https://bugs.freedesktop.org/show_bug.cgi?id=91725
Bug ID: 91725 Summary: R600 asserts in sb_shed.c:251 during Shader Backend optimization pass. Product: Mesa Version: git Hardware: x86 (IA32) OS: All Status: NEW Severity: major Priority: medium Component: Drivers/Gallium/r600 Assignee: dri-devel@lists.freedesktop.org Reporter: ikalvachev@gmail.com QA Contact: dri-devel@lists.freedesktop.org
Created attachment 117861 --> https://bugs.freedesktop.org/attachment.cgi?id=117861&action=edit The shader causing the problem as TGSI and R600 bytecode. Created by Nine.
The exact error message is: sb/sb_sched.cpp:251:unreserve: Assertion `rp[cycle][chan] == sel && uc[cycle][chan]' failed.
It doesn't trigger if I replay with "R600_DEBUG=nobs". My hardware is Radeon HD5670 (Redwood).
I have attached part of the log created by "R600_DEBUG=vs,ps" containing the TGSI code and the unoptimized R600 bytecode.
The bug is reproduced by replaying d3d9 trace of the game "The Forest". The trace file has been uploaded to ixit ftp server. You need d3dretrace.exe (from apitrace compiled for windows) and wine. It is preferable is wine have ixit Nine patch and mesa-git with Nine enabled.
The bug is reproduced by both Nine state tracker and by the OpenGL one (when using vanilla wined3d opengl wrapper). Since the the OpenGL TGSI code is different, I'm attaching it too.
If you need more info, feel free to ask me.
https://bugs.freedesktop.org/show_bug.cgi?id=91725
--- Comment #1 from iive ikalvachev@gmail.com --- Created attachment 117862 --> https://bugs.freedesktop.org/attachment.cgi?id=117862&action=edit The shader causing the problem as TGSI and R600 bytecode. Created by OpenGL
https://bugs.freedesktop.org/show_bug.cgi?id=91725
Vadim Girlin vadimgirlin@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |glenn.kennard@gmail.com
--- Comment #2 from Vadim Girlin vadimgirlin@gmail.com --- Adding Glenn, hopefully he can solve this... Looks like he already knows more about that stuff than I remember about it.
https://bugs.freedesktop.org/show_bug.cgi?id=91725
--- Comment #3 from iive ikalvachev@gmail.com --- Created attachment 117875 --> https://bugs.freedesktop.org/attachment.cgi?id=117875&action=edit The shader causing the problem as original D3D code and TGSI created by Nine.
Since the shader is having some undefined values, there is a chance the original D3D shader is not entirely correct. That's why I've extracted it (NINE_DEBUG=shader NINE_TGSI_DUMP=1).
https://bugs.freedesktop.org/show_bug.cgi?id=91725
--- Comment #4 from Glenn Kennard glenn.kennard@gmail.com --- Commits 608c7b a83022 36f199 should fix the crashes in this trace
https://bugs.freedesktop.org/show_bug.cgi?id=91725
iive ikalvachev@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
--- Comment #5 from iive ikalvachev@gmail.com --- Yes, these commits fix all r600 issues in the sample. Don't forget to backport them to the stable branches.
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