I'm running Ubuntu 16.04.5 LTS amd64 with 4.4.0-140-generic Linux kernel.
After one of recent upgrades I got new unexpected behavior - when I
- select Safely remove drive in Caja
- click Power off the disk button in GNOME Disks
for my USB 3.0 external drive - the Ubuntu system freezes without any error messages. I can loose unsaved documents and other personal data.
Why this happens? How should I fix this problem?