Hi Larkin--

On Mon, Dec 18, 2017 at 9:37 AM, Larkin Lowrey
[off-list ref] wrote:

I'm noticing that, with Fedora, dracut is trying to stop the mdraid devices
before bcache stops.

I haven't seen any data loss or corruption so this doesn't seem to be a
problem but it would be nice to have bcache stop first so I don't get so
alarmed by these messages.

Well, plus, it'd be nice to properly stop md, else there's a chance
you end up scrubbing volumes when you don't need to, etc.

How is the shutdown sequence for bcache controlled? Where can I find the
relevant code?

All of that, unfortunately, is details maintained by your
distribution.  And this is a tricky problem-- note some people build
md-on-bcache instead of bcache-on-md (I prefer the latter), and the
shutdown order would be correct for the former.

Mike