On 6/5/2013 6:01 PM, wenxiong@linux.vnet.ibm.com wrote:

Quoting Robert Knight [off-list ref]:

quoted

Sometime after kernel 3.3.4, Fedora 17 running on an IBM OpenPower 
720 stopped being able to read the SCSI disks with an error 
concerning a return code -1.  In the updates since, it has not 
resumed working.

Can you tell me which kernel you saw this issue(I assumed that 3.3.4 
works fine).

kernel 3.8.11-100, for example

Also can you check your system firmware for me?

I don't know how to do that.  lsvpd?