Device polling heavy traffic

[Mike Jakubik]

Mihai Tanasescu wrote:
> The problem:
> If I ping this machine or anything that is routed through it I get 
> response times of 10-15-30 ms and once in 30 seconds a packet is lost.
>
> If I disable kernel.polling.enable then I get response times of 1-2-3 
> ms but I also get a lot of interrupts and a kernel panic after about 
> 20 min.

You should not be getting a panic, unless you have bad hardware. Can you 
provide more details of the panic? Also, provide the version of freebsd, 
any custom kernel configuration, and attach output of dmesg.