[sr-dev] [kamailio/kamailio] Unexpected kamailio 5.4 segfault (#2828)

[nmateo26]

Dear all
we have seen a core in a running production kamailio instance today, i attach you the bt in dropbox
version: kamailio 5.4.4 (x86_64/linux) 0ddb01-dirty
centos7 3.10.0-693.17.1.el7.x86_64

https://www.dropbox.com/s/fpunfs0o9aqhwww/kamailio_core_17agosto.txt?dl=0

~~~
#0  0x00007f4c131446ad in print_lists (dlg=0x7f4b60abb2e8) at dlg_var.c:277
#1  0x00007f4c131467ff in pv_set_dlg_variable (msg=0x7f4c17592d70, param=0x7f4c17aa88d0, op=254, val=0x7ffc8de8c990) at dlg_var.c:443
#2  0x00000000004f9c82 in lval_pvar_assign (h=0x7ffc8de8ddc0, msg=0x7f4c17592d70, lv=0x7f4c17aa8998, rv=0x7f4c17aa8b18) at core/lvalue.c:352
#3  0x00000000004fa780 in lval_assign (h=0x7ffc8de8ddc0, msg=0x7f4c17592d70, lv=0x7f4c17aa8998, rve=0x7f4c17aa8b10) at core/lvalue.c:400
#4  0x00000000004c3f6f in do_action (h=0x7ffc8de8ddc0, a=0x7f4c17aa92b0, msg=0x7f4c17592d70) at core/action.c:1455
#5  0x00000000004c5cab in run_actions (h=0x7ffc8de8ddc0, a=0x7f4c17aa8668, msg=0x7f4c17592d70) at core/action.c:1581
#6  0x00000000004b8867 in do_action (h=0x7ffc8de8ddc0, a=0x7f4c17aac2b0, msg=0x7f4c17592d70) at core/action.c:1067
#7  0x00000000004c5cab in run_actions (h=0x7ffc8de8ddc0, a=0x7f4c17aa34c0, msg=0x7f4c17592d70) at core/action.c:1581
#8  0x00000000004c63ef in run_top_route (a=0x7f4c17aa34c0, msg=0x7f4c17592d70, c=0x7ffc8de8ddc0) at core/action.c:1666
#9  0x00007f4c16bbc0a2 in reply_received (p_msg=0x7f4c17592d70) at t_reply.c:2543
#10 0x00000000005d0b69 in do_forward_reply (msg=0x7f4c17592d70, mode=0) at core/forward.c:764
#11 0x00000000005d283b in forward_reply (msg=0x7f4c17592d70) at core/forward.c:865
#12 0x0000000000622dd2 in receive_msg (
    buf=0xb034a0 <buf.7140> "SIP/2.0 100 Trying\r\nVia: SIP/2.0/UDP 79.170.68.186;branch=z9hG4bK895d.0e2ee1cb7a0cde9ed9e78d7f0ec22c00.0\r\nVia: SIP/2.0/UDP 79.170.71.172:5080;received=79.170.71.172;rport=5080;branch=z9hG4bKtmtBy7jaQ5"..., len=449, rcv_info=0x7ffc8de8e8b0) at core/receive.c:509
#13 0x0000000000521e67 in udp_rcv_loop () at core/udp_server.c:543
#14 0x0000000000429f56 in main_loop () at main.c:1689
#15 0x0000000000434034 in main (argc=13, argv=0x7ffc8de8f148) at main.c:2876
~~~ 
Best regards, 
Noel

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