Created attachment 196359 [details]
Confirmed happening on two different machines, one physical and one VM.
When using VESA to set the syscons resolution via /boot/device.hints:
Some of the kernel messages text appears in dark gray with no discernible pattern.
This started with 11.2-RELEASE.
This is probably one of bde's syscons patches that added colorizing by CPU, e.g., r330918.
I confirm, it stops happening when I set the VM to only have one CPU, and inversely, I get more colors if I add more CPUs.
Seems like it's not a bug then.
How do I turn it off though?
(In reply to koro from comment #2)
Have a look at the SC_KERNEL_CONS_ATTRS description in syscons(4)
This is now syscons' default behaviour for kernel messages.