[Bug 101266] segfault in libvdpau_radeonsi.so.1.0.0 when opening certain videos

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101266

            Bug ID: 101266
           Summary: segfault in libvdpau_radeonsi.so.1.0.0 when opening
                    certain videos
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: nsane457 at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 131631
  --> https://bugs.freedesktop.org/attachment.cgi?id=131631&action=edit
gdb output of `run` and `thread apply all backtrace full`

When opening certain videos in vlc, I end up with a segfault in
libvdpau_radeonsi.so.1.0.0.  This has been going on for some time so I
eventually decided to rebuild all relevant packages with debugging flags for a
good backtrace.


Output of `uname --all`:

> Linux Home-PC 4.11.2-gentoo-r1 #2 SMP Tue May 23 00:27:39 EDT 2017 x86_64 Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz GenuineIntel GNU/Linux

Output of `glxinfo -B`:


> name of display: :0
> display: :0  screen: 0
> direct rendering: Yes
> Extended renderer info (GLX_MESA_query_renderer):
>     Vendor: X.Org (0x1002)
>     Device: AMD BONAIRE (DRM 2.49.0 / 4.11.2-gentoo-r1, LLVM 4.0.0) (0x6658)
>     Version: 17.2.0
>     Accelerated: yes
>     Video memory: 2048MB
>     Unified memory: no
>     Preferred profile: core (0x1)
>     Max core profile version: 4.5
>     Max compat profile version: 3.0
>     Max GLES1 profile version: 1.1
>     Max GLES[23] profile version: 3.1
> OpenGL vendor string: X.Org
> OpenGL renderer string: Gallium 0.4 on AMD BONAIRE (DRM 2.49.0 / 4.11.2-gentoo-r1, LLVM 4.0.0)
> OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.2.0-devel (git-f42fb0012a)
> OpenGL core profile shading language version string: 4.50
> OpenGL core profile context flags: (none)
> OpenGL core profile profile mask: core profile
> 
> OpenGL version string: 3.0 Mesa 17.2.0-devel (git-f42fb0012a)
> OpenGL shading language version string: 1.30
> OpenGL context flags: (none)
> 
> OpenGL ES profile version string: OpenGL ES 3.1 Mesa 17.2.0-devel (git-f42fb0012a)
> OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10

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