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

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Hello,

Kernel version is as follows...

  [rhobbs@stg-it2 rhobbs]$ uname -r
  2.4.20-28.8smp
  [rhobbs@stg-it2 rhobbs]$

Is this *definitely* nothing to worry about at all then? What causes it
to happen?

I know you said it was possibly caused by a file being deleted with
"unlink(2)", but how would i know if this is happening?

Thanks again,
Richard.


Manuel Arostegui Ramirez wrote:
> 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@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@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.
> 

-- 
Richard Hobbs (Systems Administrator)
Toshiba Research Europe Ltd. - Speech Technology Group
Web: http://www.toshiba-europe.com/research/
Normal Email: richard.hobbs@xxxxxxxxxxxxxxxxx
Mobile Email: mobile@xxxxxxxxxxxxxx
Tel: +44 1223 376964        Mobile: +44 7811 803377

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