> What is the harm of not using this and just letting the number be infinite 
> (or until EFI runs out of space)?  Is it a big deal if extra failures
> are logged?


There may be someone using NVRAM for other purposes.
Actually, we have the user interface, /sys/firmware/efi/vars/new_vars, del_vars.

In this case, they want to avoid filling with unneeded logs. 

> The hope would be a daemon would clear the old logs out and you never run out 
> of space.

In most case
But as Tony mentioned, NVRAM may be filled with multiple oops even if we have 
the daemon.

Seiji
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