Bug#869746: runs under strace fine

[積丹尼 Dan Jacobson]

reassign 869746 libgl1
found 869746 0.2.999+git20170802-4

Hmmm, reading
https://bugzilla.gnome.org/page.cgi?id=traceparser/trace.html&trace_id=237739

and the libgl1 Description: Vendor neutral GL dispatch library -- legacy GL support
 This is an implementation of the vendor-neutral dispatch layer for arbitrating OpenGL API calls between multiple vendors on
 a per-screen basis.

this sounds indeed like the interprocess communication problem happening
here. So I'll reassign it once more...