Hard Crash on i9-9900k

I use arch btw, crashes on high load in a docker container.

```
May 20 12:52:36 destroyer kernel: mce: [Hardware Error]: CPU 4: Machine Check: 0 Bank 0: 9400004000040150
May 20 12:52:36 destroyer kernel: mce: [Hardware Error]: TSC 95c3139c900 ADDR 1ffff98d3ee3f
May 20 12:52:36 destroyer kernel: mce: [Hardware Error]: PROCESSOR 0:906ec TIME 1589971956 SOCKET 0 APIC 8 microcode ca
May 20 12:52:36 destroyer kernel: mce: [Hardware Error]: CPU 4: Machine Check: 0 Bank 0: 9400004000040150
May 20 12:52:36 destroyer kernel: mce: [Hardware Error]: TSC 95c4651da2c ADDR 1ffff988e03c0
May 20 12:52:36 destroyer kernel: mce: [Hardware Error]: PROCESSOR 0:906ec TIME 1589971956 SOCKET 0 APIC 8 microcode ca
```

```
bsdtar -Oxf /boot/intel-ucode.img | iucode_tool -tb -lS -
iucode_tool: system has processor(s) with signature 0x000906ec
microcode bundle 1: (stdin)
selected microcodes:
001/183: sig 0x000906e9, pf_mask 0x2a, 2019-10-03, rev 0x00ca, size 100352
001/184: sig 0x000906ea, pf_mask 0x22, 2019-10-03, rev 0x00ca, size 99328
001/185: sig 0x000906eb, pf_mask 0x02, 2019-10-03, rev 0x00ca, size 100352
001/186: sig 0x000906ec, pf_mask 0x22, 2019-10-03, rev 0x00ca, size 99328
001/187: sig 0x000906ed, pf_mask 0x22, 2019-10-03, rev 0x00ca, size 100352
```

The report names no repository file or test. Start by reproducing the high-load crash in the Docker container on the i9-9900K and inspect the supplied kernel machine-check and microcode details. Done requires establishing whether the repository's microcode data is involved and identifying a specific repository change or a clear reason no change is applicable.

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