On Wed, 24 Jan 2018 12:03:54 +0000
Patrick O'Callaghan <pocallaghan(a)gmail.com> wrote:
On rebooting today my system took an age to shutdown, for no
apparent
reason but possibly related to NFS mounts.
I run a daemon to feed entropy into the kernel pool. It sleeps most of
the time, waking up only when the pool drops below a threshold. If I
shutdown while it is sleeping, it takes a minute and a half before
systemd sends it a kill -9, unless it wakes up in the interval. If I
kill the process before shutdown, there is no wait. Perhaps
something like this is happening to you (the NFS mounts?).