bugGNU Octave - Bugs: bug #45199, Segfault in annotation-dialog.cc

 
 

bug #45199: Segfault in annotation-dialog.cc

Submitter:  Andreas Weber <andy1978>
Submitted:  Thu 28 May 2015 06:35:12 AM UTC
 
Category:  Plotting with OpenGL Severity:  4 - Important
Priority:  5 - Normal Item Group:  Segfault, Bus Error, etc.
Status:  Fixed Assigned to:  None
Originator Name:  Open/Closed:  * Closed
Release:  * 4.0.0 Operating System:  * GNU/Linux
* Mandatory Fields

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Tue 02 Jun 2015 07:12:56 PM UTC, comment #5: 

I pushed the patch on the stable branch:
http://hg.savannah.gnu.org/hgweb/octave/rev/6fe746def1aa

Closing report.

Pantxo Diribarne <pantxo>
Project Member
Tue 02 Jun 2015 04:50:55 PM UTC, comment #4: 

Retagging release from 4.0.0-rc4 to 4.0.0.

John W. Eaton <jwe>
Project Administrator
Mon 01 Jun 2015 10:27:19 PM UTC, comment #3: 

The attached patch fixes this bug for me. It also fixes bug #45222 at the same time.

(file #34145)

Pantxo Diribarne <pantxo>
Project Member
Thu 28 May 2015 09:57:08 PM UTC, comment #2: 

Looks like my memory fails me [1], both "--no-gui" and plain GUI modes use a QApplication.

The problem is that the resource_manager hasn't been initialized: just calling resource_manager::reload_settings (); before any use of the resource manager (in annotation-dialog.cc) fixes the issue for me.

This should probably be done in octave-gui.cc

[1] http://hg.savannah.gnu.org/hgweb/octave/rev/1ed269bdea58

Pantxo Diribarne <pantxo>
Project Member
Thu 28 May 2015 08:43:00 AM UTC, comment #1: 

Hi,

I had already reported this on the maintainers ml, but forgot to file the bug report. Thanks.

A major difference between the "--no-gui" and plain gui modes from the Qt point of view is the kind of application that is used: QCoreApplication [1] in "--no-gui", and QApplication in plain GUI.

I'd try to look in that direction, since even in "--no-gui" mode we do need gui (figures and dialogs).

[1] http://doc.qt.io/qt-4.8/qcoreapplication.html#details

Pantxo Diribarne <pantxo>
Project Member
Thu 28 May 2015 06:35:12 AM UTC, original submission:  

8a25649b9c77 (stable)

Start with "--no-gui", run "peaks" (now the Qt plotting window pops up), select "Insert Text", click on the plot:

bt (unfortunately without debugging symbols)

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff2a26900 in QSettings::value(QString const&, QVariant const&) const () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
(gdb) bt
#0  0x00007ffff2a26900 in QSettings::value(QString const&, QVariant const&) const () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#1  0x00007ffff7ac3bed in annotation_dialog::init (this=this@entry=0x7fffffffb8f0) at ../../octave/libgui/graphics/annotation-dialog.cc:56
#2  0x00007ffff7ac41f3 in annotation_dialog::annotation_dialog (this=0x7fffffffb8f0, p=<optimized out>, pr=...) at ../../octave/libgui/graphics/annotation-dialog.cc:45
#3  0x00007ffff7ad5d50 in QtHandles::Canvas::canvasMouseReleaseEvent (this=0x75cd08, event=<optimized out>) at ../../octave/libgui/graphics/Canvas.cc:799
#4  0x00007ffff2feb748 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#5  0x00007ffff3af7511 in QGLWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtOpenGL.so.4
#6  0x00007ffff2f9848c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007ffff2f9f10f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#8  0x00007ffff2a6871d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007ffff2f9e76f in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) ()

I can build Octave with debugging symbols tonight

Andreas Weber <andy1978>
Project Member

 

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Attached Files
file #34145:  fix_fig_locale.patch added by pantxo (4KiB - text/x-diff)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 6 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2015-06-02 pantxo StatusReady For Test Fixed
        Open/ClosedOpen Closed
    2015-06-02 jwe Release4.0.0-rc4 4.0.0
    2015-06-01 pantxo Attached File- Added fix_fig_locale.patch, #34145
        StatusConfirmed Ready For Test
    2015-05-28 pantxo StatusNone Confirmed

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