Ubuntu 20.04 最近开始随机冻结，没有键盘/鼠标响应（没有运行大型应用程序），我更新了 BIOS、固件，但问题仍然存在。我对 HP 系统进行了广泛的测试（内存测试、硬件测试、处理器测试等），没有发现任何问题。从journalctl它显示：
kernel: mce: [Hardware Error]: Machine check events logged
mce_notify_irq: callbacks suppressed
mcelog shows this:
CPU 0 BANK 5
MCG status:
MCi status:
Error overflow
Corrected error
MCi_MISC register valid
MCA: BUS error: 0 0 Level-3 Generic Generic Other-transaction Request-did-not- timeout
mcelog: Too many trigger children running already
UPI: COR LL Rx detected CRC error - successful LLR without Phy Reinit
<27>Dec 1 18:52:15 mcelog: Location: CPU 0 on socket 0
<27>Dec 1 18:52:15 mcelog: Location: CPU 0 on socket 0