cpum_cfEdit online Messages with a prefix cpum_cf are issued by kernel functions that support the z/Architecture® CPU-measurement counter facility. cpum_cf.094d6cRegistering the cpum_cf PMU failed with rc=<error code>cpum_cf.1606b2Enabling the performance measuring unit failed with rc=<error condition>cpum_cf.2419afCPU[<cpu number>] MT counter data was lostcpum_cf.74a342Registering for CPU-measurement alerts failed with rc=<error code>cpum_cf.a9d681CPU[<cpu number>] Counter data was lostcpum_cf.db48c1Disabling the performance measuring unit failed with rc=<error condition>Parent topic: Linux on Z and LinuxONE kernel messages