thinkpad x60: critical thermal shutdown does not work (and ethernet overheats)

thinkpad x60: critical thermal shutdown does not work (and ethernet overheats)

[Pavel Machek]

Hi!

I have rather old thinkpad x60 here. Long time ago, I noticed that on
high continuous ethernet load, it shuts itself down in regular
way. I traced it down to overheat, followed by ACPI signaling system
to go down.

This no longer works in recent kernels. (3.4-rc7 tested, but probably
it does not work correctly in 3.2 either). Now machine just hangs when
it should start /sbin/poweroff. If I then turn it on, it hangs during
ACPI init. I have to let it cool down, then it can boot.

Now:

a) Any ideas how to solve the overheating problem? Is it hw or sw? Are
there workarounds... like should I go to 10mbit? (It overheats even
under 2MB/sec continuous load...). Is it common thinkpad fault?

b) Why did it stop shutting down correctly? Can you reproduce it by
overheating machine artifically?

Ideas?
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: thinkpad x60: critical thermal shutdown does not work (and ethernet overheats)

[Pavel Machek]

Hi!

> I have rather old thinkpad x60 here. Long time ago, I noticed that on
> high continuous ethernet load, it shuts itself down in regular
> way. I traced it down to overheat, followed by ACPI signaling system
> to go down.

just to wrap the story up... after fixing pcie aspm problems,
ethernet apparently stopped overheating.

					pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: thinkpad x60: critical thermal shutdown does not work (and ethernet overheats)

[Henrique de Moraes Holschuh]

On Mon, 23 Sep 2013, Pavel Machek wrote:
> > I have rather old thinkpad x60 here. Long time ago, I noticed that on
> > high continuous ethernet load, it shuts itself down in regular
> > way. I traced it down to overheat, followed by ACPI signaling system
> > to go down.
> 
> just to wrap the story up... after fixing pcie aspm problems,
> ethernet apparently stopped overheating.

And that means a new kernel with fixed ASPM handling, or disabling ASPM
entirely, or what?

Good to know it can be handled by a software fix, though!

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

Re: thinkpad x60: critical thermal shutdown does not work (and ethernet overheats)

[Pavel Machek]

On Mon 2013-09-23 09:02:56, Henrique de Moraes Holschuh wrote:
> On Mon, 23 Sep 2013, Pavel Machek wrote:
> > > I have rather old thinkpad x60 here. Long time ago, I noticed that on
> > > high continuous ethernet load, it shuts itself down in regular
> > > way. I traced it down to overheat, followed by ACPI signaling system
> > > to go down.
> > 
> > just to wrap the story up... after fixing pcie aspm problems,
> > ethernet apparently stopped overheating.
> 
> And that means a new kernel with fixed ASPM handling, or disabling ASPM
> entirely, or what?

That means single-line forcing ASPM to be disabled, even through linux
is normally not able to disable ASPM when it is not supported by the
BIOS. Someone at Intel knows about the problem, hopefully they will
present some better solution...

> Good to know it can be handled by a software fix, though!

Yes :-). [I wonder if it happens on other X60 machines, too?]
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html