Application: kmail (4.14.1)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.16.0-4-amd64 x86_64
Distribution: Debian GNU/Linux 8.1 (jessie)

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

Selecting/deselecting text in message panel when reading an IMAP email

-- Backtrace:
Application: KMail (kmail), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f79267f8800 (LWP 1507))]

Thread 4 (Thread 0x7f78fe734700 (LWP 1512)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7917e1306f in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f7917e130a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f792131f0a4 in start_thread (arg=0x7f78fe734700) at pthread_create.c:309
#4  0x00007f7923a6a04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f78bcf10700 (LWP 1513)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7917b35973 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f7917e427f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f792131f0a4 in start_thread (arg=0x7f78bcf10700) at pthread_create.c:309
#4  0x00007f7923a6a04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f78b7fff700 (LWP 1514)):
#0  0x00007f7923a6150d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f791b74bee4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f791b74bffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7924403d37 in QEventDispatcherGlib::processEvents (this=0x7f78b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f79243d3271 in QEventLoop::processEvents (this=this@entry=0x7f78b7ffedd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f79243d35d5 in QEventLoop::exec (this=this@entry=0x7f78b7ffedd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f79242c7e99 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#7  0x00007f79242ca70f in QThreadPrivate::start (arg=0x1f03b30) at thread/qthread_unix.cpp:349
#8  0x00007f792131f0a4 in start_thread (arg=0x7f78b7fff700) at pthread_create.c:309
#9  0x00007f7923a6a04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f79267f8800 (LWP 1507)):
[KCrash Handler]
#6  0x00007f79239b9107 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#7  0x00007f79239ba4e8 in __GI_abort () at abort.c:89
#8  0x00007f79239b2226 in __assert_fail_base (fmt=0x7f7923ae8ce8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f79232d1f60 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f79232d1dab "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f79232d2266 "poll_for_event") at assert.c:92
#9  0x00007f79239b22d2 in __GI___assert_fail (assertion=0x7f79232d1f60 "!xcb_xlib_threads_sequence_lost", file=0x7f79232d1dab "../../src/xcb_io.c", line=274, function=0x7f79232d2266 "poll_for_event") at assert.c:101
#10 0x00007f792325ea79 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#11 0x00007f792325eb2b in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#12 0x00007f792325ee3d in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#13 0x00007f79232619f0 in _XData32 () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#14 0x00007f792323b923 in XChangeProperty () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#15 0x00007f792499c87d in QWidgetPrivate::setWindowIcon_sys (this=this@entry=0x367f340, forceReset=forceReset@entry=false) at kernel/qwidget_x11.cpp:1548
#16 0x00007f792494e3b8 in QWidget::create (this=this@entry=0x6479e70, window=window@entry=0, initializeWindow=initializeWindow@entry=true, destroyOldWindow=destroyOldWindow@entry=true) at kernel/qwidget.cpp:1543
#17 0x00007f7924956ca2 in QWidget::setVisible (this=0x6479e70, visible=<optimized out>) at kernel/qwidget.cpp:7726
#18 0x00007f792498fa8f in show (this=<optimized out>) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#19 QDragManager::updatePixmap (this=this@entry=0x23e0bb0) at kernel/qdnd_x11.cpp:2079
#20 0x00007f7924990d35 in QDragManager::drag (this=0x23e0bb0, o=o@entry=0x6186c60) at kernel/qdnd_x11.cpp:2007
#21 0x00007f7924915f5a in QDrag::exec (this=0x6186c60, supportedActions=..., defaultDropAction=defaultDropAction@entry=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#22 0x00007f7924916023 in QDrag::exec (this=<optimized out>, supportedActions=...) at kernel/qdrag.cpp:239
#23 0x00007f791681163f in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#24 0x00007f7916ea1466 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#25 0x00007f7916ea2023 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#26 0x00007f7916ea7912 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#27 0x00007f7916ea8c81 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#28 0x00007f7916eaf9b8 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#29 0x00007f7916eb2b21 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#30 0x00007f79167e5f4d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#31 0x00007f79167f2536 in QWebPage::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#32 0x00007f79167f32f0 in QWebView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#33 0x00007f7924957748 in QWidget::event (this=0x1f05bc0, event=0x7fff9bc2e480) at kernel/qwidget.cpp:8775
#34 0x00007f79167f4447 in QWebView::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#35 0x00007f791c8ad026 in MessageViewer::MailWebView::event (this=0x1f05bc0, event=0x7fff9bc2e480) at ../../messageviewer/viewer/mailwebview_webkit.cpp:162
#36 0x00007f792490448c in QApplicationPrivate::notify_helper (this=this@entry=0x19f2ab0, receiver=receiver@entry=0x1f05bc0, e=e@entry=0x7fff9bc2e480) at kernel/qapplication.cpp:4570
#37 0x00007f792490b10f in QApplication::notify (this=this@entry=0x7fff9bc2ef80, receiver=receiver@entry=0x1f05bc0, e=e@entry=0x7fff9bc2e480) at kernel/qapplication.cpp:4113
#38 0x00007f79261fc1aa in KApplication::notify (this=0x7fff9bc2ef80, receiver=0x1f05bc0, event=0x7fff9bc2e480) at ../../kdeui/kernel/kapplication.cpp:311
#39 0x00007f79243d471d in QCoreApplication::notifyInternal (this=0x7fff9bc2ef80, receiver=receiver@entry=0x1f05bc0, event=event@entry=0x7fff9bc2e480) at kernel/qcoreapplication.cpp:955
#40 0x00007f792490a76f in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#41 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x1f05bc0, event=event@entry=0x7fff9bc2e480, alienWidget=alienWidget@entry=0x1f05bc0, nativeWidget=nativeWidget@entry=0x1ed2ca0, buttonDown=buttonDown@entry=0x7f7925429538 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3178
#42 0x00007f7924981432 in QETWidget::translateMouseEvent (this=this@entry=0x1ed2ca0, event=event@entry=0x7fff9bc2e7e0) at kernel/qapplication_x11.cpp:4540
#43 0x00007f792497fe2c in QApplication::x11ProcessEvent (this=0x7fff9bc2ef80, event=event@entry=0x7fff9bc2e7e0) at kernel/qapplication_x11.cpp:3663
#44 0x00007f79249a8ed2 in x11EventSourceDispatch (s=0x19f2f60, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#45 0x00007f791b74bc5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f791b74bf48 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f791b74bffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f7924403d1d in QEventDispatcherGlib::processEvents (this=0x1954b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#49 0x00007f79249a8f96 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f79243d3271 in QEventLoop::processEvents (this=this@entry=0x7fff9bc2ebc0, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f79243d35d5 in QEventLoop::exec (this=this@entry=0x7fff9bc2ebc0, flags=...) at kernel/qeventloop.cpp:204
#52 0x00007f79243d9059 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#53 0x00007f792490292c in QApplication::exec () at kernel/qapplication.cpp:3828
#54 0x0000000000402d9b in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:146

Possible duplicates by query: bug 335915, bug 315521, bug 311955, bug 307509, bug 303176.

Reported using DrKonqi