Bug 331738

Summary:	Crash after adding application to favorites
Product:	[Unmaintained] plasma4	Reporter:	Jon Ander Peñalba <jonan88>
Component:	widget-lancelot	Assignee:	Ivan Čukić <ivan.cukic>
Status:	RESOLVED UNMAINTAINED
Severity:	crash	CC:	BjoernTiedemann, bushcrafting, cfeck, clay.p.adams, cz3dtc, garylob, info, kdebugs, madeforspam, marataus, pkins91, runtarod, saihenjin, thstyl2000, xghostx.7, zachleigh
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	4.11.3
Target Milestone:	---
Platform:	Debian testing
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi

Description Jon Ander Peñalba 2014-03-04 15:07:37 UTC

Application: lancelot (1.9.5)
KDE Platform Version: 4.11.3
Qt Version: 4.8.6
Operating System: Linux 3.12-1-amd64 x86_64
Distribution: Debian GNU/Linux testing (jessie)

-- Information about the crash:
- What I was doing when the application crashed:

I right clicked an application and added it to favorites, immediately after I opened Lancelot again and the crash occurred.

-- Backtrace:
Application: Lancelot (lancelot), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5af4e2f780 (LWP 3252))]

Thread 2 (Thread 0x7f5ad8a2e700 (LWP 3256)):
#0  0x00007f5ae9a7be1f in __pthread_mutex_unlock_usercnt (mutex=0x7f5ad4000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f5ae8f96351 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5ae8f56726 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5ae8f5691c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5af18b3636 in QEventDispatcherGlib::processEvents (this=0x7f5ad40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#5  0x00007f5af1884f9f in QEventLoop::processEvents (this=this@entry=0x7f5ad8a2ddb0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5af1885295 in QEventLoop::exec (this=this@entry=0x7f5ad8a2ddb0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f5af1781c1f in QThread::exec (this=this@entry=0x2437f00) at thread/qthread.cpp:537
#8  0x00007f5af18667d3 in QInotifyFileSystemWatcherEngine::run (this=0x2437f00) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007f5af17842ef in QThreadPrivate::start (arg=0x2437f00) at thread/qthread_unix.cpp:349
#10 0x00007f5ae9a78e0e in start_thread (arg=0x7f5ad8a2e700) at pthread_create.c:311
#11 0x00007f5af11420fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f5af4e2f780 (LWP 3252)):
[KCrash Handler]
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x309479b, index=10, context=0x3a4e990) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007f5af3e33f84 in Lancelot::ActionListViewItemFactory::itemContext (this=0x43d5880, sender=sender@entry=0x44b43c0, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007f5af3e34096 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x44b43c0, event=0x7fff8ca5b3a0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109
#11 0x00007f5af25d6d95 in QGraphicsItem::sceneEvent (this=0x44b43d0, event=0x7fff8ca5b3a0) at graphicsview/qgraphicsitem.cpp:6725
#12 0x00007f5af25fdf4a in QGraphicsScene::contextMenuEvent (this=<optimized out>, contextMenuEvent=0x7fff8ca5b3a0) at graphicsview/qgraphicsscene.cpp:3617
#13 0x00007f5af2612a25 in QGraphicsScene::event (this=0x218c5a0, event=0x7fff8ca5b3a0) at graphicsview/qgraphicsscene.cpp:3412
#14 0x00007f5af20316cc in QApplicationPrivate::notify_helper (this=this@entry=0x2023fe0, receiver=receiver@entry=0x218c5a0, e=e@entry=0x7fff8ca5b3a0) at kernel/qapplication.cpp:4567
#15 0x00007f5af2037d40 in QApplication::notify (this=this@entry=0x1fff2c0, receiver=receiver@entry=0x218c5a0, e=e@entry=0x7fff8ca5b3a0) at kernel/qapplication.cpp:4353
#16 0x00007f5af322849a in KApplication::notify (this=0x1fff2c0, receiver=0x218c5a0, event=0x7fff8ca5b3a0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f5af18863cd in QCoreApplication::notifyInternal (this=0x1fff2c0, receiver=0x218c5a0, event=event@entry=0x7fff8ca5b3a0) at kernel/qcoreapplication.cpp:953
#18 0x00007f5af262a597 in sendEvent (event=0x7fff8ca5b3a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QGraphicsView::contextMenuEvent (this=0x2183540, event=0x7fff8ca5b870) at graphicsview/qgraphicsview.cpp:2892
#20 0x00007f5af2080f92 in QWidget::event (this=this@entry=0x2183540, event=event@entry=0x7fff8ca5b870) at kernel/qwidget.cpp:8554
#21 0x00007f5af241ec5e in QFrame::event (this=0x2183540, e=0x7fff8ca5b870) at widgets/qframe.cpp:557
#22 0x00007f5af262a049 in QGraphicsView::viewportEvent (this=0x2183540, event=0x7fff8ca5b870) at graphicsview/qgraphicsview.cpp:2866
#23 0x00007f5af1886536 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x2023fe0, receiver=receiver@entry=0x216f730, event=event@entry=0x7fff8ca5b870) at kernel/qcoreapplication.cpp:1063
#24 0x00007f5af20316ac in QApplicationPrivate::notify_helper (this=this@entry=0x2023fe0, receiver=receiver@entry=0x216f730, e=e@entry=0x7fff8ca5b870) at kernel/qapplication.cpp:4563
#25 0x00007f5af2038aa8 in QApplication::notify (this=this@entry=0x1fff2c0, receiver=receiver@entry=0x216f730, e=e@entry=0x7fff8ca5b870) at kernel/qapplication.cpp:4189
#26 0x00007f5af322849a in KApplication::notify (this=0x1fff2c0, receiver=0x216f730, event=0x7fff8ca5b870) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x00007f5af18863cd in QCoreApplication::notifyInternal (this=0x1fff2c0, receiver=receiver@entry=0x216f730, event=event@entry=0x7fff8ca5b870) at kernel/qcoreapplication.cpp:953
#28 0x00007f5af20a9360 in sendSpontaneousEvent (event=0x7fff8ca5b870, receiver=0x216f730) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#29 QETWidget::translateMouseEvent (this=this@entry=0x2183540, event=event@entry=0x7fff8ca5bbb0) at kernel/qapplication_x11.cpp:4545
#30 0x00007f5af20a7d7c in QApplication::x11ProcessEvent (this=0x1fff2c0, event=event@entry=0x7fff8ca5bbb0) at kernel/qapplication_x11.cpp:3663
#31 0x00007f5af20cf6c2 in x11EventSourceDispatch (s=0x2024380, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007f5ae8f56526 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f5ae8f56878 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f5ae8f5691c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f5af18b3615 in QEventDispatcherGlib::processEvents (this=0x1fc2af0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#36 0x00007f5af20cf776 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f5af1884f9f in QEventLoop::processEvents (this=this@entry=0x7fff8ca5bf90, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007f5af1885295 in QEventLoop::exec (this=this@entry=0x7fff8ca5bf90, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007f5af188aa69 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#40 0x00007f5af202fe8c in QApplication::exec () at kernel/qapplication.cpp:3828
#41 0x000000000040cde3 in LancelotApplication::main (argc=<optimized out>, argv=<optimized out>) at ../../../../applets/lancelot/application/LancelotApplication.cpp:113
#42 0x00007f5af107a995 in __libc_start_main (main=0x40cc90 <main(int, char**)>, argc=1, ubp_av=0x7fff8ca5c0f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff8ca5c0e8) at libc-start.c:276
#43 0x000000000040ce17 in _start ()

Possible duplicates by query: bug 281909.

Reported using DrKonqi

Comment 1 sparhawk 2014-04-05 01:30:22 UTC

I just hit this bug too, but slightly differently.

Lancelot crashed immediately after added the favourite. Now, when I click on the launcer icon, nothing happens at all.

Comment 2 thom 2014-04-08 03:49:35 UTC

I hit probably the same bug, here is my crash report:

Application: lancelot (1.9.5)
KDE Platform Version: 4.12.97
Qt Version: 4.8.6
Operating System: Linux 3.13.0-23-generic x86_64
Distribution: Ubuntu Trusty Tahr (development branch)

-- Information about the crash:
added muon to favourites, this crashed lancelot immediately.

The crash can be reproduced every time.

-- Backtrace:
Application: Lancelot (lancelot), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcaa833d800 (LWP 5782))]

Thread 3 (Thread 0x7fca842fc700 (LWP 5787)):
#0  0x00007fca9be6e62d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fca9be6e989 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fca9be2ced5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fca9be2d0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcaa4e247be in QEventDispatcherGlib::processEvents (this=0x7fca7c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007fcaa4df60af in QEventLoop::processEvents (this=this@entry=0x7fca842fbda0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcaa4df63a5 in QEventLoop::exec (this=this@entry=0x7fca842fbda0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcaa4cf2c5f in QThread::exec (this=this@entry=0x1d64640) at thread/qthread.cpp:537
#8  0x00007fcaa4dd7823 in QInotifyFileSystemWatcherEngine::run (this=0x1d64640) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007fcaa4cf532f in QThreadPrivate::start (arg=0x1d64640) at thread/qthread_unix.cpp:349
#10 0x00007fca9c74d182 in start_thread (arg=0x7fca842fc700) at pthread_create.c:312
#11 0x00007fcaa46ab30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fca838b9700 (LWP 5788)):
#0  0x00007fca9be6e62a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fca9be6e9b9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fca9be2c0f0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fca9be2cea5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fca9be2d0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcaa4e247be in QEventDispatcherGlib::processEvents (this=0x7fca700008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007fcaa4df60af in QEventLoop::processEvents (this=this@entry=0x7fca838b8da0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcaa4df63a5 in QEventLoop::exec (this=this@entry=0x7fca838b8da0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcaa4cf2c5f in QThread::exec (this=this@entry=0x201fe70) at thread/qthread.cpp:537
#9  0x00007fcaa4dd7823 in QInotifyFileSystemWatcherEngine::run (this=0x201fe70) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fcaa4cf532f in QThreadPrivate::start (arg=0x201fe70) at thread/qthread_unix.cpp:349
#11 0x00007fca9c74d182 in start_thread (arg=0x7fca838b9700) at pthread_create.c:312
#12 0x00007fcaa46ab30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fcaa833d800 (LWP 5782)):
[KCrash Handler]
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1, index=10, context=0x2f3f090) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007fcaa7369d64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x26ab050, sender=sender@entry=0x2bdb420, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007fcaa7369e76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x2bdb420, event=0x7fff78b648f0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109
#11 0x00007fcaa5b4d5b5 in QGraphicsItem::sceneEvent (this=0x2bdb430, event=0x7fff78b648f0) at graphicsview/qgraphicsitem.cpp:6725
#12 0x00007fcaa5b7470a in QGraphicsScene::contextMenuEvent (this=<optimized out>, contextMenuEvent=0x7fff78b648f0) at graphicsview/qgraphicsscene.cpp:3617
#13 0x00007fcaa5b891d5 in QGraphicsScene::event (this=0x1ca80f0, event=0x7fff78b648f0) at graphicsview/qgraphicsscene.cpp:3412
#14 0x00007fcaa55a3e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1b5be40, receiver=receiver@entry=0x1ca80f0, e=e@entry=0x7fff78b648f0) at kernel/qapplication.cpp:4567
#15 0x00007fcaa55aa4a0 in QApplication::notify (this=this@entry=0x1b2da40, receiver=receiver@entry=0x1ca80f0, e=e@entry=0x7fff78b648f0) at kernel/qapplication.cpp:4353
#16 0x00007fcaa676fbaa in KApplication::notify (this=0x1b2da40, receiver=0x1ca80f0, event=0x7fff78b648f0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007fcaa4df74dd in QCoreApplication::notifyInternal (this=0x1b2da40, receiver=0x1ca80f0, event=event@entry=0x7fff78b648f0) at kernel/qcoreapplication.cpp:953
#18 0x00007fcaa5ba0d07 in sendEvent (event=0x7fff78b648f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QGraphicsView::contextMenuEvent (this=0x1c91d20, event=0x7fff78b64dc0) at graphicsview/qgraphicsview.cpp:2892
#20 0x00007fcaa55f37d2 in QWidget::event (this=this@entry=0x1c91d20, event=event@entry=0x7fff78b64dc0) at kernel/qwidget.cpp:8554
#21 0x00007fcaa5994fce in QFrame::event (this=0x1c91d20, e=0x7fff78b64dc0) at widgets/qframe.cpp:557
#22 0x00007fcaa5ba07b9 in QGraphicsView::viewportEvent (this=0x1c91d20, event=0x7fff78b64dc0) at graphicsview/qgraphicsview.cpp:2866
#23 0x00007fcaa4df7646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1b5be40, receiver=receiver@entry=0x1c8bf80, event=event@entry=0x7fff78b64dc0) at kernel/qcoreapplication.cpp:1063
#24 0x00007fcaa55a3e0c in QApplicationPrivate::notify_helper (this=this@entry=0x1b5be40, receiver=receiver@entry=0x1c8bf80, e=e@entry=0x7fff78b64dc0) at kernel/qapplication.cpp:4563
#25 0x00007fcaa55ab1f8 in QApplication::notify (this=this@entry=0x1b2da40, receiver=receiver@entry=0x1c8bf80, e=e@entry=0x7fff78b64dc0) at kernel/qapplication.cpp:4189
#26 0x00007fcaa676fbaa in KApplication::notify (this=0x1b2da40, receiver=0x1c8bf80, event=0x7fff78b64dc0) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x00007fcaa4df74dd in QCoreApplication::notifyInternal (this=0x1b2da40, receiver=receiver@entry=0x1c8bf80, event=event@entry=0x7fff78b64dc0) at kernel/qcoreapplication.cpp:953
#28 0x00007fcaa561ea20 in sendSpontaneousEvent (event=0x7fff78b64dc0, receiver=0x1c8bf80) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#29 QETWidget::translateMouseEvent (this=this@entry=0x1c91d20, event=event@entry=0x7fff78b65110) at kernel/qapplication_x11.cpp:4639
#30 0x00007fcaa561e269 in QApplication::x11ProcessEvent (this=0x1b2da40, event=event@entry=0x7fff78b65110) at kernel/qapplication_x11.cpp:3627
#31 0x00007fcaa5645b02 in x11EventSourceDispatch (s=0x1b5bcf0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007fca9be2ce04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fca9be2d048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fca9be2d0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fcaa4e247a1 in QEventDispatcherGlib::processEvents (this=0x1a98af0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#36 0x00007fcaa5645bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007fcaa4df60af in QEventLoop::processEvents (this=this@entry=0x7fff78b654e0, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007fcaa4df63a5 in QEventLoop::exec (this=this@entry=0x7fff78b654e0, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007fcaa4dfbb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#40 0x00007fcaa55a237c in QApplication::exec () at kernel/qapplication.cpp:3828
#41 0x000000000040cde3 in LancelotApplication::main (argc=<optimized out>, argv=<optimized out>) at ../../../../applets/lancelot/application/LancelotApplication.cpp:113
#42 0x00007fcaa45d1ec5 in __libc_start_main (main=0x40cc90 <main(int, char**)>, argc=1, argv=0x7fff78b65648, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff78b65638) at libc-start.c:287
#43 0x000000000040ce17 in _start ()

Comment 3 runtarod 2014-04-11 09:57:23 UTC

Created attachment 86042 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.11.5 using Qt 4.8.6

- What I was doing when the application crashed:

Trying to add chromium to the favorites of Lancelot.

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1, index=1, context=0x2c6b310) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007f15be5fcf84 in Lancelot::ActionListViewItemFactory::itemContext (this=0x28e3c70, sender=sender@entry=0x28e5e80, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007f15be5fd096 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x28e5e80, event=0x7fffa42009c0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 4 Zach 2014-04-20 03:49:09 UTC

Created attachment 86181 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.13.0 using Qt 4.8.6

- What I was doing when the application crashed:
Tried to add new favorites to the Lancelot Launcher.  When adding, Lancelot crashes and restores the default favorites.  Happens every time.

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1, index=2, context=0x20cb0c0) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007f37db07bd64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x22a6970, sender=sender@entry=0x1f1ddc0, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007f37db07be76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x1f1ddc0, event=0x7fff0e07e370) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 5 kioftes 2014-04-29 19:16:51 UTC

Created attachment 86351 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.13.0 using Qt 4.8.6

- What I was doing when the application crashed:

Lancelot crashed after I added Chrome to Favorites. Chrome was actually never added.

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1, index=6, context=0x1da26d0) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007fbb0f657d64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x1abb9c0, sender=sender@entry=0x1b31120, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007fbb0f657e76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x1b31120, event=0x7ffff11941e0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 6 Isaac Mercer 2014-05-09 07:00:03 UTC

Same thing happens to me:

Backtrace of the crash I experienced:

Application: Lancelot (lancelot), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa953fec800 (LWP 1795))]

Thread 2 (Thread 0x7fa92b3eb700 (LWP 1797)):
#0  0x00007fa950347fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fa947ad4fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa947ad50ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa950ace7be in QEventDispatcherGlib::processEvents (this=0x7fa9240008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007fa950aa00af in QEventLoop::processEvents (this=this@entry=0x7fa92b3eada0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fa950aa03a5 in QEventLoop::exec (this=this@entry=0x7fa92b3eada0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fa95099cc5f in QThread::exec (this=this@entry=0x1ccabf0) at thread/qthread.cpp:537
#7  0x00007fa950a81823 in QInotifyFileSystemWatcherEngine::run (this=0x1ccabf0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fa95099f32f in QThreadPrivate::start (arg=0x1ccabf0) at thread/qthread_unix.cpp:349
#9  0x00007fa9483f5182 in start_thread (arg=0x7fa92b3eb700) at pthread_create.c:312
#10 0x00007fa95035530d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fa953fec800 (LWP 1795)):
[KCrash Handler]
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1f6723b, index=2, context=0x277d0f0) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007fa953013d64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x21911f0, sender=sender@entry=0x2071b60, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007fa953013e76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x2071b60, event=0x7fffd469f4b0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109
#11 0x00007fa9517f75b5 in QGraphicsItem::sceneEvent (this=0x2071b70, event=0x7fffd469f4b0) at graphicsview/qgraphicsitem.cpp:6725
#12 0x00007fa95181e70a in QGraphicsScene::contextMenuEvent (this=<optimized out>, contextMenuEvent=0x7fffd469f4b0) at graphicsview/qgraphicsscene.cpp:3617
#13 0x00007fa9518331d5 in QGraphicsScene::event (this=0x19daf80, event=0x7fffd469f4b0) at graphicsview/qgraphicsscene.cpp:3412
#14 0x00007fa95124de2c in QApplicationPrivate::notify_helper (this=this@entry=0x18d5d00, receiver=receiver@entry=0x19daf80, e=e@entry=0x7fffd469f4b0) at kernel/qapplication.cpp:4567
#15 0x00007fa9512544a0 in QApplication::notify (this=this@entry=0x18aa810, receiver=receiver@entry=0x19daf80, e=e@entry=0x7fffd469f4b0) at kernel/qapplication.cpp:4353
#16 0x00007fa952419baa in KApplication::notify (this=0x18aa810, receiver=0x19daf80, event=0x7fffd469f4b0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007fa950aa14dd in QCoreApplication::notifyInternal (this=0x18aa810, receiver=0x19daf80, event=event@entry=0x7fffd469f4b0) at kernel/qcoreapplication.cpp:953
#18 0x00007fa95184ad07 in sendEvent (event=0x7fffd469f4b0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QGraphicsView::contextMenuEvent (this=0x19d7ae0, event=0x7fffd469f980) at graphicsview/qgraphicsview.cpp:2892
#20 0x00007fa95129d7d2 in QWidget::event (this=this@entry=0x19d7ae0, event=event@entry=0x7fffd469f980) at kernel/qwidget.cpp:8554
#21 0x00007fa95163efce in QFrame::event (this=0x19d7ae0, e=0x7fffd469f980) at widgets/qframe.cpp:557
#22 0x00007fa95184a7b9 in QGraphicsView::viewportEvent (this=0x19d7ae0, event=0x7fffd469f980) at graphicsview/qgraphicsview.cpp:2866
#23 0x00007fa950aa1646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x18d5d00, receiver=receiver@entry=0x1a31470, event=event@entry=0x7fffd469f980) at kernel/qcoreapplication.cpp:1063
#24 0x00007fa95124de0c in QApplicationPrivate::notify_helper (this=this@entry=0x18d5d00, receiver=receiver@entry=0x1a31470, e=e@entry=0x7fffd469f980) at kernel/qapplication.cpp:4563
#25 0x00007fa9512551f8 in QApplication::notify (this=this@entry=0x18aa810, receiver=receiver@entry=0x1a31470, e=e@entry=0x7fffd469f980) at kernel/qapplication.cpp:4189
#26 0x00007fa952419baa in KApplication::notify (this=0x18aa810, receiver=0x1a31470, event=0x7fffd469f980) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x00007fa950aa14dd in QCoreApplication::notifyInternal (this=0x18aa810, receiver=receiver@entry=0x1a31470, event=event@entry=0x7fffd469f980) at kernel/qcoreapplication.cpp:953
#28 0x00007fa9512c8a20 in sendSpontaneousEvent (event=0x7fffd469f980, receiver=0x1a31470) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#29 QETWidget::translateMouseEvent (this=this@entry=0x19d7ae0, event=event@entry=0x7fffd469fcd0) at kernel/qapplication_x11.cpp:4639
#30 0x00007fa9512c8269 in QApplication::x11ProcessEvent (this=0x18aa810, event=event@entry=0x7fffd469fcd0) at kernel/qapplication_x11.cpp:3627
#31 0x00007fa9512efb02 in x11EventSourceDispatch (s=0x18d5b30, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007fa947ad4e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fa947ad5048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fa947ad50ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fa950ace7a1 in QEventDispatcherGlib::processEvents (this=0x1814af0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#36 0x00007fa9512efbb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007fa950aa00af in QEventLoop::processEvents (this=this@entry=0x7fffd46a00a0, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007fa950aa03a5 in QEventLoop::exec (this=this@entry=0x7fffd46a00a0, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007fa950aa5b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#40 0x00007fa95124c37c in QApplication::exec () at kernel/qapplication.cpp:3828
#41 0x000000000040cde3 in LancelotApplication::main (argc=<optimized out>, argv=<optimized out>) at ../../../../applets/lancelot/application/LancelotApplication.cpp:113
#42 0x00007fa95027bec5 in __libc_start_main (main=0x40cc90 <main(int, char**)>, argc=1, argv=0x7fffd46a0208, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd46a01f8) at libc-start.c:287
#43 0x000000000040ce17 in _start ()

Comment 7 Ivan Čukić 2014-05-22 20:20:02 UTC

*** Bug 335061 has been marked as a duplicate of this bug. ***

Comment 8 Ivan Čukić 2014-05-22 20:50:56 UTC

Can not reproduce, although I got more than a few of these reports.

Can you update to 4.13?

Comment 9 sparhawk 2014-05-23 05:23:47 UTC

Created attachment 86786 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.13.1 using Qt 4.8.6

Still crashes with KDE 4.13.1.

- What I was doing when the application crashed:
Attempted to add application to favourites.

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1, index=31, context=0x43ee210) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007f836e748d64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x4439f10, sender=sender@entry=0x4491870, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007f836e748e76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x4491870, event=0x7fff2164b980) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 10 Isaac Mercer 2014-05-23 09:35:54 UTC

(In reply to comment #8)
> Can not reproduce, although I got more than a few of these reports.
> 
> Can you update to 4.13?

Happens to me on KDE 4.13 as well.

-- Backtrace:
Application: Lancelot (lancelot), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1d39f02800 (LWP 3182))]

Thread 2 (Thread 0x7f1d10ed8700 (LWP 3183)):
#0  0x00007f1d36260fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1d2d9edfe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1d2d9ee0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1d369e77be in QEventDispatcherGlib::processEvents (this=0x7f1d0c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f1d369b90af in QEventLoop::processEvents (this=this@entry=0x7f1d10ed7da0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f1d369b93a5 in QEventLoop::exec (this=this@entry=0x7f1d10ed7da0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f1d368b5c5f in QThread::exec (this=this@entry=0x1f09d10) at thread/qthread.cpp:537
#7  0x00007f1d3699a823 in QInotifyFileSystemWatcherEngine::run (this=0x1f09d10) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f1d368b832f in QThreadPrivate::start (arg=0x1f09d10) at thread/qthread_unix.cpp:349
#9  0x00007f1d2e30e182 in start_thread (arg=0x7f1d10ed8700) at pthread_create.c:312
#10 0x00007f1d3626e30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f1d39f02800 (LWP 3182)):
[KCrash Handler]
#6  QString (other=..., this=<optimized out>) at /usr/include/qt4/QtCore/qstring.h:725
#7  Lancelot::Models::Applications::contextActivate (this=0x1e74b70, index=258362611, context=0x1eccddf4) at ../../../libs/lancelot-datamodels/Applications.cpp:310
#8  0x00007f1d38f2cd64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x2bab780, sender=sender@entry=0x2e42aa0, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#9  0x00007f1d38f2ce76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x2e42aa0, event=0x7fffcce1dcc0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109
#10 0x00007f1d377105b5 in QGraphicsItem::sceneEvent (this=0x2e42ab0, event=0x7fffcce1dcc0) at graphicsview/qgraphicsitem.cpp:6725
#11 0x00007f1d3773770a in QGraphicsScene::contextMenuEvent (this=<optimized out>, contextMenuEvent=0x7fffcce1dcc0) at graphicsview/qgraphicsscene.cpp:3617
#12 0x00007f1d3774c1d5 in QGraphicsScene::event (this=0x1c78ec0, event=0x7fffcce1dcc0) at graphicsview/qgraphicsscene.cpp:3412
#13 0x00007f1d37166e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1b0c0a0, receiver=receiver@entry=0x1c78ec0, e=e@entry=0x7fffcce1dcc0) at kernel/qapplication.cpp:4567
#14 0x00007f1d3716d4a0 in QApplication::notify (this=this@entry=0x1ae0800, receiver=receiver@entry=0x1c78ec0, e=e@entry=0x7fffcce1dcc0) at kernel/qapplication.cpp:4353
#15 0x00007f1d38332baa in KApplication::notify (this=0x1ae0800, receiver=0x1c78ec0, event=0x7fffcce1dcc0) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007f1d369ba4dd in QCoreApplication::notifyInternal (this=0x1ae0800, receiver=0x1c78ec0, event=event@entry=0x7fffcce1dcc0) at kernel/qcoreapplication.cpp:953
#17 0x00007f1d37763d07 in sendEvent (event=0x7fffcce1dcc0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 QGraphicsView::contextMenuEvent (this=0x1c7a6c0, event=0x7fffcce1e190) at graphicsview/qgraphicsview.cpp:2892
#19 0x00007f1d371b67d2 in QWidget::event (this=this@entry=0x1c7a6c0, event=event@entry=0x7fffcce1e190) at kernel/qwidget.cpp:8554
#20 0x00007f1d37557fce in QFrame::event (this=0x1c7a6c0, e=0x7fffcce1e190) at widgets/qframe.cpp:557
#21 0x00007f1d377637b9 in QGraphicsView::viewportEvent (this=0x1c7a6c0, event=0x7fffcce1e190) at graphicsview/qgraphicsview.cpp:2866
#22 0x00007f1d369ba646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1b0c0a0, receiver=receiver@entry=0x1c387a0, event=event@entry=0x7fffcce1e190) at kernel/qcoreapplication.cpp:1063
#23 0x00007f1d37166e0c in QApplicationPrivate::notify_helper (this=this@entry=0x1b0c0a0, receiver=receiver@entry=0x1c387a0, e=e@entry=0x7fffcce1e190) at kernel/qapplication.cpp:4563
#24 0x00007f1d3716e1f8 in QApplication::notify (this=this@entry=0x1ae0800, receiver=receiver@entry=0x1c387a0, e=e@entry=0x7fffcce1e190) at kernel/qapplication.cpp:4189
#25 0x00007f1d38332baa in KApplication::notify (this=0x1ae0800, receiver=0x1c387a0, event=0x7fffcce1e190) at ../../kdeui/kernel/kapplication.cpp:311
#26 0x00007f1d369ba4dd in QCoreApplication::notifyInternal (this=0x1ae0800, receiver=receiver@entry=0x1c387a0, event=event@entry=0x7fffcce1e190) at kernel/qcoreapplication.cpp:953
#27 0x00007f1d371e1a20 in sendSpontaneousEvent (event=0x7fffcce1e190, receiver=0x1c387a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#28 QETWidget::translateMouseEvent (this=this@entry=0x1c7a6c0, event=event@entry=0x7fffcce1e4e0) at kernel/qapplication_x11.cpp:4639
#29 0x00007f1d371e1269 in QApplication::x11ProcessEvent (this=0x1ae0800, event=event@entry=0x7fffcce1e4e0) at kernel/qapplication_x11.cpp:3627
#30 0x00007f1d37208b02 in x11EventSourceDispatch (s=0x1afe0f0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x00007f1d2d9ede04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f1d2d9ee048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f1d2d9ee0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f1d369e77a1 in QEventDispatcherGlib::processEvents (this=0x1a4aaf0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#35 0x00007f1d37208bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007f1d369b90af in QEventLoop::processEvents (this=this@entry=0x7fffcce1e8b0, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007f1d369b93a5 in QEventLoop::exec (this=this@entry=0x7fffcce1e8b0, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007f1d369beb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#39 0x00007f1d3716537c in QApplication::exec () at kernel/qapplication.cpp:3828
#40 0x000000000040cde3 in LancelotApplication::main (argc=<optimized out>, argv=<optimized out>) at ../../../../applets/lancelot/application/LancelotApplication.cpp:113
#41 0x00007f1d36194ec5 in __libc_start_main (main=0x40cc90 <main(int, char**)>, argc=1, argv=0x7fffcce1ea18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffcce1ea08) at libc-start.c:287
#42 0x000000000040ce17 in _start ()

Comment 11 Swedish Steel 2014-06-17 23:48:12 UTC

Created attachment 87239 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.13.1 using Qt 4.8.6

- What I was doing when the application crashed:

Right-clicked an application in Lancelot to add it to Favorites

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1, index=163, context=0x34ec1f0) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007f1ac5d59d64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x3208640, sender=sender@entry=0x3275720, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007f1ac5d59e76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x3275720, event=0x7fffcc6cf7c0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 12 Marat 2014-06-19 02:40:49 UTC

Created attachment 87266 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.13.1 using Qt 4.8.6

- What I was doing when the application crashed: Migrating an application icon in the panel of the favorites panel application.

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x1, index=7, context=0x1cd8e90) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007f71f80d7d64 in Lancelot::ActionListViewItemFactory::itemContext (this=0xf71ff0, sender=sender@entry=0x10c78e0, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007f71f80d7e76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x10c78e0, event=0x7fffba44f690) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 13 xghostx.7 2014-06-26 08:21:31 UTC

Created attachment 87416 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.13.1 using Qt 4.8.6

- What I was doing when the application crashed:

I right clicked an application and added it to favorites,

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x7465676469576577, index=0, context=0x288a9f0) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007faf178ebd64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x286d070, sender=sender@entry=0x2891040, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007faf178ebe76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x2891040, event=0x7fff1ab462b0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 14 saihenjin 2014-08-14 02:16:19 UTC

I am also getting this crash as of KDE 4.13.1 with QT 4.8.6

Comment 15 Tiedemate 2014-10-11 07:57:15 UTC

Update to KDE4.14 via the backports ppa fixes this bug for me on Kubuntu 14.04 x86_64.

Comment 16 sparhawk 2014-10-11 11:06:55 UTC

Still crashes for me for KDE 4.14.1 in Arch Linux.

Comment 17 garylob 2014-12-02 21:04:46 UTC

Application: lancelot (1.9.5)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.13.0-39-generic i686
Distribution: Ubuntu 14.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:

I right clicked on an application then clicked Add To Favorites and Lancelot crashed.

-- Backtrace:
Application: Lancelot (lancelot), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb0f47740 (LWP 1890))]

Thread 3 (Thread 0xa93d0b40 (LWP 1891)):
#0  0xb778e424 in __kernel_vsyscall ()
#1  0xb593756b in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb229f20b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb22903e8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2290528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5c9c95f in QEventDispatcherGlib::processEvents (this=0xa8a00468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0xb5c6b823 in QEventLoop::processEvents (this=this@entry=0xa93d0258, flags=...) at kernel/qeventloop.cpp:149
#7  0xb5c6bb49 in QEventLoop::exec (this=this@entry=0xa93d0258, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5b5823d in QThread::exec (this=this@entry=0x8bb2408) at thread/qthread.cpp:537
#9  0xb5c4bc44 in QInotifyFileSystemWatcherEngine::run (this=0x8bb2408) at io/qfilesystemwatcher_inotify.cpp:265
#10 0xb5b5ab6f in QThreadPrivate::start (arg=0x8bb2408) at thread/qthread_unix.cpp:349
#11 0xb23b6f70 in start_thread (arg=0xa93d0b40) at pthread_create.c:312
#12 0xb59464ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 2 (Thread 0xa378db40 (LWP 1892)):
#0  0xb778e424 in __kernel_vsyscall ()
#1  0xb5954152 in __GI___clock_gettime (clock_id=1, tp=0xa378cff8) at ../sysdeps/unix/clock_gettime.c:115
#2  0xb5bb58cc in do_gettime (frac=0xa378cff0, sec=0xa378cfe8) at tools/qelapsedtimer_unix.cpp:127
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#4  0xb5c9e2a2 in updateCurrentTime (this=0xa2e026e4) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0xa2e026e4, tm=...) at kernel/qeventdispatcher_unix.cpp:460
#6  0xb5c9c82b in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa378d0ec) at kernel/qeventdispatcher_glib.cpp:143
#7  0xb5c9c8bd in timerSourcePrepare (source=0xa2e026b0, timeout=0xa378d0ec) at kernel/qeventdispatcher_glib.cpp:176
#8  0xb228f9b3 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb22902df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb2290528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb5c9c95f in QEventDispatcherGlib::processEvents (this=0xa2e00468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#12 0xb5c6b823 in QEventLoop::processEvents (this=this@entry=0xa378d258, flags=...) at kernel/qeventloop.cpp:149
#13 0xb5c6bb49 in QEventLoop::exec (this=this@entry=0xa378d258, flags=...) at kernel/qeventloop.cpp:204
#14 0xb5b5823d in QThread::exec (this=this@entry=0x8ccb168) at thread/qthread.cpp:537
#15 0xb5c4bc44 in QInotifyFileSystemWatcherEngine::run (this=0x8ccb168) at io/qfilesystemwatcher_inotify.cpp:265
#16 0xb5b5ab6f in QThreadPrivate::start (arg=0x8ccb168) at thread/qthread_unix.cpp:349
#17 0xb23b6f70 in start_thread (arg=0xa378db40) at pthread_create.c:312
#18 0xb59464ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 1 (Thread 0xb0f47740 (LWP 1890)):
[KCrash Handler]
#7  size (this=<error reading variable: Cannot access memory at address 0x32>) at /usr/include/qt4/QtCore/qlist.h:98
#8  size (this=<error reading variable: Cannot access memory at address 0x32>) at /usr/include/qt4/QtCore/qlist.h:137
#9  Lancelot::Models::Applications::contextActivate (this=0x2a, index=index@entry=10, context=0x956e3f8) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#10 0xb7197f88 in Lancelot::ActionListViewItemFactory::itemContext (this=0x94826b0, sender=sender@entry=0x9514768, mouseCoordinate=false, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#11 0xb719811f in Lancelot::ActionListViewItem::contextMenuEvent (this=0x9514768, event=0xbffb61a0) at ../../../libs/lancelot/widgets/ActionListView.cpp:109
#12 0xb65deff8 in QGraphicsItem::sceneEvent (this=this@entry=0x9514770, event=event@entry=0xbffb61a0) at graphicsview/qgraphicsitem.cpp:6725
#13 0xb663b356 in QGraphicsWidget::sceneEvent (this=0x9514768, event=0xbffb61a0) at graphicsview/qgraphicswidget.cpp:1229
#14 0xb6608626 in QGraphicsScenePrivate::sendEvent (this=0x8b09d08, item=0x9514770, event=0xbffb61a0) at graphicsview/qgraphicsscene.cpp:1221
#15 0xb6608cc8 in QGraphicsScene::contextMenuEvent (this=0x8af3908, contextMenuEvent=0xbffb61a0) at graphicsview/qgraphicsscene.cpp:3617
#16 0xb661d94f in QGraphicsScene::event (this=0x8af3908, event=0xbffb61a0) at graphicsview/qgraphicsscene.cpp:3412
#17 0xb5f927f4 in QApplicationPrivate::notify_helper (this=0x89fab68, receiver=0x8af3908, e=0xbffb61a0) at kernel/qapplication.cpp:4567
#18 0xb5f992d3 in QApplication::notify (this=0x89ea140, receiver=receiver@entry=0x8af3908, e=e@entry=0xbffb61a0) at kernel/qapplication.cpp:4353
#19 0xb6d951f4 in KApplication::notify (this=0x89ea140, receiver=0x8af3908, event=0xbffb61a0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0xb5c6ce4a in QCoreApplication::notifyInternal (this=0x89ea140, receiver=0x8af3908, event=event@entry=0xbffb61a0) at kernel/qcoreapplication.cpp:953
#21 0xb6638773 in sendEvent (event=0xbffb61a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QGraphicsView::contextMenuEvent (this=0x8ab6c90, event=0xbffb6610) at graphicsview/qgraphicsview.cpp:2892
#23 0xb5fec718 in QWidget::event (this=this@entry=0x8ab6c90, event=event@entry=0xbffb6610) at kernel/qwidget.cpp:8554
#24 0xb63f278c in QFrame::event (this=this@entry=0x8ab6c90, e=e@entry=0xbffb6610) at widgets/qframe.cpp:557
#25 0xb6480e48 in QAbstractScrollArea::viewportEvent (this=this@entry=0x8ab6c90, e=e@entry=0xbffb6610) at widgets/qabstractscrollarea.cpp:1043
#26 0xb6638107 in QGraphicsView::viewportEvent (this=<optimized out>, event=<optimized out>) at graphicsview/qgraphicsview.cpp:2866
#27 0xb64810c6 in viewportEvent (event=0xbffb6610, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#28 QAbstractScrollAreaFilter::eventFilter (this=0x8ac7db0, o=0x8ade1c0, e=0xbffb6610) at widgets/qabstractscrollarea_p.h:116
#29 0xb5c6cfbe in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x89fab68, receiver=receiver@entry=0x8ade1c0, event=event@entry=0xbffb6610) at kernel/qcoreapplication.cpp:1063
#30 0xb5f927d1 in QApplicationPrivate::notify_helper (this=0x89fab68, receiver=receiver@entry=0x8ade1c0, e=0xbffb6610) at kernel/qapplication.cpp:4563
#31 0xb5f9a9f3 in QApplication::notify (this=0x89ea140, receiver=receiver@entry=0x8ade1c0, e=e@entry=0xbffb6610) at kernel/qapplication.cpp:4189
#32 0xb6d951f4 in KApplication::notify (this=0x89ea140, receiver=0x8ade1c0, event=0xbffb6610) at ../../kdeui/kernel/kapplication.cpp:311
#33 0xb5c6ce4a in QCoreApplication::notifyInternal (this=0x89ea140, receiver=receiver@entry=0x8ade1c0, event=0xbffb6610) at kernel/qcoreapplication.cpp:953
#34 0xb601c809 in sendSpontaneousEvent (event=0xbffb6610, receiver=0x8ade1c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#35 QETWidget::translateMouseEvent (this=0x8ab6c90, event=event@entry=0xbffb685c) at kernel/qapplication_x11.cpp:4639
#36 0xb601bec5 in QApplication::x11ProcessEvent (this=0x89ea140, event=event@entry=0xbffb685c) at kernel/qapplication_x11.cpp:3627
#37 0xb6047524 in x11EventSourceDispatch (s=0x89f9500, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#38 0xb22901e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0xb2290468 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xb2290528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#41 0xb5c9c93b in QEventDispatcherGlib::processEvents (this=this@entry=0x89b8eb8, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#42 0xb60475de in QGuiEventDispatcherGlib::processEvents (this=0x89b8eb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#43 0xb5c6b823 in QEventLoop::processEvents (this=this@entry=0xbffb6b18, flags=...) at kernel/qeventloop.cpp:149
#44 0xb5c6bb49 in QEventLoop::exec (this=this@entry=0xbffb6b18, flags=...) at kernel/qeventloop.cpp:204
#45 0xb5c718fe in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#46 0xb5f90a24 in QApplication::exec () at kernel/qapplication.cpp:3828
#47 0x08052084 in LancelotApplication::main (argc=argc@entry=1, argv=argv@entry=0xbffb6c64) at ../../../../applets/lancelot/application/LancelotApplication.cpp:113
#48 0x08051f0b in main (argc=1, argv=0xbffb6c64) at ../../../../applets/lancelot/application/main.cpp:24

Possible duplicates by query: bug 335061, bug 331738.

Report to https://bugs.kde.org/

Comment 18 Christoph Feck 2014-12-23 17:58:40 UTC

*** Bug 342166 has been marked as a duplicate of this bug. ***

Comment 19 cz3dtc 2014-12-26 19:30:09 UTC

Created attachment 90123 [details]
New crash information added by DrKonqi

lancelot (1.9.5) on KDE Platform 4.14.2 using Qt 4.8.6

- What I was doing when the application crashed:

- Unusual behavior I noticed:

Archlinux , Opensuse , Kubuntu , LinuxMint  behavior is the same and randomly depending on the application (some are going to add to your favorites and some crashes Lancelot)

-- Backtrace (Reduced):
#6  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:98
#7  size (this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:137
#8  Lancelot::Models::Applications::contextActivate (this=0x2f72751, index=20, context=0x33d1cc0) at ../../../libs/lancelot-datamodels/Applications.cpp:307
#9  0x00007fb0081ced64 in Lancelot::ActionListViewItemFactory::itemContext (this=0x25adf90, sender=sender@entry=0x305ab60, mouseCoordinate=<optimized out>, mouseCoordinate@entry=true) at ../../../libs/lancelot/widgets/ActionListView.cpp:621
#10 0x00007fb0081cee76 in Lancelot::ActionListViewItem::contextMenuEvent (this=0x305ab60, event=0x7fff02081c00) at ../../../libs/lancelot/widgets/ActionListView.cpp:109

Comment 20 Ivan Čukić 2015-05-02 13:22:38 UTC

Lancelot for Plasma 4 is unmaintained.

Comment 21 philipp klemm 2016-02-04 22:45:27 UTC

I just had the same problem on kde 4.14.2 on debian 8.3 and may have figured out the problem (or at least a workaround). 
For me changing back the desktop theme to one of the default themes (e.g. Air) let me add entries to the favourites. After that i changed back to my current theme and everything seems to be working fine.