Linux DMESG error message: Warning:nr_cpus limit of 8 reached. Processor ignored solving method

Phenomenon:

The server system log has warning details as follows:
Warning:nr_cpus limit of 8 reached. Processor ignored.
Process Steps & Solutions:

For example, the following kernel warning message can be seen on individual servers: Warning:nr_cpus limit of 8 reached. Processor ignored.
The warning message means that the number of logical CPUs identified by nuclear power is 8, and the rest of the logical CPUs are ignored.
Q: Does it look like there are more logical CPUs that are not really being used?
A: Quite simply, upgrade the kernel version, for example:
1. Without the SMP kernel module installed, upgrade to a kernel version that supports SMP modules
2. After the SMP module has been installed, this warning also appears, how to do? The answer is still very simple, install more NB Support LARGESMP module kernel version

Processing results:

Install the correct version of the kernel.