[asterisk-users] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'

[Arjan Kroon | Mobillion]

Hi,

We had the same problems.
These problems accours when we try to send (from different servers) a lot of IAX calls to one server. (see couple of 100 calls at the same time)

When we upgraded asterisk to version 1.8 we didn't get these problems.

Regards,

Arjan Kroon

Van: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] Namens Jonas Kellens
Verzonden: 14-01-2011 14:31
Aan: Asterisk Users Mailing List - Non-Commercial Discussion
Onderwerp: Re: [asterisk-users] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'

On 01/14/2011 02:22 PM, Thorsten Göllner wrote: 


Am 14.01.2011 12:50, schrieb Jonas Kellens: 
On 01/14/2011 12:44 PM, Thorsten Göllner wrote: 
Am 14.01.2011 11:55, schrieb Jonas Kellens: 
Hello list,

today I experienced the following for the first time :

[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:18] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
<snip>
[Jan 14 11:26:19] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:19] DEBUG[27654] channel.c: Avoiding deadlock for channel '0x114af2c0'
[Jan 14 11:26:19] DEBUG[27654] channel.c: Failure, could not lock '0x114af2c0' after 199 retries!

Question 1 : What can be causing this ??
Question 2 : What can I do when this happens ? Because Asterisk was no longer responding untill I rebooted the server. What is the right way to handle this extreem situation ?
Question 3 : How can I avoid this situation from happening again ?

Sometimes I can see this messages too - but with no impact. It is a debug-message and should not indicate any problems. What does it mean when you say "Asterisk was no longer responding"?

-Thorsten-

Hello,

the debug-file is flooded with this message during 2 à 3 seconds and counts about 300 à 400 lines... So I don't think it's just a debug-message.

Asterisk was not responding as in "core show channels" had no output, "sip show peers" had no output, "core restart now" did nothing...
The Asterisk proces was still running though...

Also: all registrations of SIP peers were lost. I could see that the IP-phones lost their registration to the Asterisk server. And they did not re-register untill the server was finally rebooted.
This message is repeated over 100 times. (You can take a look at the source code.) Which Asterisk-Version do you use? Did it happen before or again?
-Thorsten-

Hello,

I use asterisk 1.6.2.10

As I said, this is the first time I experience this.

I used 1.4 before, never had this. I'm using 1.6.2.10 now for about 5 à 6 months and this is the first time.


Kind regards,
Jonas.