[pymvpa] Searchlight hyperalignment crashes: "featuresBus error"

[Michael Bannert]

Dear Swaroop, dear PyMVPA users,

I'm running a couple of searchlight hyperalignments but some of them 
crash. The error message is "featuresBus error". What does this mean? 
What could be causing this error?

Thanks and best,
Michael

PS: Here is the output of wtf()
Current date:   2017-10-05 13:35
PyMVPA:
  Version:       2.6.0
  Hash:          $Format:%H$
  Path: 
/path/to/user/home/anaconda2/lib/python2.7/site-packages/mvpa2/__init__.pyc
  Version control (GIT):
  GIT information could not be obtained due 
"/path/to/user/home/anaconda2/lib/python2.7/site-packages/mvpa2/.. is 
not under GIT"
SYSTEM:
  OS:            posix Linux 3.10.0-514.10.2.el7.x86_64 #1 SMP Fri Mar 3 
00:04:05 UTC 2017
  Distribution:  centos/7.2.1511/Core
EXTERNALS:
  Present:       cPickle, ctypes, good 
scipy.stats.rv_continuous._reduce_func(floc,fscale), good 
scipy.stats.rv_discrete.ppf, griddata, gzip, h5py, hdf5, ipython, 
libsvm, libsvm verbosity control, lxml, matplotlib, mdp, mdp ge 2.4, 
nibabel, nose, numpy, numpy_correct_unique, pprocess, pylab, pylab 
plottable, pywt, pywt wp reconstruct, running ipython env, scipy, 
scipy.weave, skl, statsmodels
  Absent:        afni-3dinfo, atlas_fsl, atlas_pymvpa, cran-energy, 
datalad, elasticnet, glmnet, good scipy.stats.rdist, hcluster, joblib, 
lars, liblapack.so, mass, mock, nipy, nipy.neurospin, numpydoc, openopt, 
pywt wp reconstruct fixed, reportlab, rpy2, sg ge 0.6.4, sg ge 0.6.5, 
sg_fixedcachesize, shogun, shogun.krr, shogun.lightsvm, shogun.mpd, 
shogun.svmocas, shogun.svrlight, weave
  Versions of critical externals:
   ctypes      : 1.1.0
   h5py        : 2.7.0
   hdf5        : 1.8.17
   ipython     : 4.0.0
   lxml        : 3.6.0
   matplotlib  : 1.5.1
   mdp         : 3.5
   nibabel     : 2.1.0
   numpy       : 1.11.0
   pprocess    : 0.5.1
   pywt        : 0.5.2
   scipy       : 0.17.0
   skl         : 0.17.1
  Matplotlib backend: Qt4Agg
RUNTIME:
  PyMVPA Environment Variables:
    PyMVPA Runtime Configuration:
   [general]
   verbose = 1

   [externals]
   have running ipython env = yes
   have ipython = yes
   have numpy = yes
   have scipy = yes
   have matplotlib = yes
   have h5py = yes
   have reportlab = no
   have weave = no
   have scipy.weave = yes
   have nibabel = yes
   have good scipy.stats.rdist = no
   have good scipy.stats.rv_discrete.ppf = yes
   have good scipy.stats.rv_continuous._reduce_func(floc,fscale) = yes
   have pylab = yes
   have lars = no
   have elasticnet = no
   have glmnet = no
   have skl = yes
   have ctypes = yes
   have libsvm = yes
   have shogun = no
   have joblib = no
   have openopt = no
   have mdp = yes
   have mdp ge 2.4 = yes
   have nipy = no
   have statsmodels = yes
   have cran-energy = no
   have pywt = yes
   have griddata = yes
   have nipy.neurospin = no
   have lxml = yes
   have afni-3dinfo = no
   have atlas_fsl = no
   have atlas_pymvpa = no
   have cpickle = yes
   have datalad = no
   have gzip = yes
   have hcluster = no
   have hdf5 = yes
   have liblapack.so = no
   have libsvm verbosity control = yes
   have mass = no
   have mock = no
   have nose = yes
   have numpy_correct_unique = yes
   have numpydoc = no
   have pprocess = yes
   have pylab plottable = yes
   have pywt wp reconstruct = yes
   have pywt wp reconstruct fixed = no
   have rpy2 = no
   have sg ge 0.6.4 = no
   have sg ge 0.6.5 = no
   have sg_fixedcachesize = no
   have shogun.krr = no
   have shogun.lightsvm = no
   have shogun.mpd = no
   have shogun.svmocas = no
   have shogun.svrlight = no
  Process Information:
   Name:	ipython
   State:	R (running)
   Tgid:	24326
   Ngid:	0
   Pid:	24326
   PPid:	24284
   TracerPid:	0
   Uid:	5337	5337	5337	5337
   Gid:	3913	3913	3913	3913
   FDSize:	256
   Groups:	1011 3913
   VmPeak:	 1201456 kB
   VmSize:	 1200436 kB
   VmLck:	       0 kB
   VmPin:	       0 kB
   VmHWM:	  198808 kB
   VmRSS:	  198808 kB
   RssAnon:	  163260 kB
   RssFile:	   35548 kB
   RssShmem:	       0 kB
   VmData:	  296376 kB
   VmStk:	     156 kB
   VmExe:	       4 kB
   VmLib:	  180776 kB
   VmPTE:	    1792 kB
   VmSwap:	       0 kB
   Threads:	10
   SigQ:	0/257324
   SigPnd:	0000000000000000
   ShdPnd:	0000000000000000
   SigBlk:	0000000000000000
   SigIgn:	0000000001001000
   SigCgt:	0000000180010002
   CapInh:	0000000000000000
   CapPrm:	0000000000000000
   CapEff:	0000000000000000
   CapBnd:	0000001fffffffff
   CapAmb:	0000000000000000
   Seccomp:	0
   Cpus_allowed:	ffffff
   Cpus_allowed_list:	0-23
   Mems_allowed: 
00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000003
   Mems_allowed_list:	0-1
   voluntary_ctxt_switches:	9758
   nonvoluntary_ctxt_switches:	1601