 Recurrent gliomas Arm A will be treated according to the Jefferson protocol for re-irradiation, 10 fractions each of 3.5Gy delivered over 2 weeks. Panobinostat will be administered orally three times a week for 2 weeks, starting on the day of 1st fraction of radiation. High-grade meningiomas Arm A will be treated with 6 weeks30 fractions of fractionated radiation therapy, to a total dose of between 54 Gy and 60 Gy in fractions of either 1.8Gy or 2Gy. Panobinostat will be administered orally three times a week for 2 weeks, starting on the day of 1st fraction of radiation. 