__NR_writev       150 arch/x86/include/generated/uapi/asm/unistd_32.h #define __NR_writev 146
__NR_writev        24 arch/x86/include/generated/uapi/asm/unistd_64.h #define __NR_writev 20
__NR_writev       286 arch/x86/include/generated/uapi/asm/unistd_x32.h #define __NR_writev (__X32_SYSCALL_BIT + 516)