| Summary: | [BSW]Piglit/spec/nv_conditional_render/dlist fails intermittently | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | lu hua <huax.lu> |
| Component: | Drivers/DRI/i965 | Assignee: | Neil Roberts <nroberts> |
| Status: | RESOLVED FIXED | QA Contact: | Intel 3D Bugs Mailing List <intel-3d-bugs> |
| Severity: | normal | ||
| Priority: | medium | CC: | christophe.prigent |
| Version: | git | ||
| Hardware: | All | ||
| OS: | Linux (All) | ||
| URL: | http://patchwork.freedesktop.org/patch/57758/ | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
Is this caused by 426023050d1d3cd1b5fc0b3508dd7e1ee3b061e7? (In reply to Kenneth Graunke from comment #1) > Is this caused by 426023050d1d3cd1b5fc0b3508dd7e1ee3b061e7? Test this commit 10 cycles, it works well. commit 6817e0f1ce71d2a6d347d4c182f2cf4742dd5deb Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Aug 21 15:28:22 2015 +0100 i965: Move control flush into pipelined conditional render The nv_conditional_render piglits were sporadically failing. Moving the control flush from the write and placing it just before the read was sufficient to make the piglits pass a 1000/1000 times. The bspec says that the flush enable bit "waits until all previous writes of immediate data from post sync circles are complete before executing the next command" - the operative word being previous! Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90691 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Neil Roberts <neil@linux.intel.com> Cc: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> |
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System Environment: -------------------------- Platform: BSW Libdrm: (master)libdrm-2.4.61-4-gfde4969176822fe54197b6baa78f8b0ef900baba Mesa: (master)2b8c51834bcc34a70dec9b470a28c0ef972d6993 Xserver: (master)xorg-server-1.17.0-156-g806470b9f623089dc81b985f250f0c3a4e8edbe8 Xf86_video_intel:(master)2.99.917-312-ga6dd2655cb41000943e554ccea16e5781bcbf012 Libva: (master)4763db1c2133d4e6b92355938ecb6f23a7767b6b Libva_intel_driver:(master)4a1c4d21f3428b08ef765d7f7de75b97006514ac Kernel: (drm-intel-nightly)5267b96e584de7aa76434cc9fefad61169664c2f Bug detailed description: ----------------------------- It intermittently fails on BSW with mesa master and 10.6 branch, fail rate:2/5. Run 10 cycles on 10.5 branch(commit ea0d1f575c214c09ba3df12644a960e86e031766), it works well. spec@nv_conditional_render@vertex_array also has this issue. output: root@x-bsw06:/GFX/Test/Piglit/piglit# bin/nv_conditional_render-dlist -auto libGL: OpenDriver: trying /opt/X11R7/lib/dri/tls/i965_dri.so libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so libGL: Using DRI2 for screen 0 Probe color at (0,0) Expected: 0.000000 1.000000 0.000000 0.000000 Observed: 1.000000 0.000000 0.000000 0.000000 PIGLIT: {"result": "fail" } root@x-bsw06:/GFX/Test/Piglit/piglit# bin/nv_conditional_render-dlist -auto libGL: OpenDriver: trying /opt/X11R7/lib/dri/tls/i965_dri.so libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so libGL: Using DRI2 for screen 0 PIGLIT: {"result": "pass" } root@x-bsw06:/GFX/Test/Piglit/piglit# bin/nv_conditional_render-dlist -auto libGL: OpenDriver: trying /opt/X11R7/lib/dri/tls/i965_dri.so libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so libGL: Using DRI2 for screen 0 Probe color at (0,0) Expected: 0.000000 1.000000 0.000000 0.000000 Observed: 1.000000 0.000000 0.000000 0.000000 PIGLIT: {"result": "fail" } root@x-bsw06:/GFX/Test/Piglit/piglit# bin/nv_conditional_render-dlist -auto libGL: OpenDriver: trying /opt/X11R7/lib/dri/tls/i965_dri.so libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so libGL: Using DRI2 for screen 0 PIGLIT: {"result": "pass" } root@x-bsw06:/GFX/Test/Piglit/piglit# bin/nv_conditional_render-dlist -auto libGL: OpenDriver: trying /opt/X11R7/lib/dri/tls/i965_dri.so libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so libGL: Using DRI2 for screen 0 PIGLIT: {"result": "pass" } Reproduce steps: ---------------------------- 1. xinit 2. bin/nv_conditional_render-dlist -auto