Date: Thu, 16 Dec 1999 08:50:59 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> 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: <14567.945330659@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 15 Dec 1999 23:43:06 PST." <199912160743.XAA49890@apollo.backplane.com>
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In message <199912160743.XAA49890@apollo.backplane.com>, Matthew Dillon writes: > >:> 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! >: >:Is this another case of "lets assume the time of day is a random number" or >:is there any underlying assumption about time in this ? >: >:-- >:Poul-Henning Kamp FreeBSD coreteam member >:phk@FreeBSD.ORG "Real hackers run -current on their laptop." > > It basically needs to be a unique for each server reboot in order > to allow clients to resynchronize. Ok, then I suggest that you cache a copy of the boottime in the NFS code for this purpose. -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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