| 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).
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