https://bugs.freedesktop.org/show_bug.cgi?id=97894
--- Comment #1 from James Legg jlegg@feralinteractive.com --- Created attachment 126725 --> https://bugs.freedesktop.org/attachment.cgi?id=126725&action=edit Valgrind output when replaying trace
Valgrind reports a use after free error when the unmap occurs.