Description of problem:
When running module load/unload and simple GDB testing for a 4.6.z errata
Kernel, dell-pe1650-1.test.redhat.com had lots of I/O errors,

http://rhts.redhat.com/cgi-bin/rhts/test_log.cgi?id=3612345

percraid:Fatal Error: See system event log
aacraid: Host adapter reset request. SCSI hang ?
percraid: Host adapter dead -3
SCSI error : <0 0 0 0> return code = 0x6000000
end_request: I/O error, dev sda, sector 1181
Buffer I/O error on device sda1, logical block 559
lost page write due to I/O error on sda1
scsi0 (0:0): rejecting I/O to offline device
scsi0 (0:0): rejecting I/O to offline device
scsi0 (0:0): rejecting I/O to offline device
Buffer I/O error on device dm-0, logical block 176601
...

Looks like a hardward problem?

Version-Release number of selected component (if applicable):
kernel-2.6.9-67.0.22.EL

How reproducible:
unable to reproduce