[asterisk-users] Zaptel timer on Intel Dual Core servers

[Johansson Olle E]

Friends,

I'm having severe problems with zaptel timers on Intel Dual Core  
systems with SMP code enabled. Ztdummy, zaptel connected to Digium TDM  
or PRI cards - all ends up with large timer probems - zttest going  
down to 50% accuracy on some systems, even to -1 on ztdummy systems  
and voice quality is no more.  A restart is the only way to get back  
to a working system.

We're only running a few meetme's with a total of 10 participants, so  
the load is not excessive. Only SIP calls, nothing else (it's me,  
right :-) ) ? If I hit the system with SIPP targeting an extension  
only doing playback, which doesn't even use zttimer, the timer slides  
away.

I've played around with the irqbalance daemon, but don't see any big  
differences with or without it.

My question is if anyone else have seen this and if anyone has a  
possible solution?

Thanks in advance for your help!

/Olle