[scilab-Users] Reg :: Crash of Scilab

[Sumit Adhikari]

Run the same code for around 10-15 times in the same xterm. I think you 
will also get crash.

--------------------------------------------
Sumit Adhikari
System Design Engineer
austriamicrosystems AG
Business Unit : Automotive
Mob : 00-91-9885271710/00-91-9000161710



On 9/15/2009 6:03 PM, Yann Collette wrote:
> Bad news: it works fine for me on the scilab-master + scilab-5.1-branch.
> It seems that your code is hanging when plotting the data.
> Have you tried to upgrade your video driver ?
>
> YC
>
> Sumit Adhikari a écrit :
>> My Pleasure. See attachment. I think you need the full datafile as I 
>> have done windowing before saving it.
>> Regards,
>> Sumit
>>
>>
>> On Tue, Sep 15, 2009 at 5:10 PM, Yann Collette 
>> <yann.collette at scilab.org <mailto:yann.collette at scilab.org>> wrote:
>>
>>     Can you send a small data set stored in the data.dat file ?
>>
>>     YC
>>
>>     Sumit Adhikari a écrit :
>>
>>         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
>>
>>
>>
>>
>>     --     -----------------------------
>>     Yann COLLETTE
>>     Software Development Engineer
>>     -----------------------------
>>     The Scilab Consortium
>>     Digiteo Foundation
>>     Domaine de Voluceau
>>     Rocquencourt - B.P. 105
>>     78153 Le Chesnay France
>>     Phone: +33.1.39.63.57.82
>>
>>
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