[issue25653] ctypes+callbacks+fork+selinux = crash

[Armin Rigo]

Armin Rigo added the comment:

For completeness:

* the crasher I attached gets a bus error even before calling
  ffi_closure_free().  At that point, only ffi_closure_alloc() has been
  called---in both parent and child.

* stricly speaking, cffi is not fixed: it has the same problem when
  using callbacks like ctypes.  What Christian talks about is an 
  alternative API that we came up with.  It requires the user code to be
  slightly different, and is only available if using a C compiler is
  acceptable; it is not available in the ctypes-like mode.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25653>
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