Comment 0 for bug 1665595

Some files which have LPE effect on path crash inkscape while trying to open the file by double clicking on them. I am on the latest inkscape from bzr which is updated this morning (rev # 15524)
Steps to reproduce :

1) Download the attached svg file (owl.svg)(artwork - cc.by.sa 4.0)

2) Double click on the file.

Expected result -

Inkscape should open and the file should be loaded as usual

Actual result -

Inkscape fails to load and segfaults with a dialog box saying - "Inkscape has encountered an internal error and will close now"

su_v from the IRC has helped me get the backtrace. here is the backtrace -

(gdb) r
Starting program: /Users/su_v/TEMP/inkscape-repo/mptrunk-092x-x11/inst/bin/inkscape Downloads/_irc_misc/raghukamath-owl-001.svg
Reading symbols for shared libraries +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++............................................................................................................................................................... done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000058
0x000000010003bb68 in SPDocument::getWidth ()
(gdb) bt
#0 0x000000010003bb68 in SPDocument::getWidth ()
#1 0x000000010039345b in Inkscape::LivePathEffect::LPEMirrorSymmetry::doBeforeEffect ()
#2 0x000000010031371d in Inkscape::LivePathEffect::Effect::doBeforeEffect_impl ()
#3 0x0000000100125976 in SPLPEItem::performPathEffect ()
#4 0x0000000100146f69 in SPPath::update_patheffect ()
#5 0x0000000100142ee1 in sigc::internal::signal_emit2<void, SPObject*, unsigned int, sigc::nil>::emit ()
#6 0x0000000100141ced in SPObject::emitModified ()
#7 0x00000001000eb2a6 in SPDefs::modified ()
#8 0x0000000100141cd5 in SPObject::emitModified ()
#9 0x000000010011416a in SPGroup::modified ()
#10 0x000000010014f102 in SPRoot::modified ()
#11 0x0000000100141cd5 in SPObject::emitModified ()
#12 0x000000010003da13 in SPDocument::_updateDocument ()
#13 0x000000010003da88 in SPDocument::ensureUpToDate ()
#14 0x00000001000218db in SPDesktop::init ()
#15 0x00000001003fcb00 in SPDesktopWidget::createInstance ()
#16 0x00000001003fc99b in sp_desktop_widget_new ()
#17 0x000000010004f6a0 in sp_file_open ()
#18 0x000000010000299f in sp_main_gui ()
#19 0x0000000100001ed4 in start ()
(gdb) q
The program is running. Exit anyway? (y or n) y

(lldb) r
Process 32962 launched: '/Users/su_v/TEMP/inkscape-repo/mptrunk-092x-x11/inst/bin/inkscape' (x86_64)
Process 32962 stopped
* thread #1: tid = 0x4103, 0x000000010003bb68 inkscape`SPDocument::getWidth() const + 8, stop reason = EXC_BAD_ACCESS (code=1, address=0x58)
    frame #0: 0x000000010003bb68 inkscape`SPDocument::getWidth() const + 8
inkscape`SPDocument::getWidth() const + 8:
-> 0x10003bb68: cmpq $0, 88(%rdi)
   0x10003bb6d: je 0x10003bbfa ; SPDocument::getWidth() const + 154
   0x10003bb73: movq 48(%rdi), %rcx
   0x10003bb77: testq %rcx, %rcx
(lldb) bt
* thread #1: tid = 0x4103, 0x000000010003bb68 inkscape`SPDocument::getWidth() const + 8, stop reason = EXC_BAD_ACCESS (code=1, address=0x58)
    frame #0: 0x000000010003bb68 inkscape`SPDocument::getWidth() const + 8
    frame #1: 0x000000010039345b inkscape`Inkscape::LivePathEffect::LPEMirrorSymmetry::doBeforeEffect(SPLPEItem const*) + 1563
    frame #2: 0x000000010031371d inkscape`Inkscape::LivePathEffect::Effect::doBeforeEffect_impl(SPLPEItem const*) + 109
    frame #3: 0x0000000100125976 inkscape`SPLPEItem::performPathEffect(SPCurve*, bool) + 278
    frame #4: 0x0000000100146f69 inkscape`SPPath::update_patheffect(bool) + 105
    frame #5: 0x0000000100142ee1 inkscape`sigc::internal::signal_emit2<void, SPObject*, unsigned int, sigc::nil>::emit(sigc::internal::signal_impl*, SPObject* const&, unsigned int const&) + 129
    frame #6: 0x0000000100141ced inkscape`SPObject::emitModified(unsigned int) + 93
    frame #7: 0x00000001000eb2a6 inkscape`SPDefs::modified(unsigned int) + 134
    frame #8: 0x0000000100141cd5 inkscape`SPObject::emitModified(unsigned int) + 69
    frame #9: 0x000000010011416a inkscape`SPGroup::modified(unsigned int) + 202
    frame #10: 0x000000010014f102 inkscape`SPRoot::modified(unsigned int) + 18
    frame #11: 0x0000000100141cd5 inkscape`SPObject::emitModified(unsigned int) + 69
    frame #12: 0x000000010003da13 inkscape`SPDocument::_updateDocument() + 531
    frame #13: 0x000000010003da88 inkscape`SPDocument::ensureUpToDate() + 40
    frame #14: 0x00000001000218db inkscape`SPDesktop::init(SPNamedView*, SPCanvas*, Inkscape::UI::View::EditWidgetInterface*) + 395
    frame #15: 0x00000001003fcb00 inkscape`SPDesktopWidget::createInstance(SPNamedView*) + 320
    frame #16: 0x00000001003fc99b inkscape`sp_desktop_widget_new(SPNamedView*) + 11
    frame #17: 0x000000010004f6a0 inkscape`sp_file_open(Glib::ustring const&, Inkscape::Extension::Extension*, bool, bool) + 176
    frame #18: 0x000000010000299f inkscape`sp_main_gui(int, char const**) + 1359
    frame #19: 0x0000000100001ed4 inkscape`start + 52
(lldb) q

I am running inkscape on arch linux with a updated system

Let me know if you want any more information.

thank you