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On 12-Nov-04, at 10:21 PM, Andreas Wrede wrote:
[SNIP]
> On both isp(4) controllers however, no devices are found during 
> probing, even though the XServe RAID box is attached, up and running. 
> Once the boot completes, 'scsictl /dev/scsibus[12] scan any any' will 
> find the devices without a problem.

> So I build a kernel with 'options     SCSI_DELAY=10', as delaying the 
> probe appeared to work.
> I found that the scsi probes proceed with virtually no delay, looks 
> like the 10 second delay is either being ignored or I misunderstand 
> something:

The above problem only occurs with a MP kernel - a uniprocessor kernel 
probes the isp(4) attached devices properly.

Unfortunatly, both kernels produce a fatal page fault in supervisor 
mode panic during high volume I/O
to and from the XServe RAID arrays. See kern/28291.
-- 
	aew

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