...not permitted. An internal shared memory filesystem is used for System V shared memory ( shmget (2)) and shared anonymous mappings ( mmap (2) with the MAP_SHARED and MAP_ANONYMO…...ocations without holding the CAP_IPC_LOCK capability; see memfd_create (2), mmap (2), and shmget (2). /proc/sys/vm/legacy_va_layout (since Linux 2.6.9) If nonzero, this disables…...reated, but never attached, upon termination of the process that created the segment with shmget (2). Setting this file to 1 provides a way of ensuring that all System V shared …