System Environment: -------------------------- Arch: x86_64 Platform: Piketon Libdrm: (master)2.4.26 Mesa: (master)da8b4c07986e202b0596b729a5eec31c9aec5fcc Xserver: (master)xorg-server-1.10.99.901-29-g02d11af01211da55e9d93fe0e1851a0c6fe57472 Xf86_video_intel: (master)2.15.0-53-g021209d5d3add8b28143611cfad4c5481a2945a3 Kernel_unstable: (drm-intel-next)da3cc9202697a44057c1bd3ad685689375f1fe0c Bug detailed description: ------------------------- It crashed on Ironlake and sandybirdge. Bisect shows 2abc8ca is the first bad commit. Below cases also crashed due to this commit. piglit spec/EXT_packed_depth_stencil/fbo-depth-GL_DEPTH24_STENCIL8 Ogles2conform GL2ExtensionTests/packed_depth_stencil/packed_depth_stencil.test gdb shows: Breakpoint 1 at 0x7ffff6392a0d: file ../intel/intel_batchbuffer.h, line 71 commit 2abc8cae87b4cd037ebde68b4b9a1d02254657df Author: Chad Versace <chad@chad-versace.us> AuthorDate: Mon May 23 13:48:28 2011 -0700 Commit: Chad Versace <chad@chad-versace.us> CommitDate: Wed Jun 8 10:06:39 2011 -0700 i965/brw: Emit state for hiz and separate stencil buffers When emitting 3DSTATE_DEPTH_BUFFER, also emit 3DSTATE_HIER_DEPTH_BUFFER if there is a hiz buffer. Ditto for 3DSTATE_STENCIL_BUFFER and a separate stencil buffer. Reproduce steps: ------------------------- 1. start X 2. fbo-blit-d24s8 -auto
Fixed by this commit. commit 97d230b0bcf8ed001f685ebac314fbd8e1955718 Author: Chad Versace <chad@chad-versace.us> Date: Fri Jun 10 10:27:54 2011 -0700 i965/brw: Fix emit_depthbuffer() when packed depth/stencil texture is attached If either depth or stencil buffer has packed depth/stencil format, then do not use separate stencil. Before this commit, emit_depthbuffer() incorrectly assumed that the texture's stencil renderbuffer wrapper was a *separate* stencil buffer, because the depth and stencil renderbuffer wrappers are distinct for depth/stencil textures (that is, depth_irb != stencil_irb). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38134 Signed-off-by: Chad Versace <chad@chad-versace.us>
Verified with Mesa master commit 77b7e1b58fcc4823b6b1f4fa4296c810db218f8a.
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