Comment 5 for bug 911591

As original reporter stated, it usually appears related to OpenGL window resize events. I have also noted that xrandr display resolution changes can trigger the crash.

I see errors in dmesg that mention libmutter:

[15040.472843] gnome-shell[32127]: segfault at 8 ip 00007f327f29d5d0 sp 00007ffeccf94a38 error 4 in libmutter-1.so.0.0.0[7f327f243000+142000]