HEAD segfaults in memory manager

Stacktrace: NTDLL.DLL!7789bbbd() NTDLL.DLL!778c953e() MSVCRTD.DLL!_heap_alloc_base(unsigned int size=3452816992) Line 200 C MSVCRTD.DLL!_heap_alloc_dbg(unsigned int nSize=3452816944, int nBlockUse=1, const char * szFileName=0x10325024, int nLine=145) Line 378 + 0x9 C MSVCRTD.DLL!_nh_malloc_dbg(unsigned int nSize=3452816944, int nhFlag=0, int nBlockUse=1, const char * szFileName=0x10325024, int nLine=145) Line 248 + 0x15 C MSVCRTD.DLL!_malloc_dbg(unsigned int nSize=3452816944, int nBlockUse=1, const char * szFileName=0x10325024, int nLine=145) Line 165 + 0x1b C php4ts_debug.dll!zend_mm_add_memory_block() Line 145 + 0x1e C php4ts_debug.dll!zend_mm_alloc() Line 238 + 0x10 C php4ts_debug.dll!zend_mm_alloc() Line 242 + 0xd C ... Reproducing script: Not small enough to be of use, trying to reduce it.