[Bug 104159] llvm 6.0svn: GPU fault/hang with r319975

[Bug 104159] llvm 6.0svn: GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

            Bug ID: 104159
           Summary: llvm 6.0svn: GPU fault/hang with r319975
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: haagch@frickel.club
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 136030
  --> https://bugs.freedesktop.org/attachment.cgi?id=136030&action=edit
dmesg

RX 480, mesa master.
I only tried 4.15-rc2 with DC and drm-next-4.16 with DC and it happens on both.

With llvm 319975 (and 320007) I get a GPU hang every time I start firefox
nightly (in X).
With llvm 319882 it works fine.

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[Bug 104159] llvm 6.0svn: GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

--- Comment #1 from Lorenzo Bona <lorenz.bona@gmail.com> ---
I can confirm this bug on svn320332 too.

I'm using vanilla kernel.

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[Bug 104159] llvm 6.0svn: firefox GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

Christoph Haag <haagch@frickel.club> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|llvm 6.0svn: GPU fault/hang |llvm 6.0svn: firefox GPU
                   |with r319975                |fault/hang with r319975

--- Comment #2 from Christoph Haag <haagch@frickel.club> ---
Vega broke around the same time.
https://bugs.freedesktop.org/show_bug.cgi?id=104192
"llvm-svn revision 320250 gives me the freezes meanwhile, 317901 doesnt."

It could be a different bug though.

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[Bug 104159] llvm 6.0svn: firefox GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

--- Comment #3 from Michel Dänzer <michel@daenzer.net> ---
FWIW, I bisected some piglit regressions to LLVM SVN r319894.

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[Bug 104159] llvm 6.0svn: firefox GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

Tom Englund <tomenglund26@gmail.com> changed:

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

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[Bug 104159] llvm 6.0svn: firefox GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

Tom Englund <tomenglund26@gmail.com> changed:

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

--- Comment #4 from Tom Englund <tomenglund26@gmail.com> ---
sorry had wrong bug, open and changed it to resolved.

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[Bug 104159] llvm 6.0svn: firefox GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

Christoph Haag <haagch@frickel.club> changed:

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

--- Comment #5 from Christoph Haag <haagch@frickel.club> ---
But it is fixed with new LLVM. Most likely it was the same issue.

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[Bug 104159] llvm 6.0svn: firefox GPU fault/hang with r319975

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https://bugs.freedesktop.org/show_bug.cgi?id=104159

--- Comment #6 from Christoph Haag <haagch@frickel.club> ---
Created attachment 136167
  --> https://bugs.freedesktop.org/attachment.cgi?id=136167&action=edit
dmesg

Oops, just got a hang again with newer llvm.

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