[Pkg-octave-devel] Bug#695434: octave: Seg fault in __contourc__

[Rafael Laboissiere]

* Pierre.St-Laurent at uqar.ca <Pierre.St-Laurent at uqar.ca> [2012-12-08 14:06]:
>
> Ok, I saved the array in a .mat file and attached it to this email. 
> I can trigger the code every time by starting a fresh octave session and typing:
>
> load array.mat; % Provides array z of size 469x760 
> ii = 1:size (z,2); % From contourc.m 
> jj = 1:size (z,1); % From contourc.m 
> c = __contourc__ (ii, jj, z, [500 500]); % will seg fault 
> %c = __contourc__ (ii, jj, z, [1000 1000]); % will work fine
>
> The last line shows that the behavior depends on the actual contour level requested. 
> 500 cause seg fault, but 1000 is fine. The same instruction works all the time on my other laptop that has squeeze.

Thank you for the data and the code.  I can confirm the bug on amd64, but 
it does not happen on i386.  This is probably an upstream bug, but may 
also be related to something architecture-dependent we do for building 
the package.  @Sébastien: could you take a look at this, please?

Rafael