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

[Krzysztof Adamski]

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.

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