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SubjectRe: mlockall(MCL_CURRENT) blocking infinitely
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Oh, and I just realized, that I have two custom settings in my
/etc/rc.local - guess, I configured that when I installed that machine
years ago. Sorry, that I haven't mentioned that earlier.

echo 0 > /sys/block/nvme0n1/queue/read_ahead_kb
echo never >
/sys/kernel/mm/transparent_hugepage/defrag

That setting is probably not quite standard, but I assume there are
some database server setups out there, that set RA=0 as well.

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