https://www.mail-archive.com/haproxy@formilux.org/msg34548.h...I haven't looked at this code in a long time! Haven't gotten to a computer and it's hard to read this on a phone, so... And I left where I wrote it, so I can't confirm if there were any substantial changes after these. My fuzzy memory is this may be all the HAProxy changes, then I focused on kernel level changes.