Got this HP advisory Document ID: c02758009, though its Redhat related, thought it would be useful for someone out there.
SUPPORT COMMUNICATION – CUSTOMER ADVISORY
Document ID: c02758009
Advisory: HP Smart Array Controllers – CUSTOMER ACTION REQUIRED for Certain HP Smart Array Controllers to Ensure Pending Writes to Storage Devices Complete Properly if Attempting to Use the Linux Kdump Facility
NOTICE: The information in this document, including products and software versions, is current as of the Release Date. This document is subject to change without notice.
Release Date: 2011-03-16
Last Updated: 2011-03-16
IMPORTANT : Pending writes to storage devices may not complete properly as detailed below if the kdump facility is used. Using the kdump facility could leave the server in an unstable condition, which could potentially result in an inconsistent filesystem state. By disregarding this notification, the customer accepts the risk of incurring potential related errors.
The Linux kdump facility fails to execute properly when used on HP ProLiant servers running Linux and configured with certain Smart Array controllers using certain versions of the cciss device drivers. Read the rest of this entry »