Our guess is that the 8.0.1 patch solved these crashes for the general
case, but there are corner cases.  The aforementioned links indicate
that this crash happens when compiz renders to a large texture.  If that
is true, it would mean that this bug can be reproduced only on systems
with large extended monitors or similar configurations with very high
total resolution allocations.  Something like that.

Also, sounds like this issue is believed to affect only sandybridge /
ironlake, although I don't have that confirmed and can't tell from the
dupes.  (Unfortunately the unity apport hook doesn't attach hardware
info, grr...)

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https://bugs.launchpad.net/bugs/926379

Title:
  compiz crashed with SIGSEGV in intel_miptree_release() (Needs
  mesa-8.0.1)

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