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Kamailio is segfaulting after activating pubruri_caller_dlg_var and pubruri_callee_dlg_var from pua_dialoginfo.
modparam("pua_dialoginfo", "use_pubruri_avps", 1)
//modparam("pua_dialoginfo", "pubruri_caller_avp", "$avp(s:pubruris_caller)")
//modparam("pua_dialoginfo", "pubruri_callee_avp", "$avp(s:pubruris_callee)")
modparam("pua_dialoginfo", "pubruri_caller_dlg_var", "pubruri_caller")
modparam("pua_dialoginfo", "pubruri_callee_dlg_var", "pubruri_callee")
When i comment the corresponding lines and switch back to the regular avps Kamailio runs without problems.
In my setup it seems to be sufficient to just set the module parameters to provoke the segfault.
I dont have to wait for any SIP-Traffic or accessing the dlg_vars. Kamailio segfaults while starting.
[root@kamroute ~]# gdb /usr/sbin/kamailio /core.6547
GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-100.el7
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/kamailio...Reading symbols from /usr/lib/debug/usr/sbin/kamailio.debug...done.
done.
[New LWP 6547]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /etc/kamailio/kamailio_'.
Program terminated with signal 11, Segmentation fault.
#0 __strlen_sse2 () at ../sysdeps/x86_64/strlen.S:31
31 movdqu (%rdi), %xmm1
(gdb) bt full
#0 __strlen_sse2 () at ../sysdeps/x86_64/strlen.S:31
No locals.
#1 0x00007fc7c61786c4 in mod_init () at pua_dialoginfo.c:692
bind_pua = 0x7fc7c6396b88 <bind_pua>
s = {s = 0x0, len = -969002120}
avp_spec = {type = 397561584, getf = 0x7fc7ce3b8827 <__fprintf+135>, setf = 0x3, pvp = {pvn = {type = 48, nfree = 0x7ffd17b24e80, u = {isname = {type = 397561264, name = {n = 7976200, s = {s = 0x79b508 "DEBUG",
len = 397562576}, re = 0x79b508}}, dname = 0x7ffd17b24db0}}, pvi = {type = 0, u = {ival = 6547, dval = 0x1993}}}, trans = 0x79b508}
__FUNCTION__ = "mod_init"
#2 0x00000000005661e2 in init_mod (m=0x7fc7cdbd3ac0) at core/sr_module.c:966
__FUNCTION__ = "init_mod"
#3 0x0000000000565f1e in init_mod (m=0x7fc7cdbd3e50) at core/sr_module.c:963
__FUNCTION__ = "init_mod"
#4 0x0000000000566519 in init_modules () at core/sr_module.c:995
t = 0x20000003e4
i = 994
__FUNCTION__ = "init_modules"
#5 0x00000000004293e1 in main (argc=13, argv=0x7ffd17b252d8) at main.c:2584
cfg_stream = 0x254c010
c = -1
r = 397562176
tmp = 0x7ffd17b256e0 ""
tmp_len = 0
port = 0
proto = 0
options = 0x737a20 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
ret = -1
seed = 286186509
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0x0
p = 0x0
st = {st_dev = 18, st_ino = 37027, st_nlink = 2, st_mode = 16832, st_uid = 996, st_gid = 2, __pad0 = 0, st_rdev = 0, st_size = 60, st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1507876455, tv_nsec = 469604021},
st_mtim = {tv_sec = 1507878072, tv_nsec = 553083864}, st_ctim = {tv_sec = 1507878072, tv_nsec = 553083864}, __unused = {0, 0, 0}}
__FUNCTION__ = "main"
(gdb) info locals
cfg_stream = 0x254c010
c = -1
r = 397562176
tmp = 0x7ffd17b256e0 ""
tmp_len = 0
port = 0
proto = 0
options = 0x737a20 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
ret = -1
seed = 286186509
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0x0
p = 0x0
st = {st_dev = 18, st_ino = 37027, st_nlink = 2, st_mode = 16832, st_uid = 996, st_gid = 2, __pad0 = 0, st_rdev = 0, st_size = 60, st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1507876455, tv_nsec = 469604021}, st_mtim = {
tv_sec = 1507878072, tv_nsec = 553083864}, st_ctim = {tv_sec = 1507878072, tv_nsec = 553083864}, __unused = {0, 0, 0}}
__FUNCTION__ = "main"
(gdb) list
26 mov %edi, %ecx
27 and $0x3f, %ecx
28 pxor %xmm0, %xmm0
29 cmp $0x30, %ecx
30 ja L(next)
31 movdqu (%rdi), %xmm1
32 pcmpeqb %xmm1, %xmm0
33 pmovmskb %xmm0, %edx
34 test %edx, %edx
35 jnz L(exit_less16)
(gdb)
Nothing which seems to be interesting. Kamailios last words are:
0(7450) DEBUG: <core> [core/sr_module.c:965]: init_mod(): pua_dialoginfo
0(7450) DEBUG: <core> [core/sr_module.c:694]: find_mod_export_record(): find_export_record: found <bind_pua> in module pua [/usr/lib64/kamailio/modules/pua.so]
0(7450) DEBUG: <core> [core/sr_module.c:694]: find_mod_export_record(): find_export_record: found <load_dlg> in module dialog [/usr/lib64/kamailio/modules/dialog.so]
0(7448) ERROR: <core> [core/daemonize.c:303]: daemonize(): Main process exited before writing to pipe
no SIP Traffic needed
kamailio -v[root@kamroute ~]# kamailio -v
version: kamailio 5.0.3 (x86_64/linux)
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: unknown
compiled on 12:31:32 Sep 20 2017 with gcc 4.8.2
[root@kamroute ~]# rpm -qa|grep kamail
kamailio-presence-5.0.3-10.el7.x86_64
kamailio-outbound-5.0.3-10.el7.x86_64
kamailio-debuginfo-5.0.3-10.el7.x86_64
kamailio-5.0.3-10.el7.x86_64
kamailio-ims-5.0.3-10.el7.x86_64
kamailio-xmpp-5.0.3-10.el7.x86_64
kamailio-mysql-5.0.3-10.el7.x86_64
[root@kamroute ~]#
Up2date RHEL7.
[root@kamroute ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4 (Maipo)
[root@kamroute ~]# uname -a
Linux kamroute.intranet.mydomain.de 3.10.0-514.26.1.el7.x86_64 #1 SMP Tue Jun 20 01:16:02 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@kamroute ~]#
If you need any further information just let me know!
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