D30336.id89425.diff
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	Index: usr.bin/protect/protect.1
	===================================================================
	--- usr.bin/protect/protect.1
	+++ usr.bin/protect/protect.1
	@@ -25,7 +25,7 @@
	.\"
	.\" $FreeBSD$
	.\"
	-.Dd September 19, 2013
	+.Dd May 18, 2021
	.Dt PROTECT 1
	.Os
	.Sh NAME
	@@ -68,6 +68,11 @@
	or
	.Fl g
	flags may be specified when adjusting the state of existing processes.
	+.Pp
	+Daemons can be protected on startup using
	+.Ao Ar name Ac Ns Va _oomprotect
	+option from
	+.Xr rc.conf 5 .
	.Sh EXIT STATUS
	.Ex -std
	.Sh EXAMPLES
	@@ -82,8 +87,30 @@
	Remove protection from all current and future processes:
	.Pp
	.Dl "protect -cdi -p 1"
	+.Pp
	+Using
	+.Xr ps 1
	+check if protect has been applied to the process:
	+.Pp
	+.Dl "ps -O flags,flags2 -p 64430"
	+.Pp
	+.Dl " PID F F2 TT STAT TIME COMMAND"
	+.Dl "64430 10104002 00000001 5 S+ 0:00.00 ./main"
	+.Dl " ^P ^PI"
	+.Pp
	+In the bove example
	+.Nm P
	+points at the protected flag and
	+.Nm PI
	+points at the iheritance flag. The process is protected if
	+.Nm P
	+bit is set to 1. All children of this process will also be protected if
	+.Nm PI
	+bit is set to 1.
	.Sh SEE ALSO
	.Xr procctl 2
	+.Xr ps 1
	+.Xr rc.conf 5
	.Sh BUGS
	If you protect a runaway process that allocates all memory the system will
	deadlock.