yes upstream has a fix for that and it should
> land soon, but still no one else bothered yet.

That's because slower networking will not break your hardware.

> the acpi patches may solve the troubles with those stupid HP laptops,
> but they have _certainly_ side effects.
> if you look at the acpi commits of this day you see that they broke
> a toshiba laptop.

Do you have a reference to that? And we do have a possibility to test 
the changes pretty extensively by uploading to unstable plus 
specifically asking people to test.
> back to the facts
> * the sarge kernel was released with *huge* thermal problems
>   and without any userspace help for early loading
> * the etch 2.6.18 linux acpi supports *many* thermal boxes
>   thermal hooks load modules at earliest possible stage
> * acpi releases have regression tests that are only run
>   for the complete release itself
> the sanest way is to disable acpi for the affected laptops
> and push a newer linux in a point release.

Do you have a patch which does that? If that would exist, I might 
reconsider my position.

> playing with acpi fire is not appropriate for a stable release.

It's all about cost/benefit analysis. In my eyes the benefits of 
introducing these patches significantly outweighs the possible 
problems, given the proper testing.

Best regards,
Jurij Smakov                                           jurij@wooyd.org
Key: http://www.wooyd.org/pgpkey/                      KeyID: C99E03CC

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