Date: Sat, 13 Feb 2010 11:09:02 +0100 From: Bernd Walter <ticso@cicely7.cicely.de> To: alan bryan <alanbryan1234@yahoo.com> Cc: freebsd-hackers@freebsd.org, Dmitry Marakasov <amdmi3@amdmi3.ru>, freebsd-stable@freebsd.org, Rick Macklem <rmacklem@uoguelph.ca> Subject: Re: NFS write corruption on 8.0-RELEASE Message-ID: <20100213100902.GH43625@cicely7.cicely.de> In-Reply-To: <247310.48932.qm@web50506.mail.re2.yahoo.com> References: <Pine.GSO.4.63.1002121410100.24931@muncher.cs.uoguelph.ca> <247310.48932.qm@web50506.mail.re2.yahoo.com>
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On Fri, Feb 12, 2010 at 04:08:55PM -0800, alan bryan wrote: > > > --- On Fri, 2/12/10, Rick Macklem <rmacklem@uoguelph.ca> wrote: > > > From: Rick Macklem <rmacklem@uoguelph.ca> > > Subject: Re: NFS write corruption on 8.0-RELEASE > > To: "Dmitry Marakasov" <amdmi3@amdmi3.ru> > > Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org, "John Baldwin" <jhb@freebsd.org> > > Date: Friday, February 12, 2010, 11:12 AM > > > > > > On Fri, 12 Feb 2010, Dmitry Marakasov wrote: > > > > > > > > I'm planning a massive testing for this weekend, > > including removing > > > soft mount option and trying linux client/server. > > > > > > Btw, I forgot to mention that I'm experiencing other > > NFS problems from > > > time to time, including "death" of a mount (that is, > > all processes that > > > try to access it freeze; this cures itself in some > > time with a message > > > "server is alive again"). Also I've seen another > > strange thing - not > > > only the mount dies but the network is flooded with > > NFS traffic. > > > Last time I've seen it quite a while ago, so I don't > > remember the > > > circumstances and direction of the traffic. > > > > > There are some patches at: > > http://people.freebsd.org/~rmacklem > > that may be relevant if you are using vanilla FreeBSD-8.0. > > (They're all > > now in stable/8, but are post-release of 8.0.) > > > > rick > > > > _______________________________________________ > > freebsd-stable@freebsd.org > > mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > > > > This is interesting: > > "I've seen another strange thing - not only the mount dies but the network is flooded with NFS traffic." You might be able to see NFS flooding with: Write file on client. rm the file during the write on the server. The client now gets IO-errors, but keeps trying forever. Maybe it depends on the mechanism the client application uses to write the file. I never reported because my client is an old 7.0-stable system. I originally noticed it when downloading files with seamonkey on my client and mv it on the server to another partition before it was completely downloaded. -- B.Walter <bernd@bwct.de> http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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