Date: Sun, 14 Jul 1996 18:05:15 +1000 From: Bruce Evans <bde@zeta.org.au> To: dfr@nlsys.demon.co.uk, terry@lambert.org Cc: current@freebsd.org, dfr@render.com Subject: Re: NFSv3 fixes for review Message-ID: <199607140805.SAA20603@godzilla.zeta.org.au>
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>This fix seems to work right for me. I'm nervous about the use of the >timeval, mostly because I'm not sure that it is monotonically >increasing in the ntpd time synchronization case (and haven't >looked deep enough to verify that the reported time from the >microtime is not affected by adjustments. xntpd only does tiny adjustments which can't possibly make the clock go backwards. OTOH, ntpdate or ordinary `date' can set the clock back by years. >Is there a seperate monotonically increasing clock, which is not >modified by time adjust? I guess this would be a factor only on a mono_time. >system with a relatively high drift rate (such that a reboot could >occur such that the delay did not exceed the drift, causing the XID >to go backward). Oops, mono_time isn't monotonic across reboots. I think it is reset by reboot so it is very unsuitable. Bruce
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