bugGNU Octave - Bugs: bug #49748, pkg and edit fail with...


bug #49748: pkg and edit fail with "unable to start subprocess"

Submitted by:  Lachlan Andrew <lachlan>
Submitted on:  Fri 02 Dec 2016 04:12:00 AM UTC  
Category:  Interpreter Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  None Assigned to:  None
Originator Name:  Open/Closed:  Open
Release:  dev Operating System:  GNU/Linux

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Fri 02 Dec 2016 10:14:44 AM UTC, comment #2:

@Lachlan: Good to see you back on Octave. It seems like only the last circumstance would be an actual Octave problem to be resolved. If it was something transient with the OS then there isn't much we can do.

The code in question is in toplev.cc:

If you do get it in to an error state it might be useful to see if you can run any sort of shell command.

Rik <rik5>
Project Administrator
Fri 02 Dec 2016 08:55:08 AM UTC, comment #1:

This is odd. Within the same session of Octave, it spontaneously started working. It may be that (a) the OS was actually stopping the subprocess from starting for some reason (b) some initialisation occurred between the first invocation and the second, or (c) Octave had got into a transient bad state (I had just failed to load a Matlab v7.4 file).

Lachlan Andrew <lachlan>
Fri 02 Dec 2016 04:12:00 AM UTC, original submission:

With development version 1d242ae72240, I can't install packages or edit core command scripts. Both complain "unable to start subprocess".

This is on an Ubuntu 16.04 VM on a Windows 10 host. (This is a new install of Octave, and so may by because I don't have some config info.)

Lachlan Andrew <lachlan>


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