[SR-Users] help with kamailio crash

[Daniel-Constantin Mierla]

Hello,

it seems that the core file of the process that crashed was overwritten 
by a core dumped by the main process while cleaning up.

Did you get many core files? If not, can you look in the log messages to 
see if there were some error messages printed at the time of crash?

You should enable one core per pid, usually this is done by:

echo "1" > /proc/sys/kernel/core_uses_pid

Cheers,
Daniel


On 9/26/12 2:40 PM, Vicente Hernando wrote:
> Hello,
>
> we are using a kamailio 3.3.1 version here and suddenly it crashed 
> with a core.
>
> Any point about how to debug this will be appreciated!
>
>
> # /usr/local/kamailio/sbin/kamailio -V
> version: kamailio 3.3.1 (x86_64/linux) 91e8cb
> flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, 
> USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, 
> SHM_MMAP, PKG_MALLOC, F_MALLOC, 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 4MB
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> id: 91e8cb
> compiled on 04:59:57 Sep 13 2012 with gcc 4.6.3
>
>
> (gdb) bt full
> #0  0x00007f242514e445 in raise () from /lib/x86_64-linux-gnu/libc.so.6
> No symbol table info available.
> #1  0x00007f2425151bab in abort () from /lib/x86_64-linux-gnu/libc.so.6
> No symbol table info available.
> #2  0x00000000004740b2 in sig_alarm_abort (signo=<optimized out>) at 
> main.c:695
> No locals.
> #3  <signal handler called>
> No symbol table info available.
> #4  0x00007f24252066d7 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
> No symbol table info available.
> #5  0x0000000000542c58 in futex_get (lock=0x7f23e1ceb7a8) at 
> mem/../futexlock.h:110
>         i = <optimized out>
> #6  timer_del_safe (tl=0x7f23e1d378e0) at timer.c:729
>         ret = -1
> #7  0x0000000000447ab6 in destroy_dns_cache () at dns_cache.c:245
> No locals.
> #8  0x0000000000474f95 in cleanup (show_status=1) at main.c:572
>         memlog = <optimized out>
> #9  0x0000000000475969 in shutdown_children (show_status=1, sig=15) at 
> main.c:712
> No locals.
> #10 0x00000000004767ac in handle_sigs () at main.c:803
>         chld = <optimized out>
>         chld_status = 139
>         memlog = <optimized out>
> #11 0x0000000000478ed5 in main_loop () at main.c:1762
>         i = <optimized out>
>         pid = <optimized out>
>         si = <optimized out>
>         si_desc = "udp receiver child=5 
> sock=79.170.68.187:5060\000\177", '\000' <repeats 18 times>, 
> "\001\000\000\000\000\000\000\000\000\000\300>\000\000\000\000\001\000\000\000#\177\000\000Q\251U\000\000\000\000\000\020p\321$$\177\000\000\b\000\000\000\000\000\000\000x\264\316\341#\177\000\000\000gE\345\322\024P\027" 
>
>         nrprocs = <optimized out>
> #12 0x000000000041add2 in main (argc=<optimized out>, argv=<optimized 
> out>) at main.c:2546
>         cfg_stream = <optimized out>
>         c = <optimized out>
>         r = <optimized out>
>         tmp = 0x7fff551d8f24 ""
> ---Type <return> to continue, or q <return> to quit---
>         tmp_len = 1427999204
>         options = 0x5df520 
> ":f:cm:M:dVIhEb:l:L:n:vrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
>         ret = -1
>         seed = 603487729
>         rfd = 0
>         debug_save = <optimized out>
>         debug_flag = <optimized out>
>         dont_fork_cnt = <optimized out>
>         n_lst = 0x0
>         p = <optimized out>
>
>
> Thanks in advance,
> Vicente.
>
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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu