David Stevens/Beaverton/IBM wrote on 10/26/2011 06:51:26 PM: AM: > > Also, in case learning is NULL, you may need to set it to 'any' (for > > backwards-compatibility) to avoid a NULL pointer crash later on. > I didn't try it with NULL -- if it is not set (ie, the variable is not > present at all), it defaults to "any" already. If it's set to garbage, That was not the behavior I had encountered. I forgot to put the ip_learning into the collection of variables and then learning ended up being NULL, which then crashed it. when By the way, also try the 'kill -SIGHUP `pidof libvirtd`' to have the filters rebuilt. It's similar to a restart of libvirtd. Stefan