[Bug 99555] LIBGL_ALWAYS_INDIRECT=1 causes all opengl programms to crash on second frame

[Bug 99555] LIBGL_ALWAYS_INDIRECT=1 causes all opengl programms to crash on second frame

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99555

            Bug ID: 99555
           Summary: LIBGL_ALWAYS_INDIRECT=1 causes all opengl programms to
                    crash on second frame
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: diplosarus@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

LIBGL_ALWAYS_INDIRECT=1 glxgears 
fails on latest git on r600 with:

X Error of failed request:  255
  Major opcode of failed request:  155 (GLX)
  Minor opcode of failed request:  1 (X_GLXRender)
  Serial number of failed request:  42
  Current serial number in output stream:  164

After rendering one frame. this is on a ATI HD5850. This is 100% repeatable and
occures with every opengl app. Direct Rendering works fine. 

Indirect rendering works with the vesa x11 driver and llvmpipe. xf86-video-ati
versus xf86-video-modestetting both fail.

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[Bug 99555] LIBGL_ALWAYS_INDIRECT=1 causes all opengl programms to crash on second frame

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99555

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|Mesa                        |xorg
         QA Contact|dri-devel@lists.freedesktop |xorg-team@lists.x.org
                   |.org                        |
           Assignee|dri-devel@lists.freedesktop |xorg-team@lists.x.org
                   |.org                        |
          Component|Drivers/Gallium/r600        |Server/Ext/GLX

--- Comment #1 from Michel Dänzer <michel@daenzer.net> ---
This code in __glXForceCurrent:

    if (cx->wait && (*cx->wait) (cx, cl, error))
        return NULL;

calls DRI2WaitSwap, which returns TRUE because there is a pending swap. I
suspect something to deal with this went missing at a higher level at some
point.

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