https://bugs.freedesktop.org/show_bug.cgi?id=64695
--- Comment #3 from Brian Paul brianp@vmware.com --- Created attachment 81345 --> https://bugs.freedesktop.org/attachment.cgi?id=81345&action=edit Improved error handling for post-process code
I don't know if this patch will help with your issue, but please give it a try.