How to befriend real-time processes and OOM killer?
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    $ mlockall schedtool -R -p 4 -e ionice -c1 mplayer -really-quiet whatever.ogg
    $ mempig
    Killed

Mplayer

* is running with realtime scheduling priority
* is running with realtime IO priority
* have all it's pages locked in memory

but still "chops" when I start OOM-killer bait.

What more can be done to make real-time processes real-time even when OOM?