Date: Tue, 3 Dec 2002 14:47:49 -0500 From: Chuck Swiger <cswiger@mac.com> To: Pete French <pfrench@firstcallgroup.co.uk> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: NFS interoperability problem Message-ID: <1A811F67-06F8-11D7-A933-000A27D85A7E@mac.com> In-Reply-To: <E18JIWF-000MvH-00@mailhost.firstcallgroup.co.uk>
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On Tuesday, December 3, 2002, at 02:15 PM, Pete French wrote:
> I have a set of discs NFS mounted from a FreeBSD machine onto an
> OpenStep 4.2 machine. This should be a very vanilla 4.3 BSD impementation
> opf NFS as far as I know, and I have been using it for many years with no
> problems, including as a client for FreeBSD.
OPENSTEP 4.2 probably has a bug lurking from the NFS v2 sources, according
to an /etc/system tunable parameter under Solaris:
nfs:nfs_shrinkreaddir
Description
Some older NFS servers might incorrectly handle NFS version 2 READDIR
requests for more than 1024 bytes of directory information. This is due to
a bug in the server implementation. However, this parameter contains a
workaround in the NFS version 2 client.
When this parameter is enabled, the client does not generate a READDIR
request for larger than 1024 bytes of directory information. If this
parameter is disabled, then the over-the-wire size is set to the minimum
of either the size passed in by using the getdents(2) system call or by
using NFS_MAXDATA, which is 8192 bytes.
--
Try setting vers=2, or even add rsize=1024,wsize=1024 if that doesn't help.
It's also conceivable that installing the last set of Y2K patches for
OPENSTEP 4.2 (available from Apple) might include a kernel which fixed
this bug.
-Chuck
Chuck Swiger | chuck@codefab.com | All your packets are belong to
us.
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"The human race's favorite method for being in control of the facts
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