Bug 1456121

Description of problem:
vdsm vds ERROR failed to retrieve hardware info

Version-Release number of selected component:
vdsm-4.19.15-1.el7ev.x86_64
libvirt-3.2.0-6.el7.x86_64
qemu-kvm-rhev-2.9.0-6.el7.x86_64


How reproducible:
always

Steps to Reproduce:
add the host to rhevm

Actual results:
1.On rhevm:
VDSM host-B command GetHardwareInfoVDS failed: Failed to read hardware information

2.# tail -f /var/log/vdsm/vdsm.log |grep ' ERROR '
2017-05-26 06:34:09,944-0400 ERROR (jsonrpc/7) [vds] failed to retrieve hardware info (API:1436)

3.# Systemctl status vdsmd -l
Traceback (most recent call last):
File "/usr/share/vdsm/API.py", line 1433, in getHardwareInfo
hw = supervdsm.getProxy().getHardwareInfo()
File "/usr/lib/python2.7/site-packages/vdsm/supervdsm.py", line 53, in __call__
return callMethod()
File "/usr/lib/python2.7/site-packages/vdsm/supervdsm.py", line 51, in <lambda>
**kwargs)
File "<string>", line 2, in getHardwareInfo
File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod
raise convert_to_error(kind, result)
IndexError: list assignment index out of range


Expected results:
Should successfully get hardware info

Additional info:
# lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                32
On-line CPU(s) list:   0-31
Thread(s) per core:    2
Core(s) per socket:    8
Socket(s):             2
NUMA node(s):          2
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 47
Model name:            Intel(R) Xeon(R) CPU E7- 4830  @ 2.13GHz
Stepping:              2
CPU MHz:               2129.000
CPU max MHz:           2129.0000
CPU min MHz:           1064.0000
BogoMIPS:              4256.12
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              24576K
NUMA node0 CPU(s):     0-7,16-23
NUMA node1 CPU(s):     8-15,24-31
Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt aes lahf_lm epb tpr_shadow vnmi flexpriority ept vpid dtherm ida arat