Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
higher temps on coretemp with 2.6.25* pls report (intel)
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware
View previous topic :: View next topic  
Author Message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5721
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Sat Apr 05, 2008 7:56 pm    Post subject: higher temps on coretemp with 2.6.25* pls report (intel) Reply with quote

Hi everybody,

I noticed much higher temps with 2.6.25* based kernels (currently rc8)

45 & 42 vs. 59 & 62 °C

(.24) (.25)

anyone noticed the same raise of temperature ?

I also noticed much louder noise due to faster-running cpu-fan/case-fans because of that high temperatures (3-4°C higher via cpu-cooler case-sensors)

cpu-model: Intel Core 2 Duo 6600

other core 2 duo users have reporrted to have encountered same issues

Intel-users please report !

thanks :)

p.s.:

if more are experiencing this, perhaps a report to lkml.org would be good, in order for a fix before 2.6.25-final release ?
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
dberkholz
Developer
Developer


Joined: 18 Mar 2003
Posts: 1008
Location: Minneapolis, MN, USA

PostPosted: Sun Apr 06, 2008 11:26 pm    Post subject: Reply with quote

Are you on at least rc8?
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5721
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Mon Apr 07, 2008 5:00 am    Post subject: Reply with quote

dberkholz wrote:
Are you on at least rc8?


++

yeah,

I'm currently using 2.6.25-rc8 based kernel-sources (zen-sources)

several others are reporting the same behavior

I need to test vanilla-sources a few days later (currently not much time)
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
dberkholz
Developer
Developer


Joined: 18 Mar 2003
Posts: 1008
Location: Minneapolis, MN, USA

PostPosted: Mon Apr 07, 2008 5:09 am    Post subject: Reply with quote

I think something might have gone into rc8-git3 or so. Check out git-sources.
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5721
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Mon Apr 07, 2008 5:39 am    Post subject: Reply with quote

dberkholz wrote:
I think something might have gone into rc8-git3 or so. Check out git-sources.


thanks ! :)
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5721
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Thu Apr 10, 2008 4:46 pm    Post subject: Reply with quote

*bump*

unfortunately they are still happening with latest state from 2 days ago :(

anyone experiencing the same behavior - too high temperatures - ?

input is highly appreciated since 2.6.25 will go final soon & sadly I don't have time to test since when this happens (exams 8O )

is there anyone who is willing to test-drive the releases between 2.6.24 & 2.6.25-rc8 / 2.6.25-rc8-git7 to find out since when this happens ? or any input
related to this problem ...

... I'm writing too much :roll:

thanks in advance :)
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
gerardo
Apprentice
Apprentice


Joined: 05 Feb 2004
Posts: 228
Location: Belgium

PostPosted: Sun Apr 13, 2008 6:28 pm    Post subject: Reply with quote

Same here on Intel Core 2 Duo on 2.6.25-r9-zen0: temp under idle is 59°C
It might be the reading which isn't correct because my fan doesn't turn any harder?
I don't know if it's the same problem on 2.6.24-zen4 or zen5 because I can't seem to get those working (hard lock on udevd while booting)
_________________
Windoze : Plug and Pay...
Back to top
View user's profile Send private message
paulbiz
Guru
Guru


Joined: 01 Feb 2004
Posts: 506
Location: St. Louis, Missouri, USA

PostPosted: Sun Apr 13, 2008 8:21 pm    Post subject: Reply with quote

in gentoo-sources .24 my E6600 is 25C at idle and 37C max under full load (compiling). I will try zen-sources and report my results!
Back to top
View user's profile Send private message
paulbiz
Guru
Guru


Joined: 01 Feb 2004
Posts: 506
Location: St. Louis, Missouri, USA

PostPosted: Sun Apr 13, 2008 9:28 pm    Post subject: Reply with quote

paulbiz wrote:
in gentoo-sources .24 my E6600 is 25C at idle and 37C max under full load (compiling). I will try zen-sources and report my results!

Hmm, I did zen-sources-9999 but it's still only showing 2.6.24 -- what am I missing?
Back to top
View user's profile Send private message
siddesu
n00b
n00b


Joined: 19 May 2007
Posts: 21
Location: japan

PostPosted: Mon Apr 14, 2008 5:31 am    Post subject: Reply with quote

are you guys also experiencing a large number of wakeups when running two cores (as reported by powertop?)
Back to top
View user's profile Send private message
paulbiz
Guru
Guru


Joined: 01 Feb 2004
Posts: 506
Location: St. Louis, Missouri, USA

PostPosted: Fri Apr 18, 2008 4:37 am    Post subject: Reply with quote

Okay, now I'm using gentoo-sources-2.6.25 and coretemp definitely does show much much higher temps than before. It is showing 47C but the CPU temp from uguru3 shows 29C (previously, uguru and coretemp would almost always match or be within 1 degree).
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5721
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Fri Apr 18, 2008 3:33 pm    Post subject: Reply with quote

gerardo wrote:
Same here on Intel Core 2 Duo on 2.6.25-r9-zen0: temp under idle is 59°C
It might be the reading which isn't correct because my fan doesn't turn any harder?
I don't know if it's the same problem on 2.6.24-zen4 or zen5 because I can't seem to get those working (hard lock on udevd while booting)


it isn't (at least for me) - I've started experiencing this "behavior" since 2.6.25-rc* kernel-releases :?

2.6.24-zen* releases showed all the same behavior in terms of coretemp & sensors readout
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5721
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Fri Apr 18, 2008 4:28 pm    Post subject: Reply with quote

latest news on this issue:

http://forums.gentoo.org/viewtopic-p-5065782.html#5065782
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
Dairinin
n00b
n00b


Joined: 03 Feb 2008
Posts: 64
Location: MSK, RF

PostPosted: Fri Apr 18, 2008 5:29 pm    Post subject: Reply with quote

Thats because new kernel (lm_sensors, etc?, etc?)incorrectly thinks our cpu's Tj is 100C, whereas for all core 2 duo's it is 85C (100C is for C0 stepping and above, AFAIK). Substract 15 and you'll get real temps.
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5721
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Fri Apr 18, 2008 6:22 pm    Post subject: Reply with quote

Dairinin wrote:
Thats because new kernel (lm_sensors, etc?, etc?)incorrectly thinks our cpu's Tj is 100C, whereas for all core 2 duo's it is 85C (100C is for C0 stepping and above, AFAIK). Substract 15 and you'll get real temps.


but why does it first happens since 2.6.25* :idea: :?:
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
Dairinin
n00b
n00b


Joined: 03 Feb 2008
Posts: 64
Location: MSK, RF

PostPosted: Fri Apr 18, 2008 6:51 pm    Post subject: Reply with quote

Maybe because of this (hwmon/coretemp.c, 2.6.25):
Code:
static int __devinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
{
        /* The 100C is default for both mobile and non mobile CPUs */

        int tjmax = 100000;
....
       if ((c->x86_model == 0xf) && (c->x86_mask < 4))
....
       if (ismobile) {

                err = rdmsr_safe_on_cpu(id, 0xee, &eax, &edx);
                if (err) {
                        dev_warn(dev,
                                 "Unable to access MSR 0xEE, for Tjmax, left"
                                 " at default");
                } else if (eax & 0x40000000) {
                        tjmax = 85000;


(hwmon/coretemp.c, 2.6.24):
Code:
        if (((c->x86_model == 0xf) && (c->x86_mask > 3)) ||
                (c->x86_model == 0xe))  {
                err = rdmsr_safe_on_cpu(data->id, 0xee, &eax, &edx);
                if (err) {
                        dev_warn(&pdev->dev,
                                 "Unable to access MSR 0xEE, Tjmax left at %d "
                                 "degrees C\n", data->tjmax/1000);
                } else if (eax & 0x40000000) {
                        data->tjmax = 85000;
                }


They set 85C for all cpu's with model 15 and stepping(not sure) <4. Core2duo E6600 has stepping 6...
In previous kernel all Core's with stepping >3 got 85C which obviously confused quad and 45nm owners, I think.

PS: Well, details are surely wrong, but the main idea is wrong cpu detection
Back to top
View user's profile Send private message
whitesouls
Guru
Guru


Joined: 19 Nov 2004
Posts: 358
Location: In Front of My Laptop

PostPosted: Mon Jun 30, 2008 5:57 pm    Post subject: Reply with quote

I'm experiencing this where my laptop temperature used to be at 42C max. Now it can go up 90C

Here are the details

Code:
SkullCrusherX ~ # uname -a
Linux SkullCrusherX 2.6.26-rc8-zen1 #1 SMP PREEMPT Sun Jun 29 23:42:49 MYT 2008 i686 Intel(R) Pentium(R) M processor 1.60GHz GenuineIntel GNU/Linux
SkullCrusherX ~ # cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.60GHz
stepping        : 6
cpu MHz         : 1600.000
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe up bts est tm2
bogomips        : 3191.16
clflush size    : 64
power management:


Code:
SkullCrusherX ~ # acpitool -e
  Kernel version : 2.6.26-rc8-zen120080321   -    ACPI version : 20080321
  -----------------------------------------------------------
  Battery #1     : slot empty

  AC adapter     : on-line
  Fan            : enabled
  Fan Speed      : 3490 RPM

  CPU type               : Intel(R) Pentium(R) M processor 1.60GHz
  Min/Max frequency      : 600/1600 MHz
  Current frequency      : 1600 MHz
  Frequency governor     : userspace
  Freq. scaling driver   : acpi-cpufreq
  Cache size             : 2048 KB
  Bogomips               : 3191.16
  Processor ID           : 0
  Bus mastering control  : yes
  Power management       : yes
  Throttling control     : yes
  Limit interface        : yes
  Active C-state         : C0
  C-states (incl. C0)    : 4
  Usage of state C1      : 0 (0.0 %)
  Usage of state C2      : 904117 (100.0 %)
  Usage of state C3      : 0 (0.0 %)
  T-state count          : 8
  Active T-state         : T0


  Thermal zone 1 : ok, 60 C
  Trip points :
  -------------
  critical (S5):           98 C
  passive:                 94 C: tc1=5 tc2=4 tsp=600 devices= CPU


  wakeup devices : <not available>


I've taken out the battery so that it wont contribute towards the temp. raising thingy.. any fix on this?
_________________
whitesouls

Please insert the [SOLVED] tag if your problem is solved in your respective thread.
Back to top
View user's profile Send private message
pdw_hu
Apprentice
Apprentice


Joined: 02 Jun 2008
Posts: 200
Location: Budapest, Hungary

PostPosted: Mon Jun 30, 2008 6:48 pm    Post subject: Reply with quote

Just a quick fix for 90% of the topic s/2.6.25/2.6.26 :)
Back to top
View user's profile Send private message
whitesouls
Guru
Guru


Joined: 19 Nov 2004
Posts: 358
Location: In Front of My Laptop

PostPosted: Wed Jul 09, 2008 12:20 pm    Post subject: Reply with quote

any updates on this? :(
_________________
whitesouls

Please insert the [SOLVED] tag if your problem is solved in your respective thread.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum