4 Apr
2017
4 Apr
'17
7:29 p.m.
### Description
I'm using a few serial http_async_client functions in my config, I found one setup in
which kamailio stops with a segmentation fault just doing one call. I can reproduce it in
my concrete config, but can't put my finger on the bleeding. I do have a core file.
### Troubleshooting
#### Reproduction
gdb kamailio core
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
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Reading symbols from kamailio...done.
[New LWP 8187]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `kamailio -f /etc/kamailio/kamailio.cfg'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f85580c360a in t_continue () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/tm.so
(gdb) bt full
#0 0x00007f85580c360a in t_continue () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/tm.so
No symbol table info available.
#1 0x00007f8555ed3848 in async_http_cb () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#2 0x00007f8555ecda72 in check_multi_info () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#3 0x00007f8555ec56a4 in event_cb () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#4 0x00007f8555a043dc in event_base_loop () from
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
No symbol table info available.
#5 0x00007f8555ed0c3d in async_http_run_worker () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#6 0x00007f8555eba86e in ?? () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#7 0x00000000004f204c in init_mod_child (m=0x7f855a6195c8, rank=0) at
core/sr_module.c:921
__FUNCTION__ = "init_mod_child"
#8 0x00000000004f1d6a in init_mod_child (m=0x7f855a61a1e0, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#9 0x00000000004f1d6a in init_mod_child (m=0x7f855a61a850, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#10 0x00000000004f1d6a in init_mod_child (m=0x7f855a61adb0, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#11 0x00000000004f1d6a in init_mod_child (m=0x7f855a61b420, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#12 0x00000000004f1d6a in init_mod_child (m=0x7f855a61b8d0, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#13 0x00000000004f1d6a in init_mod_child (m=0x7f855a61bfe8, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#14 0x00000000004f1d6a in init_mod_child (m=0x7f855a61c440, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#15 0x00000000004f1d6a in init_mod_child (m=0x7f855a61c7e8, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#16 0x00000000004f1d6a in init_mod_child (m=0x7f855a61cb88, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#17 0x00000000004f1d6a in init_mod_child (m=0x7f855a61cfc8, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#18 0x00000000004f1d6a in init_mod_child (m=0x7f855a61d370, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#19 0x00000000004f1d6a in init_mod_child (m=0x7f855a61d780, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#20 0x00000000004f1d6a in init_mod_child (m=0x7f855a61dbc8, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#21 0x00000000004f1d6a in init_mod_child (m=0x7f855a61e380, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
---Type <return> to continue, or q <return> to quit---
#22 0x00000000004f1d6a in init_mod_child (m=0x7f855a61ec00, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#23 0x00000000004f1d6a in init_mod_child (m=0x7f855a621608, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#24 0x00000000004f1d6a in init_mod_child (m=0x7f855a622290, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#25 0x00000000004f1d6a in init_mod_child (m=0x7f855a622660, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#26 0x00000000004f1d6a in init_mod_child (m=0x7f855a62c5d0, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#27 0x00000000004f1d6a in init_mod_child (m=0x7f855a62dae0, rank=0) at
core/sr_module.c:918
__FUNCTION__ = "init_mod_child"
#28 0x00000000004f237a in init_child (rank=0) at core/sr_module.c:947
No locals.
#29 0x00000000004231bb in main_loop () at main.c:1700
i = 4
pid = 8165
si = 0x0
si_desc = "udp receiver child=3
sock=185.165.211.54:5063\000\000\000OX\350T\205\177\000\000\000Y\350T\205\177\000\000\260\031B\201\000\000\000\000\000\000\000\000\000\000\350\000\000\000t\000\000\000\000\000\030\"}Z\205\177\000\000\000\000\000\000\000\000\000\000\001\000\000\000\002\000\000\000\002\000\000\000\374\177\000\000\277\201e\000\000\000\000"
nrprocs = 4
woneinit = 1
__FUNCTION__ = "main_loop"
#30 0x0000000000429a61 in main (argc=3, argv=0x7ffc81421d18) at main.c:2639
cfg_stream = 0xf55010
c = -1
r = 0
tmp = 0x7f855b58173d <_dl_lookup_symbol_x+349> "\203\370"
tmp_len = 0
port = 1
proto = 32645
options = 0x72b1b0
":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 = 1992621074
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0x7ffc81421bd0
p = 0x7ffc81421d38 "0>B\201\374\177"
st = {st_dev = 47, st_ino = 29, st_nlink = 2, st_mode = 16877, st_uid = 104,
st_gid = 110, __pad0 = 0, st_rdev = 0, st_size = 60, st_blksize = 4096, st_blocks = 0,
st_atim = {tv_sec = 1488206724,
tv_nsec = 372702711}, st_mtim = {tv_sec = 1491326162, tv_nsec = 837249928},
st_ctim = {tv_sec = 1491326162, tv_nsec = 837249928}, __glibc_reserved = {0, 0, 0}}
__FUNCTION__ = "main"
(gdb) info locals
No symbol table info available.
(gdb) list
1838 int proto;
1839 char *options;
1840 int ret;
1841 unsigned int seed;
1842 int rfd;
1843 int debug_save, debug_flag;
1844 int dont_fork_cnt;
1845 struct name_lst* n_lst;
1846 char *p;
1847 struct stat st = {0};
```
(paste your debugging data here)
```
#### Log Messages
<!--
Check the syslog file and if there are relevant log messages printed by Kamailio, add them
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-->
```
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```
#### SIP Traffic
```
(paste your sip traffic here)
```
### Possible Solutions
### Additional Information
kamailio 5.0.0 (x86_64/linux)
* **Operating System**:
debian on proxmox 4.4.35-1-pve
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