[Octave-bug-tracker] [bug #54173] Intermittent hang in test suite when run from Qt GUI on macOS

[Andrew Janke]

Follow-up Comment #3, bug #54173 (project octave):

I have an okay workaround for this now: if I undock the Editor window and
leave it undocked, then only the Editor window will hang, and the main Command
Window will keep running and stay responsive, so I can still run the whole
test suite and see the results.

Digging deeper: I wonder why Octave thinks the `ftp/dir.m` file has been
modified by an external program? The test suite doesn't modify any Octave
source files, does it?

The date stamps on these files are well in the past:


[/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave-octave-app_4.4.0/4.4.0/share/octave/4.4.0/m/@ftp]
$ ls -l
total 120
-rw-r--r--  1 janke  admin  1229 Jun 24 20:20 ascii.m
-rw-r--r--  1 janke  admin  1190 Jun 24 20:20 binary.m
-rw-r--r--  1 janke  admin  1553 Jun 24 20:20 cd.m
-rw-r--r--  1 janke  admin  1067 Jun 24 20:20 close.m
-rw-r--r--  1 janke  admin  1097 Jun 24 20:20 delete.m
-rw-r--r--  1 janke  admin  1164 Jun 24 20:20 dir.m
-rw-r--r--  1 janke  admin  1046 Jun 24 20:20 disp.m
-rw-r--r--  1 janke  admin  2358 Jun 24 20:20 ftp.m
-rw-r--r--  1 janke  admin  1326 Jun 24 20:20 loadobj.m
-rw-r--r--  1 janke  admin  1606 Jun 24 20:20 mget.m
-rw-r--r--  1 janke  admin  1100 Jun 24 20:20 mkdir.m
-rw-r--r--  1 janke  admin  1359 Jun 24 20:20 mput.m
-rw-r--r--  1 janke  admin  1177 Jun 24 20:20 rename.m
-rw-r--r--  1 janke  admin  1100 Jun 24 20:20 rmdir.m
-rw-r--r--  1 janke  admin   912 Jun 24 20:20 saveobj.m
[/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave-octave-app_4.4.0/4.4.0/share/octave/4.4.0/m/@ftp]
$ date
Sun Jun 24 20:57:19 EDT 2018



[/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave-octave-app_4.4.0/4.4.0/share/octave/4.4.0/m/miscellaneous]
$ ls -l ls.m
-rw-r--r--  1 janke  admin  4245 Jun 24 20:20 ls.m
[/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave-octave-app_4.4.0/4.4.0/share/octave/4.4.0/m/miscellaneous]
$ date
Sun Jun 24 20:58:56 EDT 2018


I was just running the test suite again now, and I got the hang again, but
this time it was on `m/miscellaneous/ls.m` instead of `m/@ftp/dir.m`.

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