[systemd-devel] more verbose debug info than systemd.log_level=debug?

[Chris Murphy]

Any thoughts on this?

I've followed these instructions:
https://freedesktop.org/wiki/Software/systemd/Debugging/
Shutdown Completes Eventually

However, no additional information is being logged that gives any
answer to why there are three remount ro attempts, and why they aren't
succeeding.

https://github.com/systemd/systemd/blob/master/src/core/umount.c
line 409

This suggests three ro attempts shouldn't happen. And then 413 says
that / won't actually get umounted, reboot happens leaving it ro
mounted. So the "All filesystems unmounted." doesn't tell us anything;
but it does seem like there should be a way to expose exit code for
umount. I'm just not sure how to do it, and if that means compiling
systemd myself.

-- 
Chris Murphy