Undo Bezier path edit crashes Inksacpe

Could you provide a backtrace from the crash [1], and any console messages Inkscape puts out when the crash occurs?

Possibly the same as
Bug #664831 “Undo after drag path causes inkscape to crash”
which is a duplicate of
Bug #544599 “Node editing causes segmentation fault”
and fixed in current trunk (and upcoming 0.48.1).

[1] <https://wiki.ubuntu.com/Backtrace>

The error message is:
Inkscape encountered an internal error and will close now.
Automatic backups of unsaved documents were done to the following locations:

 /home/gregor/Desktop/2SVG4WikiCommons/HowToHelp-El_3_CPR.svg.2011_01_28_13_33_06.0.svg
How do I do a "backtrace"?

On Fri, Jan 28, 2011 at 12:29, ~suv <email address hidden> wrote:

> Could you provide a backtrace from the crash [1], and any console
> messages Inkscape puts out when the crash occurs?
>
> Possibly the same as
> Bug #664831 “Undo after drag path causes inkscape to crash”
> which is a duplicate of
> Bug #544599 “Node editing causes segmentation fault”
> and fixed in current trunk (and upcoming 0.48.1).
>
>
> [1] <https://wiki.ubuntu.com/Backtrace>
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/709113
>
> Title:
> Undo Bezier path edit crashes Inksacpe
>
> Status in Inkscape: A Vector Drawing Tool:
> New
>
> Bug description:
> I have a jpg embedded that I am redrawing manually with Bezier paths on
> top of the pixel image.
> I am zoomed in tightly to a Bezier path (my one pixel wide line might be
> 20 or 50 pixels on screen) and use the "Edit path by nodes" tool to drag the
> path into another shape (actually it usually occurs when I miss the node I
> want to move and I grab the path very close to the node and pull it into a
> wide loop [much bigger than the screen area]).
> I immediately realize my mistake and hit Ctrl + z to undo.
> Inkscape crashes.
> This usually occurs a long time after i have made my last save so I am
> glad that the program saves a backup so I do not loose (much) work.
>
> Inkscape 0.48 r9654
> Ubuntu 10.04 LTS
> Kernel 2.6.32-28-generic-pae
> Gnome 2.30.2
> on a Intel Core 2 Quad Q6600 2.40 GHz
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/inkscape/+bug/709113/+subscribe
>

--
Gregor Shapiro
Lasarettsvägen 11
SE 302 33 Halmstad Sweden
0046 (0)73 976 2989

Yes it does seem to be similar but in contrast to 664831:
"It only sees to happen when there is a path with a sufficiently large number of nodes."
I got the crash when my path had but 3 of originally 4 nodes on a closed path (maybe the removal of a node sends the path into the twilight zone; 544599 created new nodes to get his crash!)

> How do I do a "backtrace"?

I'm not using linux myself, but I gave you a link to the ubuntu wiki in my previous comment:
>> [1] <https://wiki.ubuntu.com/Backtrace>

But since your description matches those in the other mentioned reports, it's most likely a duplicate of bug #544599 - fixed in trunk and for the upcoming bug-fix release 0.48.1.

AFAICT the number of nodes was not the relevant trigger for the crash, but the Undo command:

Comment from the developer fixing bug #544599:
> Looks like the crash actually occurs when you try
> to drag an orphaned curve dragpoint that is created
> when you undo the creation of certain nodes. I added
> a call to hide the dragpoint before processing an
> undo operation, which should fix it.

But without backtrace or testing a more recent build it's difficult to determine (the console message doesn't give any hints).

Or - since you zoom in so closely, it could be similar to
Bug #591986 “[Node tool] Dragging cap at end of path causes crash”
though the fix for that bug was already included in 0.48.0-1ubuntu1.

Needs a backtrace, with debugging symbols installed (most likely a duplicate of bug #544599, fixed in 0.48.1).
Or do you have the possibility to test with the current stable release (0.48.1) if this type of crash still occurs?

In all the editing of bezier paths I have done since I installed 0.48.1 I
have not crashed Inkscape (but I also have been a little more careful too!)

On Apr 5, 2011 1:06 PM, "~suv" <email address hidden> wrote:

Needs a backtrace, with debugging symbols installed (most likely a duplicate
of bug #544599, fixed in 0.48.1).
Or do you have the possibility to test with the current stable release
(0.48.1) if this type of crash still occurs?

** Changed in: inkscape
      Status: New => Incomplete

-- You received this bug notification because you are a direct subscriber of
the bug. https://bugs...
 Incomplete

Bug description: I have a jpg embedded that I am redrawing manually with
Bezier paths on top of t...

I am zoomed in tightly to a Bezier path (my one pixel wide line might be 20
or 50 pixels on scree...

> since I installed 0.48.1 I have not crashed Inkscape
> (but I also have been a little more careful too!)

Would you agree to "close" this report as duplicate of bug #544599 (fixed in 0.48.1)? You can revert the duplicate status any time if the same crashes reoccur with the current stable release 0.48.1, and we could then try to further investigate and possibly get a full backtrace for the crash.

I have just done that. I thought i should change the "Status" but there was
nothing that fit the bill so I left "Status" as New.
/Gregor

On Tue, Apr 5, 2011 at 18:08, ~suv <email address hidden> wrote:

> > since I installed 0.48.1 I have not crashed Inkscape
> > (but I also have been a little more careful too!)
>
> Would you agree to "close" this report as duplicate of bug #544599
> (fixed in 0.48.1)? You can revert the duplicate status any time if the
> same crashes reoccur with the current stable release 0.48.1, and we
> could then try to further investigate and possibly get a full backtrace
> for the crash.
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/709113
>
> Title:
> Undo Bezier path edit crashes Inksacpe
>
> Status in Inkscape: A Vector Drawing Tool:
> Incomplete
>
> Bug description:
> I have a jpg embedded that I am redrawing manually with Bezier paths on
> top of the pixel image.
> I am zoomed in tightly to a Bezier path (my one pixel wide line might be
> 20 or 50 pixels on screen) and use the "Edit path by nodes" tool to drag the
> path into another shape (actually it usually occurs when I miss the node I
> want to move and I grab the path very close to the node and pull it into a
> wide loop [much bigger than the screen area]).
> I immediately realize my mistake and hit Ctrl + z to undo.
> Inkscape crashes.
> This usually occurs a long time after i have made my last save so I am
> glad that the program saves a backup so I do not loose (much) work.
>
> Inkscape 0.48 r9654
> Ubuntu 10.04 LTS
> Kernel 2.6.32-28-generic-pae
> Gnome 2.30.2
> on a Intel Core 2 Quad Q6600 2.40 GHz
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/inkscape/+bug/709113/+subscribe
>

--
Gregor Shapiro
Lasarettsvägen 11
SE 302 33 Halmstad Sweden
0046 (0)73 976 2989