Donor T Cells, Low-Dose Aldesleukin, and Low-Dose GM-CSF After Donor Stem Cell Transplant in Treating Patients With Relapsed or Refractory Non-Hodgkin's Lymphoma

RATIONALE: Giving high doses of chemotherapy before a donor stem cell transplant helps stop the growth of cancer cells. It also stops the patient's immune system from rejecting the donor's stem cells. Colony stimulating factors, such as aldesleukin and GM-CSF, may increase the number of immune cells found in bone marrow or peripheral blood and may help the immune system recover from the side effects of chemotherapy. The donated stem cells may replace the patient's immune cells and help destroy any remaining cancer cells (graft-versus-tumor effect). Giving an infusion of the donor's T cells that have been treated with antibodies after the transplant may help increase this effect. Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving tacrolimus and mycophenolate mofetil after transplant may stop this from happening. PURPOSE: This phase I trial is studying the side effects and best dose of donor T cells given together with low-dose aldesleukin and low-dose GM-CSF after donor stem cell transplant in treating patients with relapsed or refractory non-Hodgkin's lymphoma.