why does this happen?
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Apr 14 17:35:45 prometheus kernel: grsec: CAP_CHOWN not raised for (proftpd:7356) UID(0) EUID(0), parent (proftpd:19043) UID(0) EUID(65534)
Apr 14 17:35:45 prometheus proftpd[7356]: prometheus.lan.berghof.org (192.168.0.101[192.168.0.101]) - chown() as root failed: Operation not permitted.
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I've not enabled any ACLs, the ACL system itself is enabled though.