This is typically a symptom of excessively long running h extensions. It doesn’t cause problems in itself, and it does not necessarily indicate a faulty dialplan.
What is your actual BIG PROBLEM, given this isn’t a problem in itself?
PS nearly all threads here are for help about problems and most people think their own problem is BIG, so you subject is not useful in helping find the thread or telling people roughly what it is about.
hi david
it is big problem for me because asterisk be freez and could not create new sip channel for new call.
what is your mean about long running h extensions??
How can resolve this problem?
An h extension is the special extension that is run when a channel hangs up. Long running means running longer than the timeout for destroying the SIP dialogue.
If you are getting other symptoms of a deadlock, the message you quote is a symptom, not the problem.
When you say you cannot create SIP channels, do you meant that attempts to create them to any endpoint stop dead in their tracks, or does the problem only affect the endpoint in question here, and does the attempt end with an error?
Post more logs. Look at /var/log/asterisk/messages or /var/log/asterisk/full and provide samples from these files of the exact point that your call flow is hanging.