[issue1872] nfs stall (fix pushed)

[Matthew Dillon]

::I have uploaded a forced crash dump to ~/crash/33 on my leaf account.
::
::Did kill some unrelated procs, some more might still have killable.
::
::Hope this can narrow problem somewhat.
:

    Here's an updated patch, adding a lock around one little bit that
    I missed in the first patch:

	fetch http://apollo.backplane.com/DFlyMisc/nfs05.patch

					Matthew Dillon 
					<dillon at backplane.com>