Issue persists in nasm 2.14-1 (Debian 10.2 Stable)
pbikos@dev:/home/large/code/osdev$ cat main.asm section .text pbikos@dev:/home/large/code/osdev$ nasm -f rdf main.asm main.asm:panic: rdf segment numbers not allocated as expected (2,4,6) pbikos@dev:/home/large/code/osdev$ nasm -v NASM version 2.14
