lkml.org was ditched some time ago by kernel devs. It had often issues, is cropping messages, has no export function, has sometimes even ads on the site. That's why kernel.org folks run now their own reliable archive.

See: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin... https://lpc.events/event/11/contributions/983/attachments/75...