DPARSFA segment error

Warning: Matrix is singular, close to singular or badly scaled. Results may be

inaccurate. RCOND = NaN. 

> In expm>PadeApproximantOfDegree at 123

  In expm at 39

  In spm_maff>P2M at 191

  In spm_maff>affreg at 154

  In spm_maff at 27

  In spm_preproc at 147

  In spm_run_preproc at 19

  In matlabbatch/private/cfg_run_cm at 29

  In cfg_util>local_runcj at 1510

  In cfg_util at 830

  In spm_jobman at 217

  In DPARSFA_run>(parfor body) at 1382

  In parallel_function>make_general_channel/channel_general at 867

  In remoteParallelFunction at 31 

Warning: Matrix is singular, close to singular or badly scaled. Results may be

inaccurate. RCOND = NaN. 

> In expm>PadeApproximantOfDegree at 123

  In expm at 39

  In spm_maff>P2M at 197

  In spm_maff>affreg at 154

  In spm_maff at 27

  In spm_preproc at 147

  In spm_run_preproc at 19

  In matlabbatch/private/cfg_run_cm at 29

  In cfg_util>local_runcj at 1510

  In cfg_util at 830

  In spm_jobman at 217

  In DPARSFA_run>(parfor body) at 1382

  In parallel_function>make_general_channel/channel_general at 867

  In remoteParallelFunction at 31 

Failed  'Segment'

Error using schur

Input to SCHUR must not contain NaN or Inf.

In file "/home/insula/Bin/matlab/toolbox/matlab/matfun/sqrtm.m" (???), function "sqrtm" at line 33.

In file "/home/insula/DataTools/spm8/spm_maff.m" (v4178), function "M2P" at line 162.

In file "/home/insula/DataTools/spm8/spm_maff.m" (v4178), function "affreg" at line 78.

In file "/home/insula/DataTools/spm8/spm_maff.m" (v4178), function "spm_maff" at line 27.

In file "/home/insula/DataTools/spm8/spm_preproc.m" (v4677), function "spm_preproc" at line 148.

In file "/home/insula/DataTools/spm8/config/spm_run_preproc.m" (v4185), function "spm_run_preproc" at line 19.

 

The following modules did not run:

Failed: Segment

 

Error using parallel_function (line 589)

 

Job execution failed. The full log of this run can be found in MATLAB command window, starting with the

lines (look for the line showing the exact #job as displayed in this error message)

------------------

Running job #1

------------------

 

 

Error stack:

cfg_util.m at 835

spm_jobman.m at 217

DPARSFA_run>(parfor body) at 1382

 

Error in DPARSFA_run (line 1359)

        parfor i=1:AutoDataProcessParameter.SubjectNum

 

Error in DPARSFA>pushbuttonRun_Callback (line 1579)

    [Error]=DPARSFA_run(handles.Cfg);

 

Error in gui_mainfcn (line 96)

        feval(varargin{:});

 

Error in DPARSFA (line 33)

    gui_mainfcn(gui_State, varargin{:});

 

Error while evaluating uicontrol Callback

Warning: Run spm_jobman('initcfg'); beforehand 

> In spm_jobman at 107

  In DPARSFA_run at 1447

  In DPARSFA>pushbuttonRun_Callback at 1579

  In gui_mainfcn at 96

  In DPARSFA at 33 

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3. 由于数据样本量太大，我希望能用老的 unified segmentation 的方法来跑，这样速度会比较快。但是由于上面的问题，没法正常运行。我更新了SPM8到最新版本，还是会出错。同时我也尝试用老版本DPARSFA2.2来跑，但是也是会出错。不知道如何解决

附系统信息：
Ubuntu 12.04
Matlab R2012a 64bit
SPM8 为最新版本
REST 1.8
DPARSFA 2.3 和2.2

谢谢！