Package power limit

Пишет в системный лог вот такое:
Что это значит? У меня, кончено, есть догадки, но хотелось бы точно знать.

[36994.320263] CPU1: Package power limit normal
[36994.320269] CPU0: Package power limit normal
[36994.320275] CPU5: Package power limit normal
[36994.320280] CPU4: Package power limit normal
[36994.320286] CPU7: Package power limit normal
[36994.320291] CPU6: Package power limit normal
[36994.320297] CPU3: Package power limit normal
[36994.320302] CPU2: Package power limit normal
[37801.357444] CPU2: Package power limit notification (total events = 3091)
[37801.357448] CPU3: Package power limit notification (total events = 3091)
[37801.357453] CPU6: Package power limit notification (total events = 3091)
[37801.357458] CPU1: Package power limit notification (total events = 3091)
[37801.357463] CPU5: Package power limit notification (total events = 3091)
[37801.357467] CPU7: Package power limit notification (total events = 3091)
[37801.357471] CPU4: Package power limit notification (total events = 3091)
[37801.357475] CPU0: Package power limit notification (total events = 3091)