On Sat, Jan 12, 2008 at 03:37:59AM +0100, Andi Kleen wrote: > > And yes, the > > network stack shouldn't call synchronize_rcu() quite so much, but fixing that > > is a little more involved. > > ... but the correct solution. There has to be at least 1 synchronize_rcu() or equivalent in the unregister_netdev() path. I suspect the easiest way to fix it might be to use call_rcu() to actually free the network device, as anything else will limit performance of single threaded teardown (ie, when an l2tp daemon gets terminated via kill -9). This means an API change that exposes rcu for unregister_netdev(). -ben -- "Time is of no importance, Mr. President, only life is important." Don't Email: <zyntrop@xxxxxxxxx>. - To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
