cpum_sf.d9c8dd AUX buffer size (<Current AUX buffer size in num of pages> pages) is less than the minimum sampling buffer limit
Explanation
The CPU-measurement sampling facility uses an AUX buffer
to hold sampling data until it is consumed by an application, for example, perf.
The AUX buffer size must not be smaller than the minimum sampling buffer
limit.
User response
Repeat your measurements with a larger AUX buffer.
If you are using perf, you can set the buffer size with the -m option.
Use lscpumf to see the minimum sampling buffer size.