[Bug 92173] [regression, bisected] commit 266d05a broke WebGL-Water Caustics on NI/Turks (6670)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92173

            Bug ID: 92173
           Summary: [regression, bisected] commit 266d05a broke
                    WebGL-Water Caustics on NI/Turks (6670)
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: Dieter at nuetzel-hh.de
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 118509
  --> https://bugs.freedesktop.org/attachment.cgi?id=118509&action=edit
WebGL-Water with broken caustics

WebGL-Water show broken or NO Caustics on NI/Turks (6670) since commit 266d05a.
Sometimes GPU hangs and/or slow down badly.

git revert 266d05a
Works again.

git bisect show this:
/opt/mesa> git bisect bad
266d05a3a0651ac954c91aea12c870940e8a9820 is the first bad commit
commit 266d05a3a0651ac954c91aea12c870940e8a9820
Author: Tapani Pälli <tapani.palli at intel.com>
Date:   Fri Sep 25 09:56:39 2015 +0300

    glsl: fix packed varyings interface type and add default case

    fixes Piglit test:
       arb_program_interface_query/linker/query-varyings.shader_test

    Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
    Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>

:040000 040000 4ab4878fd41868c4b674c13f833b82d089ce971f
d8ef9c2c4746a610989e7dfe24552d044e914a9b M src

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