Re: Easily reproducible stable/13 kernel crash

Hi,

Also need to update tcp_var.h:

diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c
index dff7767cd9c..33bc0549165 100644
--- a/sys/netinet/tcp_subr.c
+++ b/sys/netinet/tcp_subr.c
@@ -1234,6 +1234,10 @@ tcp_init(void)
         tcp_inp_lro_wokeup_queue = counter_u64_alloc(M_WAITOK);
         tcp_inp_lro_compressed = counter_u64_alloc(M_WAITOK);
         tcp_inp_lro_locks_taken = counter_u64_alloc(M_WAITOK);
+       tcp_extra_mbuf = counter_u64_alloc(M_WAITOK);
+       tcp_would_have_but = counter_u64_alloc(M_WAITOK);
+       tcp_comp_total = counter_u64_alloc(M_WAITOK);
+       tcp_uncomp_total = counter_u64_alloc(M_WAITOK);
  #ifdef TCPPCAP
         tcp_pcap_init();
  #endif
diff --git a/sys/netinet/tcp_var.h b/sys/netinet/tcp_var.h
index c9b337b3c3d..049aa0cc7b0 100644
--- a/sys/netinet/tcp_var.h
+++ b/sys/netinet/tcp_var.h
@@ -984,6 +984,10 @@ extern counter_u64_t tcp_inp_lro_direct_queue;
  extern counter_u64_t tcp_inp_lro_wokeup_queue;
  extern counter_u64_t tcp_inp_lro_compressed;
  extern counter_u64_t tcp_inp_lro_locks_taken;
+extern counter_u64_t tcp_extra_mbuf;
+extern counter_u64_t tcp_would_have_but;
+extern counter_u64_t tcp_comp_total;
+extern counter_u64_t tcp_uncomp_total;

  #ifdef NETFLIX_EXP_DETECTION
  /* Various SACK attack thresholds */