Comment 50 for bug 1861941

I'm having similar issues to this bug and those described by Dmitrii in https://bugs.launchpad.net/charm-ceph-osd/+bug/1883585 specifically comment #2 and the last comment.

It appears that if I run 'udevadm trigger --subsystem-match=block', I get my by-dname devices for bcaches, but if I run udevadm trigger w/out a subsystem match, something is triggering later than the block subsystem that is removing the links.

Here are the runs with --verbose to show what appears to be getting probed on each run:

https://pastebin.ubuntu.com/p/VPvSKRfGt4/

This is with 5.3.0-62 kernel on Bionic.

I also have core and canonical-livepatch snaps installed as did the environment where Dmitrii has run into this.