Hi all. I've been recently using osquery 5.2.3 on a M1 Pro laptop, running macOS 12.3.1. After several hours of the use, the palm reset heat-up (no fan). I queried the table

temperature_sensor

for info and it doesn't seem correct:

/usr/local/bin/osqueryi --line "select * from temperature_sensors order by fahrenheit desc;"
       key = TB0T
      name = Battery TS_MAX
   celsius = -1.0
fahrenheit = 30.2

       key = TB1T
      name = Battery 1
   celsius = -1.0
fahrenheit = 30.2

       key = TB2T
      name = Battery 2
   celsius = -1.0
fahrenheit = 30.2

       key = TG0H
      name = GPU Heatsink
   celsius = -1.0
fahrenheit = 30.2

       key = TW0P
      name = Airport Proximity
   celsius = -1.0
fahrenheit = 30.2

       key = Tp0C
      name = Power Supply 1 Alt.
   celsius = -1.0
fahrenheit = 30.2

       key = Ts0P
      name = Palm Rest
   celsius = -1.0
fahrenheit = 30.2

Hmm, maybe an M1 issue? cc @sharvil Values seem plausible on my intel MBP

/usr/local/bin/osqueryi --line "select * from temperature_sensors order by fahrenheit desc;"
       key = TC0F
      name = CPU 1
   celsius = 69.3
fahrenheit = 156.7

       key = TCXC
      name = PECI CPU
   celsius = 69.0
fahrenheit = 156.2

       key = TC2C
      name = CPU Core 2
   celsius = 68.0
fahrenheit = 154.4

       key = TC0E
      name = CPU 1
   celsius = 67.3
fahrenheit = 153.1

       key = TC1C
      name = CPU Core 1
   celsius = 67.0
fahrenheit = 152.6

       key = TC4C
      name = CPU Core 4
   celsius = 67.0
fahrenheit = 152.6

       key = TCSA
      name = PECI SA
   celsius = 67.0
fahrenheit = 152.6

       key = TC3C
      name = CPU Core 3
   celsius = 66.0
fahrenheit = 150.8

That make sense, but the reading is incorrect on my M1 Pro.

It's correct on a desktop M1?

@zwass thanks for making sense of it. So, it isn't sn issue with osquery?

It could definitely be an issue with osquery

ok.

So it's correct on 14" M1 Pro and incorrect on another M1 Pro?

I don't have another one handy at the moment.

I don't have an M1 handy but folks on our team do -- I would guess there's a firmware difference or something that causes the values returned by the API to be incorrect or something like that.

ok, I'll update to macOS 12.4 then try again. I'll have another M1 Pro available over the weekend with a fresh install.

My Intel MBP on 12.4 is working. But I suspect the issue will be intel vs. M1 rather than 12.4 vs 12.3. Let us know what you find.

I have an i9 8-core that shows proper details

I've opened an issue for you about this https://github.com/osquery/osquery/issues/7627

@zwass I did get another M1 Pro laptop this evening, with the latest macOS 12.4, to confirm same symptoms.

Yeah, this is not expected to work with Apple Silicon, the temperature sensors/fan speeds on Intel SMC keys, and all the power management is now on the SoC

Can we have the table return an error if it's on Apple Silicon rather than bad data?

@zwass yeah, I think that should be doable

I'd suggest the documentation get a footnote on the schema:

Show only Tables compatible with: macOS

for Intel-only on this table.

I just added a link to some Objective C code that will give us the temperature sensors on Apple Silicon, but it's BSD-3 code so I'll let someone else advise on how to borrow or derive from that

https://github.com/GuillaumeGomez/sysinfo/issues/456 has some snippets about which apple framework it's coming from. Which is probably enough for a clean implementation.