Date: Fri, 03 Sep 2010 11:57:30 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-questions@freebsd.org Subject: Re: Weird Linux - FreeBSD/ZFS NFSv4 interoperability problem Message-ID: <i5qgqa$mi9$2@dough.gmane.org> In-Reply-To: <AANLkTikYbz_fxOF=8LjyJ9Ck6otCGn7GeeqnB48bDbM6@mail.gmail.com> References: <AANLkTikYbz_fxOF=8LjyJ9Ck6otCGn7GeeqnB48bDbM6@mail.gmail.com>
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On 09/02/10 21:25, David Brodbeck wrote: > While doing some interoperability testing between Linux and FreeBSD, I > came up with this unusual issue. I could use some help figuring out > if this is a bug, and if so, where to file it. Here's the scenario: > > - FreeBSD 8.1-RELEASE server, sharing a ZFS filesystem via NFSv4. I think that this is the beginning of your problems - even the developer who is working on NFSv4 says it's too experimental to be used in real world. > - Linux client (I've tested with RHEL 5.4 and Debian Lenny) mounting > said filesystem with NFSv4. > - A user on the Linux client does a Subversion checkout onto the > mounted filesystem. > > At the end of the checkout, access to the filesystem hangs. nfsd on > the FreeBSD server and rpciod on the Linux client seem to be in a > tight loop, and there's lots of network traffic between them. I can > reproduce this every time. > > The problem does not occur if the backing filesystem is UFS instead of > ZFS, if NFSv3 is used instead of NFSv4, or if the client is FreeBSD > instead of Linux. ... but you may have stumbled on something specific. I recommend you repeat this same post (and others you have on the similar topic) on the freebsd-fs at freebsd.org mailing list, the developer (Rick Macklem) reads it.
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