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I upgraded kamailio from 4.4.5 to 5.0.0 using the Debian repositories for Debian Jessie.
After upgrading the packages using aptitude the command kamcmd ws.dump does not generate any output but a coredump.
I can reproduce it anytime by running kamcmd ws.dump
[0][root@webrtc:~]# gdb /usr/sbin/kamailio /tmp/core
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
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Reading symbols from /usr/sbin/kamailio...Reading symbols from /usr/lib/debug/.build-id/fe/4d6c322f76df685bbec9adafde99fc43c0bc6a.debug...done.
done.
[New LWP 9079]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/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 SIGSEGV, Segmentation fault.
#0 0x00007f684d974a3b in rpc_struct_add (s=0x14bf340, fmt=0x7f684ca4f4ae "[{") at binrpc_run.c:1101
1101 binrpc_run.c: Datei oder Verzeichnis nicht gefunden.
(gdb) backtrace
#0 0x00007f684d974a3b in rpc_struct_add (s=0x14bf340, fmt=0x7f684ca4f4ae "[{") at binrpc_run.c:1101
#1 0x00007f684ca3a02d in ws_rpc_dump (rpc=0x7f684dba2740 <binrpc_callbacks>, ctx=0x7ffd8a1ce500) at ws_conn.c:625
#2 0x00007f684d97172d in process_rpc_req (buf=0x14a72a4 "\241\003\nY\302\tq\221\bws.dump", size=17, bytes_needed=0x7ffd8a1ce608, sh=0x7ffd8a1ce630,
saved_state=0x14b72a8) at binrpc_run.c:675
#3 0x00007f684d9677bd in handle_stream_read (s_c=0x14a7270, idx=-1) at io_listener.c:511
#4 0x00007f684d969212 in handle_io (fm=0x7f684fd6b1d8, events=1, idx=-1) at io_listener.c:706
#5 0x00007f684d960abf in io_wait_loop_epoll (h=0x7f684db92400 <io_h>, t=10, repeat=0) at ../../core/io_wait.h:1065
#6 0x00007f684d96495c in io_listen_loop (fd_no=1, cs_lst=0x14a1900) at io_listener.c:281
#7 0x00007f684d98048d in mod_child (rank=0) at ctl.c:335
#8 0x000000000053d8c2 in init_mod_child (m=0x7f684fcc2908, rank=0) at core/sr_module.c:921
#9 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc2f70, rank=0) at core/sr_module.c:918
#10 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc35e0, rank=0) at core/sr_module.c:918
#11 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc3de8, rank=0) at core/sr_module.c:918
#12 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc4550, rank=0) at core/sr_module.c:918
#13 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc51d8, rank=0) at core/sr_module.c:918
#14 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc5c70, rank=0) at core/sr_module.c:918
#15 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6138, rank=0) at core/sr_module.c:918
#16 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6670, rank=0) at core/sr_module.c:918
#17 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6e28, rank=0) at core/sr_module.c:918
#18 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc7268, rank=0) at core/sr_module.c:918
#19 0x000000000053dbf0 in init_child (rank=0) at core/sr_module.c:947
#20 0x000000000042357c in main_loop () at main.c:1700
#21 0x0000000000429f71 in main (argc=15, argv=0x7ffd8a1cf208) at main.c:2639
(gdb)
#0 0x00007f684d974a3b in rpc_struct_add (s=0x14bf340, fmt=0x7f684ca4f4ae "[{") at binrpc_run.c:1101
#1 0x00007f684ca3a02d in ws_rpc_dump (rpc=0x7f684dba2740 <binrpc_callbacks>, ctx=0x7ffd8a1ce500) at ws_conn.c:625
#2 0x00007f684d97172d in process_rpc_req (buf=0x14a72a4 "\241\003\nY\302\tq\221\bws.dump", size=17, bytes_needed=0x7ffd8a1ce608, sh=0x7ffd8a1ce630,
saved_state=0x14b72a8) at binrpc_run.c:675
#3 0x00007f684d9677bd in handle_stream_read (s_c=0x14a7270, idx=-1) at io_listener.c:511
#4 0x00007f684d969212 in handle_io (fm=0x7f684fd6b1d8, events=1, idx=-1) at io_listener.c:706
#5 0x00007f684d960abf in io_wait_loop_epoll (h=0x7f684db92400 <io_h>, t=10, repeat=0) at ../../core/io_wait.h:1065
#6 0x00007f684d96495c in io_listen_loop (fd_no=1, cs_lst=0x14a1900) at io_listener.c:281
#7 0x00007f684d98048d in mod_child (rank=0) at ctl.c:335
#8 0x000000000053d8c2 in init_mod_child (m=0x7f684fcc2908, rank=0) at core/sr_module.c:921
#9 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc2f70, rank=0) at core/sr_module.c:918
#10 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc35e0, rank=0) at core/sr_module.c:918
#11 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc3de8, rank=0) at core/sr_module.c:918
#12 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc4550, rank=0) at core/sr_module.c:918
#13 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc51d8, rank=0) at core/sr_module.c:918
#14 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc5c70, rank=0) at core/sr_module.c:918
#15 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6138, rank=0) at core/sr_module.c:918
#16 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6670, rank=0) at core/sr_module.c:918
#17 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6e28, rank=0) at core/sr_module.c:918
#18 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc7268, rank=0) at core/sr_module.c:918
#19 0x000000000053dbf0 in init_child (rank=0) at core/sr_module.c:947
#20 0x000000000042357c in main_loop () at main.c:1700
#21 0x0000000000429f71 in main (argc=15, argv=0x7ffd8a1cf208) at main.c:2639
(gdb) bt full
#0 0x00007f684d974a3b in rpc_struct_add (s=0x14bf340, fmt=0x7f684ca4f4ae "[{") at binrpc_run.c:1101
ap = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7ffd8a1ce3d0, reg_save_area = 0x7ffd8a1ce2e0}}
err = 0
avp = {name = {s = 0x7f684ca4f4a2 "connections", len = 11}, type = 3, u = {strval = {s = 0x0, len = 0}, fval = 0, intval = 0, end = 0}}
rs = 0x14c1390
__FUNCTION__ = "rpc_struct_add"
#1 0x00007f684ca3a02d in ws_rpc_dump (rpc=0x7f684dba2740 <binrpc_callbacks>, ctx=0x7ffd8a1ce500) at ws_conn.c:625
h = 6587863
connections = 0
truncated = 0
order = 0
found = 0
wsc = 0x7f684fd634f8
sorder = {s = 0x7f684d98a158 "if you get this string, you don'tcheck rpc_scan return code !!! (very bad)", len = 74}
th = 0x14bf340
ih = 0xad9180 <rpc_hash_table>
dh = 0x38a1ce4b0
__FUNCTION__ = "ws_rpc_dump"
#2 0x00007f684d97172d in process_rpc_req (buf=0x14a72a4 "\241\003\nY\302\tq\221\bws.dump", size=17, bytes_needed=0x7ffd8a1ce608, sh=0x7ffd8a1ce630,
saved_state=0x14b72a8) at binrpc_run.c:675
err = 0
val = {name = {s = 0x7ffd8a1ce5e0 "\360\346\034\212\375\177", len = 1301657797}, type = 1, u = {strval = {s = 0x14a72ad "ws.dump", len = 7},
fval = 1.06996027198961e-316, intval = 21656237, end = 21656237}}
rpc_e = 0x7f684fd63528
f_ctx = {in = {ctx = {tlen = 10, cookie = 1505888625, type = 0, flags = 1, offset = 10, in_struct = 0, in_array = 0}, s = 0x14a72b5 "", end = 0x14a72b5 "",
record_no = 0, in_struct = 0}, out = {pkt = {body = 0x14b7330 "\003\203", end = 0x14bf330 "", crt = 0x14b7332 ""}, structs = {next = 0x14bf340,
prev = 0x14bf340}}, send_h = 0x7ffd8a1ce630, method = 0x14a72ad "ws.dump", gc = 0x0, replied = 0, err_code = 0, err_phrase = {s = 0x0, len = 0}}
ctx = 0x7ffd8a1ce500
__FUNCTION__ = "process_rpc_req"
#3 0x00007f684d9677bd in handle_stream_read (s_c=0x14a7270, idx=-1) at io_listener.c:511
bytes_free = 65535
bytes_read = 17
---Type <return> to continue, or q <return> to quit---
bytes_needed = 21633280
bytes_processed = 0
r = 0x14a7290
sh = {fd = 8, type = 0, from = {sa_in = {s = {sa_family = 29296, sa_data = "J\001\000\000\000\000\001\000\311Oh\177\000"}, sin = {sin_family = 29296,
sin_port = 330, sin_addr = {s_addr = 0}, sin_zero = "\001\000\311Oh\177\000"}, sin6 = {sin6_family = 29296, sin6_port = 330, sin6_flowinfo = 0,
sin6_addr = {__in6_u = {__u6_addr8 = "\001\000\311Oh\177\000\000\370\224\242\000\000\000\000", __u6_addr16 = {1, 20425, 32616, 0, 38136, 162, 0,
0}, __u6_addr32 = {1338572801, 32616, 10654968, 0}}}, sin6_scope_id = 1}}, sa_un = {sun_family = 29296,
sun_path = "J\001\000\000\000\000\001\000\311Oh\177\000\000\370\224\242\000\000\000\000\000\001\000\000\000\000\000\000\000\330H\036Gh\177", '\000' <repeats 18 times>, "\260\346\034\212\001\000\000\000\330H\036Gh\177\000\000\260\346\034\212\375\177\000\000\255k\225Mh\177\000\000\300\346\034\212\375\177\000\000\330H\036Gh\177\000\000\002\375\255?\000"}}, from_len = 0}
__FUNCTION__ = "handle_stream_read"
#4 0x00007f684d969212 in handle_io (fm=0x7f684fd6b1d8, events=1, idx=-1) at io_listener.c:706
ret = 1
__FUNCTION__ = "handle_io"
#5 0x00007f684d960abf in io_wait_loop_epoll (h=0x7f684db92400 <io_h>, t=10, repeat=0) at ../../core/io_wait.h:1065
n = 1
r = 0
fm = 0x7f684fd6b1d8
revents = 1
__FUNCTION__ = "io_wait_loop_epoll"
#6 0x00007f684d96495c in io_listen_loop (fd_no=1, cs_lst=0x14a1900) at io_listener.c:281
max_fd_no = 195
poll_err = 0x0
poll_method = 2
cs = 0x0
type = 2
__FUNCTION__ = "io_listen_loop"
#7 0x00007f684d98048d in mod_child (rank=0) at ctl.c:335
pid = 0
cs = 0x4178f0 <_start>
rpc_handler = 1
__FUNCTION__ = "mod_child"
---Type <return> to continue, or q <return> to quit---
#8 0x000000000053d8c2 in init_mod_child (m=0x7f684fcc2908, rank=0) at core/sr_module.c:921
__FUNCTION__ = "init_mod_child"
#9 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc2f70, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#10 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc35e0, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#11 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc3de8, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#12 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc4550, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#13 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc51d8, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#14 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc5c70, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#15 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6138, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#16 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6670, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#17 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc6e28, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#18 0x000000000053d5e0 in init_mod_child (m=0x7f684fcc7268, rank=0) at core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#19 0x000000000053dbf0 in init_child (rank=0) at core/sr_module.c:947
No locals.
#20 0x000000000042357c in main_loop () at main.c:1700
i = 4
pid = 9077
si = 0x0
si_desc = "udp receiver child=3 sock=10.3.66.231:5060\000\363o\000\000\000\361\240u\000\000\000\000\000\000\366\374\363\340\341\232\n\004\000\000\000\000\000\000\000\002\375\255?\000\000\000\000\360xA\000\000\000\000\000\000\362\034\212\375\177", '\000' <repeats 18 times>, "\060\357\034\212\375\177\000\000\035\322^\000\000\000\000"
nrprocs = 4
---Type <return> to continue, or q <return> to quit---
woneinit = 1
__FUNCTION__ = "main_loop"
#21 0x0000000000429f71 in main (argc=15, argv=0x7ffd8a1cf208) at main.c:2639
cfg_stream = 0x140d010
c = -1
r = 0
tmp = 0x7ffd8a1d0ef2 ""
tmp_len = 1346830760
port = 32616
proto = -1977814848
options = 0x737490 ":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 = 27692109
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0x0
p = 0x1 <error: Cannot access memory at address 0x1>
st = {st_dev = 15, st_ino = 14760, st_nlink = 2, st_mode = 16832, st_uid = 109, st_gid = 114, __pad0 = 0, st_rdev = 0, st_size = 40, st_blksize = 4096,
st_blocks = 0, st_atim = {tv_sec = 1488887721, tv_nsec = 984216540}, st_mtim = {tv_sec = 1488888110, tv_nsec = 550708698}, st_ctim = {
tv_sec = 1488888110, tv_nsec = 550708698}, __glibc_reserved = {0, 0, 0}}
__FUNCTION__ = "main"
(gdb)
(gdb) info locals
ap = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7ffd8a1ce3d0, reg_save_area = 0x7ffd8a1ce2e0}}
err = 0
avp = {name = {s = 0x7f684ca4f4a2 "connections", len = 11}, type = 3, u = {strval = {s = 0x0, len = 0}, fval = 0, intval = 0, end = 0}}
rs = 0x14c1390
__FUNCTION__ = "rpc_struct_add"
(gdb) list
1096 in binrpc_run.c
(gdb) quit
Mar 7 13:15:45 webrtc kernel: [9074388.189612] kamailio[9526]: segfault at 7fab895ad49d ip 00007fab8a4d2a3b sp 00007fff0712d3d0 error 7 in ctl.so[7fab8a4a1000+4e000]
Mar 7 13:15:45 webrtc /usr/sbin/kamailio[9518]: ALERT: <core> [main.c:744]: handle_sigs(): child process 9526 exited by a signal 11
Mar 7 13:15:45 webrtc /usr/sbin/kamailio[9518]: ALERT: <core> [main.c:747]: handle_sigs(): core was generated
Mar 7 13:15:45 webrtc systemd[1]: kamailio.service: main process exited, code=exited, status=1/FAILURE
Mar 7 13:15:45 webrtc systemd[1]: Unit kamailio.service entered failed state.
[0][root@webrtc:~]# dpkg -l|grep kamailio
ii kamailio 5.0.0+jessie amd64 very fast, dynamic and configurable SIP server
ii kamailio-dbg:amd64 5.0.0+jessie amd64 very fast and configurable SIP server [debug symbols]
ii kamailio-extra-modules:amd64 5.0.0+jessie amd64 Extra modules for the Kamailio SIP Server
ii kamailio-outbound-modules:amd64 5.0.0+jessie amd64 SIP Outbound module for the Kamailio SIP server
ii kamailio-utils-modules:amd64 5.0.0+jessie amd64 Utility functions for the Kamailio SIP server
ii kamailio-websocket-modules:amd64 5.0.0+jessie amd64 WebSocket module for the Kamailio SIP server
[0][root@webrtc:~]#
[130][root@webrtc:~]# kamailio -v
version: kamailio 5.0.0 (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 with gcc 4.9.2
[0][root@webrtc:~]#
Freshly updated Debian Jessie
[0][root@webrtc:~]# cat /etc/issue
Debian GNU/Linux 8 \n \l
[0][root@webrtc:~]# uname -a
Linux webrtc 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2+deb8u3 (2016-07-02) x86_64 GNU/Linux
[0][root@webrtc:~]#
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