Date: Fri, 03 Aug 2012 13:21:10 +0100 From: =?ISO-8859-1?Q?Attila_Bog=E1r?= <attila.bogar@linguamatics.com> To: freebsd-fs@freebsd.org Subject: Re: NFS I/O or permission denied errors Message-ID: <501BC236.4030607@linguamatics.com> In-Reply-To: <501B153A.4060408@linguamatics.com> References: <501B153A.4060408@linguamatics.com>
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On 03/08/12 01:03, Attila Bogár wrote:
> See the attached bash script.
Sorry, my script has been stripped off by the list.
It's nothing rocket science, takes an export list from a file
(/root/fs.txt) and mounts the nfs shares in a loop.
-- 8< --
#!/bin/bash
sleepmount=0.33
function mount.all() {
set -e
j=0
while read fs
do
echo mounting $fs
sleep $sleepmount
mount -t nfs -v -o sec=sys,vers=3,proto=tcp server:$fs /mnt/$j
sleep $sleepmount
umount -f /mnt/$j
j=$[j+1]
done < /root/fs.txt
set +e
}
function umount.all() {
umount -f /mnt/* &>/dev/null
}
fsno="$(wc -l /root/fs.txt|cut -d' ' -f1)"
umount.all
i=0;while [ $i -lt $fsno ]; do echo $i; mkdir /mnt/$i ; i=$[i+1]; done
i=0
while [ $i -lt 1000 ]
do
i=$[i+1]
echo "RUN: $i" | tee /tmp/nfstest.status
mount.all
done
-- 8< --
sec=sys,vers=3,proto=udp seems stable, tcp gets an I/O error within 2-3
minutes.
I'm testing this from an up to date CentOS 6.3 nfs client.
I suspicious about the network stack. I tried turning off msi and TSO on
the bce card, but no change yet.
I also took down my lagg interface and tried the onboard single bce, no
change.
This gentleman had a similar problem with nfsv4 but he got no hint from
the list:
http://lists.freebsd.org/pipermail/freebsd-stable/2012-June/068658.html
Can someone reproduce the problem or it is specific to my hardware?
Thanks,
Attila
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