[Bug 84653] xorg segfault when disabling and reenabling kwin compositing with dri2 gpu offloading

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84653

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> ---
Created attachment 107403
  --> https://bugs.freedesktop.org/attachment.cgi?id=107403&action=edit
Unredirect me!

It looks like a use-after-free of the redirected scanout pixmap. Notably we
never receive the callback to unhook it. I think the clue is that you are
driving pipe=1 (i.e. the second CRTC).

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