[Octave-bug-tracker] [bug #38305] file dialog causes crash

[Dan Sebald]

Follow-up Comment #33, bug #38305 (project octave):

"
and:
//octave_initialize_interpreter (octave_cmdline_argc, octave_cmdline_argv,
// octave_embedded);

//octave_execute_interpreter ();
exec();
--> file dialog *did not freeze"
But I guess that was no surprise? 
"

Not a surprise, no.  But confirming is good to prevent going off track.

If you are not seeing SIGHUP or SIGINT in your signals.h file, then I assume
that KUbuntu is not using those signals so I doubt that is where the problem
lies.

I think the thing to do next is just a process of elimination.  Go back to the
unmodified octave-main-thread.cc.

In the file libinterp/octave.cc is a function octave_initialize_interpreter
().  Most of the lines of code look pretty innocuous, but let's confirm it is
the signal handler configuration that is the problem.  Place comments around
this install_signal_handlers:


/*
  if (! embedded)
    install_signal_handlers ();
  else
    quit_allowed = false;
*/


Hopefully there are no real important signals within Octave core for Octave to
run, at least for a little while and not taxing the system too much.

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