From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 101484] [regression, bisected] Steam fails to render content, if mesa is compiled with -O2 -march=haswell Date: Sat, 08 Jul 2017 16:17:00 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1718459448==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 27F036E10F for ; Sat, 8 Jul 2017 16:17:00 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1718459448== Content-Type: multipart/alternative; boundary="14995306201.Bf402F4.17985"; charset="UTF-8" --14995306201.Bf402F4.17985 Date: Sat, 8 Jul 2017 16:17:00 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D101484 --- Comment #13 from Gregor M=C3=BCnch --- Ive tested now some instructions enabled by Haswell according to: https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gcc/x86-Options.html#x86-Options 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. --=20 You are receiving this mail because: You are the assignee for the bug.= --14995306201.Bf402F4.17985 Date: Sat, 8 Jul 2017 16:17:00 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comme= nt # 13 on bug 10148= 4 from Gregor M=C3=BCnch 
Ive tested now some instructions enabled by Haswell according =
to:
https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gcc/x86-Options.html#x8=
6-Options

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.

You are receiving this mail because:
  • You are the assignee for the bug.
= --14995306201.Bf402F4.17985-- --===============1718459448== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============1718459448==--