Package: pari

Version:�2.6.2 (development 15281-15d6bae)

Priority: wishlist

I encountered a situation where sumpos() overflows a clean 1.6 GB stack given a function decreasing like x^2. I have not used gdb but I suspect this is a memory leak.

> allocatemem(1600<<20)

� *** � Warning: new stack size = 1677721600 (1600.000 Mbytes).

> sumpos(n=1,-log(cos(1/n)))

� *** � at top-level: sumpos(n=1,-log(cos(1/n)))

� *** � � � � � � � � � � � � � � � � ^----------

� *** cos: the PARI stack overflows !

� current stack size: 1677721600 (1600.000 Mbytes)

� [hint] you can increase GP stack with allocatemem()

� *** � Break loop: type 'break' to go back to GP prompt

Charles Greathouse
Analyst/Programmer
Case Western Reserve University