https://bugs.freedesktop.org/show_bug.cgi?id=73528
--- Comment #41 from MWATTT <megwattt at gmail.com> --- I'm able to reproduce the bug (with commit 97ec2c694fe568e375ec7a2b85c1acb1e4666b54 reverted) with a small program after viewing a minecraft apitrace. Apparently, if 2 textures are attached to a fbo (as GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1), GL_COLOR_ATTACHMENT1 is cleared and after that glDrawBuffers(2, {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1}) is called, but the shader of the following drawing command doesn't write anything in the second buffer (GL_COLOR_ATTACHMENT1), then it will hang. I've attached a small code which reproduce the hang. -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20150730/f3c1e889/attachment-0001.html>