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

[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.


Kind regards,
Jonas.
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