[Asterisk-Users] Asterisk Server Hangs

[Dushyanth Harinath]

Hey guys,

Asterisk Server Specs :

Asterisk version :

CLI> show version
Asterisk SVN-trunk-r7230 built by root at asterisk on a i686 running Linux
on 2005-12-25 16:14:47 UTC

System details :

Centos 4.2 (Final)
Linux ip-pbx 2.6.9-22.ELsmp #1 SMP
Intel Dual Xeon 3.06Ghz
Intel SE7501CW2 Motherboard

Digium cards : T110P (E1) , TDM22B, TDM31B, TDM24012B

I added TDM24012B yes'day but haven't configured or used it yet. Its
just connected to the system. The same problem used to occur before
adding TDM24012B to the mix.

This setup hangs up i,e total freeze cant ssh, cant login even from the
system console and nothing in system logs or asterisk logs point me to
any obvious problem. There is no coredump in /tmp too.

Asterisk also freezes up the server when i issue a stop now command in
the CLI sometimes.

The only call traffic at this moment are SIP to SIP internal calls, SIP
to ZAP external calls and ZAP to SIP incoming calls. In all there must
be a total of 10 simultaneous calls.

Im using queues, rxfax, txfax, voicemail, meetme (still testing).

This happens three or four times in a day.

I cant see any IRQ misses in zttool and zttest output is below.

Opened pseudo zap interface, measuring accuracy...
99.987793% 99.987793% 99.987793% 99.987793% 100.000000% 100.000000%
99.987793%
99.987793% 100.000000% 100.000000% 100.000000% 99.987793% 100.000000%
99.987793% 100.000000%
....
....
....
Best: 100.000000 -- Worst: 99.987793 -- Average: 99.992300

Found the below messages in dmesg but seems informational rather than a
error.

Dec 27 22:04:24 asterisk kernel: zaptel Disabled echo canceller because
of tone (tx) on channel 32
Dec 29 21:02:12 asterisk kernel: zaptel Disabled echo canceller because
of tone (rx) on channel 35

I dont know what the problem could be. I followed the doc at
http://www.voip-info.org/wiki-Asterisk+debugging and started asterisk
using safe_asterisk and applied the logger related changes.

Wat else i can do to debug this issue ?

Dushyanth