Application: kontact ()

Qt Version: 5.4.2
Operating System: Linux 4.2.0-18-generic x86_64
Distribution: Ubuntu 15.10

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

I tried to view a mail in an IMAP account that was not in Akonadi’s cache. KMail (5.0.2) showed the message “Retrieving Folder Contents. Please wait …”. When nothing happened I restarted Kontact. A blank UI appeared. When I closed Kontact again the crash happened.

Since KMail asked me whether I wanted to “go online” in between, Akonadi or KMail might be stuck in “offline mode”.

The crash can be reproduced every time.

-- Backtrace:
Application: kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe7a87dc880 (LWP 2052))]

Thread 7 (Thread 0x7fe7a48a6700 (LWP 2054)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe7c2df048b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fe7c2df04c9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fe7be5706aa in start_thread (arg=0x7fe7a48a6700) at pthread_create.c:333
#4  0x00007fe7c3ce2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fe75d294700 (LWP 2055)):
#0  0x00007fe7c3cd78dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe7bd8f31ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe7bd8f32fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe7c481829b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe7c47be75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe7c45dc3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe7c45e12be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe7be5706aa in start_thread (arg=0x7fe75d294700) at pthread_create.c:333
#8  0x00007fe7c3ce2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fe7577c1700 (LWP 2056)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe7c2afe5b4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fe7c2e20341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fe7be5706aa in start_thread (arg=0x7fe7577c1700) at pthread_create.c:333
#4  0x00007fe7c3ce2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fe756fc0700 (LWP 2057)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe7c2aff5e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fe7c2e20341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fe7be5706aa in start_thread (arg=0x7fe756fc0700) at pthread_create.c:333
#4  0x00007fe7c3ce2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fe7567bf700 (LWP 2058)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe7c2aff5e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fe7c2e20341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fe7be5706aa in start_thread (arg=0x7fe7567bf700) at pthread_create.c:333
#4  0x00007fe7c3ce2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fe755fbe700 (LWP 2059)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe7c2aff5e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fe7c2e20341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fe7be5706aa in start_thread (arg=0x7fe755fbe700) at pthread_create.c:333
#4  0x00007fe7c3ce2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fe7a87dc880 (LWP 2052)):
[KCrash Handler]
#6  0x00007fe7c50ce1b8 in QWidget::show() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007fe7411cd15d in KMMainWidget::itemsFetchDone (this=0x2bc1a50, job=0x50b1e00) at ../../kmail/kmmainwidget.cpp:4392
#8  0x00007fe7c47f1617 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fe7c5a668d2 in KJob::result (this=this@entry=0x50b1e00, _t1=_t1@entry=0x50b1e00) at ./moc_kjob.cpp:552
#10 0x00007fe7c5a6745a in KJob::emitResult (this=0x50b1e00) at ../../../src/lib/jobs/kjob.cpp:294
#11 0x00007fe7bfab60cf in Akonadi::JobPrivate::handleResponse (this=<optimized out>, tag=<optimized out>, response=...) at ../../../../akonadi/src/core/jobs/job.cpp:59
#12 0x00007fe7bfa79d66 in Akonadi::SessionPrivate::handleCommand (this=<optimized out>, tag=758, cmd=...) at ../../../../akonadi/src/core/session.cpp:223
#13 0x00007fe7bfa7d929 in Akonadi::SessionPrivate::dataReceived (this=0x2b55920) at ../../../../akonadi/src/core/session.cpp:254
#14 0x00007fe7c47f178a in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fe7c47f178a in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fe7befc58fe in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#17 0x00007fe7befd1f11 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007fe7c508eb8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007fe7c5094230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007fe7c47c0f1b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fe7c481874d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fe7bd8f2ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fe7bd8f3250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fe7bd8f32fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fe7c481827f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fe7c47be75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fe7c5a69a1e in KJob::exec (this=this@entry=0x2ba0710) at ../../../src/lib/jobs/kjob.cpp:189
#28 0x00007fe7411a1a56 in KMKernel::cleanup (this=0x2ad9d50) at ../../kmail/kmkernel.cpp:1393
#29 0x00007fe741599c43 in KMailPart::~KMailPart (this=this@entry=0x2a02a80, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../kmail/kmail_part.cpp:111
#30 0x00007fe741599cf9 in KMailPart::~KMailPart (this=0x2a02a80, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../kmail/kmail_part.cpp:113
#31 0x00007fe7c669116e in KontactInterface::Plugin::~Plugin() () from /usr/lib/x86_64-linux-gnu/libKF5KontactInterface.so.5
#32 0x00007fe754ac8866 in KMailPlugin::~KMailPlugin (this=0x26e95e0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kmail/kontactplugin/kmail_plugin.cpp:171
#33 0x00007fe754ac8889 in KMailPlugin::~KMailPlugin (this=0x26e95e0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kmail/kontactplugin/kmail_plugin.cpp:175
#34 0x00007fe7c68ba926 in Kontact::MainWindow::~MainWindow (this=this@entry=0x2665e50, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kontact/src/mainwindow.cpp:298
#35 0x00007fe7c68baad9 in Kontact::MainWindow::~MainWindow (this=0x2665e50, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kontact/src/mainwindow.cpp:300
#36 0x00007fe7c47f2670 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007fe7c50d0edb in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007fe7c51e239b in QMainWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007fe7c61fc177 in KMainWindow::event (this=this@entry=0x2665e50, ev=ev@entry=0x7addff0) at ../../src/kmainwindow.cpp:821
#40 0x00007fe7c62345c5 in KXmlGuiWindow::event (this=0x2665e50, ev=0x7addff0) at ../../src/kxmlguiwindow.cpp:118
#41 0x00007fe7c508eb8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007fe7c5094230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007fe7c47c0f1b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007fe7c47c3057 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007fe7c4817e73 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007fe7bd8f2ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007fe7bd8f3250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007fe7bd8f32fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007fe7c481827f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007fe7c47be75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007fe7c47c62cc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x0000000000404af1 in main (argc=1, argv=0x7ffe53a8dc98) at ../../../kontact/src/main.cpp:220

Reported using DrKonqi