FILE: net/netfilter/x_tables.c

===============================
[ INFO: suspicious RCU usage. ]
Call Trace:
 [<ffffffff81c8f6cd>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81c8f6cd>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81614578>] warn_alloc+0x208/0x230 mm/page_alloc.c:2850
 [<ffffffff816d0915>] __vmalloc_area_node_memcg mm/vmalloc.c:1647 [inline]
 [<ffffffff816d0915>] __vmalloc_node_range_memcg+0x375/0x670 mm/vmalloc.c:1690
 [<ffffffff816d0c79>] __vmalloc_node_memcg mm/vmalloc.c:1751 [inline]
 [<ffffffff816d0c79>] __vmalloc_node_memcg_flags mm/vmalloc.c:1788 [inline]
 [<ffffffff816d0c79>] vmalloc+0x69/0x70 mm/vmalloc.c:1803
 [<ffffffff8279a0b0>] xt_alloc_table_info+0xd0/0x100 net/netfilter/x_tables.c:952
 [<ffffffff829a50bc>] do_replace net/ipv4/netfilter/ip_tables.c:1140 [inline]
 [<ffffffff829a50bc>] do_ipt_set_ctl+0x21c/0x430 net/ipv4/netfilter/ip_tables.c:1687
 [<ffffffff827436ac>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline]