nudging elements with connectors causes crash

[Michael Jensen]

After building a simple class diagram (10 classes) and connecting the diagram up with connectors, I attempted to move the whole image with a nudge (alt + arrow key), which caused Inkscape to crash.

I have replicated this reliably with 0.48.1 and 0.48.2 r9819.

I will attempt to attach a backtrace shortly

[Michael Jensen (emjay1988)]

Inkscape appears to catch the crash and I can't get a backtrace with GDB. (Windows)

I will attach the file that is causing the crash.

Instructions to replicate:
Double-click in empty area to move out of the "Message" group (#g3812-0-3-3-7).
Ctrl + A to select all
Alt + left arrow (this nudge works)
Alt + right arrow (causes crash)

Note that the nudge left also causes the connectors to become 3-part connectors, rather than straight lines.

[su_v (suv-lp)]

> Double-click in empty area to move out of the "Message" group (#g3812-0-3-3-7).

1) if current drawing level is 'Layer 1':
Crash not reproduced with Inkscape 0.48.1, 0.48.2 and 0.48+devel r10744
2) if current drawing level is group '#3779':
Crash reproduced with Inkscape 0.48.1, 0.48.2 and 0.48+devel r10744

(tested on on Mac OS X 10.5.8 (i386)).

Console message:
terminate called after throwing an instance of 'Geom::InfiniteSolutions'
  what(): lib2geom exception: There are infinite solutions (2geom/line.cpp:299)

(backtrace from 0.48+devel r10744 debug build attached).

[su_v (suv-lp)]

Backtrace seems the same as the one attached to comment #4 in
 Bug #682585 “Inkscape crashes when moving an object”
 <https://bugs.launchpad.net/inkscape/+bug/682585>

-> probably a duplicate of bug #682585 (or at least sharing the same underlying trigger when rerouting connectors after moving connector-avoided objects, possibly in combination with orthogonal connectors)

[su_v (suv-lp)]

> 2) if current drawing level is group '#3779':
> Crash reproduced with Inkscape 0.48.1, 0.48.2 and 0.48+devel r10744

Crash reproduced with Inkscape 0.48.3.1 and 0.48+devel r11005 on OS X 10.7.2

[jazzynico (jazzynico)]

Reproduced on Windows XP, Inkscape trunk 12228.

[Uwe Jugel (uwe.jugel)]

1) if current drawing level is 'Layer 1':
Crash not reproduced with Inkscape 0.91 r13725, OS X 10.9.5
2) if current drawing level is group '#3779':
Crash not reproduced with Inkscape 0.91 r13725, OS X 10.9.5

In both cases the rects, texts and connectors move along nicely and the connectors stay connected.
However, the connectors still to become 3-part connectors.

[jazzynico (jazzynico)]

Tested again on Windows XP (32bits):
- Reproduced with 0.48.5 and trunk revision 12650.
- Not reproduced with trunk revisions 13031 and 13901.

[jazzynico (jazzynico)]

And tested on Crunchbang Waldorf:
- Reproduced with 0.48.3.1.
- Not reproduced with 0.91 and trunk revision 13904.

[jazzynico (jazzynico)]

Closing "Fix released". Don't hesitate to reopen if you run into the same issue again with a recent Inkscape version.