Temprature of (non-continuous-index) CPU core showing N/A

[KumaTea]

Recently I set up a server with an Intel E5-2680 v4 CPU which has 14 cores and 2 threads per core.

I have installed htop and lm-sensors. htop shows:

    1[|      0.5% 30°C]   5[       0.0% 28°C]   9[|      0.5% 28°C]  13[       0.0% 28°C]  15[       0.0% 30°C]  19[|      0.5% 28°C]  23[       0.0% 28°C]  27[       0.0% 28°C]
    2[||     1.0% 28°C]   6[||     1.0% 30°C]  10[       0.0% 29°C]  14[       0.0% 29°C]  16[       0.0% 28°C]  20[||     1.0% 30°C]  24[|      0.5% 29°C]  28[       0.0% 29°C]
    3[|||    2.5% 29°C]   7[       0.0% 28°C]  11[       0.0% 30°C]                        17[       0.0% 29°C]  21[       0.0% 28°C]  25[|      0.5% 30°C]
    4[|      0.5% 29°C]   8[        0.0% N/A]  12[|      0.5% 29°C]                        18[|      0.5% 29°C]  22[||      1.0% N/A]  26[|      0.5% 29°C]
  Mem[||||||||||||                                                           2.59G/31.2G] Date & Time: 2024-11-17 14:00:09
  Swp[||                                                                     6.75M/43.0G] Uptime: 02:54:41
  Disk IO: 0.4% read: 0KiB/s write: 5KiB/s                                                Load average: 0.34 0.49 0.35                      

Note that core 8 (index 8 and 22) shows temprature of N/A.

Here's the output of lm-sensors:

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +34.0°C  (high = +90.0°C, crit = +100.0°C)
Core 0:        +29.0°C  (high = +90.0°C, crit = +100.0°C)
Core 1:        +28.0°C  (high = +90.0°C, crit = +100.0°C)
Core 2:        +29.0°C  (high = +90.0°C, crit = +100.0°C)
Core 3:        +28.0°C  (high = +90.0°C, crit = +100.0°C)
Core 4:        +28.0°C  (high = +90.0°C, crit = +100.0°C)
Core 5:        +30.0°C  (high = +90.0°C, crit = +100.0°C)
Core 6:        +28.0°C  (high = +90.0°C, crit = +100.0°C)
Core 8:        +28.0°C  (high = +90.0°C, crit = +100.0°C)
Core 9:        +29.0°C  (high = +90.0°C, crit = +100.0°C)
Core 10:       +29.0°C  (high = +90.0°C, crit = +100.0°C)
Core 11:       +30.0°C  (high = +90.0°C, crit = +100.0°C)
Core 12:       +28.0°C  (high = +90.0°C, crit = +100.0°C)
Core 13:       +29.0°C  (high = +90.0°C, crit = +100.0°C)
Core 14:       +29.0°C  (high = +90.0°C, crit = +100.0°C)

Core 7 (or 8 indexed from 1) is missing. It may indicate that the CPU had likely disabled core 8 and 16 from a 16 core one.

---

Would this be considered as a bug report or feature request? Since every core does have its temprature data. Or this won't be fixed because this situation is rare?

Thank you!

[fasterit]

Is it not doing the right thing? Because your paste looks as if you index CPUs from 1 in htop.
You can change that in F2 (Setup) -> Display options -> Count CPUs from 1 instead of 0.

[KumaTea]

you index CPUs from 1

Hi, thank you for your reply!

I did check the option Count CPUs from 1 instead of 0. It does not affect the issue. When unchecked:

    0[       0.0% 30°C]   4[|      0.7% 28°C]   8[       0.0% 28°C]  12[|      0.7% 28°C]  14[       0.0% 30°C]  18[||     2.0% 28°C]  22[||     2.6% 28°C]  26[|      0.7% 28°C]
    1[|      0.7% 28°C]   5[       0.0% 29°C]   9[       0.0% 29°C]  13[       0.0% 29°C]  15[       0.0% 28°C]  19[|      0.7% 29°C]  23[||     1.3% 29°C]  27[|      0.7% 29°C]
    2[|      0.7% 29°C]   6[       0.0% 28°C]  10[|      0.7% 29°C]                        16[|      0.7% 29°C]  20[||     1.9% 28°C]  24[       0.0% 29°C]
    3[       0.0% 28°C]   7[        0.0% N/A]  11[       0.0% 29°C]                        17[       0.0% 28°C]  21[        0.0% N/A]  25[       0.0% 29°C]

The same core (7[ 0.0% N/A] and 21[ 0.0% N/A] in this time) shows the same result N/A.

[pezz]

This appears to be an issue still.

I get temps from like 5 cores out of 20 even though sensors sees them all, but htop shows N/A for lots of them.

[fasterit]

@pezz: can you paste your sensors -j?

[pezz]

I should learn to count heh, sensors only sees 14 cores.

% sudo sensors -j | grep "Core " | wc -l
14

htop still only reports temp on 5 of them though.

{
   "coretemp-isa-0000":{
      "Adapter": "ISA adapter",
      "Package id 0":{
         "temp1_input": 28.000,
         "temp1_max": 80.000,
         "temp1_crit": 100.000,
         "temp1_crit_alarm": 0.000
      },
      "Core 0":{
         "temp2_input": 26.000,
         "temp2_max": 80.000,
         "temp2_crit": 100.000,
         "temp2_crit_alarm": 0.000
      },
      "Core 4":{
         "temp6_input": 25.000,
         "temp6_max": 80.000,
         "temp6_crit": 100.000,
         "temp6_crit_alarm": 0.000
      },
      "Core 8":{
         "temp10_input": 24.000,
         "temp10_max": 80.000,
         "temp10_crit": 100.000,
         "temp10_crit_alarm": 0.000
      },
      "Core 12":{
         "temp14_input": 25.000,
         "temp14_max": 80.000,
         "temp14_crit": 100.000,
         "temp14_crit_alarm": 0.000
      },
      "Core 16":{
         "temp18_input": 25.000,
         "temp18_max": 80.000,
         "temp18_crit": 100.000,
         "temp18_crit_alarm": 0.000
      },
      "Core 20":{
         "temp22_input": 24.000,
         "temp22_max": 80.000,
         "temp22_crit": 100.000,
         "temp22_crit_alarm": 0.000
      },
      "Core 24":{
         "temp26_input": 26.000,
         "temp26_max": 80.000,
         "temp26_crit": 100.000,
         "temp26_crit_alarm": 0.000
      },
      "Core 25":{
         "temp27_input": 26.000,
         "temp27_max": 80.000,
         "temp27_crit": 100.000,
         "temp27_crit_alarm": 0.000
      },
      "Core 26":{
         "temp28_input": 26.000,
         "temp28_max": 80.000,
         "temp28_crit": 100.000,
         "temp28_crit_alarm": 0.000
      },
      "Core 27":{
         "temp29_input": 26.000,
         "temp29_max": 80.000,
         "temp29_crit": 100.000,
         "temp29_crit_alarm": 0.000
      },
      "Core 28":{
         "temp30_input": 27.000,
         "temp30_max": 80.000,
         "temp30_crit": 100.000,
         "temp30_crit_alarm": 0.000
      },
      "Core 29":{
         "temp31_input": 27.000,
         "temp31_max": 80.000,
         "temp31_crit": 100.000,
         "temp31_crit_alarm": 0.000
      },
      "Core 30":{
         "temp32_input": 27.000,
         "temp32_max": 80.000,
         "temp32_crit": 100.000,
         "temp32_crit_alarm": 0.000
      },
      "Core 31":{
         "temp33_input": 27.000,
         "temp33_max": 80.000,
         "temp33_crit": 100.000,
         "temp33_crit_alarm": 0.000
      }
   },
   "spd5118-i2c-17-51":{
      "Adapter": "SMBus I801 adapter at efa0",
      "temp1":{
         "temp1_input": 27.250,
         "temp1_max": 55.000,
         "temp1_min": 0.000,
         "temp1_crit": 85.000,
         "temp1_lcrit": 0.000,
         "temp1_max_alarm": 0.000,
         "temp1_min_alarm": 0.000,
         "temp1_crit_alarm": 0.000,
         "temp1_lcrit_alarm": 0.000
      }
   },
   "acpitz-acpi-0":{
      "Adapter": "ACPI interface",
      "temp1":{
         "temp1_input": 27.800
      }
   },
   "nct6687-isa-0a20":{
      "Adapter": "ISA adapter",
      "VIN0":{
         "in0_input": 1.008,
         "in0_min": 0.000,
         "in0_max": 0.000
      },
      "VIN1":{
         "in1_input": 1.008,
         "in1_min": 0.000,
         "in1_max": 0.000
      },
      "VIN2":{
         "in2_input": 0.688,
         "in2_min": 0.000,
         "in2_max": 0.000
      },
      "VIN3":{
         "in3_input": 0.656,
         "in3_min": 0.000,
         "in3_max": 0.000
      },
      "VIN4":{
         "in4_input": 0.592,
         "in4_min": 0.000,
         "in4_max": 0.000
      },
      "VIN5":{
         "in5_input": 0.928,
         "in5_min": 0.000,
         "in5_max": 0.000
      },
      "VIN6":{
         "in6_input": 0.896,
         "in6_min": 0.000,
         "in6_max": 0.000
      },
      "VIN7":{
         "in7_input": 1.536,
         "in7_min": 0.000,
         "in7_max": 0.000
      },
      "VCC":{
         "in8_input": 3.344,
         "in8_min": 0.000,
         "in8_max": 0.000
      },
      "fan1":{
         "fan1_input": 0.000,
         "fan1_min": 0.000,
         "fan1_pulses": 2.000
      },
      "fan2":{
         "fan2_input": 0.000,
         "fan2_min": 0.000,
         "fan2_pulses": 2.000
      },
      "fan3":{
         "fan3_input": 811.000,
         "fan3_min": 0.000,
         "fan3_pulses": 2.000
      },
      "fan4":{
         "fan4_input": 0.000,
         "fan4_min": 0.000,
         "fan4_pulses": 2.000
      },
      "fan5":{
         "fan5_input": 0.000,
         "fan5_min": 0.000,
         "fan5_pulses": 2.000
      },
      "fan6":{
         "fan6_input": 0.000,
         "fan6_min": 0.000,
         "fan6_pulses": 2.000
      },
      "fan7":{
         "fan7_input": 0.000,
         "fan7_min": 0.000,
         "fan7_pulses": 2.000
      },
      "fan8":{
         "fan8_input": 2643.000,
         "fan8_min": 0.000,
         "fan8_pulses": 2.000
      },
      "fan9":{
         "fan9_input": 0.000,
         "fan9_min": 0.000,
         "fan9_pulses": 2.000
      },
      "fan10":{
         "fan10_input": 0.000,
         "fan10_min": 0.000,
         "fan10_pulses": 2.000
      },
      "PECI 0.0":{
         "temp1_input": 28.000,
         "temp1_max": 0.000,
         "temp1_max_hyst": 0.000,
         "temp1_min": 0.000,
         "temp1_crit": 0.000,
         "temp1_type": 6.000
      },
      "Diode 0 (curr)":{
         "temp2_input": 37.000,
         "temp2_max": 0.000,
         "temp2_max_hyst": 0.000,
         "temp2_min": 0.000,
         "temp2_crit": 0.000,
         "temp2_type": 3.000
      },
      "Thermistor 15":{
         "temp3_input": 31.000,
         "temp3_max": 127.000,
         "temp3_max_hyst": 27.000,
         "temp3_min": 0.000,
         "temp3_crit": 0.000,
         "temp3_type": 4.000
      },
      "PCH CHIP":{
         "temp4_input": 37.000,
         "temp4_max": 0.000,
         "temp4_max_hyst": 0.000,
         "temp4_min": 0.000,
         "temp4_crit": 0.000
      },
      "Thermistor 16":{
         "temp5_input": 29.000,
         "temp5_max": 0.000,
         "temp5_max_hyst": 0.000,
         "temp5_min": 0.000,
         "temp5_crit": 0.000,
         "temp5_type": 4.000
      },
      "intrusion0":{
         "intrusion0_alarm": 0.000
      },
      "beep_enable":{
         "beep_enable": 0.000
      }
   },
   "spd5118-i2c-17-53":{
      "Adapter": "SMBus I801 adapter at efa0",
      "temp1":{
         "temp1_input": 28.500,
         "temp1_max": 55.000,
         "temp1_min": 0.000,
         "temp1_crit": 85.000,
         "temp1_lcrit": 0.000,
         "temp1_max_alarm": 0.000,
         "temp1_min_alarm": 0.000,
         "temp1_crit_alarm": 0.000,
         "temp1_lcrit_alarm": 0.000
      }
   },
   "nvme-pci-0200":{
      "Adapter": "PCI adapter",
      "Composite":{
         "temp1_input": 29.850,
         "temp1_max": 81.850,
         "temp1_min": -273.150,
         "temp1_crit": 84.850,
         "temp1_alarm": 0.000
      },
      "Sensor 1":{
         "temp2_input": 29.850,
         "temp2_max": 65261.850,
         "temp2_min": -273.150
      },
      "Sensor 2":{
         "temp3_input": 33.850,
         "temp3_max": 65261.850,
         "temp3_min": -273.150
      }
   }
}

[Tsvetk]

dual xeon 2694av4 -
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +51.0°C (high = +83.0°C, crit = +93.0°C)
Core 0: +50.0°C (high = +83.0°C, crit = +93.0°C)
Core 1: +45.0°C (high = +83.0°C, crit = +93.0°C)
Core 2: +45.0°C (high = +83.0°C, crit = +93.0°C)
Core 3: +45.0°C (high = +83.0°C, crit = +93.0°C)
Core 4: +44.0°C (high = +83.0°C, crit = +93.0°C)
Core 5: +44.0°C (high = +83.0°C, crit = +93.0°C)
Core 6: +44.0°C (high = +83.0°C, crit = +93.0°C)
Core 7: +44.0°C (high = +83.0°C, crit = +93.0°C)
Core 8: +44.0°C (high = +83.0°C, crit = +93.0°C)
Core 9: +43.0°C (high = +83.0°C, crit = +93.0°C)
Core 10: +43.0°C (high = +83.0°C, crit = +93.0°C)
Core 11: +44.0°C (high = +83.0°C, crit = +93.0°C)
Core 12: +44.0°C (high = +83.0°C, crit = +93.0°C)
Core 13: +42.0°C (high = +83.0°C, crit = +93.0°C)
Core 14: +42.0°C (high = +83.0°C, crit = +93.0°C)
Core 15: +42.0°C (high = +83.0°C, crit = +93.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Package id 1: +50.0°C (high = +87.0°C, crit = +97.0°C)
Core 0: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 1: +47.0°C (high = +87.0°C, crit = +97.0°C)
Core 2: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 3: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 4: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 5: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 6: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 7: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 8: +46.0°C (high = +87.0°C, crit = +97.0°C)
Core 9: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 10: +47.0°C (high = +87.0°C, crit = +97.0°C)
Core 11: +46.0°C (high = +87.0°C, crit = +97.0°C)
Core 12: +45.0°C (high = +87.0°C, crit = +97.0°C)
Core 13: +43.0°C (high = +87.0°C, crit = +97.0°C)
Core 14: +43.0°C (high = +87.0°C, crit = +97.0°C)
Core 15: +43.0°C (high = +87.0°C, crit = +97.0°C)