Exception: STATUS_ACCESS_VIOLATION at rip=00180043471 rax=000000097FE5A410 rbx=00000001802A60C0 rcx=00000001801CD300 rdx=00000000FFF70000 rsi=000006FFFFF70000 rdi=0000000000000001 r8 =000000000022A8A8 r9 =0000000000000000 r10=0000000000000000 r11=0000000000000206 r12=0000000000090000 r13=FFFFFFFFFFF70000 r14=00000001802A60E0 r15=000006FFFFF70000 rbp=0000000000000000 rsp=000000000022A880 program=E:\cygwin64\tmp\mmaptest64.exe, pid 1124, thread main cs=0033 ds=002B es=002B fs=0053 gs=002B ss=002B Stack trace: Frame Function Args 00000000000 00180043471 (00000040202, 0000022AA20, 00000000030, 00000004022) 00000000000 001800C6338 (00180161BCA, 00000000000, 0018006A22E, 000FFFFFFFF) 0000022AAF0 001801114BB (00000000000, 0018006A22E, 000FFFFFFFF, 00000000000) 0000022AAF0 04949435341 (0018006A22E, 000FFFFFFFF, 00000000000, 001802E19D8) 0000022AAF0 00180161BCA (001800473E0, 00000000000, 00000000000, 001802E10C8) 0000022AB80 001800481FA (00000000000, 00000000000, 00000000000, 00000000000) 00000000000 0018004611B (00000000000, 00000000000, 00000000000, 00000000000) 00000000000 0018004627E (00000000000, 00000000000, 00000000000, 00000000000) 00000000000 001004012B1 (00000000000, 00000000000, 00000000000, 00000000000) 00000000000 00100401010 (00000000000, 00000000000, 00000000000, 00000000000) 00000000000 00076B2652D (00000000000, 00000000000, 00000000000, 00076BA9300) 00000000000 00076EAC541 (00000000000, 00000000000, 00000000000, 00076BA9300) End of stack trace