What does "xlog_state_do_callback: looping " mean?

[David Sparks <daves@xxxxxxxxxxxxxxx>]

I have a server where the `dmesg` is full of:

Filesystem "hda4": xlog_state_do_callback: looping 10
Filesystem "hda4": xlog_state_do_callback: looping 20
Filesystem "hda4": xlog_state_do_callback: looping 10
Filesystem "hda4": xlog_state_do_callback: looping 10
Filesystem "hda4": xlog_state_do_callback: looping 10
Filesystem "hda4": xlog_state_do_callback: looping 20
[...]

The hda4 partition contains the /var tree.

I ran xfs_check and it didn't find any problems.  The machine is a 
gateway MTA and doesn't have any noticeable issues.
Kernel version:
Linux mx3 2.6.5-gentoo-r1 #1 Wed Jun 16 11:27:10 Local time zone must be 
set--see zic manu i686 Pentium III (Coppermine) GenuineIntel GNU/Linux
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda3              15G  2.8G   13G  19% /
none                  189M     0  189M   0% /dev/shm
/dev/hda4              14G  4.0G  9.4G  30% /var



Googling for 'xlog_state_do_callback' didn't really go into any depth of 
what this means.
Can anyone enlighten me?

Thanks,

ds