Hi,
Eight moths later, I'm having the same issue with 2.0.1-RELEASE (i386), using just one layer7 rule (httpvideo), sending this traffic (mostly youtube) to a low priority queue. I'm getting:
ipfw-classifyd: unable to write to divert socket: No buffer space available
…about 10 times per minute, with CPU load never reaching more than %20, and near 5% most of the time.
I have 3GB ram, although it seems nothing to do with this problem.
While seen these errors, the filtering seems to be working fine... and the queue is getting the expected traffic, but only after a while, when the entire VLAN will lost connection. After removing the layer7 rule, everything works fine again.
I have spent days and weeks searching and reading about this error, but I have found no solution yet. If my cpu and memory are resting most of the time, why I'm still getting this error? what other system/kernel parameter I should look at?
Thanks in advance....