Check /proc/mounts. That's the kernels view of the mounts.
mount looks at /etc/mtab. And ocfs2 1.2 adds and removes
entries /proc/fs/ocfs2 during mount/umount.
Also, see if there are relevant errors in dmesg.
On 06/16/2011 07:16 PM, Neil Campbell wrote:
Hi all,
Not sure what has happened but I am trying to remove a directory that
I thought was copied from an OCFS filesystem.
When I try and remove it I get the typical Device or resource busy error.
This is on RHEL 4 update 8 kernel 2.6.9-89.0.26.ELsmp running OCFS2
version OCFS2 1.2.9 Mon Jan 17 07:38:31 EST 2011 (build
5e8325ec7f66b5189c65c7a8710fe8cb)
Running lsof (as root) on the directory returns nothing.
If I do a mount | grep ocfs I get the following (which is what I expect)
# mount | grep ocfs
ocfs2_dlmfs on /dlm type ocfs2_dlmfs (rw)
/dev/emcpowerq1 on /d00/cfs type ocfs2 (rw,_netdev,heartbeat=local)
/dev/emcpowere1 on /d00/html type ocfs2 (rw,_netdev,heartbeat=local)
However, under cat /proc/fs/ocfs2 there are 3 device entries
ls -l /proc/fs/ocfs2/
dr-xr-xr-x 2 root root 0 Jun 9 15:51 120_257
dr-xr-xr-x 2 root root 0 Jun 9 15:51 120_65
dr-xr-xr-x 2 root root 0 Jun 9 15:51 120_66
-r--r--r-- 1 root root 0 Jun 9 15:51 nodename
-r--r--r-- 1 root root 0 Jun 9 15:51 version
But on the other 3 servers in this cluster there are only 2
If I look at /dev for those devices they are as follows
[root@dc-c02b01-app01 log]# ls -l /dev | grep 120 | egrep '257|65|66'
brw------- 1 root root 120, 65 Feb 2 08:16 emcpowere1
brw------- 1 root root 120, 66 Feb 2 08:16 emcpowere2
brw------- 1 root root 120, 257 Feb 2 08:16 emcpowerq1
emcpowere2 should be umounted and doesn't show up when running mount,
but it seems OCFS still thinks it is mounted.
So what can I do to release this ?
Many thanks
Neil
_______________________________________________
Ocfs2-users mailing list
Ocfs2-users@oss.oracle.com
http://oss.oracle.com/mailman/listinfo/ocfs2-users
