Package: octave3.0 Version: 1:3.0.1-6lenny3 Severity: important
Ok, I'm trying to do a big computation with a exponential time differencing method, using lot of fft, ifft and vector element-by-element multiplication. The matter is that , when I'm trying to run my script, octave3.0 crash with a segfault. I have run it in gdb : # START OF BACKTRACE (gdb) run equa_diff_SSM_ETD1.m Starting program: /usr/bin/octave equa_diff_SSM_ETD1.m (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread 0xb5b4cab0 (LWP 19081)] GNU Octave, version 3.0.1 Copyright (C) 2008 John W. Eaton and others. This is free software; see the source code for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTIBILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, type `warranty'. Octave was configured for "i486-pc-linux-gnu". Additional information about Octave is available at http://www.octave.org. Please contribute if you find this software useful. For more information, visit http://www.octave.org/help-wanted.html Report bugs to <[email protected]> (but first, please read http://www.octave.org/bugs.html to learn how to write a helpful report). For information about changes from previous versions, type `news'. Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb5b4cab0 (LWP 19081)] 0xb794fc42 in symbol_record::clear (this=0xaad5fd8) at ov.h:392 392 ov.h: No such file or directory. in ov.h (gdb) # END OF BACKTRACE Step to reproduce : run this script with octave interpreter. %%%%%%%%%%%%%%%%%%%%%START OF SCRIPT%%%%%%%%%%%%%%%%%%%%%%%%%% clear all ; delta_z = 1e-7 ; % fenetre_t = 7 ; N_z = 1000 ; N_t = 1024 ;%256 ; N_nu = N_t ; delta_t = fenetre_t ./ ( N_t - 1) ; delta_nu = 1 ./ ( ( N_nu - 1 ) .* delta_t ) ; vecteur_t = [ -fenetre_t/2: delta_t : fenetre_t/2 ] ; vecteur_z = [ 0 : delta_z : ( N_z - 1 ) * delta_z ] ; vecteur_nu = [ 0 :delta_nu : (N_nu/2)*delta_nu , -(N_nu/2-1)*delta_nu : delta_nu : -delta_nu ] ; p = 5 ; gamma = 0 ; eta = vecteur_t * p + (p.^3) * vecteur_z(1) - gamma ; u = zeros ( N_z , N_t ) ; u(1,:) = ( sqrt(6)*p ) ./ cosh(eta) ; c = ( 2 .* pi .* i .* vecteur_nu ).^3 ; g1=exp( c .* delta_z ) ; g2=zeros(1,N_t); g2(2:N_t)=(g1(2:N_t)-1)./c(2:N_t); g2(1) = delta_z ; for k = [ 1:N_z-1 ] u_chapeau_0 = fft( u( k , : ) ) ; % vecteur_derive = real(ifft( i .* 2 .* pi .* vecteur_nu .* u_chapeau_0 )); terme_non_lineaire = fft( ( u( k , : ).^2 ) .* vecteur_derive ) ; u_chapeau_1 = g1 .* u_chapeau_0 + terme_non_lineaire .*g2 ; u(k+1,:) = real(ifft(u_chapeau_1)) ; end ; imagesc(vecteur_t,vecteur_z,real(u)) ; %%%%%%%%%%%%%%END OF SCRIPT%%%%%%%%%%%%%%%%%%%%% -- System Information: Debian Release: 5.0.1 APT prefers stable APT policy: (500, 'stable') Architecture: i386 (i686) Kernel: Linux 2.6.26-2-686 (SMP w/2 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages octave3.0 depends on: ii libatlas3gf-base [libl 3.6.0-22 Automatically Tuned Linear Algebra ii libblas3gf [libblas.so 1.2-2 Basic Linear Algebra Subroutines 3 ii libc6 2.7-18 GNU C Library: Shared libraries ii libcurl3-gnutls 7.18.2-8lenny2 Multi-protocol file transfer libra ii libfftw3-3 3.1.2-3.1 library for computing Fast Fourier ii libgcc1 1:4.3.2-1.1 GCC support library ii libgfortran3 4.3.2-1.1 Runtime library for GNU Fortran ap ii libglpk0 4.29-2 linear programming kit with intege ii libhdf5-serial-1.6.6-0 1.6.6-4 Hierarchical Data Format 5 (HDF5) ii liblapack3gf [liblapac 3.1.1-1 library of linear algebra routines ii libncurses5 5.7+20081213-1 shared libraries for terminal hand ii libpcre3 7.6-2.1 Perl 5 Compatible Regular Expressi ii libqhull5 2003.1-9lenny1 calculate convex hulls and related ii libreadline5 5.2-3.1 GNU readline and history libraries ii libstdc++6 4.3.2-1.1 The GNU Standard C++ Library v3 ii libsuitesparse-3.1.0 3.1.0-3 collection of libraries for comput ii texinfo 4.11.dfsg.1-4 Documentation system for on-line i ii zlib1g 1:1.2.3.3.dfsg-12 compression library - runtime Versions of packages octave3.0 recommends: ii gnuplot 4.2.2-1.2 A command-line driven interactive ii libatlas3gf-base 3.6.0-22 Automatically Tuned Linear Algebra Versions of packages octave3.0 suggests: ii octave3.0-doc 1:3.0.1-6lenny3 PDF documentation on the GNU Octav ii octave3.0-emacsen 1:3.0.1-6lenny3 Emacs support for the GNU Octave l ii octave3.0-headers 1:3.0.1-6lenny3 header files for the GNU Octave la ii octave3.0-htmldoc 1:3.0.1-6lenny3 HTML documentation on the GNU Octa ii octave3.0-info 1:3.0.1-6lenny3 GNU Info documentation on the GNU -- no debconf information -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
