Created attachment 119058 [details] dmesg with GPU_HANG Software versions: 4.2.0-1-generic OpenGL version string: 3.0 Mesa 11.1.0-devel (git-13a5805) GPU hardware: OpenGL renderer string: Mesa DRI Intel(R) Haswell Desktop 00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) CPU hardware: x86_64 Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz CTS version: git@67ae88f31295 command: ./glcts --deqp-case=ES31-CTS.compute_shader* Environment: Mesa built with: --enable-debug export MESA_GLES_VERSION_OVERRIDE=3.1 export MESA_EXTENSION_OVERRIDE=GL_ARB_compute_shader ---------------------------------------------- When running all the compute shader test of the OpenGL ES 3.1 CTS, execution stops after 3 or for test with: "intel_do_flush_locked failed: Input/output error" dmesg shows: [drm] GPU HANG: ecode 7:0:0x8fd8ffff, in glcts [23876], reason: Ring hung, action: reset This is not reproducible when the tests are run alone. The issue is not reproducible on Gen8+.
This should be fixed by the kernel commit: commit 7b9748cb513a6bef4af87b79f0da3ff7e8b56cd8 Author: Jordan Justen <jordan.l.justen@intel.com> Date: Thu Oct 1 23:09:58 2015 -0700 drm/i915: Add GEN7_GPGPU_DISPATCHDIMX/Y/Z to the register whitelist which is currently in: drm-intel/drm-intel-next drm-intel/drm-intel-next-fixes drm-intel/drm-intel-next-queued drm-intel/drm-intel-nightly drm-intel/drm-intel-testing drm-intel/for-linux-next The symptom can be hidden by disabling the command parser: echo "0" | sudo tee /sys/module/i915/parameters/enable_cmd_parser Or, on the kernel command line: i915.enable_cmd_parser=0
Thanks Jordan! I confirm that the issue is not reproducible with kernel drm-intel/drm-intel-next git@aed8bb. So, we will get this in 4.4 then, great!
The problem is not reproducible with kernel commit: 7b9748cb513a6bef4af87b79f0da3ff7e8b56cd8
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