Comment # 48 on bug 110214 from Diego Viola

Created attachment 143834 [details]
Xephyr.trace

Here is an apitrace to reproduce the bug, I used this:

export MESA_EXTENSION_OVERRIDE="-GL_ARB_buffer_storage"
apitrace trace /usr/bin/Xephyr -glamor :1 -screen 1024x768

As described here: https://github.com/apitrace/apitrace/wiki/Glamor

I can replay it with either of those commands:

eglretrace -w Xephyr.trace

or

glretrace -w Xephyr.trace

This was iive's suggestion (thanks).