[Octave-bug-tracker] [bug #37095] Segfault with CHOL and a second output argument

[Guillaume]

URL:
  <http://savannah.gnu.org/bugs/?37095>

                 Summary: Segfault with CHOL and a second output argument
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Tue 14 Aug 2012 03:44:54 PM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Calling CHOL on a non positive definite sparse matrix and two output arguments
generates a segmentation fault:

octave:1> A=-speye(3);
octave:2> B=chol(A);
warning: warning 1, at line 432 in file ../Cholesky/t_cholmod_rowfac.c
warning: not positive definite
error: chol: input matrix must be positive definite
octave:2> [B,C]=chol(A);
warning: warning 1, at line 432 in file ../Cholesky/t_cholmod_rowfac.c
warning: not positive definite
panic: Segmentation fault -- stopping myself...
attempting to save variables to `octave-workspace'...
save to `octave-workspace' complete
Segmentation fault





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