Description of problem: systemd is throwing error to logs about an IO error removing userspace processes since upgrade to 5.5.2-200.fc31 Version-Release number of selected component (if applicable): 243.6-1.fc31 How reproducible: every boot Steps to Reproduce: 1. Participate in kernel test day and install 5.5.2-200 kernel 2. Note in `journalctl -k` the message above Actual results: Couldn't move remaining userspace processes, ignoring: Input/output error Expected results: A normal boot. Additional info: External issue in github against systemd (linked)
I think this should be re-assigned to the kernel folks, as the issue is in the kernel, not systemd, see https://github.com/systemd/systemd/issues/14682#issuecomment-580339777 and https://lore.kernel.org/lkml/20200130164717.GE180576@mtj.thefacebook.com/.
*** This bug has been marked as a duplicate of bug 1800003 ***