gistfile1.txt

using Sundials

function test1()
  yS0 = [1. 2. 3.; 4. 5 6]
  N, Ns = size(yS0)

  GC.@preserve yS0n = [Sundials.NVector(yS0[:,j]) for j=1:Ns] # array of julia wrappers
  GC.@preserve yS0nv = [Sundials.N_Vector(n) for n in yS0n]   # array of pointers to sund. structs
  pyS0  = pointer(yS0nv)

  @show ps = unsafe_wrap(Array, pyS0, Ns)
  @show a  = Sundials.asarray(ps[1])
end

this segfaults

adding a @show in front of line 8 makes it run through...