tree 4865d26d87910e162217450f09815600268f294c
parent 8ff0ee5419a304297889e78e4d30357cef77c4ce
author Vernon Mauery <vernon.mauery@linux.intel.com> 1525993583 -0700
committer Adriana Kobylak <anoo@linux.ibm.com> 1527108512 +0000

Double fork to release child to be reaped by init

If a task forks, it must clean up after its dead children or the system
will have zombie tasks that will ultimately be reparented to init, but
only after the parent dies.

Cleanup can be done in a variety of ways: waitpid, ignoring SIGCHLD, or
forking twice and allowing the grandchild to be reparented to init and
calling waitpid on the child.

Change-Id: Ic48ea583b37e065da34aa4acfd74b6e1b1c2d04f
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>