Bug 278475

Application: lancelot (1.9.5)
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.3
Operating System: Linux 3.0.0-rc7-2-desktop x86_64
Distribution: "openSUSE 12.1 Milestone 3 (x86_64)"

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

I was browser through my applications listed in one column (ex. under Utilities) then click another column (ex. System) and Lancelot crashed.

There is an old bug closed from the pre-4.6 era (#263901) and my issues is the exact same.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Lancelot (lancelot), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f70a1cf0760 (LWP 22314))]

Thread 2 (Thread 0x7f70895f4700 (LWP 22315)):
#0  0x00007f709e105813 in __poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f70959cedb8 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f70959cf279 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f709f4ecef6 in QEventDispatcherGlib::processEvents (this=0x9fd7d0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f709f4c1452 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f709f4c164f in QEventLoop::exec (this=0x7f70895f3df0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f709f3d90df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:492
#7  0x00007f709f4a451f in QInotifyFileSystemWatcherEngine::run (this=0xa00f60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f709f3dbb25 in QThreadPrivate::start (arg=0xa00f60) at thread/qthread_unix.cpp:320
#9  0x00007f709c5b4e55 in start_thread (arg=0x7f70895f4700) at pthread_create.c:301
#10 0x00007f709e10e86d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f70a1cf0760 (LWP 22314)):
[KCrash Handler]
#6  0x00007f70a1321419 in Plasma::KineticScrolling::eventFilter (this=0xd865e0, watched=<optimized out>, event=0xe7c6a0) at /usr/src/debug/kdelibs-4.6.5/plasma/private/kineticscroll.cpp:394
#7  0x00007f709f4c23d8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0xd0ae10, event=0xe7c6a0) at kernel/qcoreapplication.cpp:846
#8  0x00007f709e8979af in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#9  0x00007f709e89c871 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#10 0x00007f70a00941e6 in KApplication::notify (this=0x6626e0, receiver=0xd0ae10, event=0xe7c6a0) at /usr/src/debug/kdelibs-4.6.5/kdeui/kernel/kapplication.cpp:311
#11 0x00007f709f4c224c in QCoreApplication::notifyInternal (this=0x6626e0, receiver=0xd0ae10, event=0xe7c6a0) at kernel/qcoreapplication.cpp:731
#12 0x00007f709f4c5628 in sendEvent (event=0xe7c6a0, receiver=0xd0ae10) at kernel/qcoreapplication.h:215
#13 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x62b420) at kernel/qcoreapplication.cpp:1372
#14 0x00007f709f4eca33 in sendPostedEvents () at kernel/qcoreapplication.h:220
#15 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#16 0x00007f70959ce8ad in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#17 0x00007f70959cf0a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#18 0x00007f70959cf279 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#19 0x00007f709f4ece8f in QEventDispatcherGlib::processEvents (this=0x631550, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#20 0x00007f709e93a61e in ?? () from /usr/lib64/libQtGui.so.4
#21 0x00007f709f4c1452 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007f709f4c164f in QEventLoop::exec (this=0x7fff4b170ac0, flags=...) at kernel/qeventloop.cpp:201
#23 0x00007f709f4c5817 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#24 0x000000000040d8ed in LancelotApplication::main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kdeplasma-addons-4.6.5/applets/lancelot/application/LancelotApplication.cpp:113
#25 0x00007f709e05900d in __libc_start_main (main=0x40d7a0 <main(int, char**)>, argc=1, ubp_av=0x7fff4b170c48, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4b170c38) at libc-start.c:226
#26 0x000000000040d921 in _start () at ../sysdeps/x86_64/elf/start.S:113

Possible duplicates by query: bug 272764, bug 263901, bug 261035, bug 258283, bug 253524.

Reported using DrKonqi