Something I thought about: if btrfs is default and clean install if btrfs is used inside that virtualmachine image wouldnt you be able to make use of that kernel variable and systemd debug stuff you asked for finding the desired crash reports? then again: maybe this bug only happens when not using btrfs? i have never used btrfs in production. most my machines are in use over several generations of opensuse versions. maybe i can still do a clean 42.2, then dup it to 42.3 and dup it to 15.0 and see if i will eventually find this bug happening again all using btrfs from scratch 42.2