Why is this an issue?

The sensitivity list of a process should be complete to avoid mismatch between synthesis and simulation.

To check for non-minimal sensitivity list, activate The sensitivity list of a process should be minimal

How to fix it

Code examples

Noncompliant code example

process (y) is -- Noncompliant: 'z' is missing
begin
   q <= y or z;
end process;

Compliant solution

process (y, z) is
begin
   q <= y or z;
end process;