__NR_sendmsg       50 arch/x86/include/generated/uapi/asm/unistd_64.h #define __NR_sendmsg 46
__NR_sendmsg      288 arch/x86/include/generated/uapi/asm/unistd_x32.h #define __NR_sendmsg (__X32_SYSCALL_BIT + 518)