[sr-dev] kamailio 4.1 segfault with MySQL auth

Peter Villeneuve petervnv1 at gmail.com
Tue May 20 19:08:35 CEST 2014


I'm listening on TLS only, listen=tls:my-public.ip:5071
I don't see any tcp_children in kamailio.cfg at all. I have fork=yes and
children=4

(gdb) frame 1
#1  0x00000000005328da in send2child (tcpconn=0x7f05815ddda8) at
tcp_main.c:3979
3979    in tcp_main.c
(gdb) p tcp_children[0]
$1 = {pid = 775369265, proc_no = 774909488, unix_sock = 926351409, busy =
12851, mysocket = 0xc0c0c0c0, n_reqs = -1412567058}

Thanks




On Tue, May 20, 2014 at 5:37 PM, Daniel-Constantin Mierla <miconda at gmail.com
> wrote:

>  What is the value of tcp_children on your config? Do you listen on a tcp
> socket?
>
> I need also more from gdb:
>
> frame 1
> p tcp_children[0]
>
> Daniel
>
>
> On 20/05/14 17:44, Peter Villeneuve wrote:
>
> Sure. Thanks Daniel.
>
>
>  #0  handle_ser_child (p=0x7f1ec3adc1d8, fd_i=fd_i at entry=-1) at
> tcp_main.c:3579
>         tcpconn = <optimized out>
>         tmp = <optimized out>
>         response = {9034836, 2086}
>         cmd = <optimized out>
>         bytes = <optimized out>
>         ret = -1
>         fd = <optimized out>
>         flags = <optimized out>
>         t = <optimized out>
>         con_lifetime = <optimized out>
>         nxt_timeout = <optimized out>
>         __FUNCTION__ = "handle_ser_child"
> #1  0x00000000005328da in send2child (tcpconn=0x7f05815ddda8) at
> tcp_main.c:3979
>         i = <optimized out>
>         min_busy = <optimized out>
>         idx = 0
>         wlast = <optimized out>
>         last = <optimized out>
>          crt = 1
>         wfirst = <optimized out>
> #2  handle_tcpconn_ev (tcpconn=0x7f05815ddda8, ev=<optimized out>, ev at entry=1,
> fd_i=fd_i at entry=-1) at tcp_main.c:4314
>         empty_q = <optimized out>
>         bytes = 0
>         __FUNCTION__ = "handle_tcpconn_ev"
> #3  0x000000000053c428 in handle_io (idx=-1, ev=<optimized out>,
> fm=<optimized out>) at tcp_main.c:4366
>          ret = <optimized out>
> #4  io_wait_loop_epoll (repeat=repeat at entry=0, t=5, h=0x89dc40) at
> io_wait.h:1092
>         n = 1
>         r = <optimized out>
>         fm = 0x7f058b9da368
>         revents = 1
> #5  0x0000000000544577 in tcp_main_loop () at tcp_main.c:4660
>         si = <optimized out>
>         r = <optimized out>
>         __FUNCTION__ = "tcp_main_loop"
> #6  0x00000000004821a8 in main_loop () at main.c:1711
>         i = <optimized out>
>         pid = <optimized out>
>         si = 0x0
>         si_desc =
> "\t\000\000\000\005\177\000\000\000\000\034\000\000\000\000\000\001\000\000\000\005\177\000\000\310\311\027\206\005\177",
> '\000' <repeats 18 times>,
> "pn\233\213\005\177\000\000\002\000\000\000\000\000\000\000\f\b\000\000\000\000\000\000@\333`\000\000\000\000\000\003\000\000\000\377\177\000\000\000!\006\370
> \033\340\337\001\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\210ٓ\000\000\000\000\000\200ٓ\000\000\000\000"
>         nrprocs = <optimized out>
>         __FUNCTION__ = "main_loop"
>
>  #7  0x0000000000420585 in main (argc=<optimized out>, argv=<optimized
> out>) at main.c:2533
>         cfg_stream = <optimized out>
>         c = <optimized out>
>         r = <optimized out>
>         tmp = 0x7fffd40e1f81 ""
>         tmp_len = -737279072
>         port = -163754450
>         proto = -1
>         options = 0x608ab0
> ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
>         ret = -1
>         seed = 542838069
>         rfd = 0
> ---Type <return> to continue, or q <return> to quit---
>         debug_save = <optimized out>
>         debug_flag = <optimized out>
>         dont_fork_cnt = <optimized out>
>         n_lst = 0x0
>         p = <optimized out>
>         __FUNCTION__ = "main"
> (gdb) p *p
> Cannot access memory at address 0x7f1ec3adc1d8
> (gdb)
>
>
>
> On Tue, May 20, 2014 at 4:04 PM, Daniel-Constantin Mierla <
> miconda at gmail.com> wrote:
>
>>  Hello,
>>
>> can you get the output of gdb for 'bt full'?
>>
>> As well as 'p *p'?
>>
>> Daniel
>>
>>
>> On 20/05/14 15:59, Peter Villeneuve wrote:
>>
>>  Well I ended up dumping the core and this is what GDB tells me.
>> How can tcp_main.c be missing if I installed the deb packages? Weird.
>>
>>  What do people suggest I do from here? Remove the deb packages and
>> compile directly from git?
>>
>>  Thanks,
>>
>>  Peter
>>
>>
>>  me at myhost:/$ sudo gdb /usr/sbin/kamailio /home/corefiles/core2
>> GNU gdb (GDB) 7.4.1-debian
>> Copyright (C) 2012 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-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/.build-id/dd/9191ec1e595a90e4844b8ccd1c70b3c92037a1.debug...done.
>> done.
>> [New LWP 30988]
>>
>>  warning: Could not load shared library symbols for linux-vdso.so.1.
>> Do you need "set solib-search-path" or "set sysroot"?
>>  [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 -f /etc/kamailio/kamailio.cfg
>> -P /var/run/kamailio/kamailio.'.
>> Program terminated with signal 11, Segmentation fault.
>> #0  handle_ser_child (p=0x7f1ec3adc1d8, fd_i=fd_i at entry=-1) at
>> tcp_main.c:3579
>> 3579    *tcp_main.c: No such file or directory*.
>>  (gdb) backtrace
>> #0  handle_ser_child (p=0x7f1ec3adc1d8, fd_i=fd_i at entry=-1) at
>> tcp_main.c:3579
>> #1  0x00000000005328da in send2child (tcpconn=0x7f05815ddda8) at
>> tcp_main.c:3979
>> #2  handle_tcpconn_ev (tcpconn=0x7f05815ddda8, ev=<optimized out>,
>> ev at entry=1, fd_i=fd_i at entry=-1) at tcp_main.c:4314
>> #3  0x000000000053c428 in handle_io (idx=-1, ev=<optimized out>,
>> fm=<optimized out>) at tcp_main.c:4366
>> #4  io_wait_loop_epoll (repeat=repeat at entry=0, t=5, h=0x89dc40) at
>> io_wait.h:1092
>>  #5  0x0000000000544577 in tcp_main_loop () at tcp_main.c:4660
>> #6  0x00000000004821a8 in main_loop () at main.c:1711
>> #7  0x0000000000420585 in main (argc=<optimized out>, argv=<optimized
>> out>) at main.c:2533
>> (gdb)
>>
>>
>>
>> On Tue, May 20, 2014 at 11:33 AM, Peter Villeneuve <petervnv1 at gmail.com>wrote:
>>
>>> Hi,
>>>
>>>  I posted previously on this issue but never got any replies.
>>>
>>>  Has anyone had this experience with 4.1?
>>> It seems that as soon as a UAC tries to register, Kamailio segfaults:
>>>
>>>  May 20 09:41:00 vmhost /usr/sbin/kamailio[27806]: ALERT: <core>
>>> [main.c:775]: handle_sigs(): child process 27813 exited by a signal 11
>>> May 20 09:41:00 vmhost /usr/sbin/kamailio[27806]: ALERT: <core>
>>> [main.c:778]: handle_sigs(): core was not generated
>>> May 20 09:41:00 vmhost /usr/sbin/kamailio[27806]: INFO: <core>
>>> [main.c:790]: handle_sigs(): INFO: terminating due to SIGCHLD
>>> May 20 09:41:00 vmhost kernel: [251087.555502] kamailio[27813]: *segfault
>>> at* 7fa5d1d0a1dc ip 0000000000536104 sp 00007fffaade6c20 error 4 in
>>> kamailio[400000+27a000]
>>> May 20 09:41:00 vmhost /usr/sbin/kamailio[27812]: INFO: <core>
>>> [main.c:841]: sig_usr(): INFO: signal 15 received
>>>
>>
>>
>>
>>   _______________________________________________
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>>
>>
>> --
>> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>>
>>
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>>
>>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>
>
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