Quick follow-up: On Wed, Dec 01, 2021 at 06:18:57PM +0100, Phil Sutter wrote: > If ENOENT wasn't reported as EINVAL, We could even fall back to plain > NLM_F_DUMP on older kernels. Maybe tackle that first and build upon > that? Not sure what I was seeing, but I checked again and ENOENT is indeed returned as it should. I'll look into the fall back idea then. Sorry for the confusion, Phil