Turned computer on this morning and after a few reboots, I saw this in the logs:

kernel: [ 0.032415] mce: CPU supports 7 MCE banks
kernel: [ 0.044000] mce: [Hardware Error]: Machine check events logged
kernel: [ 0.044000] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 4: fe00000000070f0f
kernel: [ 0.044000] mce: [Hardware Error]: TSC 0 ADDR fe97c024 MISC c012000001000000
kernel: [ 0.044000] mce: [Hardware Error]: PROCESSOR 2:600f12 TIME 1553935675 SOCKET 0 APIC 0 microcode 600063e

Most of the advice says install mcelog, but this isn't available in the repositories any more.

1

1 Answer

mcelog was removed in Debian 10+ (Buster) and Ubuntu 18.04+

The functionality has been replaced by rasdaemon. Unfortunately the version of rasdaemon in Ubuntu 18.04 is old and is currently missing some functionality (eg: AMD CPU).

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