jclulow this is because people have seen systems with missing memory mappings above 4GB - so when you get such memory allocated, you get nice exception on use... I havent seen such systems myself (physically or referenced by user), I am not sure if we really should keep this limit or not. I would rather try to remove it....

What's the quickest to find a cxgbe's firmware version on illumos?

kstat -p t4nex:0:config:fw_vers

fwflash -l

jclulow: my theory is that, like acpi before it, EFI has accumulated a lot of ancient wisdom from truly shitty 1st gen implementations.

and some day we just have to cut it all out, and see which system still breaks