[Ocfs2-users] ls

[leopoldo tosi]

OS ubuntu
ub-ocfs1 and ub-ocfs:~# uname -a
Linux ub-ocfs 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

on both:

ub-ocfs:~# service o2cb start
Loading stack plugin "user": OK
Loading filesystem "ocfs2_dlmfs": OK
Mounting ocfs2_dlmfs filesystem at /dlm: OK
Setting cluster stack "cman": OK
Loading filesystem "ocfs2": OK
Starting ocfs2_controld.cman: OK

ub-ocfs:~# mount /dev/drbd/by-res/wwwdata /opt/

ub-ocfs:~# service drbd status
drbd driver loaded OK; device status:
version: 8.3.13 (api:88/proto:86-96)
srcversion: 697DE8B1973B1D8914F04DB 
m:res      cs         ro               ds                 p  mounted  fstype
1:wwwdata  Connected  Primary/Primary  UpToDate/UpToDate  C  /opt     ocfs2

ub-ocfs:~# ls /opt/
local  lost+found

ub-ocfs:~# ls /opt/local
Segmentation fault

ub-ocfs:~# ps fa
  PID TTY      STAT   TIME COMMAND
 2472 pts/2    Ss     0:00 -bash
 2529 pts/2    R+     0:00  \_ ps fa
 2299 pts/1    Ss     0:00 -bash
 2356 pts/1    S+     0:00  \_ -bash
 2361 pts/1    D+     0:00      \_ ls -l /opt/local/etc /opt/local/games /opt/local/include /opt/local/leo1....


the script ls -l /opt/local/*

ub-ocfs:~# cat /opt/local/leo-ocfs6.sh
date ; echo -n
hostname
ls -l
ls -l /opt/local/le*
ls -l /opt/local/*


I can work normal

ub-ocfs1:~# rm -r /opt/local/bin
ub-ocfs1:~# mkdir /opt/local/etc/bin
ub-ocfs1:~# ls /opt/local/leo*
/opt/local/leo1  /opt/local/leo3  /opt/local/leo-ocfs   /opt/local/leo-ocfs2  /opt/local/leo-ocfs4  /opt/local/leo-ocfs6
/opt/local/leo2  /opt/local/leo4  /opt/local/leo-ocfs1  /opt/local/leo-ocfs3  /opt/local/leo-ocfs5  /opt/local/leo-ocfs6.sh


but resource is busy if I want restart or unload

ocfs:~# service o2cb unload 
Stopping ocfs2_controld.cman: /sbin/start-stop-daemon: warning: this system is not able to track process names
longer than 15 characters, please use --exec instead of --name.
Failed
Unable to unload modules as the cluster is still online


because '2361 pts/1    D+     0:00      \_ ls -l /opt/local/' is in  'D    uninterruptible sleep (usually IO)'

if I want the control back I need reboot host, 

anybody have another solution ?-:-(

by 
  leopoldo tosi