Application: kmail (4.13.3)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.13.0-68-generic x86_64
Distribution: Ubuntu 14.04.3 LTS

-- Information about the crash:
I clicked on the Kmail Icon, and then this debug report showsup

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7372212800 (LWP 24471))]

Thread 5 (Thread 0x7f734956f700 (LWP 24472)):
#0  0x00007f736f56c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f73675f7fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f73675f830a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f734ef7d336 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f736761cf05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f736ce3b182 in start_thread (arg=0x7f734956f700) at pthread_create.c:312
#6  0x00007f736f57947d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f7348d6e700 (LWP 24473)):
#0  0x00007f736f56c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f73675f7fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f73675f80ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f73675f8129 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f736761cf05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f736ce3b182 in start_thread (arg=0x7f7348d6e700) at pthread_create.c:312
#6  0x00007f736f57947d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f7343fff700 (LWP 24474)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f7367639ce5 in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f73675ce1c1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f73675ce74b in g_async_queue_timeout_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f736761d956 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f736761cf05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f736ce3b182 in start_thread (arg=0x7f7343fff700) at pthread_create.c:312
#7  0x00007f736f57947d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f733594c700 (LWP 24481)):
#0  0x00007f736f56c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f73675f7fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f73675f80ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f736ff087be in QEventDispatcherGlib::processEvents (this=0x7f73300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f736feda0af in QEventLoop::processEvents (this=this@entry=0x7f733594bda0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f736feda3a5 in QEventLoop::exec (this=this@entry=0x7f733594bda0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f736fdd6c5f in QThread::exec (this=this@entry=0x240a9d0) at thread/qthread.cpp:537
#7  0x00007f736febb823 in QInotifyFileSystemWatcherEngine::run (this=0x240a9d0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f736fdd932f in QThreadPrivate::start (arg=0x240a9d0) at thread/qthread_unix.cpp:349
#9  0x00007f736ce3b182 in start_thread (arg=0x7f733594c700) at pthread_create.c:312
#10 0x00007f736f57947d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f7372212800 (LWP 24471)):
[KCrash Handler]
#6  operator= (v=..., this=0x0) at ../../include/QtCore/../../src/corelib/tools/qvector.h:394
#7  clear (this=0x0) at ../../include/QtCore/../../src/corelib/tools/qvector.h:348
#8  QTextEngine::clearLineData (this=0x0) at text/qtextengine.cpp:1483
#9  0x00007f7370661268 in QTextLayout::clearLayout (this=<optimized out>) at text/qtextlayout.cpp:659
#10 0x00007f7370672e6c in QTextBlock::clearLayout (this=this@entry=0x7ffee801aa40) at text/qtextobject.cpp:1084
#11 0x00007f73706aa0e3 in QTextDocumentLayout::documentChanged (this=0x22fffc0, from=0, oldLength=0, length=6705) at text/qtextdocumentlayout.cpp:2882
#12 0x00007f7370864663 in QTextEditPrivate::relayoutDocument (this=this@entry=0x2447bb0) at widgets/qtextedit.cpp:1438
#13 0x00007f7370864e60 in QTextEdit::resizeEvent (this=<optimized out>, e=0x7ffee801af00) at widgets/qtextedit.cpp:1397
#14 0x00007f737045c2ce in QWidget::event (this=this@entry=0x2421070, event=event@entry=0x7ffee801af00) at kernel/qwidget.cpp:8541
#15 0x00007f73707fe04e in QFrame::event (this=0x2421070, e=0x7ffee801af00) at widgets/qframe.cpp:557
#16 0x00007f736fedb646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1ea9070, receiver=receiver@entry=0x2385ed0, event=event@entry=0x7ffee801af00) at kernel/qcoreapplication.cpp:1063
#17 0x00007f737040ce0c in QApplicationPrivate::notify_helper (this=this@entry=0x1ea9070, receiver=receiver@entry=0x2385ed0, e=e@entry=0x7ffee801af00) at kernel/qapplication.cpp:4563
#18 0x00007f73704134a0 in QApplication::notify (this=this@entry=0x7ffee801bd70, receiver=receiver@entry=0x2385ed0, e=e@entry=0x7ffee801af00) at kernel/qapplication.cpp:4353
#19 0x00007f7371c48d1a in KApplication::notify (this=0x7ffee801bd70, receiver=0x2385ed0, event=0x7ffee801af00) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f736fedb4dd in QCoreApplication::notifyInternal (this=0x7ffee801bd70, receiver=receiver@entry=0x2385ed0, event=event@entry=0x7ffee801af00) at kernel/qcoreapplication.cpp:953
#21 0x00007f7370458301 in sendEvent (event=0x7ffee801af00, receiver=0x2385ed0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QWidgetPrivate::sendPendingMoveAndResizeEvents (this=this@entry=0x24dbfe0, recursive=recursive@entry=false, disableUpdates=<optimized out>, disableUpdates@entry=false) at kernel/qwidget.cpp:7446
#23 0x00007f7370459903 in QWidgetPrivate::show_helper (this=this@entry=0x24dbfe0) at kernel/qwidget.cpp:7497
#24 0x00007f737045b6c4 in QWidget::setVisible (this=0x2385ed0, visible=<optimized out>) at kernel/qwidget.cpp:7778
#25 0x00007f737045989e in show (this=0x2385ed0) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#26 QWidgetPrivate::showChildren (this=this@entry=0x2447bb0, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7866
#27 0x00007f737045991f in QWidgetPrivate::show_helper (this=this@entry=0x2447bb0) at kernel/qwidget.cpp:7503
#28 0x00007f737045b6c4 in QWidget::setVisible (this=0x2421070, visible=<optimized out>) at kernel/qwidget.cpp:7778
#29 0x00007f737045989e in show (this=0x2421070) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#30 QWidgetPrivate::showChildren (this=this@entry=0x27c7000, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7866
#31 0x00007f737045991f in QWidgetPrivate::show_helper (this=this@entry=0x27c7000) at kernel/qwidget.cpp:7503
#32 0x00007f737045b6c4 in QWidget::setVisible (this=0x27aaa90, visible=<optimized out>) at kernel/qwidget.cpp:7778
#33 0x00007f737045989e in show (this=0x27aaa90) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#34 QWidgetPrivate::showChildren (this=this@entry=0x27c6bb0, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7866
#35 0x00007f737045991f in QWidgetPrivate::show_helper (this=this@entry=0x27c6bb0) at kernel/qwidget.cpp:7503
#36 0x00007f737045b6c4 in QWidget::setVisible (this=0x2499260, visible=<optimized out>) at kernel/qwidget.cpp:7778
#37 0x00007f737045989e in show (this=0x2499260) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#38 QWidgetPrivate::showChildren (this=this@entry=0x2741e30, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7866
#39 0x00007f737045991f in QWidgetPrivate::show_helper (this=this@entry=0x2741e30) at kernel/qwidget.cpp:7503
#40 0x00007f737045b6c4 in QWidget::setVisible (this=0x27ab4e0, visible=<optimized out>) at kernel/qwidget.cpp:7778
#41 0x00007f737045989e in show (this=0x27ab4e0) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#42 QWidgetPrivate::showChildren (this=this@entry=0x249c140, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7866
#43 0x00007f737045991f in QWidgetPrivate::show_helper (this=this@entry=0x249c140) at kernel/qwidget.cpp:7503
#44 0x00007f737045b6c4 in QWidget::setVisible (this=0x248b5c0, visible=<optimized out>) at kernel/qwidget.cpp:7778
#45 0x00007f737045989e in show (this=0x248b5c0) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#46 QWidgetPrivate::showChildren (this=this@entry=0x249bf40, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7866
#47 0x00007f737045991f in QWidgetPrivate::show_helper (this=this@entry=0x249bf40) at kernel/qwidget.cpp:7503
#48 0x00007f737045b6c4 in QWidget::setVisible (this=0x2499520, visible=<optimized out>) at kernel/qwidget.cpp:7778
#49 0x00007f737045989e in show (this=0x2499520) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:497
#50 QWidgetPrivate::showChildren (this=this@entry=0x2485b30, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7866
#51 0x00007f737045991f in QWidgetPrivate::show_helper (this=this@entry=0x2485b30) at kernel/qwidget.cpp:7503
#52 0x00007f737045b6c4 in QWidget::setVisible (this=0x248aee0, visible=<optimized out>) at kernel/qwidget.cpp:7778
#53 0x00007f7370fabe4e in show (this=0x248aee0) at /usr/include/qt4/QtGui/qwidget.h:497
#54 KMKernel::recoverDeadLetters (this=this@entry=0x7ffee801bda0) at ../../kmail/kmkernel.cpp:1152
#55 0x0000000000402ceb in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:136

Possible duplicates by query: bug 350048, bug 346553, bug 341735.

Reported using DrKonqi