This bug has been copied from bug #494658 and has been proposed
to be backported to 5.3 z-stream (EUS).
* when using the aic94xx driver, a system with SATA drives may not boot
due to a bug in the libsas module, which continually added and removed a
phy due to a port's SAS address mismatch.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.