Re: Easily reproducible stable/13 kernel crash

From: Hans Petter Selasky <hps_at_selasky.org>
Date: Fri, 11 Jun 2021 13:32:07 UTC
Hi,

This patch should fix it:

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


--HPS