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  • #515

Closed
Open
Opened Sep 18, 2019 by Bugzilla Migration User@bugzilla-migration

luxrays/slg4 hangs GPU (CEDAR)

Submitted by Aaron Watry @awatry

Assigned to Default DRI bug account

Link to original bug (#80876)

Description

Created attachment 102222 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).

Attachment 102222, "luxrays diff/patch to disable image support while reproducing bug.":
luxrays.patch

Version: git

Blocking

  • Bug 99553
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information
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Reference: mesa/mesa#515