libQtWebKit segfault on some python apps

[Salatiel]

libqtwebkit4:
  Installed: 2.3.2-0ubuntu7
  Candidate: 2.3.2-0ubuntu7

Ubuntu 14.04 LTS

I have a few python apps crashing ( anki for example). I have backtraced using gdb and the developers told me that it is a problem with the ubuntu libraries.

So i am posting the backtrace here, so maybe someone can fix it.

Program received signal SIGSEGV, Segmentation fault.
0x00007fe64415d682 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
(gdb) bt
#0 0x00007fe64415d682 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#1 0x00007fe644163e07 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2 0x00007fe644162934 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3 0x00007fe644162b50 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4 0x00007fe644164a18 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#5 0x00007fe644191ce2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#6 0x00007fe644190129 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#7 0x00007fe64414cca2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#8 0x00007fe6441607a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#9 0x00007fe64416075a in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#10 0x00007fe644166910 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#11 0x00007fe644166a5f in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#12 0x00007fe644187323 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#13 0x00007fe644167ec2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#14 0x00007fe64416a5b0 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#15 0x00007fe64416ad70 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#16 0x00007fe643b96f84 in QWebFrame::setHtml(QString const&, QUrl const&) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#17 0x00007fe645b63edb in meth_QWebView_setHtml (sipSelf=
    <EditorWebView(_canFocus=True, allowDrops=True, linkHandler=<instancemethod at remote 0x7fe5d6e0f1e0>, _keyHandler=None, editor=<Editor(currentField=0, widget=<QWidget at remote 0x7fe63ef6b060>, fcolour='#00f', plastiqueStyle=<QCommonStyle at remote 0x7fe5d6e65c18>, web=<...>, outerLayout=<QVBoxLayout at remote 0x7fe5d6e65ce0>, tags=<TagEdit(completer=<TagCompleter(edit=<...>, cursor=None, tags=[]) at remote 0x7fe5d6e0eb50>, model=<QStringListModel at remote 0x7fe5d6e0ea88>, type=0, col=<_Collection(scm=1457629274889, sched=<Scheduler(queueLimit=50, reps=0, dayCutoff=1459357200, reportLimit=1000, _haveQueues=False, col=<...>, today=168) at remote 0x7fe63f0048b0>, _lastSave=<float at remote 0x29ce350>, crt=1444755600, tags=<TagManager(changed=False, col=<...>, tags={u'JAPANESE': 2127, u'marked': 2127, u'ESTATISTICA': 2127, u'INSS': 2127, u'QUESTION': 2127, u'SUDO': 2127, u'JOBS05': 2127, u'JOBS04': 2127, u'JOBS07': 2127, u'JOBS06': 2127, u'JOBS01': 2127, u'JOBS00': 2127, u'JOBS03': 2127, u'JOBS02': 2127, u'...(truncated), sipArgs=<optimized out>, sipKwds=0x0) at sipQtWebKitpart2.cpp:1489
#18 0x00000000004877c9 in PyCFunction_Call (func=<built-in function setHtml>,
    arg=(<EditorWebView(_canFocus=True, allowDrops=True, linkHandler=<instancemethod at remote 0x7fe5d6e0f1e0>, _keyHandler=None, editor=<Editor(currentField=0, widget=<QWidget at remote 0x7fe63ef6b060>, fcolour='#00f', plastiqueStyle=<QCommonStyle at remote 0x7fe5d6e65c18>, web=<...>, outerLayout=<QVBoxLayout at remote 0x7fe5d6e65ce0>, tags=<TagEdit(completer=<TagCompleter(edit=<...>, cursor=None, tags=[]) at remote 0x7fe5d6e0eb50>, model=<QStringListModel at remote 0x7fe5d6e0ea88>, type=0, col=<_Collection(scm=1457629274889, sched=<Scheduler(queueLimit=50, reps=0, dayCutoff=1459357200, reportLimit=1000, _haveQueues=False, col=<...>, today=168) at remote 0x7fe63f0048b0>, _lastSave=<float at remote 0x29ce350>, crt=1444755600, tags=<TagManager(changed=False, col=<...>, tags={u'JAPANESE': 2127, u'marked': 2127, u'ESTATISTICA': 2127, u'INSS': 2127, u'QUESTION': 2127, u'SUDO': 2127, u'JOBS05': 2127, u'JOBS04': 2127, u'JOBS07': 2127, u'JOBS06': 2127, u'JOBS01': 2127, u'JOBS00': 2127, u'JOBS03': 2127, u'JOBS02': 2127, u...(truncated), kw=0x0) at ../Objects/methodobject.c:85
#19 0x00000000005273b4 in call_function (pp_stack=0x7ffc07796a00, oparg=2) at ../Python/ceval.c:4020
#20 0x00000000005222e1 in PyEval_EvalFrameEx (f=
    Frame 0x7fe64b9c8a60, for file /usr/share/anki/aqt/webview.py, line 108, in setHtml (self=<EditorWebView(_canFocus=True, allowDrops=True, linkHandler=<instancemethod at remote 0x7fe5d6e0f1e0>, _keyHandler=None, editor=<Editor(currentField=0, widget=<QWidget at remote 0x7fe63ef6b060>, fcolour='#00f', plastiqueStyle=<QCommonStyle at---Type <return> to continue, or q <return> to quit---

[Luiz da Silveira Freitas Junior (iilunga)]

I also have the same issue...

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[axel (axel334)]

This might be connected other Anki bug (perhaps it is connected with python-qt4)
also
"Program received signal SIGSEGV, Segmentation fault."
https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/1495274

My crash reports
http://pastebin.com/GG9NY4aK
Discussion
https://anki.tenderapp.com/discussions/ankidesktop/18360-anki-keeps-crashing-on-kubuntu-1604