crash when toggling "Live preview" in the extension dialog

[Diane Lingrand]

With the attached document opened. Effects/Render/LateX formula with any entry (eg $\pi$) opens a dialog. If option
"Live Preview" is selected, then deselected, the application crashes with, in the terminal:
** ERROR:(xml/simple-document.cpp:51):virtual Inkscape::XML::Event* Inkscape::XML::SimpleDocument::commitUndoable(): assertion failed: (_in_transaction)
Aborted

This error is reproductible.
However, the same manipulation with a new empty document
does not crash, even if the latex formula is not displayed.

Inkscape 0.46, ubuntu package.

[nightrow (jb-benoit)]

Using ubuntu package, i couldn't find the mentionned menu : Effects/Render/LateX formula
Could you please check ?

[Petteri Aimonen (jpa-lp)]

I got the same crash with inkscape svn r22440 using "Live preview" in "Create from path -> Extrude".

Attached is the backtrace, though I guess all relevant information is visible from the assertion message also.

[su_v (suv-lp)]

crash not reproduced with Inkscape 0.46+r22476 on OS X 10.5.8

can you add a list of steps how to reproduce? (what objects, sequence of comands beginning from new document…)

[su_v (suv-lp)]

confirmed with Inkscape 0.47pre4 and 0.46+devel r22547 on OS X 10.5.8, new default preferences file

steps to reproduce:

1) open new document
2) toggle grid on ('View > Grid')
3) open Document Properties and select 'Grids' tab
4) close Document Properties dialog without any changes
5) open an extension with 'Live Preview' enabled
   (e.g. 'Render > Cartesian Grid')
6) toggle 'Live Preview' on and off
7) crash

console messages:
**
ERROR:xml/simple-document.cpp:48:virtual Inkscape::XML::Event* Inkscape::XML::SimpleDocument::commitUndoable(): assertion failed: (_in_transaction)
Emergency save activated!

This crash could be related to bug #186293 “Grid details in Document Properties don't show up after 'redo'”:
<https://bugs.launchpad.net/inkscape/+bug/186293>

[su_v (suv-lp)]

backtrace from crash report with Inkscape 0.46+devel r22547 on OS X 10.5.8

slightly different then the previous one - this has 'Inkscape::XML::SimpleDocument::commitUndoable()' in the bt.

[jazzynico (jazzynico)]

Also reproduced on Vista, Inkscape rev. 22568.
Same console message as in comment #5.

[Alex Valavanis (valavanisalex)]

Also affects Ubuntu. Confirming and marking bug #468196 as a duplicate

[rightstyle (alex877007)]

Same crash as #5 in inkscape rev 22598.

The crash can be avoided by commenting out
     sp_document_set_undo_sensitive (local_doc, false);
and
      sp_document_set_undo_sensitive (local_doc, saved);

in write_to_xml in the file src/ui/widget/registered-widget.h

This is probally not a good fix. I dont know what other things that are affected and those lines of codes are probably there for a reason.

[Alex Valavanis (valavanisalex)]

Bug still present in inkscape_0.48.0-1ubuntu1

[jazzynico (jazzynico)]

Trunk code changed a bit recently. Attached is a backtrace generated with r10760.

[Martin Owens (doctormo)]

Using trunk rev 12372. I've tested both the original svg file with live preview toggling and the documented steps to reproduce in comment #5. There is no crash in this version and it may be fixed. Please test with windows version to make sure and set back to Confirmed if bug reappears.