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Re: Did you know that nfs mount requires accurate time?

On Tue, Feb 02, 1999 at 04:23:21PM +0100, Paul Slootman wrote:
> On Tue 02 Feb 1999, Loic Prylli wrote:
> > Oscar Levi writes:
> > 
> >  > Also, it seems like it would be helpful to add a note to the README in
> >  > the disks-alpha directory about nfs installs requiring accurate time.
> > 
> > I was not aware of that, do you know where is this restriction needed?
> > (I know I used NFS for some time  between a machine in year 2018 and
> > normal ones).
> Ditto (ok, not 2018 but certainly off by a couple of hours). I don't
> understand why this should be a problem for NFS; after all, NFS is
> stateless... It's a pain if using 'make' on a NFS directory, but
> otherwise no problem.

I believe it is a problem for RPC, not for NFS itself.  The NFS server
believes that the connection is made, but the client RPC returns with
a timeout error.

> > The "epoch selection" should be done by the kernel, but the code there
> The RTC stuff needs to be selected in the kernel config for this to
> work.

It is.

  # Watchdog Cards
  # CONFIG_WDT is not set
  # CONFIG_PCWATCHDOG is not set
  # CONFIG_ACQUIRE_WDT is not set
  # CONFIG_NVRAM is not set

  # Video For Linux
  # CONFIG_VIDEO_DEV is not set

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