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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050302 Firefox/1.0.1 Fedora/1.0.1-1.3.2

Description of problem:
Using an Adaptec 2230SLP RAID controller with 2 73GB disks in a RAID-1 setup. If the array is not "optimal" then RHEL will quit responding to keyboard, mouse and network (system hung). System is in a state were fib_adapter_complete() calls acc_queue_get() which in turns calls aac_get_entry(), acc_get_entry() is always 
returning 0 causing the driver to be stuck in the following loop in aac_queue_get():

else if (qid == AdapHighRespQueue || qid == AdapNormRespQueue)
{
        while(!aac_get_entry(dev, qid, &entry, index, nonotify)) 
	{
			/* if no entries wait for some if caller wants to */
                        DPRINTK("RespQueue: No entries, wait...\n");
	}
}


Version-Release number of selected component (if applicable):
kernel-2.4.21-32.0.1.EL

How reproducible:
Always

Steps to Reproduce:
1. Boot with RAID array not optimal.
2.
3.
  

Actual Results:  System will hang, no response from keyboard, mouse, or networking.

Expected Results:  System should boot up and function as normal.

Additional info:

Based upon Alan Cox's comments for 2.6 http://lkml.org/lkml/2005/1/14/252, tried
to remove the aac_handle_aif() code from the 2.4 driver, the system still hung
when booting with raid not optimal. Also turned on dprintk and added some more 
debug statements, console messages attached.