diff -up src/sage/libs/pari/pari_instance.pxd.orig src/sage/libs/pari/pari_instance.pxd
--- src/sage/libs/pari/pari_instance.pxd.orig	2014-11-18 15:25:03.591127791 -0200
+++ src/sage/libs/pari/pari_instance.pxd	2014-11-18 15:25:18.999127995 -0200
@@ -6,6 +6,10 @@ cimport cython
 
 from sage.libs.pari.gen cimport gen
 
+cdef extern from "gmp.h":
+    cdef void mp_get_memory_functions(void**, void**, void**)
+    cdef void mp_set_memory_functions(void*, void*, void*)
+
 cpdef long prec_bits_to_words(unsigned long prec_in_bits)
 
 @cython.final
diff -up src/sage/libs/pari/pari_instance.pyx.orig src/sage/libs/pari/pari_instance.pyx
--- src/sage/libs/pari/pari_instance.pyx.orig	2014-11-18 15:25:16.287127959 -0200
+++ src/sage/libs/pari/pari_instance.pyx	2014-11-18 15:25:19.000127995 -0200
@@ -437,7 +437,12 @@ cdef class PariInstance(sage.structure.p
         # The size here doesn't really matter, because we will allocate
         # our own stack anyway. We ask PARI not to set up signal and
         # error handlers.
+        cdef void *_gmp_malloc
+        cdef void *_gmp_realloc
+        cdef void *_gmp_free
+        mp_get_memory_functions(&_gmp_malloc, &_gmp_realloc, &_gmp_free)
         pari_init_opts(10000, maxprime, INIT_DFTm)
+        mp_set_memory_functions(_gmp_malloc, _gmp_realloc, _gmp_free)
 
         _pari_init_error_handling()