backtrace file qgis with plugins enabled

$ gdb /usr/bin/qgis.bin core
GNU gdb (Ubuntu 7.7-0ubuntu3.1) 7.7
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
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Reading symbols from /usr/bin/qgis.bin...(no debugging symbols found)...done.
[New LWP 15167]
[New LWP 15168]
[New LWP 15170]
[New LWP 15169]
[New LWP 15171]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/qgis.bin'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007f593dfb4bb9 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007f593dfb4bb9 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f593dfb7fc8 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x000000000050128c in qgisCrash(int) ()
#3  <signal handler called>
#4  0x00007f5940a5e916 in QSortFilterProxyModel::parent(QModelIndex const&) const () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#5  0x00007f5940a1c861 in QTreeView::indexRowSizeHint(QModelIndex const&) const
    () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#6  0x00007f5940a1fe09 in QTreeViewPrivate::itemHeight(int) const ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007f5940a2115e in QTreeViewPrivate::updateScrollBars() ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#8  0x00007f5940a2a377 in QTreeView::updateGeometries() ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#9  0x00007f59405392be in QWidget::event(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#10 0x00007f59408dafce in QFrame::event(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#11 0x00007f59409ea5b3 in QAbstractItemView::viewportEvent(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#12 0x00007f5940a29190 in QTreeView::viewportEvent(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#13 0x00007f5941150646 in QCoreApplicationPrivate::sendThroughObjectEventFilters---Type <return> to continue, or q <return> to quit---
(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#14 0x00007f59404e9e0c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#15 0x00007f59404f04a0 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#16 0x00007f59422c876b in QgsApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libqgis_core.so.2.6.0
#17 0x00007f59411504dd in QCoreApplication::notifyInternal(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f59405821fe in QWidgetPrivate::setGeometry_sys(int, int, int, int, bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x00007f5940531a65 in QWidget::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#20 0x00007f5940956001 in QAbstractScrollAreaPrivate::layoutChildren() ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#21 0x00007f594095747d in QAbstractScrollArea::event(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007f59409ea27b in QAbstractItemView::event(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#23 0x00007f59404e9e2c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007f59404f04a0 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
---Type <return> to continue, or q <return> to quit---
#25 0x00007f59422c876b in QgsApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libqgis_core.so.2.6.0
#26 0x00007f59411504dd in QCoreApplication::notifyInternal(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#27 0x00007f59405821fe in QWidgetPrivate::setGeometry_sys(int, int, int, int, bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#28 0x00007f5940531a65 in QWidget::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#29 0x00007f59405151d5 in QWidgetItem::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#30 0x00007f59404f8635 in QBoxLayout::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#31 0x00007f59404f8701 in QBoxLayout::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#32 0x00007f594051199e in QLayoutPrivate::doResize(QSize const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#33 0x00007f59404e9dfe in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#34 0x00007f59404f04a0 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#35 0x00007f59422c876b in QgsApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libqgis_core.so.2.6.0
#36 0x00007f59411504dd in QCoreApplication::notifyInternal(QObject*, QEvent*)
---Type <return> to continue, or q <return> to quit---
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#37 0x00007f59405821fe in QWidgetPrivate::setGeometry_sys(int, int, int, int, bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#38 0x00007f5940531a65 in QWidget::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#39 0x00007f59405151d5 in QWidgetItem::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#40 0x00007f59408c9731 in QDockWidgetLayout::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#41 0x00007f594051199e in QLayoutPrivate::doResize(QSize const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#42 0x00007f59404e9dfe in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#43 0x00007f59404f04a0 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#44 0x00007f59422c876b in QgsApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libqgis_core.so.2.6.0
#45 0x00007f59411504dd in QCoreApplication::notifyInternal(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#46 0x00007f59405821fe in QWidgetPrivate::setGeometry_sys(int, int, int, int, bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#47 0x00007f5940531a65 in QWidget::setGeometry(QRect const&) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
---Type <return> to continue, or q <return> to quit---
#48 0x00007f594053b06d in QWidget::qt_metacall(QMetaObject::Call, int, void**)
    () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#49 0x00007f59408ca0a7 in QDockWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#50 0x0000000000835695 in QgsBrowserDockWidget::qt_metacall(QMetaObject::Call, int, void**) ()
#51 0x00007f5941036a82 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#52 0x00007f594103423a in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#53 0x00007f5941034534 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#54 0x00007f5941037135 in QPropertyAnimation::updateState(QAbstractAnimation::State, QAbstractAnimation::State) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#55 0x00007f5941031c52 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#56 0x00007f5940968774 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#57 0x00007f59408cf3fe in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#58 0x00007f59408f4ceb in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#59 0x00007f594116487a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#60 0x00007f5940934b2e in QTabBar::currentChanged(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#61 0x00007f5940939355 in QTabBar::mousePressEvent(QMouseEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#62 0x00007f594053937b in QWidget::event(QEvent*) ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#63 0x00007f594093b332 in QTabBar::event(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#64 0x00007f59408fb78e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#65 0x00007f59404e9e2c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#66 0x00007f59404f05dd in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#67 0x00007f59422c876b in QgsApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libqgis_core.so.2.6.0
#68 0x00007f59411504dd in QCoreApplication::notifyInternal(QObject*, QEvent*)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#69 0x00007f59404efd93 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#70 0x00007f59405649cb in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#71 0x00007f5940564269 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#72 0x00007f59405794ca in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#73 0x00007f594092d023 in QSplashScreen::finish(QWidget*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#74 0x00000000004fbd73 in main ()
(gdb) quit