<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [regression, bisected] Steam fails to render content, if mesa is compiled with -O2 -march=haswell" href="https://bugs.freedesktop.org/show_bug.cgi?id=101484#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [regression, bisected] Steam fails to render content, if mesa is compiled with -O2 -march=haswell" href="https://bugs.freedesktop.org/show_bug.cgi?id=101484">bug 101484</a> from <a class="email" href="mailto:gr.muench@gmail.com" title="Gregor Münch <gr.muench@gmail.com>"> Gregor Münch</a> <pre>Ive tested now some instructions enabled by Haswell according to: <a href="https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gcc/x86-Options.html#x86-Options">https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gcc/x86-Options.html#x86-Options</a> And found the culprit with: -mbmi Setting this and compiling mesa, corrupts Steam interface and also graphs ingame enabled with Gallium_hud. Since the instruction is also used on AMD since Piledriver, it would interesting to see if those CPUs are effected as well.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>