Re: 4.2.2 release

[John W. Eaton]

On 11/20/2017 02:41 PM, Daniel J Sebald wrote:
> On 11/08/2017 01:17 PM, John W. Eaton wrote:
> > There have been about 70 changes made that address at least 50 bugs 
> > since 4.2.1, so it's probably time for a new release.
> >
> > Are there any additional *critical* bugs that should be fixed on 
> > stable before releasing 4.2.2?
>
> I think this one is worth incorporating into 4.2.2 given that it seems 
> the solution is fairly straightforward to address a segfault issue on 
> MacOS:
>
> bug #50025: Octave window freezes when I quit Octave GUI
> https://savannah.gnu.org/bugs/?50025
>
> Crashing even when exiting is kind of annoying as history might not be 
> saved and if run via a script octave returning an error code could also 
> cause issues.
>
> The gist of it is that the GUI should wait for the worker process to 
> finish ending before moving on.  I suspect on MacOS there may be a 
> problem of quitting the GUI when a thread is not yet finished or is 
> suspended.  But there may be another means of doing this rather than the 
> technique in the submitted patch (which itself is based on a Qt 
> example).  The signal could be changed to have the blocking property. 
> However, no one has pursued that approach because few of us use MacOS 
> regularly to test.

I remember reworking the way that the interpreter is started from the 
GUI and the way things are cleaned up on exit.  I did the work on the 
default branch.  Is this crash/hanging problem still present on OS X 
with that branch?

jwe