guys, what do you think of the first line from this boot

i think you should contact the bios vendor.

I believe those are quite common. Does it cause any problems?

From what I've heard firmware universally sucks ass. To the point where even enterprise harddrive drivers need to do all sorts of workarounds

DMAR is an abbreviation:

Direct Memory Address Reallocation

https://docs.kernel.org/core-api/...

I won't explain this, as the docs are better at this.

Your BIOS hands out wrong information regarding the mapping out to the kernel.

The kernel notices it and corrects it.

That's it. DMA Remapping is mostly necessary for e.g. GPU passthrough in virtual machines.

... Note that *a lot* of BIOSes hand out information wrong.

Drivers consist to one part of the core driver, the other part is quirks, workarounds, bug handling, special cases like interference with other drivers etc.

LKML is a fun place to read for rants as many device maintainers have nightmares from this...

Sounds like the expected ROM is smaller than the system spec if I understand the way modern firmware works

@IntrusionCM what is lkml? can u please link?

@Midnight-shcode

Linux kernel mailing list.

https://lkml.org/

Ok guys, FYI, this an Intel Nuc machine with i5-6280 with 32 GB Ram, I'm running Zorin Pro 16, i have never seen this error when running windows, when I switched to Linux it starts to appear, regarding errors it doesn't cause any issues, I tried to find a newer version of Bios from intel website however it seems that they disconnected support to NUC machines firmwares... Should I be considered regarding this bios message?

@dIREsTRAITS Nope.

The reason you won't see it in Windows is because windows drivers don't give a fuck.