On Wed, 12 Jan 2011, Eric Reischer wrote:
I recently upgraded our NFS fileserver to an ext4 filesystem, and
since then we've been having clock skew warnings from make (3.81).
Because the ext3 filesystem that was previously running on the NFS
server didn't support high-precision timestamps, we didn't have clock
skew warnings because an hourly cron job kept the clocks in
relatively close sync. However, since ext4 does support sub-second
timestamps, we're getting warnings about clock skews on the order of
a few milliseconds. I tried adding our target objects
Usually the solution to this is to install and run ntp (Network Time
Protocol, as offered by 'xntp') on the machines on your network. This
seems to be quite effective on real hardware, and sometimes less
effective in virtual machines (e.g. VMWare or Virtualbox) which can
only emulate the hardware clock. I am not aware of a more effective
method than using ntp.
Bob