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Date: Tue, 04 Jun 2013 17:16:12 -0500
From: Brian King <brking@linux.vnet.ibm.com>
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To: Robert Knight <knight@princeton.edu>
Subject: Re: IBM OpenPower 720 ipr driver woes
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Cc: linuxppc-dev@lists.ozlabs.org, Wendy Xiong <wenxiong@linux.vnet.ibm.com>
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On 06/03/2013 08:40 PM, Robert Knight wrote:
> [   21.938847] ipr: IBM Power RAID SCSI Device Driver version: 2.5.4 (July 11, 2
> 012)
> [   21.939061] ipr 0001:d0:01.0: Found IOA with IRQ: 151
> [   21.942276] ipr 0001:d0:01.0: Write of cache line size failed
> [   21.942584] ipr: probe of 0001:d0:01.0 failed with error -5

This looks to be the reason the ipr driver is failing to load. Not sure why this
is failing, I don't think this code has changed for a very long time. Arguably,
this shouldn't be a fatal error for the driver. Wendy - do you have access to
one of these systems so we could take a look at this? 

-Brian

-- 
Brian King
Power Linux I/O
IBM Linux Technology Center