10.3/allow-ptrace-attach-1.diff

Allow PID 1 to be ptrace(2)d.

diff -ru --exclude-from freebsd-src-diff-exclude-names /var/tmp/freebsd-src/usr/src/sys/kern/init_main.c freebsd-10.3/usr/src/sys/kern/init_main.c
--- /var/tmp/freebsd-src/usr/src/sys/kern/init_main.c	2016-03-25 09:09:26.000000000 +0800
+++ freebsd-10.3/usr/src/sys/kern/init_main.c	2018-11-05 19:30:33.703793203 +0800
@@ -833,7 +833,7 @@
 	newcred = crget();
 	sx_xlock(&proctree_lock);
 	PROC_LOCK(initproc);
-	initproc->p_flag |= P_SYSTEM | P_INMEM;
+	initproc->p_flag |= P_INMEM;
 	initproc->p_treeflag |= P_TREE_REAPER;
 	LIST_INSERT_HEAD(&initproc->p_reaplist, &proc0, p_reapsibling);
 	oldcred = initproc->p_ucred;