bugGNU Octave - Bugs: bug #44679, Segmentation fault when loading a...


bug #44679: Segmentation fault when loading a MAT-file containing a function_handle to a subfunction

Submitted by:  Guillaume <gyom>
Submitted on:  Tue 31 Mar 2015 02:45:35 PM UTC  
Category:  Libraries Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Confirmed Assigned to:  None
Originator Name:  Guillaume Open/Closed:  Open
Release:  dev Operating System:  GNU/Linux

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Thu 03 Dec 2015 05:46:58 PM UTC, comment #1: 

Using a recent development tip the test file no longer produces a segmentation fault.  Octave can't read the MAT-file with an embedded handle to a subfunction, but just issues an error message about that.  I am changing the Item Group to Matlab Compatibility and marking this as confirmed.

Rik <rik5>
Project Administrator
Tue 31 Mar 2015 02:45:35 PM UTC, original submission:  

Create file myfcn.m as follow:

%%%%%%%% file myfcn.m%%%%%%%%%
function out = myfcn(varargin)

A = @(x) mysubfcn(x);

save testmat.mat A -v6

function mysubfcn(varargin)

and call it from MATLAB to create MAT-file testmat.mat (attached as well). Then load it in Octave:

octave> load testmat.mat
error: octave_base_value::cell_value(): wrong type argument 'scalar struct'
panic: Segmentation fault -- stopping myself...
attempting to save variables to 'octave-workspace'...
Segmentation fault

It does not seem to depend on the MATLAB version used nor whether the -v6 flag was used or not.

Guillaume <gyom>


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Attach Files:

Attached Files
file #33498:  testmat.mat added by gyom (3KiB - application/octet-stream)


Depends on the following items: None found

Items that depend on this one: None found


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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2015-12-03 rik5 Item GroupSegfault, Bus Error, etc. => Matlab Compatibility
        StatusNone => Confirmed
    2015-03-31 gyom Attached File- => Added testmat.mat, #33498

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