From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 80876] New: luxrays/slg4 hangs GPU (CEDAR)
Date: Thu, 03 Jul 2014 22:06:38 +0000
Message-ID:
Priority
medium
Bug ID
80876
Assignee
dri-devel@lists.freedesktop.org
Summary
luxrays/slg4 hangs GPU (CEDAR)
Severity
normal
Classification
Unclassified
OS
Linux (All)
Reporter
awatry@gmail.com
Hardware
x86-64 (AMD64)
Status
NEW
Version
git
Component
Drivers/Gallium/r600
Product
Mesa
Created attachment 102222 [details]
luxrays diff/patch to disable image support while reproducing bug.
While working on getting the Luxrays slg4 program running (which is invoked as
part of the luxmark CL-based raytracing benchmark), I encountered some GPU
hangs on the evergreen card I'm using (CEDAR, Radeon 5400-series).
Hardware:
Core i7-2600k
16GB DDR3
Radeon 5400-series PCI express w/ dual 1080p monitors
Software:
Mesa: Git master
LLVM: 3.5svn
drm: fairly recent git
libclc: git master + a few extra patches to implement missing built-ins
luxrays: From http://src.luxrender.net/luxrays, with the attached patch.
Steps:
1) Checkout luxrays source from the mercurial repository
2) Apply patch to disable image support in the renderer
3) Build luxrays from source (cmake).
4) run bin/slg4
5) Watch the UI start to pop-up and the GPU reset.
dmesg, kernel source, llvm bitcode to be attached. rlockup_*.c cs trace
available as a 35MB gzipped C file (>300MB uncompressed).