System Environment: -------------------------- Arch: x86_64 Platform: Sandybridge Libdrm: (master)libdrm-2.4.38-3-g3163cfe4db925429760407e77140e2d595338bc2 Mesa: (8.0)889cc4d9225084e15b9e8d010e30b31a87dbfd2d Xserver:(server-1.12-branch)xorg-server-1.12.3.901 Xf86_video_intel:(master)2.20.3-35-g2f4de90709264ad19a3e3f5f0f79f4bba78a760a Libva: (master)44b03ffcdb814392a9acf025615f99a06fed63d4 Libva_intel_driver:(master)5a449f5d2608adaf29c4c052aa28687d9e80a37a Kernel: (drm-intel-fixes) 4344b813f105a19f793f1fd93ad775b784648b95 Bug detailed description: ----------------------------- It fails on ivybridge, sandybridge and ironlake with mesa 8.0 branch. It has Bug 49668 on mesa master branch. Following case also fail and have same bisect: spec_ARB_depth_buffer_float_fbo-clear-formats spec_ARB_depth_texture_fbo-clear-formats spec_EXT_packed_depth_stencil_fbo-clear-formats texturing_depthstencil-render-miplevels_1024_d=z16 texturing_depthstencil-render-miplevels_1024_d=z32f_s8 texturing_depthstencil-render-miplevels_146_d=z32f_s8 texturing_depthstencil-render-miplevels_292_d=z16 texturing_depthstencil-render-miplevels_585_d=z16 Bisect shows 24db6d63dab7cc8d3e5d4482b95d58e46113ba44 is the first bad commit. commit 24db6d63dab7cc8d3e5d4482b95d58e46113ba44 Author: Paul Berry <stereotype441@gmail.com> AuthorDate: Thu Apr 26 06:35:56 2012 -0700 Commit: Paul Berry <stereotype441@gmail.com> CommitDate: Sun Aug 5 08:17:51 2012 -0700 i965/Gen6: Work around GPU hangs due to misaligned depth coordinate offsets. In i965 Gen6, Mesa has for a long time used the "depth coordinate offset X/Y" settings (in 3DSTATE_DEPTH_BUFFER) to cause the GPU to render to miplevels other than 0. Unfortunately, this doesn't work, because these offsets must be aligned to multiples of 8, and miplevels in the depth buffer are only guaranteed to be aligned to multiples of 4. When the offsets aren't aligned to a multiple of 8, the GPU sometimes hangs. As a temporary measure, to avoid GPU hangs, this patch smashes the 3 LSB's of "depth coordinate offset X/Y" to 0. This results in incorrect rendering to mipmapped depth textures, but that seems like a reasonable stopgap while we figure out a better solution. (Note that we have only ever observed this GPU hang on Gen6 when HiZ is enabled, so another possible stopgap would be to disable HiZ). Avoids GPU hangs in piglit test "depthstencil-render-miplevels" at texture sizes that are not powers of 2. Reviewed-by: Chad Verace <chad.versace@linux.intel.com> Cherry-picked from a683012a80a3408b3b71f22b2a97d9eaaac11a46 Conflicts: src/mesa/drivers/dri/i965/brw_misc_state.c Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50271 Reproduce steps: ---------------------------- 1. start X 2. ./bin/fbo-depth-array -auto
Following cases also fail on ironlake with mesa 8.0 branch. bisect shows commit 24db6d63dab7cc8d3e5d4482b95d58e46113ba44 is the first bad commit. texturing_depthstencil-render-miplevels_1024_ds=z24_s8 texturing_depthstencil-render-miplevels_1024_ds=z32f_s8 texturing_depthstencil-render-miplevels_1024_d=z16 texturing_depthstencil-render-miplevels_1024_d=z24 texturing_depthstencil-render-miplevels_1024_d=z24_s8 texturing_depthstencil-render-miplevels_1024_d=z32f texturing_depthstencil-render-miplevels_1024_d=z32f_s8 texturing_depthstencil-render-miplevels_1024_s=z24_s8 texturing_depthstencil-render-miplevels_146_ds=z24_s8 texturing_depthstencil-render-miplevels_146_ds=z32f_s8 texturing_depthstencil-render-miplevels_146_d=z16 texturing_depthstencil-render-miplevels_146_d=z24 texturing_depthstencil-render-miplevels_146_d=z24_s8 texturing_depthstencil-render-miplevels_146_d=z32f texturing_depthstencil-render-miplevels_146_d=z32f_s8 texturing_depthstencil-render-miplevels_146_s=z24_s8 texturing_depthstencil-render-miplevels_292_ds=z24_s8 texturing_depthstencil-render-miplevels_292_ds=z32f_s8 texturing_depthstencil-render-miplevels_292_d=z16 texturing_depthstencil-render-miplevels_292_d=z24 texturing_depthstencil-render-miplevels_292_d=z24_s8 texturing_depthstencil-render-miplevels_292_d=z32f texturing_depthstencil-render-miplevels_292_d=z32f_s8 texturing_depthstencil-render-miplevels_292_s=z24_s8 texturing_depthstencil-render-miplevels_585_ds=z24_s8 texturing_depthstencil-render-miplevels_585_ds=z32f_s8 texturing_depthstencil-render-miplevels_585_d=z16 texturing_depthstencil-render-miplevels_585_d=z24 texturing_depthstencil-render-miplevels_585_d=z24_s8 texturing_depthstencil-render-miplevels_585_d=z32f texturing_depthstencil-render-miplevels_585_d=z32f_s8 texturing_depthstencil-render-miplevels_585_s=z24_s8
run: ./bin/fbo-depth-array -auto Output: Probe at (34,29) Expected: 0.200000 0.200000 0.200000 Observed: 0.000000 0.000000 0.000000 Probe at (100,29) Expected: 0.600000 0.600000 0.600000 Observed: 0.000000 0.000000 0.000000 Probe at (166,29) Expected: 1.000000 1.000000 1.000000 Observed: 0.000000 0.000000 0.000000 PIGLIT: {'result': 'fail' }
*** This bug has been marked as a duplicate of bug 50271 ***
I think it should be marked as dup with bug#49668 *** This bug has been marked as a duplicate of bug 49668 ***
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