Description
NetAccpet::alloc_cache is a void pointor is used in net_accept().
the alloc_cache does not release after NetAccept canceled.
I'm looking for all code, believe the "alloc_cache" is a bad idea here.
I create a pull request on github: https://github.com/apache/trafficserver/pull/366
also add a condition check for vc==NULL after allocate_vc()