zfs discuss - Jan 2009 - Zpool export failure or interrupt messes up mount ordering?

Hi,

I have the following setup that worked fine for a couple of months.

(root disk)
- zfs rootpool (build 100)

(on 2 mirrored data disks:)
- datapool/export
- datapool/export/home
- datapool/export/fotos
- datapool/export/fotos/2008

Now I tried to live upgrade from build 100 to 106 things got messy. So I 
decided to do a clean install for build 106. The things that I''d like
to
know about why the datapool lost its mount ordering. Because when I 
tried to import the zpool the mount ordering was messed up. I mounted 
datapool/export/fotos/2008 before trying to mount datapool/export/fotos. 
And so the latter failed to mount. I fixed it by unmounting, removing 
the mountpoints and mounting them in the right order, so its fixed now. 
But I''d like to know what could cause the mount order to get messed up?

I have a theory....my zpool export failed/hung was interrupted due to 
the automounter hogging datapool/export/home. Could an 
failed/interrupted/hung zpool export can corrupt the mount ordering on 
the next zpool import?

Thanks,

..Remco