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SubjectRe: strange nfs behavior in 2.2.18 and 2.4.0-test12
On Thursday December 21, covici@ccs.covici.com wrote:
> Hi. I am having strange nfs problems in both my 2.x and 2.4.0-test12
> kernels.
>
> What is happening is that when the machine boots up and exports the
> directories for nfs, it complains that
>
> ccs2:/ invalid argument .
>
> The exports entry is
>
> / ccs2(rw,no_root_squash)

Is there another export entry that exports another part of the same
file system to the same client? If so, that is your problem.
You cannot export two different directories on the same filesystem to
the same client if one is an ancestor of the other (because exporting
a directory is really exporting the directory and all descendants on
that filesystem, and so exporting a directory and a subdirectory is
effectively exporting the subdirectory twice with potentially
different flags).

NeilBrown

>
> Now in Kernel 2.2.18, if I stop and restart the nfs daemons, all is
> OK, the invalid argument goes away, but in 2.4.0 I cannot get this to
> work at all and so I cannot mount nfs from a client on the ccs2 box.
> I am using the utilities 0.2.1-4 from the Debian distribution if that
> makes any difference. I did an strace once on exportfs and it was
> having trouble with the call to nfsservctl which returns invalid argument.
>
>
> Any assistance would be appreciated.
>
> --
> John Covici
> covici@ccs.covici.com
>
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