Re: Plot command crashes Octave

[Mike Miller]

On Sun, Jul 03, 2016 at 23:40:49 -0700, Sebastian Schöps wrote:
> Christopher Smith wrote
> > Hello,
> > I am running Octave on El Captain for the first time.  I use Matlab
> > extensively, and was excited to find a GNU platform!  I created two
> > vectors and tried to plot them using the plot command.  This crashed
> > Octave.  Is this a common bug?  Is there a simple way to fix it?  I
> > clicked on the details button and have included the contents below (in
> > case that would be helpful).  Thanks and have a great day!
> > -Chris Smith
> 
> It is a known bug but "sadly" it does not occur on our development machines. 
> However, if you do not care which plot backend is used, then this should fix
> the problem:
> 
> graphics_toolkit('gnuplot')
> figure;
> x=1:10;
> plot(x,sin(x));
> 
> Please let us know if this works.

Sebastian,

We've had a few bug reports in the past week or so about crashes on
macOS. I handle these as best as I can, but would certainly appreciate
any help I can get in identifying some of the known issues or common
problems to make triage easier.

I see there is a short "known issues" section on
http://wiki.octave.org/Create_a_MacOS_X_App_Bundle_Using_Homebrew. Are
there any other lists of known issues?

A couple of the bug reports hint at a possible problem with OpenBLAS.
The following reports had stack traces indicating a crash in the dgemm
function in OpenBLAS:

https://savannah.gnu.org/bugs/?48258
https://savannah.gnu.org/bugs/?48400

This one was resolved by the reporter with some additional installs and
configuration relating to fontconfig:

https://savannah.gnu.org/bugs/?48197

This one was resolved with no explanation by the reporter:

https://savannah.gnu.org/bugs/?48284

Hope this is useful,

-- 
mike

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