On Tue, Jan 29, 2013 at 2:01 PM, Paul Marwick <paul.marwick@xxxxxxxxx>wrote: > I've had a suggestion that the problem may be due to NetworkManger - if > the network goes down before the NFS shares are unmounted, the sort of hang > that I'm seeing will happen. > > I am using NetworkManager, so it does seem to be a possibility. I'm not > sure how to check at what point in the shutdown cycle the network is > disabled. I have a couple of ways of testing it (one possibility may be to > try a wired network, which should connect and disconnect independently of > NetworkManager), so I'll post back if I can prove or disprove the theory. > > The other option is to replace NetworkManager with wicd (which, so far as > I can remember does not disconnect the network when the desktop is shut > down). > > I will do some testing and post back the results. It would be interesting > if anyone knows how the shut down sequence works, especially when the > network is disconnected. > > Paul. > Good finding Paul. Later tonight I will try your suggestions and see what happens. One more scenario I can think of -please correct me if I'm wrong- is to look what happens if we don't use neither NetworkManger or wicd and just configure the wired interface manually - or even with netcfg, what is more or less the same. Then so far we have these possibilities: 1. try to delay NetworkManager from going down before all the NFS shares are unmounted. 2. if that can't be achieved or just doesn't work take a look what happens when NM is replaced with wicd. 3. as an optional test, disable any network managers and go minimalists using netcfg - or manually configured network interfaces. Later! -Martin
