[Asterisk-Users] SIP monitor thread is hanged up on a uClinux embeded linux system

[Liang Huang]

I met a strange SIP problem recently.

In an ordinary procedure, when asterisk loads sip module, a series of 
functions are called sequentially:
load_module()->restart_monitor()->ast_pthread_create()->pthread_create()->do_monitor()

However in my system, pthread_create() failed to create a child thread 
to execute do_monitor(), (though pthread_create() returns a successful 
signal to asterisk.) Therefore my sip monitor can't monitor the incoming 
network flow and it results that no SIP packet will be caught.

Could anyone give me some hints to explain why the thread is not created 
properly or why the thread is created but it doesn't execute do_monitor 
at all. Thanks a lot!

Best Regards,

Liang