lvm_blk_ioctl: unknown command 0x24b

I got the "lvm_blk_ioctl: unknown command 0x24b" error while initializing a LV with

# mke2fs -c -j /dev/v0/l0

I could only find a similar report of error, but now anser and explanation.

I also got a lot of error mesages for each existing /dev/nb* entry during vgscan. It seams that vgscan needs that there realy exist a nb-device for each entry in /dev

Thank's for any help or work arround. At least I would like to know if I can use a sistem with this lvm_blk_ioctl error at mke2fs time, or if there is some patch or correction I can do.

Alex