Description of problem:

Running rteval on a system with hyperthreads disabled using the boot command line argument 'nosmt' results in crash while trying to place a measurement thread on an offline cpu.


Version-Release number of selected component (if applicable):
rteval-2.14-11.el7.noarch

How reproducible:
Always

Steps to Reproduce:
1. Add 'nosmt' to grub command line (turns off hyperthreading)
2. reboot
3. run rteval, crashes trying to use offline cpu

Additional info:

Backtrace and additional info:
[root@realtime-03 ~]# cd /tmp
[root@realtime-03 tmp]# rteval --duration=1m
got system topology: 2 node system (10 cores per node)
Traceback (most recent call last):
  File "/usr/bin/rteval", line 302, in <module>
    rteval.Prepare(rtevcfg.onlyload)
  File "/usr/lib/python2.7/site-packages/rteval/__init__.py", line 157, in Prepare
    self._measuremods.Setup(params)
  File "/usr/lib/python2.7/site-packages/rteval/modules/measurement/__init__.py", line 182, in Setup
    mp.Setup(modname)
  File "/usr/lib/python2.7/site-packages/rteval/modules/measurement/__init__.py", line 58, in Setup
    modobj = self._InstantiateModule(modname, self._cfg.GetSection(modname))
  File "/usr/lib/python2.7/site-packages/rteval/modules/__init__.py", line 417, in _InstantiateModule
    return self.__modules.InstantiateModule(modname, modcfg, modroot)
  File "/usr/lib/python2.7/site-packages/rteval/modules/__init__.py", line 332, in InstantiateModule
    return mod.create(modcfg, self.__logger)
  File "/usr/lib/python2.7/site-packages/rteval/modules/measurement/cyclictest.py", line 420, in create
    return Cyclictest(params, logger)
  File "/usr/lib/python2.7/site-packages/rteval/modules/measurement/cyclictest.py", line 212, in __init__
    self.__cyclicdata[core].description = info[core]['model name']
KeyError: '20'
[root@realtime-03 tmp]# lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                40
On-line CPU(s) list:   0-19
Off-line CPU(s) list:  20-39
Thread(s) per core:    1
Core(s) per socket:    10
Socket(s):             2
NUMA node(s):          2
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 63
Model name:            Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz
Stepping:              2
CPU MHz:               2297.477
BogoMIPS:              4594.95
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              25600K
NUMA node0 CPU(s):     0-9
NUMA node1 CPU(s):     10-19
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 eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm epb intel_ppin ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm ida arat pln pts spec_ctrl intel_stibp flush_l1d
[root@realtime-03 tmp]# cat /proc/cmdline 
BOOT_IMAGE=/vmlinuz-3.10.0-957.15.1.rt56.927skipktimersoftd1.el7.x86_64 root=/dev/mapper/rhel_realtime--03-root ro crashkernel=auto rd.lvm.lv=rhel_realtime-03/root rd.lvm.lv=rhel_realtime-03/swap console=ttyS1,115200n81 log_buf_len=1M nosmt isolcpus=10-19 LANG=en_US.UTF-8
[root@realtime-03 tmp]# rpm -q rteval
rteval-2.14-11.el7.noarch