bugGNU Octave - Bugs: bug #48081, qt graphics toolkit plotting...

 
 

bug #48081: qt graphics toolkit plotting error: octave_base_value::convert_to_str_internal (): wrong type argument '<unknown type>'

Submitted by:  None
Submitted on:  Wed 01 Jun 2016 06:42:15 PM UTC  
 
Category: Plotting with OpenGLSeverity: 3 - Normal
Priority: 3 - LowItem Group: None
Status: DuplicateAssigned to: None
Originator Name: LemmataOriginator Email: -unavailable-
Open/Closed: ClosedRelease: 4.0.2
Operating System: GNU/Linux

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Mon 06 Jun 2016 05:00:19 PM UTC, comment #5:

Closing this report as a duplicate and keeping the original open.

Rik <rik5>
Project Administrator
Thu 02 Jun 2016 04:10:56 PM UTC, comment #4:

I pushed a small patch to stable that seems to work for me (http://hg.savannah.gnu.org/hgweb/octave/rev/4950810ce605). I'm marking this bug as Ready for Test.

Rik <rik5>
Project Administrator
Thu 02 Jun 2016 03:40:09 PM UTC, comment #3:

Definitely related to bug #46466. I'm marking this as a duplicate. I think I have a fix for this which I will post on the other report.

Rik <rik5>
Project Administrator
Thu 02 Jun 2016 04:54:44 AM UTC, comment #2:

Is it related to bug #46466?

Avinoam Kalma <avinoam>
Project Member
Wed 01 Jun 2016 08:31:45 PM UTC, comment #1:

Confirmed. I'm attaching a slightly modified version of the script (plot_string_error2.m) which runs the whole thing 10 times. I rarely get above 4 loop iterations before the error surfaces. The error occurs only with the qt toolkit--the others are tested and run fine.

This appears to have been fixed on the development branch. I can't reproduce it after running the test script multiple times. I'm lowering the priority because, absent an idea of where the problem is, it will be easier to just move to the 4.2 release of Octave rather than discover exactly why this is failing. Also, there are workarounds just by switching to a different toolkit.

(file #37345)

Rik <rik5>
Project Administrator
Wed 01 Jun 2016 06:42:15 PM UTC, original submission:

When plotting using the qt graphics toolkit I occasionally get the following error:

The error is hit or miss, and so I've just been re-running my scripts to get around it. Of course this is untenable for larger programs generating many plots. My guess is that this is some threading error due to generating multiple plots.

I've attached a script which frequently reproduces the error.

Anonymous

 

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Attached Files
file #37345:  plot_string_error2.m added by rik5 (1KiB - d2l/unknowntype)
file #37339:  plot_string_error.m added by None (1KiB - text/x-objcsrc - script for reproducing error)

 

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   bug dependencies.

Items that depend on this one: None found

 

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  • -unavailable- added by avinoam (Posted a comment)
  • -unavailable- added by rik5 (Updated the item)
  • -unavailable- added by None (Submitted the item)
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    Follow 9 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Mon 06 Jun 2016 05:00:19 PM UTCrik5StatusReady For Test=>Duplicate
      Open/ClosedOpen=>Closed
    Thu 02 Jun 2016 04:10:56 PM UTCrik5StatusConfirmed=>Ready For Test
    Thu 02 Jun 2016 03:40:09 PM UTCrik5Dependencies-=>Depends on bugs #46466
    Wed 01 Jun 2016 08:31:45 PM UTCrik5Attached File-=>Added plot_string_error2.m, #37345
      CategoryPlotting=>Plotting with OpenGL
      Priority5 - Normal=>3 - Low
      StatusNone=>Confirmed
    Wed 01 Jun 2016 06:42:15 PM UTCNoneAttached File-=>Added plot_string_error.m, #37339

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