[macOS,M5 hardware] cpu_freq returned a result with an exception set

[georgevreilly]

Summary

• OS: macOS Tahoe 26.5.1
• Architecture: 64bit M5
• Psutil version: 7.2.2
• Python version: 3.14.5
• Type: core

Description

This simple script

#!/usr/bin/env python3

import psutil

print(psutil.cpu_freq(True))

fails

❯ uv run x.py
RuntimeError: invalid CPU frequency data

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/georgevreilly/src/pangur/x.py", line 5, in <module>
    print(psutil.cpu_freq(True))
          ~~~~~~~~~~~~~~~^^^^^^
  File "/Users/georgevreilly/src/pangur/.venv/lib/python3.14/site-packages/psutil/__init__.py", line 1945, in cpu_freq
    ret = _psplatform.cpu_freq()
  File "/Users/georgevreilly/src/pangur/.venv/lib/python3.14/site-packages/psutil/_psosx.py", line 166, in cpu_freq
    curr, min_, max_ = cext.cpu_freq()
                       ~~~~~~~~~~~~~^^
SystemError: <built-in function cpu_freq> returned a result with an exception set

When I run the repro on an M1 Mac on the same version of macOS, I get

[scpufreq(current=3228, min=600, max=3228)]

so this problem is likely specific to the new M5 hardware.