vlib: fix cli process stack overflow

Some cli processes, including bringing up an i40e interface with dpdk,
consume more than the currently available stack space.

Type: fix
Fixes: VPP-1774
Signed-off-by: Aloys Augustin <aloaugus@cisco.com>
Change-Id: I86ceb9e6e07523d5e0f760b5922467f09a8d4006
(cherry picked from commit 735d2e202b6d68059049a233b0a870ec3713564d)

src/vlib/unix/cli.c

@@ -2864,7 +2864,7 @@ unix_cli_file_add (unix_cli_main_t * cm, char *name, int fd)
       static vlib_node_registration_t r = {
 	.function = unix_cli_process,
 	.type = VLIB_NODE_TYPE_PROCESS,
-	.process_log2_n_stack_bytes = 16,
+	.process_log2_n_stack_bytes = 17,
       };
 
       r.name = name;