1 RedHat nfs Client which is connected to a spectrometer (chemistry Instrument):
Code:
[root@BH083108 ~]# uname -a
Linux BH083108 2.6.9-78.0.17.ELsmp #1 SMP Thu Mar 5 04:52:17 EST 2009 i686 i686 i386 GNU/Linux
[root@BH083108 ~]# cat /proc/version
Linux version 2.6.9-78.0.17.ELsmp (mockbuild@hs20-bc1-5.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-10)) #1 SMP Thu Mar 5 04:52:17 EST 2009
(dated kernel and OS version on RedHat box is a requirement for the sepectrometer software)
/etc/fstab/
fs:/home /server nfs rw,suid,proto=tcp 0 0
/dev/scd0 /media/cdrecorder auto pamconsole,exec,noauto,managed
0 0
1 freebsd nfs client
Code:
mount_nfs -b machine_name:/home /mnt
( No issues with this nfs client at all)
1 freebsd nfs server:
Code:
FreeBSD machine_name 7.2-RELEASE FreeBSD 7.2-RELEASE #1: Wed Aug 19 14:20:21 EDT 2009 sysadm@machine_name:/usr/obj/usr/src/sys/KERNEL_FILE amd64
/etc/exports
/home -alldirs <ip of freebsd nfs client> <ip of redhat nfs client>
From a fresh boot on nfs redhat client and freebsd nfs server, the freshly mounted redhat desktop hangs when there isn't any activity on the redhat box for roughly 5 minutes or so. Hangs on df -h or when cd to the /server mount point. /var/log/messages on the redhat client report:
Aug 27 17:37:12 localhost kernel: nfs_statfs: statfs error = 512
Aug 27 17:37:27 localhost kernel: RPC: error 512 connecting to server machine_name
there is also this error:
Code:
Aug 27 17:37:28 localhost kdesktop_lock:
Code:
redhat:
[root@BH083108 ~]# umount -f /mnt
umount2: Device or resource busy
umount: /mnt: device is busy
umount2: Device or resource busy
umount: /mnt: device is busy
DNS is good, nothing seems wrong there.
There is a auto mount setup for the cdROM
Could this be a kernel issue on the client redhat box?
Like I said works great util its not used for about 5 minutes.
*** I also posted this in the Unix general forum, but would like to get the Linux point of view. ***
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