[Bug 88745] [RADEONSI] [LLVM] [bisected] GPU hang when running Lightsmark

[Bug 88745] [RADEONSI] [LLVM] [bisected] GPU hang when running Lightsmark

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88745

            Bug ID: 88745
           Summary: [RADEONSI] [LLVM] [bisected] GPU hang when running
                    Lightsmark
           Product: Mesa
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: arek.rusi@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 112715
  --> https://bugs.freedesktop.org/attachment.cgi?id=112715&action=edit
dmesg log

GPU hang while running lightsmark (before "penumbra shadows", after "soft
shadows" test).

Befor llvm r222584 [R600/SI: Add an s_mov_b32 to patterns which use the
M0RegClass] problem disappear
llvm-3.5.1 & mesa-git@master works good. 


GPU: Cape Verde XT
ArchLinux x86_64
linux: 1.19rc5
libdrm-git: d2e0f55
mesa-git: 991d5cf (latest mesa didn't build against older llvm3.6svn revision
for me) 
ddx: 7.5.0
xorg: 1.6.3
llvm-svn: r221909 - r226904

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[Bug 88745] [RADEONSI] [LLVM] [bisected] GPU hang when running Lightsmark

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https://bugs.freedesktop.org/show_bug.cgi?id=88745

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tstellar@gmail.com

--- Comment #1 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Arek Ruśniak from comment #0)
> GPU hang while running lightsmark (before "penumbra shadows", after "soft
> shadows" test).
> 
> Befor llvm r222584 [R600/SI: Add an s_mov_b32 to patterns which use the
> M0RegClass] problem disappear

Tom, any ideas?

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[Bug 88745] [RADEONSI] [LLVM] [bisected] GPU hang when running Lightsmark

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https://bugs.freedesktop.org/show_bug.cgi?id=88745

--- Comment #2 from Tom Stellard <tstellar@gmail.com> ---
Could you set the environment variable R600_DEBUG=ps,vs,gs and post the dumps
for both good and bad behavior?

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[Bug 88745] [RADEONSI] [LLVM] [bisected] GPU hang when running Lightsmark

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https://bugs.freedesktop.org/show_bug.cgi?id=88745

--- Comment #3 from Arek Ruśniak <arek.rusi@gmail.com> ---
This is very strange things Tom. This morning i tried mesa-git 2397a72 &
llvm-svn r227384 without success. 
Now i've tried mesa-git 765cfe9 & llvm-svn r227463 and there is no gpu faults
anymore. 

I'll tried latest llvm-svn ASAP. 
If you need dumps still i'll do it. But problems are gone for now.

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[Bug 88745] [RADEONSI] [LLVM] [bisected] GPU hang when running Lightsmark

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https://bugs.freedesktop.org/show_bug.cgi?id=88745

--- Comment #4 from Arek Ruśniak <arek.rusi@gmail.com> ---
Latest mesa&llvm works for me too. 
I've tried also: unigine-[sanctuary/valley/tropics] & xonotic(and it looks like
everything goes faster about ~10%)

Unigine-heaven has a problem:
"LLVM ERROR: Not supported instr: <MCInst 2210 <MCOperand Reg:3171> <MCOperand
Imm:24> <MCOperand Reg:2044> <MCOperand Reg:74>>"

But i'll test it again tomorrow. And if things go wrong i'll fill a new bug.


thx.

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[Bug 88745] [RADEONSI] [LLVM] [bisected] GPU hang when running Lightsmark

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https://bugs.freedesktop.org/show_bug.cgi?id=88745

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Michel Dänzer <michel@daenzer.net> ---
Resolving per comment 4 (BTW, you can do this yourself :), thanks.

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