heat problem on my laptop

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

Hi,


I have a dangerous heat problem:

$ envstat
                                     Current  CritMax  WarnMax  WarnMin  
CritMin  Unit
[acpiacad0]
                        connected:      TRUE
[acpibat0]
                          present:      TRUE
                   design voltage:    10.800              V
                          voltage:    12.579              V
                       design cap:     5.100             Ah
                    last full cap:     5.088             Ah
                           charge:     4.960                     12.068%   
7.056%   Ah (97.48%)
                      charge rate:    -0.001              A
                   discharge rate:       N/A
                         charging:      TRUE
                     charge state:    NORMAL
[acpitz0]
  cpu0/cpu1/cpu2/cpu3 temperature:    83.000  100.000                           
  degC
                              FAN:      5052              5000     2400         
  RPM
[amdtemp0]
                 cpu0 temperature:    80.750                                    
  degC
[hpacel0]
                   x-acceleration:     -1280        0        0        0        
0  none
                   y-acceleration:       768        0        0        0        
0  none
                   z-acceleration:      3840        0        0        0        
0  none

$ sysctl machdep.powernow
machdep.powernow.frequency.target = 800
machdep.powernow.frequency.current = 800
machdep.powernow.frequency.available = 1600 1400 1100 800

Given the high cpu temperature this cannot be right.

$ uname -a
NetBSD rhodium 6.99.11 NetBSD 6.99.11 (GENERIC) #25: Mon Sep 24 09:28:44 CEST 
2012  cegger@tulln:/netbsd/build/obj.kern.amd64/GENERIC amd64

$ cpuctl identify 0
Cannot bind to target CPU.  Output may not accurately describe the target.
Run as root to allow binding.

cpu0: AMD Family 10h (686-class), 1596.63 MHz, id 0x100f53
cpu0: features  0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features  0x178bfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2>
cpu0: features  0x178bfbff<HTT>
cpu0: features2 0x802009<SSE3,MONITOR,CX16,POPCNT>
cpu0: features3 0xefd3fbff<SYSCALL/SYSRET,NOX,MXX,FFXSR,P1GB,RDTSCP,LONG>
cpu0: features3 0xefd3fbff<3DNOW2,3DNOW>
cpu0: features4 0x837ff<LAHF,CMPLEGACY,SVM,EAPIC,ALTMOVCR0,LZCNT,SSE4A>
cpu0: features4 0x837ff<MISALIGNSSE,3DNOWPREFETCH,OSVW,IBS,SKINIT,WDT>
cpu0: features4 0x837ff<NodeID>
cpu0: "AMD Phenom(tm) II P920 Quad-Core Processor"
cpu0: I-cache 64KB 64B/line 2-way, D-cache 64KB 64B/line 2-way
cpu0: L2 cache 512KB 64B/line 16-way
cpu0: ITLB 32 4KB entries fully associative, 16 2MB entries fully associative
cpu0: DTLB 48 4KB entries fully associative, 48 2MB entries fully associative
cpu0: L2 ITLB 512 4KB entries 4-way
cpu0: L2 DTLB 512 4KB entries 4-way, 128 2MB entries 2-way
cpu0: L1 1GB page DTLB 48 1GB entries fully associative
cpu0: L2 1GB page DTLB 16 1GB entries 8-way
cpu0: Initial APIC ID 3
cpu0: AMD Power Management features: 0x1f9<TS,TTP,HTC,STC,100,HWP,TSC>
cpu0: SVM Rev. 1
cpu0: SVM NASID 64
cpu0: SVM features 0xf<NP,LbrVirt,SVML,NRIPS>
cpu0: family 0f model 05 extfamily 01 extmodel 00 stepping 03
cpu0: UCode version: 0x10000b6


Christoph