<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - GPU Hang with single-channel RAM configuration" href="https://bugs.freedesktop.org/show_bug.cgi?id=105064#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - GPU Hang with single-channel RAM configuration" href="https://bugs.freedesktop.org/show_bug.cgi?id=105064">bug 105064</a> from <a class="email" href="mailto:vadym.shovkoplias@globallogic.com" title="vadym <vadym.shovkoplias@globallogic.com>"> vadym</a> <pre>I tested this on two available platforms: Haswell and Kabylake. For Haswell I did 3 full piglit runs and didn't reproduce any GPU hangs (4.15.3-041503-generic was used for testing). But for Kabylake with the same 4.15.3 kernel I got following error (100% reproducible): fail: spec/glsl-1.20/execution/uniform-initializer/fs-mat2-array running: spec/glsl-1.20/execution/uniform-initializer/vs-mat3-set-by-api running: spec/glsl-1.20/execution/uniform-initializer/fs-bool-from-const Traceback (most recent call last):3, warn: 2, fail: 70, crash: 3 -||/ File "/home/vadym/mesa/piglit_original/piglit/framework/test/base.py", line 205, in execute self.run() File "/home/vadym/mesa/piglit_original/piglit/framework/test/base.py", line 279, in run self._run_command() File "/home/vadym/mesa/piglit_original/piglit/framework/test/base.py", line 357, in _run_command Traceback (most recent call last): File "/home/vadym/mesa/piglit_original/piglit/framework/test/base.py", line 205, in execute self.run() File "/home/vadym/mesa/piglit_original/piglit/framework/test/base.py", line 279, in run raise e self._run_command() File "/home/vadym/mesa/piglit_original/piglit/framework/test/base.py", line 357, in _run_command OSError: [Errno 12] Cannot allocate memory raise e OSError: [Errno 12] Cannot allocate memory fail: spec/glsl-1.20/execution/uniform-initializer/vs-mat3-set-by-api fail: spec/glsl-1.20/execution/uniform-initializer/fs-bool-from-const running: spec/glsl-1.20/execution/uniform-initializer/fs-float-set-by-other-stage running: spec/glsl-1.20/execution/uniform-initializer/fs-mat4 Killed/54272] skip: 178, pass: 5853, warn: 2, fail: 72, crash: 3 -|-\| I noticed that at this point no free memory are available on my laptop (~16 GB are allocated).I'm getting this error with the swap area disabled. But with the swap area enabled Linux is completely hangs and only reset can help. With the kernel 4.9 this issue is not reproducible. Kabylake configs: Platform: Lenovo YOGA 520 CPU: Intel® Core™ i7-8550U CPU @ 1.80GHz × 8 GPU: Intel® UHD Graphics 620 (Kabylake GT2) RAM: 16GB OS: Ubuntu 16.04 LTS 64-bit Mesa: 18.1.0-devel (git-fa901768a4) Kernel: 4.15.3-041503-generic Piglit: git-4210d072f</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>