Reg :: Crash of Scilab

[Sumit Adhikari]

Hello,
  This is a crash with following message :

        ___________________________________________
              scilab-branches-5.1-1252497453

                 Consortium Scilab (DIGITEO)
               Copyright (c) 1989-2009 (INRIA)
               Copyright (c) 1989-2007 (ENPC)
        ___________________________________________


Startup execution:
  loading initial environment
 MESG :: Reading Data File ......
 MESG :: Computing FFT ......
 MESG :: Plotting FFT ....
#
# An unexpected error has been detected by Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0xdb5d6acc, pid=23315, tid=16384
#
# Java VM: Java HotSpot(TM) Server VM (11.0-b16 mixed mode linux-x86)
# Problematic frame:
# C  [libGL.so.1+0x43acc]
#
# An error report file with more information is saved as:
# /fshy01/uxhyu/sa1/work/sdm/sim/hs_err_pid23315.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
/fshy01/uxhyu/sa1/tools/scilab-branches-5.1-1252497453/bin/scilab: line 132:
23315 Aborted                 (core dumped) "$SCILABBIN" $*

This is happening for only one data file!!!. Other dumps of the same
tracepoints are working. I cant attach the core. It is 1.8 GB!
Same file with 4.2.1 working fine.

Following is the script :


// Clearing the previous data (if any)
   clear all ;

// Handling stacksize
   stacksize('max');


function fft_plot()

// Sampling Frequency Specification :
   Fs = 1024.0*1024.0;

// Sampling Time Period Specification
   delt = 1.0/Fs;

// Data File Read Up :
   printf(" MESG :: Reading Data File ...... \n");
   file_read_out = fscanfMat("./data.dat");


// Expansion of Time :
   t = 0.0:1.0/Fs:(size(file_read_out,"*")*delt);

// Finding Out Number of Samples :
   N = size(t,'*');

// Clearing the array t
   clear t ;

// Computing FFT :
   printf(" MESG :: Computing FFT ...... \n");
   fft_out=fft(file_read_out);

// Clearing the array file_read_out
   clear file_read_out ;

// Expanding Frequency :
   f = Fs*(0:(N/2))/N;
   n = size(f,'*');

// Setting Plot Down Sampler :
   RDOWN = 1 ;

// FFT Graphical Plot :
   printf(" MESG :: Plotting FFT .... \n");
   plot(f(1:n/RDOWN),20*log10(abs(fft_out(1:n/RDOWN))),"red");
mtlb_grid("on");
   //plot(log10(f(2:n/RDOWN)),20*log10(abs(fft_out(2:n/RDOWN))),"red");
mtlb_grid("on");
   //plot(f(1:n/RDOWN),abs(fft_out(1:n/RDOWN)),"red"); mtlb_grid("on");
   xtitle( 'FFT Plot of Output Signal', ' Frequency (Hz) ', 'Gain (dB)') ;

endfunction

  fft_plot();



Regards,
Sumit

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