* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #1 from Mauro Rossi <issor.oruam@gmail.com> ---
Created attachment 125387
--> https://bugs.freedesktop.org/attachment.cgi?id=125387&action=edit
dmesg for uniform_iterations#conditional_continue_fragment FAIL
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
2016-07-28 22:57 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #2 from Mauro Rossi <issor.oruam@gmail.com> ---
Created attachment 125388
--> https://bugs.freedesktop.org/attachment.cgi?id=125388&action=edit
dmesg for uniform_iterations#double_continue_vertex FAIL
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
2016-07-28 22:57 ` bugzilla-daemon
2016-07-28 23:00 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #3 from Mauro Rossi <issor.oruam@gmail.com> ---
Created attachment 125389
--> https://bugs.freedesktop.org/attachment.cgi?id=125389&action=edit
dmesg for uniform_iterations#double_continue_fragment FAIL
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #4 from Nicolai Hähnle <nhaehnle@gmail.com> ---
Hi Mauro, thanks for the report - sounds like a control flow lowering bug.
Note that the 'nosb' option will have no effect, it applies to r600 only.
Which version of LLVM are you using? glxinfo shows this. Does the lockup happen
with LLVM trunk?
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #5 from Mauro Rossi <issor.oruam@gmail.com> ---
Hi,
llvm version used in android marshmallow-x86 is 3.7.0 (preceding the R600 to
AMDGPU target renaming).
On android my options are currently limited to backporting latest patches on
top llvm 3.7.0 or trying upgrade to latest llvm 3.7.x doing some AMDGPU target
porting of android makefiles.
>'nosb' option will have no effect, it applies to r600 only
Are there other options that could help to workaround the issue
or for debugging purposes?
I'll check if some control flow lowering bug was reported,
in order to apply the relevant changes, do you know
In order to try latest llvm, I will move to linux test run,
by using chadversary fork and report about GLES2 results
Mauro
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #6 from Mauro Rossi <issor.oruam@gmail.com> ---
the missing part of a sentence:
> do you know
if similar GPU lockup bugs may be related and how?
Mauro
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #7 from Nicolai Hähnle <nhaehnle@gmail.com> ---
I'm sorry, but LLVM 3.7 is extremely old. I'd say you're mostly out of luck.
There have been huge changes to how control flow lowering works, and I'd say
trying to cherry-pick individual fixes is basically a hopeless endeavour.
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
Nicolai Hähnle <nhaehnle@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |WORKSFORME
--- Comment #8 from Nicolai Hähnle <nhaehnle@gmail.com> ---
I have verified that the tests pass on current Mesa + LLVM master.
I would seriously recommend that you somehow upgrade the version of LLVM you
use with the driver.
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* [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups
2016-07-28 22:54 [Bug 97122] list of 12 dEQP-GLES2 tests causing systematic GPU lockups bugzilla-daemon
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2016-08-02 17:41 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97122
--- Comment #9 from Mauro Rossi <issor.oruam@gmail.com> ---
Hi Nicolai,
thanks a lot for your commitment and help.
Now I also learned how to run deqp on linux
I confirm that with the llvm 3.8.1 and later I see no GPU lockups.
Being oibaf ppa not affected, the resolution happened between 3.8.0 and 3.8.1
and has to be related to SI lowering, that's a lot of useful info for my
problem.
Cheers!
Mauro
Test Sessions:
--------------
cmake . -DDEQP_TARGET=x11_egl
make
cd ./modules/gles2
./deqp-gles2 -n dEQP-GLES2.functional.shaders.loops.*
Test Session 1: padoka ppa (mesa 12.1 and llvm 4.0.0)
---------------------------------------------------
utente@utente-desktop:~$ glxinfo | grep Mesa
client glx vendor string: Mesa Project and SGI
OpenGL core profile version string: 4.2 (Core Profile) Mesa 12.1.0-devel -
padoka PPA
OpenGL version string: 3.0 Mesa 12.1.0-devel - padoka PPA
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 12.1.0-devel - padoka PPA
utente@utente-desktop:~$ glxinfo | grep LLVM
Device: AMD TAHITI (DRM 2.43.0 / 4.4.0-31-generic, LLVM 4.0.0) (0x679a)
OpenGL renderer string: Gallium 0.4 on AMD TAHITI (DRM 2.43.0 /
4.4.0-31-generic, LLVM 4.0.0)
Result: dEQP-GLES2.functional.shaders.loops.* 100% ok and no GPU lockups
DONE!
Test run totals:
Passed: 624/624 (100.0%)
Failed: 0/624 (0.0%)
Not supported: 0/624 (0.0%)
Warnings: 0/624 (0.0%)
Test Session 2: oibaf ppa (mesa 12.1 and llvm 3.8.1)
--------------------------------------------------
utente@utente-desktop:~$ glxinfo | grep Mesa
client glx vendor string: Mesa Project and SGI
OpenGL core profile version string: 4.1 (Core Profile) Mesa 12.1.0-devel
OpenGL version string: 3.0 Mesa 12.1.0-devel
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 12.1.0-devel
utente@utente-desktop:~$ glxinfo | grep LLVM
Device: AMD TAHITI (DRM 2.43.0 / 4.4.0-31-generic, LLVM 3.8.1) (0x679a)
OpenGL renderer string: Gallium 0.4 on AMD TAHITI (DRM 2.43.0 /
4.4.0-31-generic, LLVM 3.8.1)
Result: dEQP-GLES2.functional.shaders.loops.* are 100% ok and no GPU lockups
DONE!
Test run totals:
Passed: 624/624 (100.0%)
Failed: 0/624 (0.0%)
Not supported: 0/624 (0.0%)
Warnings: 0/624 (0.0%)
Test Session 3: default Ubuntu 16.04 (mesa 11.2 and llvm 3.8.0)
-------------------------------------------------------------
utente@utente-desktop:~$ glxinfo | grep Mesa
client glx vendor string: Mesa Project and SGI
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.2.0
OpenGL version string: 3.0 Mesa 11.2.0
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.0
utente@utente-desktop:~$ glxinfo | grep LLVM
Device: AMD TAHITI (DRM 2.43.0, LLVM 3.8.0) (0x679a)
OpenGL renderer string: Gallium 0.4 on AMD TAHITI (DRM 2.43.0, LLVM 3.8.0)
Result: Full screen artifacts and GPU lockup, but clearly llvm version related
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