[Bug 99544] GL and VDPAU hangs on r600 (HD7650M)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99544

            Bug ID: 99544
           Summary: GL and VDPAU hangs on r600 (HD7650M)
           Product: Mesa
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: dbaryshkov at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 129155
  --> https://bugs.freedesktop.org/attachment.cgi?id=129155&action=edit
GL application backtrace (Shenzhen I/O)

I'm observing random GL and VDPAU hangs on my HD7650M card. The application
will hang in graphics thread, but otherwise system stability is not impaired.
Suck lockups happen both in windowed mode (e.g. google chrome) and in
fullscreen mode (games). Lockups are more frequent when app is running with
higher resolution.
dmesg doesn't contain any messages from GPU. According to backtraces (see
attachments) both GL and VDPAU hang in dri2 code (DRI2GetBuffersWithFormat and
vl_dri2_screen_texture_from_drawable).

uname -a

Linux forlindon 4.9.0-1-amd64 #1 SMP Debian 4.9.2-2 (2017-01-12) x86_64
GNU/Linux

$ dpkg -l | grep libgl1
ii  libgl1-mesa-dev:amd64                                            13.0.3-1  
                          amd64        free implementation of the OpenGL API --
GLX development files
ii  libgl1-mesa-dri:amd64                                            13.0.3-1  
                          amd64        free implementation of the OpenGL API --
DRI modules
ii  libgl1-mesa-dri:i386                                             13.0.3-1  
                          i386         free implementation of the OpenGL API --
DRI modules
ii  libgl1-mesa-dri-dbgsym:amd64                                     13.0.3-1  
                          amd64        Debug symbols for libgl1-mesa-dri
ii  libgl1-mesa-dri-dbgsym:i386                                      13.0.3-1  
                          i386         Debug symbols for libgl1-mesa-dri
ii  libgl1-mesa-glx:amd64                                            13.0.3-1  
                          amd64        free implementation of the OpenGL API --
GLX runtime
ii  libgl1-mesa-glx:i386                                             13.0.3-1  
                          i386         free implementation of the OpenGL API --
GLX runtime
ii  libgl1-mesa-glx-dbgsym:amd64                                     13.0.3-1  
                          amd64        Debug symbols for libgl1-mesa-glx
ii  libgl1-mesa-glx-dbgsym:i386                                      13.0.3-1  
                          i386         Debug symbols for libgl1-mesa-glx

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