debugging PariError: not enough memory on freebsd

[dimpase]

On freebsd 11.1 and sage 8.2.rc2, (built with the default compiler (clang 4), I see many errors like

File "src/sage/rings/number_field/number_field.py", line 1520, in sage.rings.number_field.number_field.NumberField_generic.construction
Failed example:
    K.<a,b,c>=NumberField([x^3+x^2+1,x^2+1,x^7+x+1])
Exception raised:
    Traceback (most recent call last):
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/doctest/forker.py", line 551, in _run
        self.compile_and_execute(example, compiler, test.globs)
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/doctest/forker.py", line 961, in compile_and_execute
        exec(compiled, globs)
      File "<doctest sage.rings.number_field.number_field.NumberField_generic.construction[10]>", line 1, in <module>
        K = NumberField([x**Integer(3)+x**Integer(2)+Integer(1),x**Integer(2)+Integer(1),x**Integer(7)+x+Integer(1)], names=('a', 'b', 'c',)); (a, b, c,) = K._first_ngens(3)
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/rings/number_field/number_field_rel.py", line 505, in _first_ngens
        v += tuple(map(self, self.base_field()._first_ngens(n - 1)))
      File "sage/structure/parent.pyx", line 920, in sage.structure.parent.Parent.__call__ (build/cythonized/sage/structure/parent.c:9734)
        return mor._call_(x)
      File "sage/structure/coerce_maps.pyx", line 145, in sage.structure.coerce_maps.DefaultConvertMap_unique._call_ (build/cythonized/sage/structure/coerce_maps.c:4555)
        raise
      File "sage/structure/coerce_maps.pyx", line 140, in sage.structure.coerce_maps.DefaultConvertMap_unique._call_ (build/cythonized/sage/structure/coerce_maps.c:4423)
        return C._element_constructor(x)
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/rings/number_field/number_field_rel.py", line 1061, in _element_constructor_
        return NumberField_generic._element_constructor_(self, x, check=check)
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/rings/number_field/number_field.py", line 1658, in _element_constructor_
        return self._coerce_from_other_number_field(x)
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/rings/number_field/number_field_rel.py", line 816, in _coerce_from_other_number_field
        return self.__base_inclusion(x)
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/rings/number_field/number_field_rel.py", line 1106, in __base_inclusion
        zk, czk = self._pari_nfzk()
      File "sage/misc/cachefunc.pyx", line 2377, in sage.misc.cachefunc.CachedMethodCallerNoArgs.__call__ (build/cythonized/sage/misc/cachefunc.c:13430)
        self.cache = f(self._instance)
      File "/usr/home/dima/Sage/sage/local/lib/python2.7/site-packages/sage/rings/number_field/number_field_rel.py", line 1521, in _pari_nfzk
        return self._pari_base_nf()._nf_nfzk(self._pari_rnfeq())
      File "cypari2/gen.pyx", line 4025, in cypari2.gen.Gen._nf_nfzk
      File "cypari2/handle_error.pyx", line 196, in cypari2.handle_error._pari_err_handle
    PariError: not enough memory

However, building cypari with SAGE_CHECK=yes succeeds. Have I run into an untested part of cypari2, or it's actually not a problem with it?

[jdemeyer]

I don't think this is related to cypari2. Can you run the code under strace (does that exist for FreeBSD?)