[Bug 110608] [bisected][18.3.3 regression] Nouveau on Wayland fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110608

            Bug ID: 110608
           Summary: [bisected][18.3.3 regression] Nouveau on Wayland fails
           Product: Mesa
           Version: 18.3
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: glsl-compiler
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: mbakke at fastmail.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Greetings,

After updating from Mesa 18.3.1 to 18.3.5, swaywm no longer starts on my
nouveau Nvidia GTX 770.

Sway prints the following error:

sway: ../mesa-18.3.5/src/mesa/program/prog_parameter.c:247:
_mesa_add_parameter: Assertion `0 < size && size <=4' failed.

I bisected it down to this commit:
https://gitlab.freedesktop.org/mesa/mesa/commit/fb78a6cb72270de271f75d6f6c9b5ebadba7a898

However, reverting that on top of my distro-provided Mesa 18.3.5 still yields
the same error.

Mesa 19.0.3 fails with a different message:

sway: ../mesa-19.0.3/src/compiler/glsl/serialize.cpp:555: void
read_uniforms(blob_reader*, gl_shader_program*): Assertion `vec_size +
prog->data->UniformStorage[i].storage <= data +
prog->data->NumUniformDataSlots' failed.

Please let me know what other details I can provide.  Thanks in advance!

This is possibly a duplicate of #109812.

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