<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [KBL] portal2_linux GPU hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=104487#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [KBL] portal2_linux GPU hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=104487">bug 104487</a> from <a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> Kenneth Graunke</a> <pre>Actually, it looks like they've bound a R8G8B8A8_UNORM texture to a sampler2DShadow, and are calling shadow2D() call on it. Pretty sure this is supposed to return undefined results. We're translating it to a sample_c message, which has a restriction that the surface format needs to support shadow sampling. My guess is that if you combine that with CCS and HiZ somehow, it dies badly. Major kudos to Jason for noticing that. He gave me a hack that seems to fix it. We'll probably need to be properly defensive against this. Hopefully we should have a proper fix soon...</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>