zfs discuss - Jul 2008 - ''referenced'' bigger than ''volsize''?

Hi,

a

zfs create -V 1M pool/foo
dd if=/dev/random of=/dev/zvol/rdsk/pool/foo bs=1k count=1k

(using Nevada b94) yields

zfs get all pool/foo
pool/foo  used             1,09M                 -
pool/foo  referenced       1,09M                 -
pool/foo  volsize          1M                    -
pool/foo  refreservation   1M                    local

Why is ''referenced'' bigger than ''volsize''?
Is this a bug or a feature?

Regards,
   gero42

PS: It''s good to see that the EOF bug is fixed with b94. Before that I
could dd 1T of data in a 1M volume...
 
 
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