自从我将磁盘更改为 NVMe SSD 后，我的 Ubuntu 20 时不时就会冻结。
在调试内核日志时，我注意到这些错误：
[sex dez 4 11:34:55 2020] mce: CPU9: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU5: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU4: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU11: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU10: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU6: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU8: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU7: Package temperature above threshold, cpu clock throttled (total events = 9314)
[sex dez 4 11:34:55 2020] mce: CPU6: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU7: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU1: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU4: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU10: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU0: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU3: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU11: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU2: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU8: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU5: Package temperature/speed normal
[sex dez 4 11:34:55 2020] mce: CPU9: Package temperature/speed normal
这是我的 CPU 温度在出现此消息时的样子：
正如您所看到的，没有什么异常，并且内核消息还表明在同一秒内，所有 CPU 都高于阈值并且处于正常温度。
就像，到底是什么？到底是怎么回事？