In uvm_fault(), when attempting to map backpages and forwpages, defer the pmap_update() to the end of the loop, rather than after each loop iteration - which might not even end up invoking pmap_enter()!
In uvm_fault(), when attempting to map backpages and forwpages, defer
the pmap_update() to the end of the loop, rather than after each loop
iteration - which might not even end up invoking pmap_enter()!

Quiet blessing from guenther@ deraadt@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars