raid 4, and bitmap.

Hello, list, Neil,

I try to add bitmaps to raid4, and mdadm is done this fine.
In the /proc/mdstat shows this, and it is really works well.

But on reboot, the kernel drops the bitmap(, and resync the entire array if
it is unclean). :(

It is still uncomplete now? (2.6.16-rc1)

Thanks,
Janos