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Re: XFS: file system too large to be mounted on this system. 2.6.30.1

To: Krzysztof Adamski <k@xxxxxxxxxxx>
Subject: Re: XFS: file system too large to be mounted on this system. 2.6.30.1
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Wed, 22 Jul 2009 23:19:42 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <1248313295.4730.2.camel@xxxxxxxxxxxxxxxxxx>
References: <1248313295.4730.2.camel@xxxxxxxxxxxxxxxxxx>
User-agent: Thunderbird 2.0.0.22 (Macintosh/20090605)
Krzysztof Adamski wrote:
> I got "XFS: file system too large to be mounted on this system." when
> mounting my not to large file system.
> 
> I'm running Debian lenny with a self compiled kernel, 32 bit userland
> distribution.
> 
> I have both 32 and 64 bit kernels of the 2.6.30.1 installed. I was
> running the 64bit kernel for a while, I needed to switch to the 32 bit
> version to run VBox. After reboot to 32bit kernel, one filesystem would
> not mount. The xfs_repair did not find any good superblocks.
> Fortunately booting the 64bit kernel allowed mounting of this
> filesystem.
> This is a df while running 64bit kernel:
> /dev/mapper/big--raid-file--store
>                xfs   2558652416 2540114040  18538376 100% /file-store
> /dev/sda1      xfs   195263012 194723636    539376 100% /disks/a1
> 
> The interesting part is that /disks/a1 did not have problem with
> mounting on the 32bit kernel, just the /file-store.


Do you have CONFIG_LBD (or maye now CONFIG_LBDAF) set on the newer
32-bit kernel?  You'll need that.

If you do ....

file-store is about 2T?  What is the filesystem block size?  (xfs_info
on the mountpoint would tell you)

The test is looking at whether the nr of filesystem blocks overflows
based on CONFIG_LBD or not...

and the function hasn't changed since 2007.... hrm.

I'll put my money on CONFIG_LBDAF.

-Eric

> When running 2.6.28.4 32bit kernel I have no problem with mounting this
> filesystem. So something broke between 2.6.28.4 and 2.6.30.1
> 
> I can provide any other info.
> 
> K
> 
> 
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