tcp_error_log 732 net/netfilter/nf_conntrack_proto_tcp.c tcp_error_log(skb, state, "truncated packet"); tcp_error_log 744 net/netfilter/nf_conntrack_proto_tcp.c tcp_error_log(skb, state, "bad checksum"); tcp_error_log 751 net/netfilter/nf_conntrack_proto_tcp.c tcp_error_log(skb, state, "invalid tcp flag combination");