Comment 14 for bug 1904529

It's not clear what was the previous most recent kernel that the machine was running before the upgrade and reboot, however previous installed kernel on the machines were:

2019
Jun 24 4.15.0-54
Jul 2 4.15.0-55
Aug 6 4.15.0-58

2020
Jun 23 4.15.0-109
Jul 9 4.15.0-112
Oct 21 4.15.0-123 --> last kernel install

possibly previous working kernel was 4.15.0-112, but might have been any of the previous ones.