<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_VERIFIED bz_closed" title="VERIFIED NOTOURBUG - Regression: GLB 2.7 & Glmark-2 GLES versions segfault due to linker precision error (259fc505) on dead variable" href="https://bugs.freedesktop.org/show_bug.cgi?id=97532#c31">Comment # 31</a> on <a class="bz_bug_link bz_status_VERIFIED bz_closed" title="VERIFIED NOTOURBUG - Regression: GLB 2.7 & Glmark-2 GLES versions segfault due to linker precision error (259fc505) on dead variable" href="https://bugs.freedesktop.org/show_bug.cgi?id=97532">bug 97532</a> from <a class="email" href="mailto:tfiga@chromium.org" title="Tomasz Figa <tfiga@chromium.org>"> Tomasz Figa</a> <pre>(In reply to Eero Tamminen from <a href="show_bug.cgi?id=97532#c30">comment #30</a>) > (In reply to Tomasz Figa from <a href="show_bug.cgi?id=97532#c29">comment #29</a>) > > This is also affecting Forge of Empires on Android. With Kenneth's patch and > > the drirc option enabled for <application name="Default"> the game starts > > working again. > > IMHO it would be good the check whether the problem is just with a dead > variable, or is there a real functional issue with the shader. > [...] > > Or dump & inspect the shader code directly. I have a full trace captured with GAPID, which includes shaders code. Can't share here due to potential legal issues, but I can share my observations: - vertex shader starts with "precision highp float", - fragment shader starts with "precision mediump float", - both shaders define "uniform mat4 M1" after that, - both shaders define "uniform mat4 M2" after that, - "M1" is not used in either of the shaders, - "M2" is used only in vertex shader, - the link fails with "error: declarations for uniform `M1` have mismatching precision qualifiers"</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>