Date: Fri, 17 Dec 1999 09:52:20 +0000 (GMT) From: Doug Rabson <dfr@nlsystems.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Andrew Gallatin <gallatin@cs.duke.edu>, freebsd-current@freebsd.org Subject: Re: Serious server-side NFS problem Message-ID: <Pine.BSF.4.10.9912170952050.51079-100000@salmon.nlsystems.com> In-Reply-To: <199912160600.WAA47882@apollo.backplane.com>
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On Wed, 15 Dec 1999, Matthew Dillon wrote: > Here's a general update on this bug report to -current. It took all day > but I was finally able to reproduce Andrew's bug. > > You guys are going to *love* this. > > NFS uses the kernel 'boottime' structure to generate its version id. > Now normally you might believe that this structure, once set, will > never change. The authors of NFS certainly make that assumption! > > No such luck. If you happen to be running, oh, xntpd for example, > the kernel adjusts the boottime structure to take into account time > changes, including PLL changes so, in fact, the boottime structure > can change quite often - once each tick, in fact. Nice catch, Matt. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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