partition table getting lost on RAID5

[kamesh waran]

Hi,
I am using parted-1.8.2 on my RAID5 machines running 2.6.23 kernel.
When i reboot the machines, occasionally partition table is getting
lost. I do have below configurations on my kernel configs.

CONFIG_PARTITION_ADVANCED=y
CONFIG_EFI_PARTITION=y

Can you please help ? Is it a known issue on 1.8.2 version ?
Or do i need to have any specific kernel configuration ?

Thanks,
Kamesh