okay, sry the bug still occurs just far less frequently (1 out of 100 or so). As stated above i am now using /bin/bash as login shell but i still cannot submit a crash file.
This time an unhandled exception occurs in the apport log (/var/log/apport.log) so the segfault in the dmesg was gnome-shell[1493]: segfault at 20 ip 00007fe7ecafeb17 sp 00007fff5e70ba60 error 4 in libmutter-2.so.0.0.0[7fe7eca11000+156000] but the pid 1493 was not found by apport: ERROR: apport (pid 5733) Mon May 28 14:48:22 2018: Unhandled exception: Traceback (most recent call last): File "/usr/share/apport/apport", line 451, in <module> get_pid_info(pid) File "/usr/share/apport/apport", line 68, in get_pid_info pidstat = os.stat('/proc/%s/stat' % pid) FileNotFoundError: [Errno 2] No such file or directory: '/proc/1493/stat' -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1772638 Title: Segfault in libmutter-2.so after suspend/resume using wayland. Core files are always truncated and invalid while the default shell is zsh. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1772638/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs