Public bug reported:

Since my upgrade to ubuntu 17.10 (and therefore usage of gnome-shell
instead of unity), I have regular crashes of gnome-shell where I return
to the login screen. I don't have a reproduction scenario, it appears to
happen at random times, sometimes multiple times a day when some other
days everything is fine.

Everytime, I have this line in my kern.log : 
Dec 13 15:48:23 plw-fr-troche kernel: [22168.253619] gnome-shell[16768]: 
segfault at 7fdafa227114 ip 00007fdbb5943bb1 sp 00007ffdc85c7d80 error 7 in 
libst-1.0.so[7fdbb5925000+4b000]

The segfault always refers to libst.

I work as a developer and tend to use some applications that take quite
a lot of memory.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.2-0ubuntu0.1
ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13
Uname: Linux 4.13.0-19-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.6
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Dec 13 15:49:10 2017
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2016-08-24 (476 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to artful on 2017-11-03 (40 days ago)

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug artful wayland-session

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https://bugs.launchpad.net/bugs/1737993

Title:
  Gnome-shell segfault and returns to login screen

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