IBM OpenPower 720 ipr driver woes

[wenxiong at linux.vnet.ibm.com]

Quoting Robert Knight <knight at princeton.edu>:

> 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).
Also can you check your system firmware for me?

Thanks,
Wendy