From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 66349] Using SB shader optimization caused segfault in Serious Sam 3: BFE Date: Fri, 05 Jul 2013 18:22:12 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0433377040==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 2ED96E5C36 for ; Fri, 5 Jul 2013 11:22:12 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0433377040== Content-Type: multipart/alternative; boundary="1373048531.8087F2e60.25773"; charset="us-ascii" --1373048531.8087F2e60.25773 Date: Fri, 5 Jul 2013 18:22:11 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=66349 --- Comment #4 from Thomas Lindroth --- I did some more debugging and it looks like memory corruption. I can reproduce the problem with an apitrace dump but when using an --enable-debug build it runs fine. It always segfaults in a call to glDrawRangeElements. I had the same problem with Dungeon Defenders before. See comment 2 in bug 62967. It would always segfault at some random glDrawRangeElements call unrelated to SB and corrupt the stack. If I try to play back the sam3 trace with LIBGL_ALWAYS_SOFTWARE=yes it will instead abort with the error "LLVM ERROR: Program used external function '' which could not be resolved!" during a call to glDrawRangeElements. The full sam3 trace is 231M if you want it. I tried to trim it but the trimmed version would result in an floating point exception in some other gl call. I'm using latest git mesa but my setup is a bit odd. I run 64-bit gentoo but the default 32-bit libs in gentoo are precompiled older versions. I work around that problem by having a 32-bit gentoo chroot with git mesa, libdrm and other libs games use. I run 32-bit apps like this LIBGL_DRIVERS_PATH=/mnt/32bit/usr/lib/dri LD_LIBRARY_PATH="/mnt/32bit/lib:/mnt/32bit/usr/lib" ./steam.sh -- You are receiving this mail because: You are the assignee for the bug. --1373048531.8087F2e60.25773 Date: Fri, 5 Jul 2013 18:22:11 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 4 on bug 66349 from 
I did some more debugging and it looks like memory corruption. I can reproduce
the problem with an apitrace dump but when using an --enable-debug build it
runs fine. It always segfaults in a call to glDrawRangeElements. I had the same
problem with Dungeon Defenders before. See comment 2 in bug 62967. It would
always segfault at some random glDrawRangeElements call unrelated to SB and
corrupt the stack. If I try to play back the sam3 trace with
LIBGL_ALWAYS_SOFTWARE=yes it will instead abort with the error "LLVM ERROR:
Program used external function '' which could not be resolved!" during a call
to glDrawRangeElements.

The full sam3 trace is 231M if you want it. I tried to trim it but the trimmed
version would result in an floating point exception in some other gl call.

I'm using latest git mesa but my setup is a bit odd. I run 64-bit gentoo but
the default 32-bit libs in gentoo are precompiled older versions. I work around
that problem by having a 32-bit gentoo chroot with git mesa, libdrm and other
libs games use. I run 32-bit apps like this
LIBGL_DRIVERS_PATH=/mnt/32bit/usr/lib/dri
LD_LIBRARY_PATH="/mnt/32bit/lib:/mnt/32bit/usr/lib" ./steam.sh

You are receiving this mail because:
  • You are the assignee for the bug.
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