fatal error -- xfs_repair: duplicate inode range

[Michael Best <mbest@emergence.com>]

It appears that either the mailing list manager threw away my earlier
posting to the mailing list or that there is no hope for recovery of my
filesystem.

Any pointers would be appreciated.  ssh access to this machine is
available.  

Trying to get a dump of the filesystem right now with dd.

-----

On the failed system and on this new system I am running the SGI_XFS
1.0.2 +
Redhat 7.2 installer.

-----

I was called Sunday morning for a machine that had failed.

You could ping it from the network but nothing else.

I rebooted it, and got a XFS Page alloc kernel panic I believe. (unsure
it's been hours since then).

I rebooted it in single user mode, read some logfiles and then rebooted
it into multi user mode.

A short while later the machine appeared to fail again, when rebooted it
could no longer load the initrd in order to mount the root (/)
filesystem to boot.

I used a Mandrake 8.2rc1 disc to boot the system, after finding the
mount command on the 1.0.2 installer disc was hopeless.

I ran XFS repair, which suggested something good had happened.  And then
it suggested mounting it.  No luck.  It suggested I could use xfs_repair
-L to try and mount it after that.

I tried that, no luck.  All further attempts produce output like this: 

fatal error -- xfs_repair:  duplicate inode range

Here are the logs from xfs_check and xfs_repair for this filesystem.

http://www.emergence.com/xfs_trouble/xfs_check_sda5.txt
http://www.emergence.com/xfs_trouble/xfs_repair_sda5.txt

The machine was originally running a single Quantum Atlas V on Ultra 160
Scsi chain.  I have moved this machine to two Maxtor 20G drives with
Raid 1 mirroring.  The Scsi chain is still in the machine with the
broken filesystem drive and I can make it available/prepare a filesystem
dump (perhaps someone can explain how to do that).  Hopefully I have
enough space on my drive for that.

I saw other people with this error in the mailing list archives but
didn't see if there was a solution to this problem.

-- 
Michael Best
Systems Administrator           ph 780-413-6397 x230
Emergence By Design            fax 780-433-7548
#200, 11209 Jasper Avenue     toll 866-860-2666
Edmonton, Alberta, T5K 0L5