RecruitingPhase 1Drug trialVorinostat in Combination With Chemotherapy in Relapsed/Refractory Solid Tumors and CNS MalignanciesInvestigators are testing new experimental drug combinations such as the combination of vorinostat, vincristine, irinotecan, and temozolomide in the hopes of finding a drug that may be effective against tumors that have come back or that have not responded to standard therapy. The goals of this study are: * To find the highest safe dose of vorinostat that can be given together with vincristine, irinotecan, and temozolomide without causing severe side effects; * To learn what kind of side effects this four drug combination can cause; * To learn about the effects of vorinostat and the combination of vorinostat, vincristine, irinotecan, and temozolomide on specific molecules in tumor cells; * To determine whether the combination of vorinosat, vincristine, irinotecan, and temozolomide is a beneficial treatment.