By "normal" I did not mean that it is fine. I meant that other MAFW applications do that too and not by their choice. The culprit is g_debug() called from libmafw-shared0. I've compiled it without MAFW_DEBUG and the syslog is clean. Now I wonder if it's possible to disable g_debug() from OMP's side or perhaps if it's better to upload modified mafw-shared to the repositories so that other applications can remain quiet too.