Re: 3.13.?: Strange / dangerous fan policy...

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On 2014-03-20 21:21, Manuel Krause wrote:
On 2014-03-11 22:59, Manuel Krause wrote:
On 2014-03-10 02:49, Manuel Krause wrote:
On 2014-03-09 18:58, Rafael J. Wysocki wrote:
On Sunday, March 09, 2014 01:10:25 AM Manuel Krause wrote:
On 2014-03-08 16:59, Guenter Roeck wrote:
On 03/08/2014 03:08 AM, Jean Delvare wrote:
On Fri, 7 Mar 2014 14:52:30 -0800, Guenter Roeck wrote:
On Fri, Mar 07, 2014 at 11:04:29PM +0100, Manuel Krause
wrote:
[SNIP]

Long time no reply from you... Have I overseen a unwritten
convention? Or were my charts that unusable for your analysis/work?

Two days ago, I tried the 3.14.0-rc7-vanilla. And the problem
persists. "Strange / dangerous fan policy..."

Since kernel 3.13.6 I've managed to 'fix' the potential
overheating problem by manually issuing a:
"echo 1 > /sys/class/thermal/cooling_device3/cur_state" *)
_before_ obviously critical temperatures occur. Remind: This
particular setting may only work for my system! ...and keeps
working for 3.14-rc.

In the following I'd like to present you a modified output of my
/sys/class/thermal, that I've written a script for (for my
system), that shows the results in the way of
linux/Documentation/thermal/sysfs-api.txt, point 3:
{I've uploded the files to pastebin, to not swamp you and the
lists with so many lines of logs.}

For the last good kernel -- 3.12.14 -- in-use:
  http://pastebin.com/HL1PNcda
For my first bad kernel revision 3.13 -- at critical temp:
  http://pastebin.com/98hgf1a9
For the last bad kernel -- 3.14.0-rc7 -- at critical temp:
  http://pastebin.com/MuTwTnjD
For the last bad kernel -- 3.14.0-rc7 -- after issuing the
  *) command:
  http://pastebin.com/2peda54z

Please, have a look at them! And maybe, give me hints on how I
can help you to further debug this issue, as my manual method
works but it's annoying.

And, PLEASE CC: ME, as I'm not on the lists. Or lead this
Email-thread to someone in charge.

Thank you for your work && best regards,
Manuel Krause


This is still BUG 71711
https://bugzilla.kernel.org/show_bug.cgi?id=71711

3.12.15 works very well
3.13.7 fails
3.14.0-rc8 fails

I've tried the tmon tool, now, too. Nice eyecandy and for monitoring!

I've tried to revert all "thermal" related patches from 3.12.14->3.13.7 from 3.13.7. But they don't seem to matter. (Even if I apply the vice-versa patch to 3.12.15.)

So "thermal" is out?

For the failing kernels: Not any reached trip point (active) triggers ONE fan action!

Next would be ACPI, to be investigated,

THX for this audience,
Manuel Krause


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