Application: kontact (4.13)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-27-generic i686
Distribution: Ubuntu 14.04 LTS

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

After OS restart, kontact started automatically and asked to migrate password to kwallet. After migrating confirmation kontact has started in 2 instances. After closing one of it's isntances (2nd one), crash appeared.

- Unusual behavior I noticed:

In same time network conenction had a problem with ethernet driver like this:

[   73.803272] ------------[ cut here ]------------
[   73.803292] WARNING: CPU: 1 PID: 0 at /build/buildd/linux-3.13.0/net/sched/sch_generic.c:264 dev_watchdog+0x1f4/0x200()
[   73.803295] NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out
[   73.803296] Modules linked in: nvram binfmt_misc ctr ccm rpcsec_gss_krb5 nfsv4 nfsd auth_rpcgss nfs_acl nfs lockd rfcomm bnep sunrpc fscache uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev hid_multitouch btusb intel_rapl x86_pkg_temp_thermal intel_powerclamp bluetooth coretemp arc4 kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_intel iwlmvm snd_hda_codec crc32_pclmul aesni_intel aes_i586 snd_hwdep mac80211 snd_pcm snd_page_alloc xts snd_seq_midi lrw snd_seq_midi_event gf128mul snd_rawmidi dell_wmi ablk_helper snd_seq sparse_keymap parport_pc cryptd snd_seq_device iwlwifi dell_laptop snd_timer joydev serio_raw dcdbas snd cfg80211 soundcore ppdev lp mei_me rtsx_pci_ms parport mei memstick mac_hid intel_smartconnect lpc_ich hid_generic usbhid hid nouveau i915 rtsx_pci_sdmmc mxm_wmi psmouse ttm i2c_algo_bit drm_kms_helper ahci drm libahci r8169 rtsx_pci mii wmi video
[   73.803387] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.13.0-27-generic #50-Ubuntu
[   73.803390] Hardware name: Dell Inc.          Inspiron 7737/0YHYKX, BIOS A07 01/21/2014
[   73.803391]  00000000 00000000 f7553ec0 c164edf3 f7553f00 f7553ef0 c10567ee c18c5f18
[   73.803399]  f7553f1c 00000000 c18c5f54 00000108 c158d4d4 c158d4d4 00000000 f75c6000
[   73.803407]  ffffffb2 f7553f08 c1056843 00000009 f7553f00 c18c5f18 f7553f1c f7553f40
[   73.803415] Call Trace:
[   73.803422]  [<c164edf3>] dump_stack+0x41/0x52
[   73.803429]  [<c10567ee>] warn_slowpath_common+0x7e/0xa0
[   73.803432]  [<c158d4d4>] ? dev_watchdog+0x1f4/0x200
[   73.803435]  [<c158d4d4>] ? dev_watchdog+0x1f4/0x200
[   73.803438]  [<c1056843>] warn_slowpath_fmt+0x33/0x40
[   73.803441]  [<c158d4d4>] dev_watchdog+0x1f4/0x200
[   73.803448]  [<c1061cd0>] call_timer_fn+0x30/0xf0
[   73.803452]  [<c1061f7f>] ? cascade+0x5f/0x80
[   73.803454]  [<c158d2e0>] ? dev_graft_qdisc+0x70/0x70
[   73.803458]  [<c1062cc4>] run_timer_softirq+0x174/0x250
[   73.803460]  [<c158d2e0>] ? dev_graft_qdisc+0x70/0x70
[   73.803463]  [<c105b478>] __do_softirq+0xc8/0x220
[   73.803466]  [<c105b3b0>] ? cpu_callback+0x160/0x160
[   73.803467]  <IRQ>  [<c105b885>] ? irq_exit+0x95/0xa0
[   73.803475]  [<c165d898>] ? smp_apic_timer_interrupt+0x38/0x50
[   73.803479]  [<c16562ec>] ? apic_timer_interrupt+0x34/0x3c
[   73.803482]  [<c152d33e>] ? cpuidle_enter_state+0x3e/0xd0
[   73.803485]  [<c152d465>] ? cpuidle_idle_call+0x95/0x1c0
[   73.803490]  [<c10174dd>] ? arch_cpu_idle+0xd/0x30
[   73.803496]  [<c10a5399>] ? cpu_startup_entry+0x1c9/0x210
[   73.803500]  [<c103a2a3>] ? setup_APIC_timer+0xe3/0x130
[   73.803503]  [<c10388a8>] ? start_secondary+0x208/0x2d0
[   73.803506] ---[ end trace 172fa5f5edf1ae5a ]---
[   73.853426] r8169 0000:03:00.1 eth0: link up

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb13b1740 (LWP 2172))]

Thread 5 (Thread 0xae8c8b40 (LWP 2181)):
#0  0xb76eb424 in __kernel_vsyscall ()
#1  0xb3165d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb60708ec in __pthread_cond_wait (cond=0xb57bfcb0, mutex=0xb57bfc98) at forward.c:149
#3  0xb4f479ac in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb4f479ff in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb3161f70 in start_thread (arg=0xae8c8b40) at pthread_create.c:312
#6  0xb606370e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 4 (Thread 0xadf9fb40 (LWP 2204)):
#0  0xb76eb424 in __kernel_vsyscall ()
#1  0xb3165d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb60708ec in __pthread_cond_wait (cond=0xae00d7dc, mutex=0xae00d7c4) at forward.c:149
#3  0xb4f769f3 in WTF::ThreadCondition::wait(WTF::Mutex&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb4c52574 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb4f5d7c6 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#6  0xb4f76369 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#7  0xb3161f70 in start_thread (arg=0xadf9fb40) at pthread_create.c:312
#8  0xb606370e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 3 (Thread 0xab610b40 (LWP 2235)):
#0  0xb76eb424 in __kernel_vsyscall ()
#1  0xb6071392 in __GI___clock_gettime (clock_id=1, tp=0xab610078) at ../sysdeps/unix/clock_gettime.c:115
#2  0xb62d18cc in do_gettime (frac=0xab610070, sec=0xab610068) at tools/qelapsedtimer_unix.cpp:127
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#4  0xb63b9f31 in QTimerInfoList::updateCurrentTime (this=this@entry=0xaad028e4) at kernel/qeventdispatcher_unix.cpp:354
#5  0xb63b8cbf in timerSourceCheckHelper (src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:157
#6  0xb307bdff in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb307c37a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb307c528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb63b895f in QEventDispatcherGlib::processEvents (this=0xaad00468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#10 0xb6387823 in QEventLoop::processEvents (this=this@entry=0xab610288, flags=...) at kernel/qeventloop.cpp:149
#11 0xb6387b49 in QEventLoop::exec (this=this@entry=0xab610288, flags=...) at kernel/qeventloop.cpp:204
#12 0xb627423d in QThread::exec (this=this@entry=0x8fd63f8) at thread/qthread.cpp:537
#13 0xb627438b in QThread::run (this=0x8fd63f8) at thread/qthread.cpp:604
#14 0xb6276b6f in QThreadPrivate::start (arg=0x8fd63f8) at thread/qthread_unix.cpp:349
#15 0xb3161f70 in start_thread (arg=0xab610b40) at pthread_create.c:312
#16 0xb606370e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 2 (Thread 0xa9daeb40 (LWP 2376)):
#0  0xb316418a in __GI___pthread_mutex_lock (mutex=0xa9400558) at ../nptl/pthread_mutex_lock.c:125
#1  0xb6070af4 in pthread_mutex_lock (mutex=0xa9400558) at forward.c:192
#2  0xb30c1100 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb307b9bd in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb307c2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb307c528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb63b895f in QEventDispatcherGlib::processEvents (this=0xa9400468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7  0xb6387823 in QEventLoop::processEvents (this=this@entry=0xa9dae258, flags=...) at kernel/qeventloop.cpp:149
#8  0xb6387b49 in QEventLoop::exec (this=this@entry=0xa9dae258, flags=...) at kernel/qeventloop.cpp:204
#9  0xb627423d in QThread::exec (this=this@entry=0x98f8e90) at thread/qthread.cpp:537
#10 0xb6367c44 in QInotifyFileSystemWatcherEngine::run (this=0x98f8e90) at io/qfilesystemwatcher_inotify.cpp:265
#11 0xb6276b6f in QThreadPrivate::start (arg=0x98f8e90) at thread/qthread_unix.cpp:349
#12 0xb3161f70 in start_thread (arg=0xa9daeb40) at pthread_create.c:312
#13 0xb606370e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 1 (Thread 0xb13b1740 (LWP 2172)):
[KCrash Handler]
#7  size (this=<error reading variable: Cannot access memory at address 0x14>) at /usr/include/qt4/QtCore/qlist.h:98
#8  count (this=<error reading variable: Cannot access memory at address 0x14>) at /usr/include/qt4/QtCore/qlist.h:280
#9  size (this=<error reading variable: Cannot access memory at address 0x14>) at ../../kmail/undostack.h:52
#10 KMMainWidget::updateMessageActionsDelayed (this=0xa6ba178) at ../../kmail/kmmainwidget.cpp:3979
#11 0xac0e3a39 in KMMainWidget::updateMessageActions (this=this@entry=0xa6ba178, fast=fast@entry=false) at ../../kmail/kmmainwidget.cpp:3809
#12 0xac0e47d9 in KMMainWidget::initializeFilterActions (this=0xa6ba178) at ../../kmail/kmmainwidget.cpp:4317
#13 0xac9f4519 in KMailPart::guiActivateEvent (this=0x9133358, e=0xbfa5e8fc) at ../../kmail/kmail_part.cpp:159
#14 0xb5f447fc in KParts::Part::customEvent (this=0x9133358, ev=0xbfa5e8fc) at ../../kparts/part.cpp:319
#15 0xb63a2762 in QObject::event (this=0x9133358, e=0xbfa5e8fc) at kernel/qobject.cpp:1225
#16 0xb68e47f4 in QApplicationPrivate::notify_helper (this=0x8e273d8, receiver=0x9133358, e=0xbfa5e8fc) at kernel/qapplication.cpp:4567
#17 0xb68eb2d3 in QApplication::notify (this=0xbfa5f158, receiver=receiver@entry=0x9133358, e=e@entry=0xbfa5e8fc) at kernel/qapplication.cpp:4353
#18 0xb74340a4 in KApplication::notify (this=0xbfa5f158, receiver=0x9133358, event=0xbfa5e8fc) at ../../kdeui/kernel/kapplication.cpp:311
#19 0xb6388e4a in QCoreApplication::notifyInternal (this=0xbfa5f158, receiver=0x9133358, event=event@entry=0xbfa5e8fc) at kernel/qcoreapplication.cpp:953
#20 0xb5f501e0 in sendEvent (event=0xbfa5e8fc, receiver=<optimized out>) at /usr/include/qt4/QtCore/qcoreapplication.h:231
#21 KParts::MainWindow::createGUI (this=this@entry=0x8f17090, part=part@entry=0x0) at ../../kparts/mainwindow.cpp:101
#22 0xb76880eb in Kontact::MainWindow::~MainWindow (this=this@entry=0x8f17090, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kontact/src/mainwindow.cpp:278
#23 0xb76882bc in Kontact::MainWindow::~MainWindow (this=0x8f17090, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kontact/src/mainwindow.cpp:298
#24 0xb639c553 in qDeleteInEventHandler (o=o@entry=0x8f17090) at kernel/qobject.cpp:4280
#25 0xb63a2720 in QObject::event (this=0x8f17090, e=0x913cb40) at kernel/qobject.cpp:1175
#26 0xb693e452 in QWidget::event (this=0x8f17090, event=event@entry=0x913cb40) at kernel/qwidget.cpp:8846
#27 0xb6d6054f in QMainWindow::event (this=this@entry=0x8f17090, event=event@entry=0x913cb40) at widgets/qmainwindow.cpp:1478
#28 0xb7502795 in KMainWindow::event (this=this@entry=0x8f17090, ev=ev@entry=0x913cb40) at ../../kdeui/widgets/kmainwindow.cpp:1084
#29 0xb75444e6 in KXmlGuiWindow::event (this=0x8f17090, ev=0x913cb40) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#30 0xb68e47f4 in QApplicationPrivate::notify_helper (this=0x8e273d8, receiver=0x8f17090, e=0x913cb40) at kernel/qapplication.cpp:4567
#31 0xb68eb2d3 in QApplication::notify (this=0xbfa5f158, receiver=receiver@entry=0x8f17090, e=e@entry=0x913cb40) at kernel/qapplication.cpp:4353
#32 0xb74340a4 in KApplication::notify (this=0xbfa5f158, receiver=0x8f17090, event=0x913cb40) at ../../kdeui/kernel/kapplication.cpp:311
#33 0xb6388e4a in QCoreApplication::notifyInternal (this=0xbfa5f158, receiver=receiver@entry=0x8f17090, event=event@entry=0x913cb40) at kernel/qcoreapplication.cpp:953
#34 0xb638c70d in sendEvent (event=0x913cb40, receiver=0x8f17090) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#35 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x8dfa010) at kernel/qcoreapplication.cpp:1577
#36 0xb638cc1c in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#37 0xb63b923e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#38 postEventSourceDispatch (s=0x8e28b90) at kernel/qeventdispatcher_glib.cpp:287
#39 0xb307c1e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xb307c468 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#41 0xb307c528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#42 0xb63b893b in QEventDispatcherGlib::processEvents (this=this@entry=0x8e22a80, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#43 0xb69995de in QGuiEventDispatcherGlib::processEvents (this=0x8e22a80, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#44 0xb6387823 in QEventLoop::processEvents (this=this@entry=0xbfa5f0a8, flags=...) at kernel/qeventloop.cpp:149
#45 0xb6387b49 in QEventLoop::exec (this=this@entry=0xbfa5f0a8, flags=...) at kernel/qeventloop.cpp:204
#46 0xb638d8fe in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#47 0xb68e2a24 in QApplication::exec () at kernel/qapplication.cpp:3828
#48 0x0804ab4c in main (argc=3, argv=0xbfa5f234) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 323565.

Reported using DrKonqi