Won't boot. udevd: worker not accepting message.

[linux guy]

I double checked dmesg and found a complaint about /dev/sdb1.  I
pulled it and now I'm getting a different error altogether.

I think the hard drive controller is failing.

During boot it hangs on

Started monitoring of LVM2 mirrors, snapshots, etc using dmeventd or
progress polling.

After a few minutes, it says

Starting Relabel all filesystems, if necessary aborted because a
dependency failed.
Starting Mark the need to relabel after reboot aborted because a
dependency failed.
Welcome to emergency mode...

Opinions ?