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Re: 3.9.0: XFS rootfs corruption

To: CAI Qian <caiqian@xxxxxxxxxx>
Subject: Re: 3.9.0: XFS rootfs corruption
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Tue, 4 Jun 2013 14:36:10 +1000
Cc: Eric Sandeen <sandeen@xxxxxxxxxxx>, xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <131268379.10596360.1370246946902.JavaMail.root@xxxxxxxxxx>
References: <1871204531.7584919.1367826613792.JavaMail.root@xxxxxxxxxx> <5187BEA5.4040107@xxxxxxxxxxx> <647316680.8155487.1367913231441.JavaMail.root@xxxxxxxxxx> <51895115.90108@xxxxxxxxxxx> <131268379.10596360.1370246946902.JavaMail.root@xxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Mon, Jun 03, 2013 at 04:09:06AM -0400, CAI Qian wrote:
[snip]

> :/# xfs_repair -L  /dev/mapper/rhel_ibm--p720--01--lp4-root
> Phase 1 - find and verify superblock...
> Phase 2 - using internal log
....

Now that you've repaired the filesystem, can you reproduce the
problem?

It looks somewhat like the same bug we fixed in 3.8-rc4 that Dave
Jones hit (37f1356 xfs: recalculate leaf entry pointer after
compacting a dir2 block), but if you've never repaired the damage on
disk that this problem caused then you'll just keep tripping over
it.

So, can you reproduce the problem now on this machine/filesystem?

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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