Hi Seri,
> In recent haproxy 1.5 git repository, > segmentation fault was occurred. Can you post haproxy -vv output? Does haproxy crashes right away when starting, when the first request comes in or sporadically? Can you reliably reproduce it and can you help us do the same? Can you show some example content of ip_blacklist.acl and host_to_backend.map? Regards, Lukas