Created attachment 1356104 [details]
stacktrace of gnome-shell crash.
Description of problem:
I run Fedora 26 on a Lenovo Thinkpad W541. I ran a "dnf update" last Friday (2017-11-17) and after the update I could not login with any Gnome choice: Gnome, Gnome Classic, or Gnome on X11 - after a couple of burps on the display, it would return to the login prompt. I installed the cinnamon desktop and was able to log in with that.
It turns out that gnome-shell crashes in FcConfigEvaluate - see attached stacktrace.
Version-Release number of selected component (if applicable):
fontconfig.x86_64 2.12.6-4.fc26 @updates
Steps to Reproduce:
1. dnf update
Churn a bit and then return to the login screen.
try with debuginfo please. that stacktrace isn't quite useful.
I updated to F27 and can no longer reproduce this. Might as well close it.
Not reproducible on F27, therefore closing this.