Comment # 1 on bug 1215361 from Neil Rickert

Well, this is really weird.

I have been using GDM for login, and using KDE as desktop environment.

To test something else, I switched to SDDM.  When I login to KDE using SDDM, it
seems that "uptime" works perfectly.  So I switched back to GDM, and now it
dumps core again.  That's an unexpected weird interaction.

I should have mentioned in the initial report, that "uptime" is from the
package "coreutils-systemd".  I also tried "who" and "users" from that package,
and they also dumped core.  I did not retry those with SDDM.