I switched form sysvinit to runit with runit-init on Devuan chimaera. Since then at every boot I see the message "recovering journal" for the root partition. This indicates, that at the last shutdown the partition wasn't unmounted.
I don't see this message when using sysvinit. The root partition reports "clean" at boot then, which is the normal condition.
I added "sleep 10" at the end of runit stage 3 script to see, if there is a problem at shutdown, but couldn't see any.