ReiserFS on RedHat 8.0 - "dead inode read from disk", but disks are fine...

[Manuel Arostegui Ramirez]

El Jueves, 3 de Agosto de 2006 09:56, Richard Hobbs escribió:
> Hello,
>
> I have a RH8 server here with 2 identical Maxtor 250GB hard drives. I am
> using Soft-RAID to mirror every single partition on these drives (RAID 1).
>
> This machine does appear to function ok, but i am seeing lots of the
> following messages on the console:
>
> ============================================================
> [root at stg-it2 root]# dmesg | tail -10
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1317 11266
> 0x0 SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1317 10879
> 0x0 SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1317 10879
> 0x0 SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1251 6078 0x0
> SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1317 5380 0x0
> SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1317 8526 0x0
> SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1317 6650 0x0
> SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1251 16144
> 0x0 SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1194 16868
> 0x0 SD]. This is likely to be race with knfsd. Ignore
> vs-13075: reiserfs_read_inode2: dead inode read from disk [1251 5222 0x0
> SD]. This is likely to be race with knfsd. Ignore
> [root at stg-it2 root]#
> ============================================================
>
> I have used Maxtor's disk-checking utility, which has certified both
> drives as error-free, but these errors continue to appear.
>
> Can anyone please let me know why this is happening and what can be done
> about it?
>
> Thank you in advance,
> Richard.
>

Messages about read_inode2() ) you see are harmless, so
you can safely ignore them.

Which kernel are you running? 
That's a well-known bug of 2.4.18, and it's fixed at linux-2.4.19-pre7, either 
2.5 kernels.

That warning maybe is due to a file is being deleted by unlink(2). iput() 
removes inode from hash table and sleeps doing IO truncating file body. 
On-disk inode (stat-data) is still intact. Last directory entry for this file 
is already removed.

Greetings.

-- 
Manuel Aróstegui Ramírez.

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