2006-07-04 16:21:11

by Bernd Schubert

[permalink] [raw]
Subject: client oddity

Hi,

my collegue just showed me something very strange:

bernd@zuse bernd>ll -id /home/frank/work/mctdh83
668731 drwxr-xr-x 14 frank user 560 2006-05-18 14:41 /home/frank/work/mctd=
h83

bernd@gauss bernd>ll -id /home/frank/work/mctdh83
15685682 drwxr-xr-x 14 frank user 584 2006-07-04 16:17 /home/frank/work/mc=
tdh83

bernd@hamilton1 bernd>ll -id /home/frank/work/mctdh83
15685682 drwxr-xr-x 14 frank user 584 2006-07-04 16:17 /home/frank/work/mc=
tdh83

bernd@hamilton1 bernd>ll -id /home/frank/work/mctdh83.old
668731 drwxr-xr-x 14 frank user 560 2006-05-18 14:41 /home/frank/work/mctd=
h83.old

and on zuse also for mctdh83.old:

bernd@zuse bernd>ll -id /home/frank/work/mctdh83.old
668731 drwxr-xr-x 14 frank user 560 2006-05-18 14:41 /home/frank/work/mctd=
h83.old


So on zuse mctdh83 is just like a directory hard linked to mctdh83.old


Here zuse and gauss are NFS clients of the server hamilton.

Renaming mctdh83 to mctdh83.0 will give correct results on client zuse =

(and other clients and server):

15685682 drwxr-xr-x 14 frank user 584 2006-07-04 16:17 /home/frank/work/mc=
tdh83.0
668731 drwxr-xr-x 14 frank user 560 2006-05-18 14:41 /home/frank/work/mc=
tdh83.old

Renaming mctdh83.0 back to mctdh83 will give back the oddity on host zuse.


The inode generation numbers are also different, =


bernd@hamilton1 inode_gen>./get_igen /home/frank/work/mctdh83
/home/frank/work/mctdh83: 74340560

bernd@hamilton1 inode_gen>./get_igen /home/frank/work/mctdh83.old
/home/frank/work/mctdh83.old: 177886

I also already checked that /home/frank/work/mctdh83 is also *no* bind moun=
t.

After =

cp -a mctdh83.old mctdh83.old.test
mv mctdh83.old.test mctdh83.old
the problems on client zuse disappeared.


Any idea whats going on here? So far I couldn't reproduce for other =

directories.

bernd@zuse bernd>uname -a
Linux zuse 2.6.16.1-tc3 #2 SMP PREEMPT Thu Mar 30 14:18:59 CEST 2006 i686 G=
NU/Linux

-tc3 is only for internal configuration purposes, this is just a vanilla ke=
rnel.

Thanks,
Bernd

-- =

Bernd Schubert
PCI / Theoretische Chemie
Universit=E4t Heidelberg
INF 229
69120 Heidelberg


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