Re: troubling interaction with quotas and nfs

[Andrew Ryan <andrewr@collab.net>]

Neil Brown wrote:

>
> You could also
>    echo 32 > /proc/sys/sunrpc/nfsd_debug
> and watch for
>     "nfsd: write complete err=%d"
> messages in the kernel log.  These will tell you whether nfsd thinks
> it got an error for the write.

Can you elaborate on what the various values one could write to
/proc/sys/sunrpc/nfsd_debug and what you would get with different values in
terms of logging? This sounds like something that could be useful to many
others and included in the HOWTO or FAQ as well. I've checked the kernel docs
and they basically say to 'use the source,' but since we have some of the
core NFS client/server developers here perhaps someone can offer a few hints
for people debugging NFS configurations.

Also, is there any known or performance or stability hit to running with
NFS debug on?


thanks,
andrew


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