[Octave-bug-tracker] [bug #53521] GUI freezes and requires SIGKILL upon large pasted input

[Dan Sebald]

Follow-up Comment #1, bug #53521 (project octave):

Confirmed on linux, Mint, Cinnamon.  We are talking pasting into the Command
Window.  Additional information is that if the file name extension is .m
rather than .txt it can be run as a script and there are no problems--runs
fast, N is the final value in the list.  When Octave is run in command-line
mode, cut-and-past of the large text buffer works.  However, there is
something peculiar in the fact "glitches" in the character stream appear.  For
example, every once in a while there is:


octave:547> N=547;
octave:548> N=548;
octave:549> N=549;
1117;
Noctave:550> N=550;
octave:551> N=551;
octave:552> N=552;
octave:553> N=553;


or


octave:768> N=768;
octave:769> N=769;
octave:770> N=770;
octave:771> N=771;
11;
N=1octave:772> N=772;
312;
N=octave:773> N=773;
octave:774> N=774;
octave:775> N=775;
octave:776> N=776;


or


octave:1919> N=1919;
octave:1920> N=1920;
octave:1921> N=1921;
octave:1922> N=1922;

N=2434;octave:1923> N=1923;
octave:1924> N=1924;
octave:1925> N=1925;
octave:1926> N=1926;
octave:1927> N=1927;


and so on.  I don't understand what is happening there, but perhaps that same
kind of thing is happening when pasted to the terminal emulator (Command Line)
in the GUI but such activity in the GUI causes a hang.

The only other small detail I notice is that when running the GUI and pasting,
the climb in CPU usage doesn't appear to happen immediately.  There is a
slight lag of about five to ten seconds (taking into consideration the
filtering operation of my system monitor).

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