[Bug 220444] x11-servers/xorg-server crashes on attempt to play a video using VDPAU

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220444

--- Comment #3 from Mikhail Teterin <mi at FreeBSD.org> ---
Created attachment 184035
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=184035&action=edit
Backtrace with debug information

The crash is right here -- one of the methods (createImageFromFds) is NULL:

(gdb) frame 12
#12 0x0000000806fc9882 in gbm_dri_bo_import (gbm=0x804049600, type=21763, 
    buffer=0x7fffffffe828, usage=0) at backends/dri/gbm_dri.c:921
921           image = dri->image->createImageFromFds(dri->screen,
(gdb) p dri->image
$1 = (const __DRIimageExtension *) 0x808a5f7a0
(gdb) p *dri->image
$2 = {base = {name = 0x808713f2f "DRI_IMAGE", version = 12}, 
  createImageFromName = 0x8083c0260, 
  createImageFromRenderbuffer = 0x8083c0310, destroyImage = 0x8083c0320, 
  createImage = 0x8083c0360, queryImage = 0x8083c04c0, dupImage = 0x8083c0680, 
  validateUsage = 0x8083c06d0, createImageFromNames = 0x8083c06e0, 
  fromPlanar = 0x8083c0860, createImageFromTexture = 0x8083c08f0, 
  createImageFromFds = 0x0, createImageFromDmaBufs = 0x0, 
  blitImage = 0x8083c0aa0, getCapabilities = 0x8083c0c50, 
  mapImage = 0x8083c0c70, unmapImage = 0x8083c0d00, 
  createImageWithModifiers = 0x0}

I'll keep the core around -- in case you need me to poke at any other
variables...

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