Description of Problem:
AMI 1600 megaraid driver causes a system hang when loaded twice.

Version-Release number of selected component (if applicable):
megaraid driver v1.17a

How Reproducible:
Always


Steps to Reproduce:
1. insmod megaraid driver
2. rmmod megaraid
3. insmod megaraid
4. <hang>


Actual Results:
System hang

Expected Results:
driver should load and unload repeatedly and should not hang system. 
Problem seen with version v1.15a of megaraid driver, not seen with v1.15d 
of driver.  Has reappeared with version v.17a of driver. 


Additional Information:
Problem seen with version v1.15a of megaraid driver, not seen with v1.15d 
of driver.  Has reappeared with version v.17a of driver. 

Note: System hang occurs on second load of driver with >4GB system 
memory.  Will eventually fail with <4GB system memory if put into 
load/unload loop.

while true; do; insmod megaraid; wait; rmod megaraid; wait; done;