RHEL6: DM Multipath device partitioning

Hi All

Has anyone expereniced any issues with trying to partition a DM multipath disk device under RHEL6?

At the moment, I'm noting that some of the individual devices paths will not pick up partition table changes made on against either the multipath device or (as Redhat has previously suggested) against another one of the paths.

partprobe, kpartx and partx all fail to propergate out partition information to the other paths....Reboot seems to be the only sure way, which is not ideal on a production system.

Seems a lot less reliable that partitioning a DM multipath device under RHEL5.

Appreciate your thoughts and suggestions.

Cheers

Jason