asterisk users - Mar 2010 - Sip module problem

Hi,

I need some help debugging a sip situation.

I started to have problems with sip trunks, using more than one trunk (and
sometimes using only one) the sip module seems to freeze.

My local extensions lost registration and also the trunks.  The only way
that I can restart the sip is removing the trunks. If I make sip reload or
restart asterisk the sip module takes many many time before starting.

I use the logger in full in order to debug the problem but don't see
anything strange. 

 

During the freeze If I make sip show peers , all the extensions and trunks
are unreachable, (where etx 10 and 11 and trunk telepac5)

 

12/12                      (Unspecified)    D   N      0        UNKNOWN

11/11                      172.16.1.100     D   N      5063     UNREACHABLE

100                        (Unspecified)    D   N      0        UNKNOWN

10/10                      172.16.1.101     D   N      25124    UNREACHABLE

telepac5/+351302028197     213.13.89.67                5060     UNREACHABLE

 

But I know that are request's coming to my box if I check with netstat
I'm
receiving packages  

 

[root at localhost ~]# netstat -an|grep 5060

udp        0      0 0.0.0.0:5060                0.0.0.0:*

[root at localhost ~]# netstat -an|grep 5060

udp     1840      0 0.0.0.0:5060                0.0.0.0:*

[root at localhost ~]# netstat -an|grep 5060

udp     1840      0 0.0.0.0:5060                0.0.0.0:*

[root at localhost ~]# netstat -an|grep 5060

udp     1840      0 0.0.0.0:5060                0.0.0.0:*

[root at localhost ~]# netstat -an|grep 5060

udp    27600      0 0.0.0.0:5060                0.0.0.0:*

[root at localhost ~]# netstat -an|grep 5060

udp    33120      0 0.0.0.0:5060                0.0.0.0:*

 

The second field  Recv-Q is according to man "The count of bytes not copied
by the user program connected to this socket.", so this means that asterisk
is not getting this packets right?...

 

 I started with asterisk version 1.4.26.1, upgraded to 1.4.29 but got the
same result

 

How can I debug this situation? Is there a way to debug the "insides"
of the
sip module?

 

Regards

Luis

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Hi!
> I started to have problems with sip trunks, using more than one trunk
> (and sometimes using only one) the sip module seems to freeze... My local
> extensions lost registration and also the trunks. The only way that I
> can restart the sip is removing the trunks...
Have seen this also on different 1.4 versions (1.4.18), created a bug
report and was told this to be a DNS issue. I do not think it is, but
never got this one fully solved.

https://issues.asterisk.org/view.php?id=15139
https://issues.asterisk.org/view.php?id=15052

'This bug is surely a DNS related problem, if you look over /main/dns.c
you'll find:
"Asterisk DNS is synchronus at this time. This means that if your DNS
does not work properly, Asterisk might not start properly or a channel
may lock."
Try to change nameservers in /etc/resolv.conf.'

What distribution & kernel are you using?
> If I make sip reload or restart asterisk the sip module takes many many
time
> before starting.
That I didn't notice, had to do a reboot (!).

Philipp