[Octave-bug-tracker] [bug #51198] Computing the inverse of a pathological matrix crashes Octave

[Johannes Pfeifer]

URL:
  <http://savannah.gnu.org/bugs/?51198>

                 Summary: Computing the inverse of a pathological matrix
crashes Octave
                 Project: GNU Octave
            Submitted by: jpfeifer
            Submitted on: Wed 07 Jun 2017 02:51:00 PM UTC
                Category: Libraries
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Segfault, Bus Error, etc.
                  Status: None
             Assigned to: None
         Originator Name: Johannes Pfeifer
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.2.1
        Operating System: Any

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Details:

Running

load('fs2000_calibrated_covariance_mode.mat')
hsd = sqrt(diag(hh));
invhess = inv(hh./(hsd*hsd'));

crashes Octave on Windows (with Visual studio reporting a problem with
openblas.dll)

On Linux, the crash message is

panic: Segmentation fault -- stopping myself...panic: attempted clean up
failed               -- aborting...
panic: attempted clean up failed -- aborting...

Aborted





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File Attachments:


-------------------------------------------------------
Date: Wed 07 Jun 2017 02:51:00 PM UTC  Name:
fs2000_calibrated_covariance_mode.mat  Size: 696B   By: jpfeifer

<http://savannah.gnu.org/bugs/download.php?file_id=40874>

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