[Bug 84207] [SNB+ Regression]igt/gem_render_copy_redux sporadically cause system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84207

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hmm, that shows no signs of poisoning, so I think we can rule out a double-free
of the i915_mm_struct. Could you gdb vmlinux (it will be in the root directory
of your build tree) and "list * mmu_notifier_unregister+0x18"

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