(In reply to Michel Dänzer from comment #25)
> Just to make sure, you always restart the X server between building a Mesa
> commit and testing xterm against it, right? And you're making sure that the
> X server picks up your self-built radeonsi_dri.so for glamor?

Yes.

> 
> If so, since that commit doesn't seem to affect the xterm issue, let's
> assume for now that it's separate. Please file a new report about the GTK
> issue, also against radeonsi, with the information from git bisect.

OK.