ac area is accountable
nr swap space is not reserved for the area
ht area uses huge tlb pages
+ sf synchronous page fault
ar architecture specific flag
+ wf wipe on fork
dd do not include area into core dump
sd soft dirty flag
mm mixed map area
mg mergable advise flag
bt arm64 BTI guarded page
mt arm64 MTE allocation tags are enabled
+ um userfaultfd missing tracking
+ uw userfaultfd wr-protect tracking
== =======================================
Note that there is no guarantee that every flag and associated mnemonic will